613 results
Search Results
2. Quill Mites of the Subfamily Syringophilinae (Acariformes: Syringophilidae) Parasitising Starlings (Passeriformes: Sturnidae) †.
- Author
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Marcisova, Iva, Skoracki, Maciej, Patan, Milena, Hromada, Martin, and Sikora, Bozena
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BIOLOGICAL classification ,STARLINGS ,ACARIFORMES ,BIRD parasites ,MITES - Abstract
Simple Summary: This study provides detailed information on six previously described species of syringophilines associated with starlings and records new host and locality data. Additionally, three new species are described: Aulonastus indonesianus sp. n., Aulonastus anais sp. n., and Syringophiloidus poeopterus sp. n., from various starling hosts across Indonesia, Papua New Guinea, and Tanzania. The study reveals that species from the genera Syringophiloidus and Syringophilopsis exhibit a broad host range among passerine birds, suggesting a long-established symbiotic relationship before the global dispersal of starlings. In Europe, the Eurasian Starling hosts Krantziaulonastus, while in Africa, related niches are occupied by Picobiinae mites. The research highlights the intricate coevolutionary dynamics between quill mites and their avian hosts. Quill mites of the family Syringophilidae are widely distributed parasites of birds inhabiting the interior of feather quills. In this paper, we provide detailed information on the host spectrum and distribution for six previously described species of syringophilines associated with starlings with new host and locality records. Additionally, we describe three new species: Aulonastus indonesianus Marcisova, Skoracki, and Patan sp. n. from the Common Hill Myna Gracula religiosa Linnaeus in Indonesia (Java) and the White-necked Myna Streptocitta albicollis (Vieillot) in Indonesia (Celebes); Aulonastus anais Skoracki and Patan sp. n. from the Golden Myna Mino anais (Lesson) in Papua New Guinea; and Syringophiloidus poeopterus Skoracki and Patan sp. n. from the Abbott's Starling Poeoptera femoralis (Richmond) in Tanzania. Finally, we explore the host–parasite interactions within the system comprising starlings and syringophiline mites. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Ticks on game animals in the fragmented agricultural landscape of western Poland
- Author
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Andżelina Łopińska, Olaf Ciebiera, and Grzegorz Gabryś
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Male ,Haemaphysalis concinna ,Ixodes ricinus ,Ixodidae ,red deer ,Sus scrofa ,030231 tropical medicine ,Zoology ,Immunology and Host-Parasite Interactions - Original Paper ,medicine.disease_cause ,030308 mycology & parasitology ,Ixodida ,03 medical and health sciences ,Ticks ,0302 clinical medicine ,Capreolus ,Wild boar ,Dermacentor reticulatus ,biology.animal ,Infestation ,Prevalence ,medicine ,Animals ,roe deer ,Acari ,Dermacentor ,0303 health sciences ,Ixodes ,General Veterinary ,biology ,Deer ,General Medicine ,biology.organism_classification ,Tick Infestations ,Roe deer ,Infectious Diseases ,Eurasian wild boar ,Insect Science ,Female ,Parasitology ,Poland - Abstract
Ticks (Acari: Ixodida) are well known external parasites of game animals that cause serious veterinary and medical problems. The occurrence and geographical distribution of different species of ticks in Western Poland have changed over the last decades. The purpose of the present study was to determine the species spectrum and prevalence of ticks parasitizing three species of game animals, the Eurasian wild boar Sus scrofa L., red deer Cervus elaphus L., and roe deer Capreolus capreolus (L.) in two hunting districts in Lubuskie Province. In addition, the distribution of ticks on the host’s body and the intensity of infestation were determined. Ticks were collected from dead animals during the hunting seasons in 2013 and 2014, over the periods from May to June and from August to December. In total, 286 specimens were examined: 138 Eurasian wild boars, 8 red deers, and 140 roe deers. Altogether, 1891 ticks were collected. Three species of ticks were determined: Ixodes ricinus (L.), Dermacentor reticulatus (Fabricius, 1794), and Haemaphysalis concinna (C.L. Koch, 1844). H. concinna was recorded for the first time in Lubuskie Province.
- Published
- 2021
4. Oral delivery of water-soluble compounds to the phytoseiid mite Neoseiulus californicus (Acari: Phytoseiidae)
- Author
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Takeshi Suzuki and Noureldin Abuelfadl Ghazy
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0106 biological sciences ,Life Cycles ,Biological pest control ,01 natural sciences ,Biochemistry ,Predation ,Toxicology ,Larvae ,RNA interference ,Filter Paper ,immune system diseases ,Group-Specific Staining ,Acari ,Staining ,Larva ,Mites ,Fluids ,Multidisciplinary ,biology ,integumentary system ,Physics ,Eukaryota ,Agriculture ,Laboratory Equipment ,Nucleic acids ,Genetic interference ,Physical Sciences ,Medicine ,Engineering and Technology ,Epigenetics ,Female ,Research Article ,Phytoseiidae ,States of Matter ,Arthropoda ,Science ,Equipment ,Tracer Dye Staining ,Research and Analysis Methods ,010603 evolutionary biology ,Xenobiotics ,Gene Delivery ,parasitic diseases ,Mite ,Genetics ,Gene Expression and Vector Techniques ,Animals ,Pesticides ,Molecular Biology Techniques ,Pest Control, Biological ,Molecular Biology ,Acaridae ,Molecular Biology Assays and Analysis Techniques ,business.industry ,Pest control ,Organisms ,Biology and Life Sciences ,Liquids ,Pesticide ,biology.organism_classification ,Invertebrates ,respiratory tract diseases ,High-Throughput Screening Assays ,010602 entomology ,Solubility ,Specimen Preparation and Treatment ,Predatory Behavior ,RNA ,Gene expression ,Pest Control ,business ,Developmental Biology - Abstract
Phytoseiids are predatory mites that prey on other mites and small arthropods, and several species are used in commercial agriculture for biological control of pests. To optimize phytoseiid mites' use in biocontrol, an efficient method for oral delivery of test compounds is required to assess their sensitivities to pesticides, RNAi for gene functional analysis and artificial diets. Here we developed four methods for oral delivery of a solution of xenobiotics to different life stages of the commercially available generalist predatory mite Neoseiulus californicus: (i) soaking mites in the solution, or allowing them to feed on (ii) spider mites soaked in the solution, (iii) a solution droplet, or (iv) solution-saturated filter paper. As measured by ingestion of a tracer dye, the droplet-based feeding system was most efficient; the dye was observed in the alimentary canal of >90% test mites of all life stages, with no mortality. The droplet-based feeding system was also effective for the commercially available specialist predatory mite Phytoseiulus persimilis, with >80% delivery efficiency. This study paves the way for development of methods for high-throughput RNAi and for toxicological or nutritional assays in phytoseiid mites.
- Published
- 2019
5. Feeding design in free-living mesostigmatid chelicerae (Acari: Anactinotrichida)
- Author
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Clive E. Bowman
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0106 biological sciences ,Functional morphological form ,010607 zoology ,Zoology ,Rollplatte ,Biology ,01 natural sciences ,Predation ,Saprophagy ,Animals ,Body Size ,Heuristics ,Chela ,Durophagy ,Acari ,Arthropods ,Review Paper ,Ecology ,Feeding Behavior ,General Medicine ,Airoryhnchy versus klinorhynchy ,Arthropod mouthparts ,Stochastic prediction ,010602 entomology ,Biomechanical adaptation ,Animal ecology ,Predatory Behavior ,Insect Science ,Ambush predator ,Allometry ,Carnivore ecomorphology - Abstract
A model based upon mechanics is used in a re-analysis of historical acarine morphological work augmented by an extra seven zoophagous mesostigmatid species. This review shows that predatory mesostigmatids do have cheliceral designs with clear rational purposes. Almost invariably within an overall body size class, the switch in predatory style from a worm-like prey feeding (‘crushing/mashing’ kill) functional group to a micro-arthropod feeding (‘active prey cutting/slicing/slashing' kill) functional group is matched by: an increased cheliceral reach, a bigger chelal gape, a larger morphologically estimated chelal crunch force, and a drop in the adductive lever arm velocity ratio of the chela. Small size matters. Several uropodines (Eviphis ostrinus, the omnivore Trachytes aegrota, Urodiaspis tecta and, Uropoda orbicularis) have more elongate chelicerae (greater reach) than their chelal gape would suggest, even allowing for allometry across mesostigmatids. They may be: plesiosaur-like high-speed strikers of prey, scavenging carrion feeders (like long-necked vultures), probing/burrowing crevice feeders of cryptic nematodes, or small morsel/fragmentary food feeders. Some uropodoids have chelicerae and chelae which probably work like a construction-site mechanical excavator-digger with its small bucket. Possible hoeing/bulldozing, spore-cracking and tiny sabre-tooth cat-like striking actions are discussed for others. Subtle changes lead small mesostigmatids to be predator–scavengers (mesocarnivores) or to be predator–fungivores (hypocarnivores). Some uropodines (e.g., the worm-like prey feeder Alliphis siculus and, Uropoda orbicularis) show chelae similar in design to astigmatids and cryptostigmatids indicating possible facultative saprophagy. Scale matters—obligate predatory designs (hypercarnivory) start for mesostigmatids with chelal gape > 150 μm and cheliceral reach > 350 μm (i.e., about 500–650 μm in body size). Commonality of trophic design in these larger species with solifugids is indicated. Veigaia species with low chelal velocity ratio and other morphological strengthening specialisms, appear specially adapted in a concerted way for predating active soft and fast moving springtails (Collembola). Veigaia cerva shows a markedly bigger chelal gape than its cheliceral reach would proportionately infer suggesting it is a crocodile-like sit-and-wait or ambush predator par excellence. A small chelal gape, low cheliceral reach, moderate velocity ratio variant of the worm-like feeding habit design is supported for phytoseiid pollenophagy. Evidence for a resource partitioning model in the evolution of gnathosomal development is found. A comparison to crustacean claws and vertebrate mandibles is made. Alliphis siculus and Rhodacarus strenzkei are surprisingly powerful mega-cephalics for their small size. Parasitids show a canid-like trophic design. The chelicera of the nematophagous Alliphis halleri shows felid-like features. Glyphtholaspis confusa has hyaena-like cheliceral dentition. The latter species has a markedly smaller chelal gape than its cheliceral reach would suggest proportionately, which together with a high chelal velocity ratio and a high estimated chelal crunch force matches a power specialism of feeding on immobile tough fly eggs/pupae by crushing (durophagy). A consideration of gnathosomal orientation is made. Predatory specialisms appear to often match genera especially in larger mesostigmatids, which may scale quite differently. Comparison to holothyrids and opilioacarids indicates that the cheliceral chelae of the former are cutting-style and those of the latter are crushing-style. A simple validated easy-to-use ‘2:1 on’ predictive algorithm of feeding habit type is included based on a strength-speed tradeoff in chelal velocity ratio for ecologists to test in the field.
- Published
- 2021
6. Lost companions: a new quill mite species and its possible coextinction with the Carolina parakeet.
- Author
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Skoracki, Maciej, Unsöld, Markus, Patan, Milena, and Sikora, Bozena
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BUDGERIGAR ,SPECIES ,PARROTS ,MITES ,BIOLOGICAL extinction ,TWENTIETH century ,ACARIFORMES ,PARASITES - Abstract
Investigations of the parasites associated with extinct avian species provide unique insights into the ecology and evolution of both hosts and their parasitic counterparts. In the present paper, a new quill mite species, Peristerophila conuropsis sp. n., belonging to the family Syringophilidae (Prostigmata: Cheyletoidea) is described from the Carolina parakeet Conuropsis carolinensis Linnaeus (Psittaciformes: Psittacidae). This new species was collected from museum dry skin of the Carolina parakeet, the only native representative of the Psittacidae in the United States, which was an abundant resident of the southeastern and midwestern states and has been extinct in the beginning of the 20th century. Comment on the current taxonomic state and host associations of the genus Peristerophila are provided. Based on the host associations and habitats occupied by Peristerophila and related genera on parrots, it is hypothesized with the high probability that P. conuropsis has been extinct along with its host. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Size spectra of the edaphic fauna of typical Argiudol soils of the Rolling Pampa Region, Argentina.
- Author
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Velazco, Víctor N., Sandler, Rosana V., Sanabria, Maria Cynthia Valeria, Falco, Liliana B., Coviella, Carlos E., and Saravia, Leonardo A.
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SOIL animals ,SOIL mineralogy ,SOIL porosity ,HUMUS ,ARTHROPOD populations - Abstract
Background: Soil-dwelling organisms populate the spaces--referred to as interstices--between the litter on the soil surface and the pores in the soil's organo-mineral matrix. These organisms have pivotal roles in soil ecosystem functions, such as the breakdown and decomposition of organic matter, the dispersal of bacterial and fungal spores and biological habitat transformation. These functions, in turn, contribute to broader ecosystem services like carbon and nutrient cycling, soil organic matter regulation and both chemical and physical soil fertility. This study provides morphological data pertaining to a range of soil organism sizes, specifically in Argiudol soils subjected to varying levels of agricultural activity in the Rolling Pampas Region, one of the world's most extensive and fertile plains. The primary focus is on soil microarthropods--namely, Acari (mites) and Collembola (springtails)--with a body width of less than 2 mm. These organisms constitute the majority of life in the intricate soil pore network. Additionally, the study documents species of earthworms (Oligochaeta, Crassiclitelata), recognised as ecosystem engineers for their ability to create physical channels in the soil matrix and to distribute organic matter. Moreover, the study includes measurements of morphological traits of soil-dwelling "macrofauna" (organisms with a body width greater than 2 mm), which are also implicated in various soil ecosystem functions. These include population regulation by apex predators, organic matter decomposition, biogenic structure formation, nutrient mobilisation and herbivory. New information:In this paper, we report both the geographical locations and individual measurements of key morphological traits for over 7,000 specimens, covering a range of soil-dwelling organisms. These include springtails (Entognatha, Collembola), mites (Arachnida, Acari), earthworms (Oligochaeta, Crassiclitellata) and additional soil macrofauna. All specimens were collected from typical Argiudol soils located in three distinct agricultural systems characterised by varying levels of land-use intensity. To our knowledge, no other dataset exists providing this information for the Argentinian Pampas. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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8. A contribution to the knowledge of Coccalicus clavatus Willmann, 1952 (Trombidiformes, Iolinidae) new to Asian fauna.
- Author
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Darbemamieh, Maryam and Saboori, Alireza
- Subjects
ACARIFORMES ,SPECIES distribution ,SPECIES diversity ,HABITATS - Abstract
The iolinid mite Coccalicus clavatus Willmann, 1952 was collected during a survey from the soil of Gilanegharb, Kermanshah, Iran in 2022. This species was first described in the family Alycidae by Willmann in 1952 and then André and Uusitalo transferred it to the family Iolinidae in 2006, accompanied by transferring species from the genus Paratydaeolus to the genus Coccalicus. Some challenges about species characters of this mite are discussed in this paper and the synonymy of C. lukoschusi and C. clavatus is proposed. The genus consists of 12 species with clavate trichobothria, and is related to various habitats like soil, stored products, under barks, on leaves of different plants, and on birds. They have been reported from Europe, Antarctica and North America and this is the first record of the Coccalicus mites from Asia. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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9. A comprehensive survey of Rhinonyssid mites (Mesostigmata: Rhinonyssidae) in Northwest Russia: New mite-host associations and prevalence data
- Author
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Manuel de Rojas, Jorge Doña, Ivan Dimov, and Universidad de Sevilla. Departamento de Microbiología y Parasitología
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0106 biological sciences ,Arthropoda ,Biodiversity & Conservation ,Zoology ,Biology ,parasites ,010603 evolutionary biology ,01 natural sciences ,immune system diseases ,Systematics ,Rhinonyssidae ,parasitic diseases ,Arachnida ,Ecology & Environmental sciences ,Mite ,Animalia ,Chelicerata ,symbio ,Acari ,lcsh:QH301-705.5 ,Invertebrata ,Ecology, Evolution, Behavior and Systematics ,symbionts ,Ecology ,integumentary system ,Host (biology) ,biology.organism_classification ,Data Paper (Biosciences) ,Checklist ,respiratory tract diseases ,010602 entomology ,Biogeography ,lcsh:Biology (General) ,birds ,Mesostigmata ,Parasitology ,ectoparasites ,checklist - Abstract
Background: Rhinonyssid mites are permanent parasites of birds that inhabit their respiratory tract. There are around 600 species described worldwide and almost all species of birds are found to have embedded rhinonyssid mites. Despite their presumed relevance, these mites are largely unstudied due to the difficulty in sampling them and, therefore, the majority of mite-host associations and species-prevalence data are unknown. New information: In this study, 179 mite specimens belonging to 27 species and eight genera were identified. Notably, 18 new mite-bird associations were documented for the first time, thus increasing the known host range for these mite species. In addition, mite-host associations found in this study were compared with known associations from these species of birds in the European part of Russia and in Europe. Overall, this study represents the largest survey to date carried out on rhinonyssid mites in Russia and one of the most comprehensive datasets on rhinonyssid host-range
- Published
- 2020
10. Morphological and molecular identification of ixodid tick species (Acari: Ixodidae) infesting cattle in Uganda
- Author
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Johnson Bbira, Lawrence Mugisha, Lidia Chitimia-Dobler, Teddy Nakayiki, Maja Malmberg, Deon K. Bakkes, Stephen Balinandi, Giulio Grandi, Julius J. Lutwama, and William Kabasa
- Subjects
Morphology ,Ixodidae ,Arthropods and Medical Entomology - Original Paper ,Rhipicephalus sanguineus ,030231 tropical medicine ,Zoology ,Cattle Diseases ,Tick ,16S sequencing ,03 medical and health sciences ,0302 clinical medicine ,Animals ,Acari ,Uganda ,030304 developmental biology ,Species distribution ,0303 health sciences ,General Veterinary ,biology ,Ixodid ticks ,Amblyomma ,General Medicine ,Biodiversity ,biology.organism_classification ,Tick Infestations ,Rhipicephalus ,Infectious Diseases ,Insect Science ,Rhipicephalus microplus ,Parasitology ,Cattle ,Amblyomma variegatum - Abstract
In Uganda, the role of ticks in zoonotic disease transmission is not well described, partly, due to limited available information on tick diversity. This study aimed to identify the tick species that infest cattle. Between September and November 2017, ticks (n = 4362) were collected from 5 districts across Uganda (Kasese, Hoima, Gulu, Soroti, and Moroto) and identified morphologically at Uganda Virus Research Institute. Morphological and genetic validation was performed in Germany on representative identified specimens and on all unidentified ticks. Ticks were belonging to 15 species: 8 Rhipicephalus species (Rhipicephalus appendiculatus, Rhipicephalus evertsi evertsi, Rhipicephalus microplus, Rhipicephalus decoloratus, Rhipicephalus afranicus, Rhipicephalus pulchellus, Rhipicephalus simus, and Rhipicephalus sanguineus tropical lineage); 5 Amblyomma species (Amblyomma lepidum, Amblyomma variegatum, Amblyomma cohaerens, Amblyomma gemma, and Amblyomma paulopunctatum); and 2 Hyalomma species (Hyalomma rufipes and Hyalomma truncatum). The most common species were R. appendiculatus (51.8%), A. lepidum (21.0%), A. variegatum (14.3%), R. evertsi evertsi (8.2%), and R. decoloratus (2.4%). R. afranicus is a new species recently described in South Africa and we report its presence in Uganda for the first time. The sequences of R. afranicus were 2.4% divergent from those obtained in Southern Africa. We confirm the presence of the invasive R. microplus in two districts (Soroti and Gulu). Species diversity was highest in Moroto district (p = 0.004) and geographical predominance by specific ticks was observed (p = 0.001). The study expands the knowledge on tick fauna in Uganda and demonstrates that multiple tick species with potential to transmit several tick-borne diseases including zoonotic pathogens are infesting cattle.
- Published
- 2020
11. Lizards, ticks and contributions to Australian parasitology: C. Michael Bull (1947–2016)
- Author
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Michael G. Gardner and Stephanie S. Godfrey
- Subjects
0106 biological sciences ,0301 basic medicine ,Skink ,Ecology (disciplines) ,Zoology ,Tick ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,Amblyomma limbatum ,biology.animal ,lcsh:Zoology ,Regular Paper ,Disease ecology ,Herpetology ,lcsh:QL1-991 ,Acari ,biology ,Lizard ,Ecology ,030108 mycology & parasitology ,biology.organism_classification ,Field-based research ,Infectious Diseases ,Parasitology ,Wildlife parasitology ,Animal Science and Zoology ,Conservation biology ,Long-term research - Abstract
Professor C. Michael Bull was a great scientist and mentor, and an Associate Editor of this journal. While his research career spanned the fields of behavioural ecology, conservation biology and herpetology, in this article, we pay tribute to his major contribution to Australian parasitology. Mike authored more than eighty articles on host-parasite ecology, and revealed major insights into the biology and ecology of ticks from his long term study of the parapatric boundary of two tick species (Amblyomma limbatum and Bothriocroton hydrosauri) on the sleepy lizard (Tiliqua rugosa). In this article, we provide an overview of how this research journey developed to become one of the longest-running studies of lizards and their ticks, totalling 35 years of continuous surveys of ticks on lizards, and the insights and knowledge that he generated along that journey., Graphical abstract Image 1, Highlights • Mike Bull was an ecologist who made a major contribution to wildlife parasitology. • He began this journey studying the parapatric boundary between two ticks on a lizard. • Developed into one of the longest running studies of ticks on lizards, lasting 35 years. • Provided new insights into how host behaviour can influence parasite transmission.
- Published
- 2017
12. Checklist of terrestrial Parasitengona mites in Fennoscandia with new species- and distribution records (Acariformes: Prostigmata)
- Author
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Joanna Mąkol, Pekka T. Lehtinen, Jeanette Stålstedt, Joanna Łaydanowicz, and Johannes Bergsten
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0106 biological sciences ,Biologisk systematik ,Fauna ,Biodiversity ,Distribution (economics) ,Northern Europe ,Biological Systematics ,Distribution ,Acariformes ,01 natural sciences ,Thelyphonida ,Bilateria ,lcsh:QH301-705.5 ,Acari ,Invertebrata ,Finland ,Ecology ,biology ,Norway ,Prostigmata ,Cephalornis ,Checklist ,Europe ,Geography ,GBIF ,Habitat ,Chasmataspidida ,Scandinavia ,velvet mites ,chiggers ,Coelenterata ,Arthropoda ,Parasitengona ,010607 zoology ,Nephrozoa ,Protostomia ,Trombidiformes ,Norway incl. Finnmark ,010603 evolutionary biology ,Circumscriptional names of the taxon under ,Heteronychus ,Systematics ,Arachnida ,faunistics ,Animalia ,Chelicerata ,Ecology, Evolution, Behavior and Systematics ,Sweden ,business.industry ,metadata ,biology.organism_classification ,lcsh:Biology (General) ,Notchia ,Ecdysozoa ,Taxonomic Paper ,Catalogues and Checklists ,business - Abstract
The knowledge of terrestrial Parasitengona in Fennoscandia lies far behind that of their aquatic counterparts, the water mites (Hydrachnidia). Based on new inventories, we provide primary data and an annotated checklist of terrestrial Parasitengona in Fennoscandia including 107 species. Out of these, nineteen species are new findings for the region and five are species potentially new for science. Twenty-three species are new for Norway, fourteen for Finland and eleven for Sweden. The known recorded fauna today of terrestrial Parasitengona is 80 species for Norway, 54 for Sweden and 48 for Finland. Primary data include georeferenced locality data as well as collecting techniques and microhabitat to increase the knowledge on species' habitat requirements.
- Published
- 2019
13. Infestation and distribution of chiggers on the Anderson's white‐bellied rats in southwest China.
- Author
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Guo, Yu, Guo, Xian‐Guo, Peng, Pei‐Ying, Lv, Yan, Xiang, Rong, Song, Wen‐Yu, and Huang, Xiao‐Bin
- Subjects
TSUTSUGAMUSHI disease ,MITES ,RATS ,MURIDAE ,FIELD research ,RODENTS - Abstract
As a group of ectoparasites, chiggers (larvae of chigger mites) are the exclusive vector of scrub typhus (tsutsugamushi disease). Rodents are the most important hosts of chiggers. The Anderson's niviventer rat, Niviventer andersoni, is an endemic species of rodent in China. However, few studies have involved this endemic rodent species and its ectoparasites including chiggers. According to the field investigation in five provincial regions of southwest China between 2001 and 2019, this paper retrospectively analysed the infestation and distribution of chiggers on the body surface of N. andersoni in southwest China for the first time. From 77 Anderson's niviventer rats captured, a total of 527 chiggers were collected and they were identified as 39 species and nine genera in two subfamilies of family Trombiculidae. Of 39 chigger species identified, Leptotrombidium deliense and L. scutellare are the most important vectors of scrub typhus in China. The overall infestation indexes were PM = 29.87%, MA = 6.84 and MI = 22.91, and the indexes of chigger mite community were Mf = 39, H' = 2.60, E = 0.71 and D = 0.12. The dominant chigger species are L. wenense, L. xiaguanense and L. fujianense with a total Cr = 51.04%, among which L. wenense is one of the six main vectors of scrub typhus in China. The dominant chigger species are of aggregated distribution among different individuals of the rats. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
14. Subfamily Coleoscirinae (Acari: Trombidiformes: Cunaxidae), with Description of One New Species from Pakistan
- Author
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Muhammad Hamid Bashir, Sabyan Faris Honey, Muhammad Ashfaq, Muhammad Kamran, Muhammad Afzal, and Shaukat Ali
- Subjects
Mites ,Subfamily ,Prostigmata ,Zoology ,General Medicine ,Biology ,biology.organism_classification ,Neoscirulini ,Genus ,Insect Science ,Papers ,Animals ,Key (lock) ,Female ,Pakistan ,Trombidiformes ,Acari - Abstract
The Coleoscirinae (Acari: Trombidiformes: Cunaxidae) from Pakistan are summarized in this paper. Two species of Scutascirus Den Heyer ( S. pirgus Chaudhri and Akbar and S . tactus Chaudhri and Akbar), ten species of Coleoscirus Berlese ( C. baptos (Chaudhri and Akbar), C. carex (Inayatullah and Shahid), C. carnus Muhammad and Chaudhri, C. comis Muhammad and Chaudhri, C. disparis Muhammad and Chaudhri, C . irroratus Muhammad and Chaudhri, C. mardi (Inatullah and Shahid), C. raviensis Afzal, Ashfaq and Khan, C . tobaensis Bashir, Afzal, Ashfaq, and Khan, and C . trudus Bashir, Afzal and Akbar), and three species of Pseudobonzia Smiley ( P. ashfaqi Bashir, Afzal and Akbar, P. numida Chaudhri and Akbar, and P . parilus Chaudhri) have been previously reported. One new species of Pseudobonzia , Pseudobonzia bakerisp. n. , is herein described and illustrated. A key to the genera of the subfamily and keys to the species in each genus are given to incorporate the new species from Pakistan. Distribution records of all known species in Pakistan are also given.
- Published
- 2014
15. Evaluation of activity of the crude ethanolic extract of Magonia pubescens St. Hil (Sapindaceae) against larvae of the cattle tick Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae)
- Author
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Fernando de Freitas Fernandes, Edméia de Paula e Souza Freitas, and Priscilla Antunes Diógenes Bessa
- Subjects
Botanical acaricide ,Veterinary medicine ,Larva ,Multidisciplinary ,Filter paper ,biology ,Magonia pubescens ,cattle tick ,lcsh:Biotechnology ,fungi ,Tick ,Sapindaceae ,biology.organism_classification ,Rhipicephalus ,Distilled water ,Boophilus microplus ,lcsh:TP248.13-248.65 ,parasitic diseases ,Botany ,Acari ,tinguí-do-cerrado ,Ixodidae - Abstract
The acaricidal potential of the crude ethanolic extract (c.e.e.) of the stem peel of Magonia pubescens was evaluated against larvae of Rhipicephalus (Boophilus) microplus. The larvae were placed in filter paper envelopes impregnated with different concentrations of c.e.e., dissolved in dimethylsulfoxide (DMSO) and distilled water for determination of lethal concentrations (LC). The following treatments were used: 1. Envelopes of dry filter paper; 2. Envelopes of filter paper moistened with distilled water; 3. Envelopes of filter paper moistened with a solution of DMSO in distilled water; and 4. Envelopes moistened with 2 mL of each concentration of the c.e.e. to be tested. The bioassays were carried out in quadruplicate at 27°±1° C and RH e"80% and 12h light. Mortality was observed after 48 h, LC50 and LC99 values of 365 and 4,000 ppm being obtained. There was no significant mortality in larvae exposed to the first three treatments (p < 0.05).Este trabalho objetivou avaliar o potencial acaricida do extrato-bruto etanólico (e.b.e.) da casca do caule de Magonia pubescens sobre larvas do carrapato bovino Rhipicephalus (Boophilus) microplus. As larvas foram acondicionadas em B.O.D. climatizada, em envelopes de papel filtro impregnados com diferentes concentrações do e.b.e., solubilizado com dimetilsulfóxido (DMSO) e água destilada, para determinação das Concentrações Letais (CL). Foram realizados os seguintes tratamentos: 1. envelopes de papel filtro seco; 2. envelopes de papel filtro umedecidos com água destilada; 3. envelopes de papel filtro umedecidos com solução de DMSO e água destilada; e 4. envelopes umedecidos com 2 mL de cada concentração do e.b.e. testada. Os bioensaios foram feitos em quadruplicata, em uma câmara climatizada a 27°±1° C, URe"80% e fotofase natural de 12 horas. A mortalidade foi observada após 48h. Obtiveram-se as CL50 de 365 e CL99 de 4.000 ppm. Não houve mortalidade significativa para os três primeiros tratamentos (p
- Published
- 2008
16. Multidisciplinary analysis of Knemidocoptes jamaicensis parasitising the Common Chaffinch, Fringilla coelebs: proofs for a multispecies complex?
- Author
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Attila D. Sándor, Adrian Florin Gal, Viorel Miclaus, Andrei Daniel Mihalca, Jacek Dabert, and Miroslawa Dabert
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Entomology ,Biometry ,Molecular Sequence Data ,Zoology ,Ectoparasitic Infestations ,DNA barcoding ,Host Specificity ,Electron Transport Complex IV ,RNA, Ribosomal, 28S ,RNA, Ribosomal, 18S ,Mite ,Animals ,DNA Barcoding, Taxonomic ,Acari ,Passeriformes ,Fringilla ,Original Paper ,General Veterinary ,biology ,Bird Diseases ,Romania ,Seta ,Sequence Analysis, DNA ,General Medicine ,biology.organism_classification ,Phylogeography ,Infectious Diseases ,Insect Science ,Parasitology ,Taxonomy (biology) - Abstract
The number of studies discussing the pathology and host specificity in Knemidocoptinae is very limited. In Knemidocoptes jamaicensis, the host specificity seems to be very broad, and there is a clear morphological variability in individuals originating from various bird species; hence, serious doubts appear about the species status of this mite. We report a multidisciplinary approach to the taxonomy, morphology, ecology, and pathology of K. jamaicensis. The source of the mites in our study was a second year aged female of the Common Chaffinch, Fringilla coelebs, which accidentally died in the mist net during a field study in Dumbrava, Cluj County, Romania in March 2011. Comparisons of the biometrical data regarding the body dimensions, length of certain setae, and distances between bases of dorsal setae with other published data showed a great variability of certain measurements between populations infecting various hosts and localities and sometimes even within single populations. Gross and histologic lesions consisted in severe bilateral orthokeratotic hyperkeratosis and epidermal spongiosis. Lesions also involved the skin of the joints. Skin inflammation was absent, and no lesions were noticed in the metatarsus bone. Following molecular analysis, the 518-base-long sequence differed from the published 18S rDNA in nine positions. Additionally, our paper reports for the first time the DNA barcode sequences of K. jamaicensis and, together with the synoptic analysis of host spectrum, geographical distribution and morphological variability it brings important evidences to sustain the hypothesis of multispecies complex for K. jamaicensis.
- Published
- 2013
17. Cryptic speciation in the Acari: a function of species lifestyles or our ability to separate species?
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Brian G. Rector, Sara Magalhães, Anna Skoracka, and Lechosław Kuczyński
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Review Paper ,Entomology ,Experimental evolution ,Species complex ,Ecology ,biology ,Genetic Speciation ,Biodiversity ,General Medicine ,biology.organism_classification ,Hidden diversity ,Animal ecology ,Integrative approach ,Insect Science ,Cryptic species ,Molecular phylogenetics ,Animals ,Mites and ticks ,Acari ,Molecular systematics ,Taxonomy - Abstract
There are approximately 55,000 described Acari species, accounting for almost half of all known Arachnida species, but total estimated Acari diversity is reckoned to be far greater. One important source of currently hidden Acari diversity is cryptic speciation, which poses challenges to taxonomists documenting biodiversity assessment as well as to researchers in medicine and agriculture. In this review, we revisit the subject of biodiversity in the Acari and investigate what is currently known about cryptic species within this group. Based on a thorough literature search, we show that the probability of occurrence of cryptic species is mainly related to the number of attempts made to detect them. The use of, both, DNA tools and bioassays significantly increased the probability of cryptic species detection. We did not confirm the generally-accepted idea that species lifestyle (i.e. free-living vs. symbiotic) affects the number of cryptic species. To increase detection of cryptic lineages and to understand the processes leading to cryptic speciation in Acari, integrative approaches including multivariate morphometrics, molecular tools, crossing, ecological assays, intensive sampling, and experimental evolution are recommended. We conclude that there is a demonstrable need for future investigations focusing on potentially hidden mite and tick species and addressing evolutionary mechanisms behind cryptic speciation within Acari.
- Published
- 2015
18. Colony size, but not density, affects survival and mating success of alternative male reproductive tactics in a polyphenic mite, Rhizoglyphus echinopus
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Mateusz Twardawa, Aleksandra Łukasiewicz, and Jacek Radwan
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population size ,Astigmata ,Zoology ,Conditional strategy ,Biology ,Population density ,polyphenism ,Polyphenism ,Alternative reproductive tactics ,Acari ,Mating ,population density ,astigmata ,reproductive and urinary physiology ,Ecology, Evolution, Behavior and Systematics ,Original Paper ,Ecology ,Population size ,biology.organism_classification ,conditional strategy ,Animal ecology ,Sex pheromone ,Animal Science and Zoology ,alternative reproductive tactics ,Scramble competition ,acari - Abstract
Among acarid mites, a number of species are characterised by the presence of discontinuous morphologies (armed heteromorphs vs. unarmed homeomorphs) associated with alternative mating tactics (fighting vs. scramble competition). In Rhizoglyphus echinopus, expression of the fighter morph is suppressed, via pheromones, in large, dense colonies. If this mechanism is adaptive, fighters should have relatively lower fitness in large and/or dense colonies, due to costs incurred from fighting, which is often fatal. In order to test these predictions, we quantified the survival and mating success of fighters and scramblers in colonies of equal sex and morph ratios; these colonies either differed in size (4, 8, or 32 individuals) but not density or differed in density but not size (all consisted of 8 individuals). We found that the relative survival and mating success of fighters was inversely related to colony size, but we did not find a significant effect of colony density. The higher mating success of fighters in small colonies was due to the fact that, after killing rival males, these fighters were able to monopolise females. This situation was not found in larger colonies, in which there was a larger number of competitors and fighters suffered relatively higher mortality. These results indicate that morph determination, guided by social cues, allows for the adaptive adjustment of mating tactics to existing demographic conditions. Electronic supplementary material The online version of this article (doi:10.1007/s00265-014-1787-7) contains supplementary material, which is available to authorized users.
- Published
- 2014
19. First Canadian record of the water mite Thermacarus nevadensis Marshall, 1928 (Arachnida: Acariformes: Hydrachnidiae: Thermacaridae) from hot springs in British Columbia
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Cory S. Sheffield and Jennifer Heron
- Subjects
0106 biological sciences ,Canada ,Biodiversity & Conservation ,010607 zoology ,Acariformes ,010603 evolutionary biology ,01 natural sciences ,DNA barcoding ,Mite ,DNA barcode ,Animalia ,Acari ,Ecology, Evolution, Behavior and Systematics ,Hot spring ,Hot springs ,Ecology ,biology ,British Columbia ,Cenozoic ,Thermacaridae ,biology.organism_classification ,Thermacarus nevadensis ,Habitat ,Taxonomic Paper ,Americas - Abstract
Background Thermacarus nevadensis Marshall, 1928 is an uncommonly collected mite associated with hot spring environments in the western United States. Information on its distribution and ecology are incomplete. New information In this paper, we report Thermacarus nevadensis from northern British Columbia. These records represent the first of Thermacaridae from Canada, the most northern records of this species in North America, and the most northern records for the family globally. We also provide short notes and images of the habitats in which specimens have been collected in Canada.
- Published
- 2016
20. A geographic distribution database of Mononychellus mites (Acari, Tetranychidae) on cassava (Manihot esculenta)
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Soroush Parsa and Aymer Andrés Vásquez-Ordóñez
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Tropical agriculture ,biology ,Range (biology) ,Manihot esculenta ,CIAT’s Arthropod Reference Collection (CIATARC) ,Tropics ,biology.organism_classification ,International Center for Tropical Agriculture (CIAT) ,Crop ,Cassava Green Mite Complex ,Genus ,Botany ,lcsh:Zoology ,Cassava Green Mite ,Animal Science and Zoology ,Acari ,lcsh:QL1-991 ,CIAT's Arthropod Reference Collection (CIATARC) ,Ecology, Evolution, Behavior and Systematics ,Global biodiversity ,Data Paper - Abstract
The genus Mononychellus is represented by 28 herbivorous mites. Some of them are notorious pests of cassava (Manihot esculenta Crantz), a primary food crop in the tropics. With the exception of Mononychellus tanajoa (Bondar), their geographic distribution is not widely known. This article therefore reports observational and specimen-based occurrence data of Mononychellus species associated with cassava. The dataset consists of 1,513 distribution records documented by the International Center for Tropical Agriculture (CIAT) between 1975 and 2012. The specimens are held at CIAT’s Arthropod Reference Collection (CIATARC). Most of the records are from the genus’ native range in South America and were documented between 1980 and 2000. Approximately 61% of the records belong to M. tanajoa, 25% to M. caribbeanae (McGregor), 10% to M. mcgregori (Flechtmann and Baker) and 2% to M. planki (McGregor). The complete dataset is available in Darwin Core Archive format via the Global Biodiversity Information Facility (GBIF).
- Published
- 2014
21. Is parasite load dependent on host aggregation size? The case of the greater mouse-eared bat Myotis myotis (Mammalia: Chiroptera) and its parasitic mite Spinturnix myoti (Acari: Gamasida)
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Agnieszka Szubert-Kruszyńska and Tomasz Postawa
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Spinturnicidae ,Male ,Zoology ,Myotis myotis ,medicine.disease_cause ,Parasite load ,Parasite Load ,Host-Parasite Interactions ,Maternity aggregation ,Sex Factors ,Colony size ,Chiroptera ,Infestation ,Mite ,medicine ,Animals ,Parasite hosting ,Acari ,Parasite infection ,Ecosystem ,Population Density ,Original Paper ,Mites ,General Veterinary ,biology ,Ecology ,Host (biology) ,Age Factors ,General Medicine ,biology.organism_classification ,Mouse-eared bats ,Infectious Diseases ,Insect Science ,Female ,Parasitology ,Poland - Abstract
The risk of parasite infection grows with the size of host aggregations, which, in turn, may also depend on host sex and age and the quality of environmental resources. Herein, we studied the relationship between ectoparasitic infections with the wing mite (Spinturnix myoti) and the size of the breeding colonies, sex, age, and body condition index (BCI) of its host, the greater mouse-eared bat (Myotis myotis). The influence of environmental quality in the Carpathian Mountains (Poland) was also examined. We found significant differences in mite abundance and BCI between different breeding aggregations of the greater mouse-eared bat and also between the host sex/age categories. The most heavily infected bats were adult M. myotis females, while young males appeared to be the least infected. The BCI differed significantly between the sexes in young bats (males had a higher BCI than females) and also between colonies. No significant differences in the BCI were found for adult females. We did not find any relationship between the infestation rate of M. myotis, their colony size, the quality of environmental resources (percentage of forest cover around the colony), or the BCI. The prevalence of the various developmental stages of the mites did not differ between the host sex/age categories; however, differences were found in the sex ratios of deutonymphs and adult mites between adult M. myotis females. We predict that parasite load may not be dependent on colony size itself, but mainly on microclimatic factors, which are in turn directly correlated with colony size.
- Published
- 2014
22. First Records of Picobiine Mites Associated with Birds-of-Paradise: Can Interspecific Sexual Behaviour of Hosts Play a Role in the Distribution of Quill Mite Parasites? †.
- Author
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Sikora, Bozena, Unsoeld, Markus, Melzer, Roland R., Friedrich, Stefan, and Skoracki, Maciej
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HUMAN sexuality ,PARASITES ,BIRD behavior ,ZOOLOGY ,PASSERIFORMES ,MITES ,ACARIFORMES - Abstract
Simple Summary: We report on the occurrence of parasitic quill mites of the family Syringophilidae on the well-known avian group birds-of-paradise. Our investigation resulted in the discovery of two new species of mites belonging to the subfamily Picobiinae, which has never before been recorded on birds-of-paradise. We hypothesise that the interspecific sexual behaviour of paradisaeids, which involves copulation with non-closely related host species, may have facilitated the spread of syringophilid mites between different and unrelated host species. These findings highlight the potential role of sexual behaviour in the distribution and transmission of parasitic quill mites among avian hosts. While birds-of-paradise (Passeriformes: Paradisaeidae) are a well-known group of birds, our understanding of their parasites is still limited. This study reports on parasitic quill mites of the subfamily Picobiinae (Acariformes: Syringophilidae), which have never before been recorded on this group of birds. The mite specimens presented in this paper were collected from birds-of-paradise that had been captured in Papua New Guinea and Indonesia in the years 1910–1911 and are now deposited in the Bavarian State Collection of Zoology, Munich, Germany. Two syringophilid species are described as new to science: (i) Picobia frankei sp. n. from the magnificent riflebird Lophorina magnifica, the glossy-mantled manucode Manucodia ater, and the crinkle-collared manucode Manucodia chalybatus, and (ii) Gunabopicobia garylarsoni sp. n. from the twelve-wired bird-of-paradise Seleucidis melanoleucus and the lesser bird-of-paradise Paradisaea minor. We hypothesise that the presence of both picobiine species on phylogenetically unrelated paradisaeids may be caused by the sexual behaviour of these birds, where interspecific copulations may play a role in the switching of parasites between non-closely related host species. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
23. A NEW SPECIES OF TRIGONUROPODA (MESOSTIGMATA: UROPODINA) FROM VIETNAM.
- Author
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GWIAZDOWICZ, DARIUSZ J., BABAEIAN, ESMAEIL, and ERMILOV, SERGEY G.
- Subjects
PARASITIFORMES ,SPECIES ,RECORD collecting ,NATIONAL parks & reserves ,RAIN forests - Abstract
A new species Trigonuropoda (Latipilitrigon) foliata sp. n. was recorded in material collected from soil and leaf-litter in Bidoup Nui Ba National Park in Vietnam. This paper presents an illustrated description of the female and male of this species along with comparisons with closely related species. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. To attach or not to attach? The effect of carrier surface morphology and topography on attachment of phoretic deutonymphs of Uropoda orbicularis (Acari)
- Author
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Zbigniew Adamski, Stefan Jurga, M. Wiesner, Katarzyna Tandecka, Daria Bajerlein, and Wojciech Kacalak
- Subjects
0106 biological sciences ,Morphology (linguistics) ,Aphodius prodromus ,Uropoda orbicularis ,010603 evolutionary biology ,01 natural sciences ,Attachment devices ,Pygidium ,Surface roughness ,Pedicel ,Animals ,Profilometry ,Acari ,Ecology, Evolution, Behavior and Systematics ,Original Paper ,Mites ,biology ,Seta ,General Medicine ,Anatomy ,biology.organism_classification ,Coleoptera ,010602 entomology ,Hydrophobic surfaces ,SEM ,Aphodius - Abstract
Previous studies on preferences of phoretic deutonymphs of Uropodina for attachment sites have shown that they frequently select smooth and hydrophobic surfaces. The aim of our study was to provide the detailed morphological and topographical characteristics of beetle body surfaces to which deutonymphs frequently attach and to verify how the presence of setae and surface sculpture affects deutonymph attachment. The study was conducted on Uropoda orbicularis (Müller, 1776) and its common beetle carriers: Aphodius prodromus (Brahm, 1790), Aphodius fimetarius (Linnaeus, 1758), Onthophagus nuchicornis (Linnaeus, 1758) and Margarinotus carbonarius (Hoffmann, 1803). Morphology and topography of elytra, femora, propygidia and pygidia of beetles were analysed mainly using SEM methods supported with CLSM and AFM techniques. The hypothesis that deutonymphs may attach to surfaces covered with setae, if seta density is low enough not to disturb mite movement, was tested. The study revealed that deutonymphs attach to surfaces of various types as follows: (i) smooth, (ii) hairy, i.e., covered with setae, (iii) flat and (iv) sculptured. Smooth body parts and body parts covered with setae of low density were most frequently and intensively occupied with deutonymphs. Surfaces of high seta density were avoided by mites. Within elytra of Aphodius beetles, deutonymphs definitely preferred flat surfaces of elytral intervals. On the contrary, densely punctuated propygidium and pygidium in M. carbonarius were heavily infested with deutonymphs. We conclude that carrier surface morphology and topography are important for Uropodina deutonymph attachment, but these two factors cannot fully explain the observed relation.
- Published
- 2016
25. World Checklist of Opiliones species (Arachnida). Part 2: Laniatores – Samooidea, Zalmoxoidea and Grassatores incertae sedis
- Author
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Daniele R. Souza, Adriano B. Kury, and Abel Pérez-González
- Subjects
Neotropics ,Arthropoda ,Otras Ciencias Biológicas ,Zoology ,NEOTROPICS ,Opiliones ,Subspecies ,purl.org/becyt/ford/1 [https] ,Ciencias Biológicas ,AFROTROPICS ,Systematics ,Arachnida ,Animalia ,Acari ,Chelicerata ,Samooidea ,purl.org/becyt/ford/1.6 [https] ,Invertebrata ,Ecology, Evolution, Behavior and Systematics ,Laniatores ,Ecology ,biology ,Cenozoic ,World ,Indo-Malaya ,INDO-MALAYA ,biology.organism_classification ,Incertae sedis ,Checklist ,Grassatores ,Neogene ,Catalogues and Checklists ,Afrotropics ,CIENCIAS NATURALES Y EXACTAS ,Data Paper - Abstract
Including more than 6500 species, Opiliones is the third most diverse order of Arachnida, after the megadiverse Acari and Araneae. This database is part 2 of 12 of a project containing an intended worldwide checklist of species and subspecies of Opiliones, and it includes the members of the suborder Laniatores, infraorder Grassatores of the superfamilies Samooidea and Zalmoxoidea plus the genera currently not allocated to any family (i.e. Grassatores incertae sedis). In this Part 2, a total of 556 species and subspecies are listed. Fil: Kury, Adriano Brilhante. Universidade Federal Do Rio de Janeiro. Museu Nacional; Brasil Fil: Souza, Daniele R.. Universidade Federal Do Rio de Janeiro. Museu Nacional; Brasil Fil: Pérez González, Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; Argentina
- Published
- 2015
26. Acaricidal and oviposition deterring effects of santalol identified in sandalwood oil against two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae)
- Author
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Chung Gyoo Park, Eu Gene Lim, Jinwoo Kim, and Hyun Sik Roh
- Subjects
Sandalwood oil ,Sandalwood ,Original Paper ,biology ,Tetranychus urticae ,biology.organism_classification ,Essential oil ,law.invention ,Common thyme ,Toxicology ,Santalol ,Natural acaricide ,Spider mite ,law ,parasitic diseases ,Shoot ,Botany ,medicine ,Phytotoxicity ,Acari ,Agronomy and Crop Science ,medicine.drug - Abstract
Thirty-four plant essential oils were screened for their acaricidal and oviposition deterrent activities against two-spotted spider mite (TSSM), Tetranychus urticae Koch (Acari: Tetranychidae), in the laboratory using a leaf-dip bioassay. From initial trials, sandalwood and common thyme oils were observed to be the most effective against TSSM adult females. Subsequent trials confirmed that only sandalwood oil was significantly active (87.2 ± 2.9% mortality) against TSSM adult females. Sandalwood oil also demonstrated oviposition deterring effects based on a 89.3% reduction of the total number of eggs on leaf disks treated with the oil. GC-MS analysis revealed that the main components of the sandalwood oil were α-santalol (45.8%), β-santalol (20.6%), β-sinensal (9.4%), and epi-β-santalol (3.3%). A mixture of α- and β-santalol (51.0:22.9, respectively) produced significantly higher mortality (85.5 ± 2.9%) and oviposition deterrent effects (94.7% reduction in the number of eggs) than the control. Phytotoxicity was not shown on rose shoots to which a 0.1% solution of sandalwood oil was applied.
- Published
- 2011
27. Factors affecting patterns of tick parasitism on forest rodents in tick-borne encephalitis risk areas, Germany
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Peter Hagedorn, Ferdinand Rühe, Matthias Niedrig, Torsten Vor, and Christian Kiffner
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Male ,030231 tropical medicine ,Parasitism ,Animals, Wild ,Tick ,Encephalitis Viruses, Tick-Borne ,030308 mycology & parasitology ,Rodent Diseases ,03 medical and health sciences ,0302 clinical medicine ,Germany ,biology.animal ,parasitic diseases ,Animals ,Acari ,Dermacentor ,Original Paper ,0303 health sciences ,Ixodes ,General Veterinary ,biology ,Ecology ,Biomedicine ,Immunology ,Microbiology ,Medical Microbiology ,Deer ,Arthropod Vectors ,General Medicine ,15. Life on land ,biology.organism_classification ,Tick Infestations ,Bank vole ,Roe deer ,Infectious Diseases ,Larva ,Insect Science ,Epidemiological Monitoring ,Host-Pathogen Interactions ,Apodemus ,Female ,Parasitology ,Murinae ,Encephalitis, Tick-Borne ,Environmental Monitoring - Abstract
Identifying factors affecting individual vector burdens is essential for understanding infectious disease systems. Drawing upon data of a rodent monitoring programme conducted in nine different forest patches in southern Hesse, Germany, we developed models which predict tick (Ixodes spp. and Dermacentor spp.) burdens on two rodent species Apodemus flavicollis and Myodes glareolus. Models for the two rodent species were broadly similar but differed in some aspects. Patterns of Ixodes spp. burdens were influenced by extrinsic factors such as season, unexplained spatial variation (both species), relative humidity and vegetation cover (A. flavicollis). We found support for the ‘body mass’ (tick burdens increase with body mass/age) and for the ‘dilution’ hypothesis (tick burdens decline with increasing rodent densities) and little support for the ‘sex-bias’ hypothesis (both species). Surprisingly, roe deer densities were not correlated with larvae counts on rodents. Factors influencing the mean burden did not significantly explain the observed dispersion of tick counts. Co-feeding aggregations, which are essential for tick-borne disease transmission, were mainly found in A. flavicollis of high body mass trapped in areas with fast increase in spring temperatures. Locally, Dermacentor spp. appears to be an important parasite on A. flavicollis and M. glareolus. Dermacentor spp. was rather confined to areas with higher average temperatures during the vegetation period. Nymphs of Dermacentor spp. mainly fed on M. glareolus and were seldom found on A. flavicollis. Whereas Ixodes spp. is the dominant tick genus in woodlands of our study area, the distribution and epidemiological role of Dermacentor spp. should be monitored closely. peerReviewed
- Published
- 2010
28. Cues of intraguild predators affect the distribution of intraguild prey
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Yasuyuki Choh, Arne Janssen, Tessa van der Hammen, Maurice W. Sabelis, and Population Biology (IBED, FNWI)
- Subjects
0106 biological sciences ,Intraguild predation ,Phytoseiidae ,Food Chain ,Time Factors ,Oviposition ,Behavioral Ecology - Original Paper ,Ideal free distribution ,medicine.disease_cause ,Affect (psychology) ,010603 evolutionary biology ,01 natural sciences ,Models, Biological ,Predation ,Predator avoidance ,Pollen ,medicine ,Mite ,Animals ,Acari ,Predator ,Ecology, Evolution, Behavior and Systematics ,Ecosystem ,Ovum ,Mites ,Phytoseiid mites ,biology ,Ecology ,Neoseiulus cucumeris ,Feeding Behavior ,biology.organism_classification ,Adaptation, Physiological ,Predator–prey interaction ,010602 entomology ,Predatory Behavior ,Female - Abstract
Theory on intraguild (IG) predation predicts that coexistence of IG-predators and IG-prey is only possible for a limited set of parameter values, suggesting that IG-predation would not be common in nature. This is in conflict with the observation that IG-predation occurs in many natural systems. One possible explanation for this difference might be antipredator behaviour of the IG-prey, resulting in decreased strength of IG-predation. We studied the distribution of an IG-prey, the predatory mite Neoseiulus cucumeris (Acari: Phytoseiidae), in response to cues of its IG-predator, the predatory mite Iphiseius degenerans. Shortly after release, the majority of IG-prey was found on the patch without cues of IG-predators, suggesting that they can rapidly assess predation risk. IG-prey also avoided patches where conspecific juveniles had been killed by IG-predators. Because it is well known that antipredator behaviour in prey is affected by the diet of the predator, we also tested whether IG-prey change their distribution in response to the food of the IG-predators (pollen or conspecific juveniles), but found no evidence for this. The IG-prey laid fewer eggs on patches with cues of IG-predators than on patches without cues. Hence, IG-prey changed their distribution and oviposition in response to cues of IG-predators. This might weaken the strength of IG-predation, possibly providing more opportunities for IG-prey and IG-predators to co-exist.
- Published
- 2010
29. A new species of Myrmozercon Berlese (Acari, Mesostigmata, Laelapidae) associated with ant from Iran
- Author
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Omid Joharchi, Alireza Jalalizand, Azadeh Ghafarian, and Mahdi Jalaeian
- Subjects
biology ,Laelapidae ,Ecology ,nest ,myrmecophiles ,Zoology ,Rural district ,ants ,Iran ,biology.organism_classification ,Myrmozercon ,Article ,taxonomy ,lcsh:Zoology ,Paper report ,Animal Science and Zoology ,Acari ,Mesostigmata ,Taxonomy (biology) ,lcsh:QL1-991 ,Monomorium ,Ecology, Evolution, Behavior and Systematics - Abstract
This paper report on a new species of mites of the genus Myrmozercon associated with ant in Iran – Myrmozercon cyrusi Ghafarian and Joharchi sp. n. was collected associated of the Monomorium sp. in Kenevist Rural District in the Central District of Mashhad County, Khorasan Razavi Province, Iran. This new species is described and illustrations provided. Myrmozercon ovatum Karawajew, 1909 is suspected to be a junior synonym of M. brevipes Berlese, 1902 and host-specificity and host range of Myrmozercon are also reviewed.
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- 2013
30. The Jean Gutierrez spider mite collection
- Author
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Alain Migeon, Centre de Biologie pour la Gestion des Populations (UMR CBGP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
- Subjects
[SDV]Life Sciences [q-bio] ,Agricultural pest ,South Pacific ,New Caledonia ,Spider mite ,lcsh:Zoology ,Botany ,Madagascar ,Acari ,lcsh:QL1-991 ,Family tetranychidae ,TETRANYCHIDAE ,Ecology, Evolution, Behavior and Systematics ,Spider ,Papuasia ,biology ,Ecology ,World ,biology.organism_classification ,Indian ocean ,Tetranychidae ,Western Indian Ocean ,Animal Science and Zoology ,PEST analysis ,Data Paper - Abstract
International audience; The family Tetranychidae (spider mites) currently comprises 1,275 species and represents one of the most important agricultural pest families among the Acari with approximately one hundred pest species, ten of which considered major pests. The dataset presented in this document includes all the identified spider mites composing the Jean Gutierrez Collection hosted at the CBGP (Montferrier-sur-Lez, France), gathered from 1963 to 1999 during his career at the Institut de Recherche pour le Developpement (IRD). It consists of 5,262 specimens corresponding to 1,564 occurrences (combination species/host plant/date/location) of 175 species. Most specimens were collected in Madagascar and other islands of the Western Indian Ocean, New Caledonia and other islands of the South Pacific and Papuasia. The dataset constitutes today the most important one available on Tetranychidae worldwide.
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- 2015
31. New Mesostigmata records and species from the Korean Peninsula.
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KONTSCHÁN, J., PARK, S. J., LIM, J. W., HWANG, J. M., and SEO, H. Y.
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PARASITIFORMES ,SPECIES ,UROPODA ,ZOOLOGICAL research - Abstract
A total of 20 Mesostigmata species are recorded from the Korean Peninsula, of which 15 (Asca nubes Ishikawa, 1969, Lasioseius tomokoae Ishikawa, 1969, Evimirus uropodinus (Berlese, 1903), Macrocheles glaber (Müller, 1860), Macrocheles punctatus Ishikawa, 1967, Pachylaelaps ishizuchiensis Ishikawa, 1977, Gamasiphis pulchellus (Berlese, 1887), Ololaelaps ussurinensis Bregetova & Koroleva, 1964, Gamasellus humosus Ishikawa, 1969, Gamasholaspis variabilis Petrova, 1967, Parholaspulus hiasmaticus Petrova, 1967, Podocinum tsushimanum Ishikawa, 1970, Neoparasitus scleoides Ishikawa, 1969, Veigaia ochracea Bregetova, 1961, Uropoda similihamulifera Hiramatsu, 1979) are presented as first occurrences from this peninsula. Asca aphidioides (Linnaeus, 1758) is already reported from the southern part of the peninsula, but we present the first occurrence in the Democratic People's Republic of Korea. One species (Trachytes koreana Kontschán & Lim, sp. nov.) is described and illustrated in this paper. Seventeen of the recovered species were collected in the Democratic People's Republic of Korea; the others were collected in the area of Republic of Korea. [ABSTRACT FROM AUTHOR]
- Published
- 2014
32. Low temperature induces embryonic diapause in the spider mite, Eotetranychus smithi
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Yasunobu Kameyama and Tetsuo Gotoh
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Aging ,life-history strategy ,Zoology ,Diapause ,Diapause, Insect ,Spider mite ,Botany ,Animals ,Acari ,Overwintering ,Ovum ,photoperiodism ,Spider ,biology ,General Medicine ,biology.organism_classification ,overwintering ,Cold Temperature ,Insect Science ,Papers ,embryonic structures ,Female ,Embryonic diapause ,strawberry ,Tetranychidae ,Moulting - Abstract
The spider mite, Eotetranychus smithi Pritchard & Baker (Acari: Tetranychidae), exhibits a facultative diapause that occurs at the egg stage. Diapause was induced by low temperatures alone (≤ 17.5°C) and averted by high temperatures (≥ 20°C). Photoperiod had little effect on diapause induction. This is the first example of temperature-induced diapause in spider mites. The diapause eggs became larger and darker (orange) than non- diapause eggs (white to pale yellow), suggesting that egg size and egg color are associated with diapause. When mites that were reared from eggs at 25°C and 16:8 L:D were transferred to 15°C and 16:8 L:D just after the start of the teleiochrysalis stage (the final molting stage before adulthood), all females laid non-diapause eggs during the first 30 days and then switched over to laying diapause eggs. The switch to diapause may be caused by the aging of mothers.
- Published
- 2014
33. First record of Borrelia burgdorferi B31 strain in Dermacentor nitens ticks in the northern region of Parana (Brazil)
- Author
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Teresa Carreira, Aline do Nascimento Benitez, Mónica Nunes, Daniela Dib Gonçalves, Julio Cesar de Freitas, Fabiana Maria Ruiz Lopes-Mori, Maria Luísa Vieira, and Odilon Vidotto
- Subjects
DNA, Bacterial ,Male ,Veterinary medicine ,Molecular Sequence Data ,Population ,lcsh:QR1-502 ,rural area ,DNA, Ribosomal ,Microbiology ,lcsh:Microbiology ,ticks ,Lyme disease ,Intergenic region ,DNA, Ribosomal Spacer ,parasitic diseases ,medicine ,Animals ,Acari ,Borrelia burgdorferi ,education ,Dermacentor ,equine ,education.field_of_study ,Base Sequence ,biology ,RNA, Ribosomal, 5S ,Amblyomma ,Sequence Analysis, DNA ,medicine.disease ,biology.organism_classification ,bacterial infections and mycoses ,Virology ,Dermacentor nitens ,RNA, Ribosomal, 23S ,Female ,Borrelia burgdorferi sensu lato ,Brazil ,Ixodidae ,Research Paper - Abstract
The aim of this study was to investigate the presence of DNA of Borrelia burgdorferi sensu lato (s.l.) in ticks that feed on horses used for animal traction in rural Jataizinho, Parana, Brazil. Between February and June 2008, a total of 224 ticks was collected of which 75% were identified as Dermacentor nitens and 25% as Amblyomma cajenense. To amplify B. burgdorferi s.l. DNA, the intergenic space region (ISR) between the 5S (rrf) 23S (rrl) rRNA genes was used as targets for nested-PCR. Two ticks of the D. nitens species were positive for B. burgdorferi s.l. Both species showed a fragment of 184 bp, but the sequencing revealed 99.9% homology with the B. burgdorferi sensu stricto (s.s.) strain B31. These results showed, for the first time, the presence of spirochete DNA infecting ticks that parasitize horses used for animal traction, in the rural municipality mentioned. In conclusion, this study opens up promising prospects for determining the infection rate of B. burgdorferi s.s. genospecies or other species in the equine population, as well as the impact of the infection rate on Lyme disease in the state of Parana.
- Published
- 2013
34. Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China.
- Author
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Zhou, Juan-Xiu, Guo, Xian-Guo, Song, Wen-Yu, Zhao, Cheng-Fu, Zhang, Zhi-Wei, Fan, Rong, Chen, Ting, Lv, Yan, Yin, Peng-Wu, and Jin, Dao-Chao
- Subjects
SPECIES diversity ,HEMORRHAGIC fever with renal syndrome ,COMMUNITIES ,MITES ,NUMBERS of species ,ZOONOSES - Abstract
Simple Summary: In addition to causing dermatitis, some gamasid mites are also the vector or potential vector of some zoonotic diseases. Located in the northwest Yunnan Province of southwest China, the Three Parallel Rivers Area of China is one of the hotspots of biodiversity research in the world. Based on the previous field survey in the Three Parallel Rivers Area from 2001 to 2015, this paper reports the species diversity and basic community characteristics of gamasid mites on small mammals in this unique geographical area for the first time. From the body surface of 3830 small mammal hosts, 26,048 gamasid mites were collected and identified as 10 families, 21 genera and 82 species (excluding 847 unidentified specimens) with high species diversity. The species diversity of the gamasid mite community fluctuated greatly in different elevation gradients. The highest peaks of species richness and β diversity appeared at altitudes of 3000–3500 m (S = 42) and 1500–2000 m (β = 17.5), respectively. The species abundance distribution of the mites was successfully fitted by Preston's lognormal model, and the total number of gamasid mite species in the Three Parallel Rivers Area was estimated to be 153 species. (1) Background: Gamasid mites are a large group of arthropods, and some of them are of medical importance. Besides directly biting humans and causing dermatitis, some gamasid mites are the vector of rickettsialpox and potential vector of hemorrhagic fever with renal syndrome (HFRS). The Three Parallel Rivers Area of China is one of the hotspots of biodiversity research in the world, with complicated topographic landforms, different types of vegetation, special elevation gradients and high biodiversity. (2) Methods: Species richness (S): the Shannon–Wiener diversity index (H), Simpson dominance index (D) and Pielou evenness index (E) were used to analyze the basic community structure. The β diversity (Cody index) was used to reflect the diversity difference between any two adjacent elevation gradients. The method based on Preston's lognormal model for species abundance distribution was used to estimate the total number of gamasid mite species. (3) Results: A total of 3830 small mammal hosts captured from the nine survey sites were identified as 44 species, 27 genera and nine families in five orders. Apodemus chevrieri, Eothenomys miletus and A. draco were the dominant host species with a total constituent ratio C
r = 52.037%. From the body surface of the hosts, 26,048 gamasid mites were collected and identified as 10 families, 21 genera and 82 species (excluding 847 unidentified specimens) with high species richness (S = 82) and diversity (H = 2.33). The three dominant mite species were Dipolaelaps anourosorecis, Laelaps nuttalli and L. echidninus, with a total Cr = 64.46% (16,791/26,048). There are significant differences in the species composition, species diversity and dominant species of gamasid mites on different hosts. The species diversity of the mite community fluctuated greatly in different elevation gradients. The highest peaks of species richness and β diversity appeared at altitudes of 3000–3500 m (S = 42) and 1500–2000 m (β = 17.5), respectively. The species abundance distribution of the mites was successfully fitted by Preston's lognormal model with S ^ (R) = 19 e − [ 0.22 (R − 0) ] 2 (α = 0.22, R2 = 0.9879). Based on fitting the theoretical curve by Preston's model, the total number of gamasid mite species was estimated to be 153 species. (4) Conclusions: Gamasid mites on small mammals are abundant with complex community structures and high species diversity in the Three Parallel Rivers Area of China. There is an apparent community heterogeneity of the mites on different hosts and in different environments. [ABSTRACT FROM AUTHOR]- Published
- 2022
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35. A New Aculodes Species (Prostigmata: Eriophyidae) Described from an Invasive Weed by Morphological, Morphometric and DNA Barcode Analyses †.
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Vidović, Biljana, Anđelković, Nikola, Jojić, Vida, Cvrković, Tatjana, Petanović, Radmila, Marini, Francesca, Cristofaro, Massimo, and Rector, Brian G.
- Subjects
DNA analysis ,CYTOCHROME oxidase ,GENETIC barcoding ,NOXIOUS weeds ,ACARIFORMES ,ERIOPHYIDAE ,CHEATGRASS brome ,WEEDS - Abstract
Simple Summary: Natural enemies of cheatgrass, an invasive plant in the western USA that is associated with recent increases in destructive wildfires, were sought as part of a classical biological control program targeting that plant. A population of mites was discovered infesting cheatgrass plants in central Bulgaria and determined to be a new species using morphological, morphometric analysis (i.e., measurement of specific body parts) and DNA barcoding (i.e., comparison of DNA sequences in genes shared by all mite species). Without these modern analytical tools, this mite would probably have been considered as the same species as another mite that infests other plants. This new mite species will now be tested to determine if it is suitable for importation and release in the USA as a biological control agent of cheatgrass. A new species of eriophyoid mite, Aculodes marcellisp. nov., was discovered on cheatgrass, Anisantha tectorum (L.) Nevski (syn. Bromus tectorum L.), an annual grass that is native to Eurasia and Northern Africa. This grass was introduced to North America near the end of the 19th century and now is widespread and associated with the observed increases in the size, frequency, and intensity of wildfires in western N. America. In this paper, A. marcellisp. nov., is morphologically described and illustrated. Compared with other Aculodes spp., it differs based on morphology and the sequence of the mitochondrial cytochrome oxidase gene, subunit I (MT-CO1). Results of morphometric analysis showed clear differentiation between A. marcellisp. nov., and the most similar congener, A. altamurgiensis from Taeniatherum caput-medusae. Analysis of MT-CO1 sequence divergence revealed significant levels of genetic variation (17.7%) and supported the results from the morphometric analysis; therefore, it is determined that they are two different species. Aculodes marcellisp. nov., is a new candidate agent for classical biological control of A. tectorum. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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36. Biocontrol of pigeon tick Argas reflexus (Acari: Argasidae) by entomopathogenic fungus Metarhizium Anisopliae (Ascomycota: Hypocreales)
- Author
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Seyed Hassan Pourseyed, Abdulghaffar Ownagh, Iraj Bernousi, Karim Mardani, and Mosa Tavassoli
- Subjects
Veterinary medicine ,biology ,Acaricide ,Hypocreales ,Argasidae ,fungi ,lcsh:QR1-502 ,Metarhizium anisopliae ,biological control ,Tick ,biology.organism_classification ,Microbiology ,lcsh:Microbiology ,Conidium ,entomopathogenic fungus ,Veterinarian Microbiology ,Entomopathogenic fungus ,Botany ,parasitic diseases ,Argas reflexus ,Acari ,pigeon tick ,Research Paper - Abstract
The pigeon tick Argas reflexus is a pathogen-transmitting soft tick that typically feeds on pigeons, but can also attack humans causing local and systemic reactions. Chemical control is made difficult due to environmental contamination and resistance development. As a result, there is much interest in increasing the role of other strategies like biological control. In this study, the efficacy of three strains (V245, 685 and 715C) of entomopathogenic fungus Metarhizium anisopliae for biological control of three life stages of pigeon tick A. reflexus including eggs, larvae, engorged and unfed adults was investigated under laboratory conditions. Five concentrations of different strains of M. anisopliae ranging from 10(3) to 10(7) conidia/ml were used. All fungal strains significantly decreased hatchability of A. reflexus eggs. Strain V245 was the most effective strain on the mortality of larval stage with nearly 100% mortality at the lowest concentration (10(3) conidia/ml) at 10 days post-inoculation. The mortality rate of both engorged and unfed adult ticks were also increased significantly exposed to different conidial concentrations compared to the control groups (P0.05) making this fungus a potential biological control agent of pigeon tick reducing the use of chemical acaricides.
- Published
- 2011
37. New record of the genus Scaptognathus (Acari: Halacaridae) from Antalya with a checklist of marine halacarid mites of Turkey.
- Author
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DURUCAN, Furkan
- Subjects
MITES ,HALACARIDAE ,ECHINODERMATA ,SPECIES distribution ,TAXONOMY - Abstract
This paper presents the first results of a study on the Scaptognathus (Acari: Halacaridae) mites from the Mediterranean Sea coast of Turkey. Two species, S. hallezi Trouessart, 1894 and S. sabularius André, 1961, are newly recorded from Turkey. They are briefly described with drawings, habitats, and worldwide distributions. Additionally, a checklist is provided for the marine halacarid species of Turkey. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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38. ダニ類の高次分類体系の改訂について -高次分類群の一部の和名改称を含む-
- Author
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島野 智之
- Abstract
Copyright of Journal of the Acarological Society of Japan is the property of Acarological Society of Japan and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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39. Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China.
- Author
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Li, Bei, Guo, Xian-Guo, Ren, Tian-Guang, Peng, Pei-Ying, Song, Wen-Yu, Lv, Yan, Yin, Peng-Wu, Liu, Zhe, Liu, Xin-Hang, and Qian, Ti-Jun
- Abstract
Based on a long-term field investigation in the five provincial regions of Southwest China between 2001 and 2019, the present paper studied the infestation and related ecology of chigger mites (chiggers) on the large Chinese vole (Eothenomys miletus), an endemic and dominant rodent species in the regions. A total of 52331 chiggers were collected from 2661 voles, and 52261 mites were identified as 185 species and 13 genera in the family Trombiculidae with very high species diversity. The identified 185 chigger species on E. miletus (a single rodent species) even exceeded those recorded in some countries. The overall infestation prevalence (P m = 53.96%), mean abundance (MA = 19.64) and mean intensity (MI = 36.39) on E. miletus were much higher than those on some other rodent species in the same regions. Although the species composition showed a moderate similarity (J = 0.63) between male and female hosts (E. miletus), the infestation indices (P m = 56.25%, MA = 21.67) of chiggers on male hosts were higher than those on the females (P m = 51.23%, MA = 17.09) (P < 0.05). Two dominant chigger species, Leptotrombidium scutellare (C r = 19.17%) and L. sinicum (C r = 11.06%), showed an aggregated distribution pattern among different individuals of their host E. miletus , and a relatively high degree of positive association existed between the two dominant chigger species with PCC = 0.57, DI = 0.60 and OI = 0.62 (x
2 = 857.46, P < 0.001). Leptotrombidium d ensipunctatum , Walchia koi , Helenicula hsui , L. scutellare and W. ewingi showed a high degree of environmental adaptability to their environments with high niche breadths. The theoretical curve of the species abundance distribution of chigger community on E. miletus was successfully fitted with Preston's lognormal distribution model. Based on the theoretical curve fitting, the expected total number of chigger species on E. miletus was roughly estimated to be 223 species, and 38 chigger species were probably missed in the sampling investigation. [Display omitted] • Chiggers are the common ectoparasites of rodents and vector of scrub typhus, Eothenomys miletus is the reservoir host and infectious source of zoonoses. • The dominant chigger specie, Leptotrombidium scutellare , is one of the main and powerful vectors of scrub typhus in China. • To study the chigger mites of E. miletus voles in such a wide geographical region. [ABSTRACT FROM AUTHOR]- Published
- 2022
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40. A new pattern of parasitism in water mites (Hydrachnidia)? An insight into their relationships with pupae of caddisflies (Trichoptera).
- Author
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Zawal, Andrzej, Buczyńska, Edyta, Malicka, Roksana, Buczyński, Paweł, and Stępień, Edyta
- Abstract
To date, relatively few data have been available regarding the parasitism of water mite larvae on caddisflies; most available information relates to the adult stadia, fewer to caddisfly larvae, with just single references to pupae. The present paper examines the occurrence (phoresy and parasitism) of Piona stjordalensis larvae (119 individuals) on the larvae and pupae of Mystacides longicornis. It is possible that water mite larvae exhibit a new type of parasitism on caddisflies, with two consecutive parasitic larval stadia: one on the pupa, the other on the imago. [Display omitted] • First record of Piona stjordalensis (Hydrachnidia) on the aquatic stages of Mystacides longicornis (Trichoptera) is given. • This is the second identified case within water mites of such relationships as for caddisfly pupae in the literature. • 119 larvae of Piona stjordalensis were phoretic on caddisfly larvae, on pupae –phoretic and most of all parasitic. • On the caddisfly larvae, the water mites were attached only to the abdomen, on pupae – on all body parts. • Probably Piona stjordalensis exhibit a new type of parasitism on caddisflies, with two consecutive parasitic larval stadia. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
41. The first description of a microtrombidiid mite (Actinotrichida: Prostigmata, Microtrombidiidae) from Baltic amber, with notes on related extant genera and species
- Author
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Marta Konikiewicz, Joanna Mąkol, and Elżbieta Sontag
- Subjects
0106 biological sciences ,Baltic amber ,Parasitengona ,010607 zoology ,“Blue Earth” ,Gulf of Gdańsk ,Succinite ,“Blaue Erde” ,Eocene ,01 natural sciences ,Extant taxon ,Danziger Bucht ,Mite ,Acari ,biology ,Polen ,Ecology ,Palaeontology ,Prostigmata ,Paleontology ,Microtrombidiidae ,biology.organism_classification ,010602 entomology ,Taxon ,Poland ,Succinit ,Baltischer Bernstein ,Research Paper ,Eozän - Abstract
Discovery of parasitengone mites (Acari) in the Gulf of Gdańsk deposits of Baltic amber (“Blue Earth” sediment) resulted in the first description of a fossil representative of Microtrombidiidae. The new species, based on larvae, displays affinity to recent members of Montenegtrombium Saboori and Pešić, 2006, Persianthrombium Sedghi, Saboori and Hakimitabar (in Sedghi et al. 2010) and Porttrombidium Haitlinger, 2000, known from the southwestern Palaearctic. A comparison with related genera and species places the newly described taxon in Porttrombidium (as Porttrombidium gedanense sp. nov.). Montenegtrombium is regarded as a junior synonym of Porttrombidium.
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42. Lost companions: a new quill mite species and its possible coextinction with the Carolina parakeet
- Author
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Maciej Skoracki, Markus Unsöld, Milena Patan, and Bozena Sikora
- Subjects
Acari ,birds ,ectoparasites ,extinction ,parrots ,psittaciformes ,syringophilidae ,Biochemistry ,QD415-436 ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
Investigations of the parasites associated with extinct avian species provide unique insights into the ecology and evolution of both hosts and their parasitic counterparts. In the present paper, a new quill mite species, Peristerophila conuropsis sp. n., belonging to the family Syringophilidae (Prostigmata: Cheyletoidea) is described from the Carolina parakeet Conuropsis carolinensis Linnaeus (Psittaciformes: Psittacidae). This new species was collected from museum dry skin of the Carolina parakeet, the only native representative of the Psittacidae in the United States, which was an abundant resident of the southeastern and midwestern states and has been extinct in the beginning of the 20th century. Comment on the current taxonomic state and host associations of the genus Peristerophila are provided. Based on the host associations and habitats occupied by Peristerophila and related genera on parrots, it is hypothesized with the high probability that P. conuropsis has been extinct along with its host.
- Published
- 2024
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43. Global Studies of the Host-Parasite Relationships between Ectoparasitic Mites of the Family Syringophilidae and Birds of the Order Columbiformes.
- Author
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Kaszewska-Gilas, Katarzyna, Kosicki, Jakub Ziemowit, Hromada, Martin, and Skoracki, Maciej
- Subjects
HOST-parasite relationships ,MITES ,GLOBAL studies ,BIPARTITE graphs ,SPECIES specificity ,ACARIFORMES ,CONFIDENCE intervals - Abstract
Simple Summary: Mites of the family Syringophilidae (Acariformes: Cheyletoidea)—also called quill mites—are permanent and highly specialized ectoparasites of birds living inside the calamus of the various types of the feathers. In the present paper, we conducted a study focused on prevalence, host specificity, networks, and phylogeny of the syringophilid mites parasitizing on pigeon and doves (Columbiformes). We postulate that the Syringophilidae mites and Columbiformes bird system represent a model which can be used in a broader study of the relationship between hosts and parasites. The quill mites belonging to the family Syringophilidae (Acari: Prostigmata: Cheyletoidea) are obligate ectoparasites of birds. They inhabit different types of the quills, where they spend their whole life cycle. In this paper, we conducted a global study of syringophilid mites associated with columbiform birds. We examined 772 pigeon and dove individuals belonging to 112 species (35% world fauna) from all zoogeographical regions (except Madagascan) where Columbiformes occur. We measured the prevalence (IP) and the confidence interval (CI) for all infested host species. IP ranges between 4.2 and 66.7 (CI 0.2–100). We applied a bipartite analysis to determine host–parasite interaction, network indices, and host specificity on species and whole network levels. The Syringophilidae–Columbiformes network was composed of 25 mite species and 65 host species. The bipartite network was characterized by a high network level specialization H2′ = 0.93, high nestedness N = 0.908, connectance C = 0.90, and high modularity Q = 0.83, with 20 modules. Moreover, we reconstructed the phylogeny of the quill mites associated with columbiform birds on the generic level. Analysis shows two distinct clades: Meitingsunes + Psittaciphilus, and Peristerophila + Terratosyringophilus. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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44. A Report of Chigger Mites on the Striped Field Mouse, Apodemus agrarius, in Southwest China.
- Author
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Yan-Ling Chen, Xian-Guo Guo, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Xiao-Bin Huang, and Ti-Jun Qian
- Subjects
MICROTUS ,APODEMUS ,TSUTSUGAMUSHI disease ,SPECIES diversity ,MITES ,ACARIFORMES ,TIME series analysis - Abstract
Based on the field investigations in 91 investigation sites (counties) in southwest China between 2001 and 2019, the present paper reported the chigger mites on A. agrarius mice in southwest China for the first time by using a series of statistical methods. From 715 striped field mice captured in 28 of 91 investigated sites, only 255 chiggers were collected, and they were identified as 14 species, 6 genera in 3 subfamilies under 2 families. Of 715 A. agrarius mice, only 24 of them were infested with chigger mites with low overall prevalence (PM=3.4%), overall mean abundance (MA=0.36 mites/host) and overall mean intensity (MI=10.63 mites/host). The species diversity and infestation of chiggers on A. agrarius were much lower than those previously reported on some other rodents in southwest China. On a certain species of rodent, A. agrarius mouse in southwest China seems to have a very low susceptibility to chigger infestations than in other geographical regions. Of 14 chigger species, there were 3 dominant species, Leptotrombidium sialkotense, L. rupestre and Schoengastiella novoconfuciana, which were of aggregated distribution among different individuals of A. agrarius hosts. L. sialkotense, one of 6 main vectors of scrub typhus in China, was the first dominant on A. agrarius. The species similarity of chigger mites on male and female hosts was low with CSS=0.25, and this reflects the sex-bias of different genders of A. agrarius mice in harboring different chigger species. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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45. Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China.
- Author
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Fan Ding, Wen-Li Jiang, Xian-Guo Guo, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, and Rong Xiang
- Subjects
RATTUS rattus ,RATS ,MITES ,TSUTSUGAMUSHI disease ,CURVE fitting ,PROVINCES - Abstract
This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was Ŝ (R)= 37e
-(0.28R) ². The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chigger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographical regions with large host samples are recommended in the investigations of chigger mites. [ABSTRACT FROM AUTHOR]- Published
- 2021
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46. Size spectra of the edaphic fauna of typical Argiudol soils of the Rolling Pampa Region, Argentina
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Víctor Velazco, Rosana Sandler, Maria Cynthia Valeria Sanabria, Liliana Falco, Carlos Coviella, and Leonardo Saravia
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Soil fauna ,soil invertebrates ,Acari ,Collembola ,Biology (General) ,QH301-705.5 - Abstract
Soil-dwelling organisms populate the spaces—referred to as interstices—between the litter on the soil surface and the pores in the soil's organo-mineral matrix. These organisms have pivotal roles in soil ecosystem functions, such as the breakdown and decomposition of organic matter, the dispersal of bacterial and fungal spores and biological habitat transformation. These functions, in turn, contribute to broader ecosystem services like carbon and nutrient cycling, soil organic matter regulation and both chemical and physical soil fertility.This study provides morphological data pertaining to a range of soil organism sizes, specifically in Argiudol soils subjected to varying levels of agricultural activity in the Rolling Pampas Region, one of the world's most extensive and fertile plains.The primary focus is on soil microarthropods—namely, Acari (mites) and Collembola (springtails)—with a body width of less than 2 mm. These organisms constitute the majority of life in the intricate soil pore network. Additionally, the study documents species of earthworms (Oligochaeta, Crassiclitelata), recognised as ecosystem engineers for their ability to create physical channels in the soil matrix and to distribute organic matter. Moreover, the study includes measurements of morphological traits of soil-dwelling "macrofauna" (organisms with a body width greater than 2 mm), which are also implicated in various soil ecosystem functions. These include population regulation by apex predators, organic matter decomposition, biogenic structure formation, nutrient mobilisation and herbivory.In this paper, we report both the geographical locations and individual measurements of key morphological traits for over 7,000 specimens, covering a range of soil-dwelling organisms. These include springtails (Entognatha, Collembola), mites (Arachnida, Acari), earthworms (Oligochaeta, Crassiclitellata) and additional soil macrofauna. All specimens were collected from typical Argiudol soils located in three distinct agricultural systems characterised by varying levels of land-use intensity. To our knowledge, no other dataset exists providing this information for the Argentinian Pampas.
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- 2023
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47. Identificación de Struthiopterolichus sp. (Astigmata: Pterolichidae) en avestruces (Struthio camelus camelus) de Cauca, Colombia.
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Castro-Castro, Fernando, Garcia-Agudelo, Angie, Muñoz, Luis, Cortés-Vecino, Jesús, González-Jiménez, Indrid, Robayo-Sánchez, Laura, and Rivera-Calderón, Luis
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ACARIFORMES , *MITES , *PLASTIC bags , *FEATHERS , *LABORATORIES , *ECTOPARASITES , *OSTRICHES - Abstract
Objetive. Identify ectoparasites in the primary feathers of adult ostriches in a hatchery of Department from Cauca, Colombia. Materials and methods. A total of fifteen adult animals (over 7 years old) with an average weight of 120 kg (10 were females and 5 males) were selected for the study. From each specimen, three primary feathers were extracted in the wing, being deposited in plastic bags and sent to the Basis science laboratory at Universidad Antonio Nariño. A counter sample of mites fixed in alcohol at 70% was sent to laboratory of the Universidad Nacional, then, the parasites were mounted o slides and under the microscope. This study was descriptive and convenient. Results. The feathers had disorganized barbs and a brown powder on the rachis. Microscopically was identified approximately1000 specimens of a feather mite per sample of order Astigmata, family Pterolichidae and genus Struthiopterolichus sp., being able to differentiate male, female, nymphs and larvae. This is the first report of the mite Struthiopterolichus sp. in ostriches from Colombia Conclusions. In the ostriches inspected were collected feathers that contained the mite Struthiopterolichus sp. The evidence of this mite can generate alerts of control and health surveillance inside of the hatchery. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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48. Molecular Phylogenetics and Light Microscopy Reveal "True" and "False" Calacarines and Novel Genital Structures in Gall Mites (Acariformes, Eriophyoidea).
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Chetverikov, Philipp E., Craemer, Charnie, Gankevich, Vladimir D., Le, Nhung Thi Tuyet, Nguyen, Viet Duc, Trinh, Hoat Xuan, and Amrine, James
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ERIOPHYIDAE ,MOLECULAR phylogeny ,ACARIFORMES ,MICROSCOPY ,FEMALE reproductive organs - Abstract
Gall mites (Eriophyoidea) are cosmopolitan microscopic phytoparasites that often transmit viruses and induce gallogenesis. The tribe Calacarini is diagnosed by a set of plesiomorphic and homoplastic traits, including elimination of setae sc shared with other lineages of Eriophyoidea. We reviewed data on the generic diversity of calacarines, revised the concept of the type genus Calacarus Keifer 1940, and proposed three zones (MZ, SMZ, LZ) in the prodorsal shields of calacarines to simplify descriptions of their shield patterns. We describe three new calacarine species (Calacarus baviensisn. sp., C. burchelliaen. sp., and Viginticus searsiaen. sp.) from indigenous dicotyledonous trees from South Africa and Vietnam and report on new findings of Paracalacarus podocarpi Keifer in Brazil, Jiangsuacarus sp. in the USA, and Calacarus pusillus Pye in Latvia and Russia. The latter represents the new most northern locality of Calacarini. Reinvestigating the type species of Jaranasia Chandrapatya & Boczek 2000 revealed that absence of setae l" II is the only character separating it from Jiangsuacarus Xue 2009. We proposed two new combinations: Jiangsuacarus sesleriae (Skoracka 2004) n. comb. (transferred from Jaranasia) and Procalacarus mussaendae (Keifer 1977) n. comb. (transferred from Calacarus). Partial sequences of Cox1 and 28S genes were obtained for six calacarines, some of them originating from old ethanol material kept at room temperature. Molecular phylogenetics revealed a stable cluster of "true" calacarine sequences comprising Calacarus, Jaranasia, Latitudo, and Viginticus and a polyphyletic group of erroneous sequences assigned to Calacarini in GenBank. All investigated females of calacarines have a pair of genital tubules associated with the vestibulum and hypothesized to participate in fertilization. This finding may contribute to resolving the question on how the fusion of gametes happens in gall mites. [ABSTRACT FROM AUTHOR]
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- 2024
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49. Diversity of Quill Mites of the Family Syringophilidae (Acariformes: Prostigmata) Parasitizing Starlings of the Genus Lamprotornis (Passeriformes: Sturnidae).
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Skoracki, Maciej, Patan, Milena, Unsoeld, Markus, Hromada, Martin, Kwieciński, Zbigniew, and Marcisova, Iva
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ACARIFORMES ,MITES ,STARLINGS ,SPECIES ,PASSERIFORMES - Abstract
Quill mites of the family Syringophilidae (Acariformes: Prostigmata) parasitizing starlings of the genus Lamprotornis Temminck (Aves: Passeriformes: Sturnidae) from the sub-Saharan region are comprehensively studied for the first time. Among them, two new species are described: (1) Syringophiloidus soponai Skoracki, Patan and Unsoeld sp. n., collected from four host species—Lamprotornis chalybaeus (Hemprich et Ehrenberg) (type host) in Kenya, Tanzania, and Ethiopia; L. superbus (Rüppell) in Kenya and Tanzania; L. chloropterus (Swainson) and L. unicolor (Shelley) both in Tanzania; (2) Syringophilopsis parasturni Skoracki, Patan and Unsoeld sp. n. collected from L. pulcher (Müller) and L. chalcurus (Nordmann), both in Senegal. Additionally, two Lamprotornis species, L. chalybaeus in Tanzania and Kenya and L. chloropterus in Kenya, are recorded as the new hosts for Picobia lamprotornis Klimovicova et al., 2004. We also discussed the diversity of the syringophilid mites associated with starlings. [ABSTRACT FROM AUTHOR]
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- 2024
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50. Some raphignathoid mites (Acariformes: Trombidiformes: Prostigmata) in Lorestan Province, with re-description of Raphignathus evidus Fan as a new record from Iran.
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Hatami, Parisa, Jafari, Shahriar, and Ahmad-Hosseini, Mohammad
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PREDATORY mite ,MITES ,ACARIFORMES ,PROVINCES ,INSECTS - Abstract
Mites of Raphignathoidea are important natural enemies of some small pests like phytophagous mites and some insects in various ecosystems. Fauna of this superfamily was studied in Lorestan province, Iran, during 2019-2020. In this survey, a total of 20 species belonging to seven genera from three families were collected and identified. Among them, Raphignathus evidus Fan is re-described and recorded as new to Iranian mite's fauna. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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