1,022 results on '"HERPESTIDAE"'
Search Results
2. Observations of unusual behavior in two invasive carnivores in the Dominican Republic: arboreal foraging in the Small Indian Mongoose (Urva auropunctata) and semi-aquatic hunting in the Domestic Cat (Felis catus)
- Author
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Miguel A. Landestoy T., Francis O. Reyes, and Isabela Hernández-Rodríguez
- Subjects
small indian mongoose ,herpestidae ,feral cat ,domestic cat ,invasive carnivores ,anthropogenic threats ,foraging behavior ,Ecology ,QH540-549.5 ,Zoology ,QL1-991 - Abstract
We report unusual foraging events in two of the most invasive terrestrial predators in the world that are well established in the Caribbean islands: the Small Indian Mongoose (Urva auropunctata), locally known as jurón, and the Domestic Cat (Felis catus). The former is well known to be a ground-dwelling species, whereas the latter usually avoids water. We documented tree-climbing in the mongoose and semi-aquatic hunting in a domestic cat. The observations were recorded in southern Dominican Republic, on the island of Hispaniola.
- Published
- 2023
- Full Text
- View/download PDF
3. New Carnivoran (Mammalia: Carnivora) specimens from the Siwaliks of Pakistan and India and their faunal and evolutionary implications.
- Author
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Jasinski, Steven E., Abbas, Sayyed Ghyour, Mahmood, Khalid, Babar, Muhammad Adeeb, and Khan, Muhammad Akbar
- Subjects
- *
MAMMALS , *MUSTELIDAE , *BIODIVERSITY , *FOSSILS , *NEOGENE Period , *CARNIVORA - Abstract
Recently collected carnivoran specimens from the Siwalik Group of Pakistan are described and discussed. These specimens add to our knowledge of the previously known taxa while also adding to our biogeographic, stratigraphic, and temporal knowledge of the carnivorans from the Siwaliks. At least eight distinct taxa are identified, and although most specimens are fragmentary, some hyaenid specimens are identified further (e.g. Lycyaena and Ictitherium). We identify and describe the first herpestid fossils from the Chinji Formation, the first hyaenid (Lycyaena cf. L. dubia) from the Tatrot Formation, and the first definitive occurrence of Ictitherium (Ictitherium cf. I. viverrinum) from the Dhok Pathan Formation. We report the first occurrences of several taxa from various sites in the Siwaliks of Pakistan, including the first reports of any carnivorans from Dhok Milan, Kohtehra, and Lawa. Individual sites show a wide range of carnivoran biodiversity, however larger scale trends are more discernible when comparing those between formations in the Siwaliks. Several taxa disappear over time from the carnivoran fauna of the Siwaliks, starting with barbourofelines, and continuing with amphicyonids (and non-carnivoran hyaenodontids). Felids and mustelids are the most diverse carnivorans in the Siwaliks, while caniforms become more prevalent through time. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. A tale of two African mongooses (Carnivora: Herpestidae): differing genetic diversity and geographical structure across a continent.
- Author
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Veron, Géraldine, Daniel, Caroline, Pagani, Paolo, Do Linh San, Emmanuel, Kitchener, Andrew C., and Hassanin, Alexandre
- Subjects
- *
GENETIC variation , *MONGOOSES , *LIFE history theory , *QUATERNARY Period , *HABITAT selection , *CARNIVORA - Abstract
Phylogeographies of African mammals reveal patterns that correlate with Pleistocene environmental fluctuations and geographical barriers, which may affect species differently according to their habitat preferences and dispersal capabilities. The marsh mongoose Atilax paludinosus, a widely distributed African carnivoran, is a good model to compare with other African mammals. Here, we aimed to determine if its phylogeographical patterns depend on habitat preferences or other factors, such as dispersal capabilities. One nuclear and two mitochondrial markers were sequenced for marsh mongooses sampled throughout the species range, and sequences were also analysed for another widely distributed African mongoose, the white-tailed mongoose Ichneumia albicauda, previously studied, but more completely for this study. In the marsh mongoose we observed a deep divergence between West + Central Africa and East + South Africa, a pattern also observed in both forest and savanna mammals. With good dispersal capabilities and a preference for riparian habitats, the marsh mongoose may have been confined to forest refugia during Quaternary dry periods and may have used rivers as dispersal corridors. In contrast, in the white-tailed mongoose, the haplogroups were strongly divergent which may indicate more limited dispersal capabilities, but also reflect the preference of this species for more open habitats. These results suggest that life history traits, in addition to habitat preferences, had an impact on how these species were affected by past environmental changes, which is reflected in the geographical genetic structure today. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
5. Combining ranger records and biogeographical models to identify the current and potential distribution of an expanding mesocarnivore in southern Europe.
- Author
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Díaz-Ruiz F, Descalzo E, Martínez-Jauregui M, Soliño M, Márquez AL, Farfán MÁ, Real R, Ferreras P, and Delibes-Mateos M
- Subjects
- Animals, Herpestidae, Animal Distribution, Animals, Wild, Spain, Environmental Monitoring methods, Ecosystem, Conservation of Natural Resources methods
- Abstract
Human-wildlife conflicts (HWC) are increasing and are potentially harmful to both people and wildlife. Understanding the current and potential distribution of wildlife species involved in HWC, such as carnivores, is essential for implementing management and conservation measures for such species. In this study, we assessed both the current distribution and potential distribution (forecast) of the Egyptian mongoose (Herpestes ichneumon) in the central part of the Iberian Peninsula. We acquired data concerning mongoose occurrences through an online questionnaire sent to environmental rangers. We used the municipality level as the sampling unit because all municipalities within the study area were covered at least by one ranger. Using the information provided by rangers (i.e. occurrences in their municipalities), we constructed environmental favourability distribution models to assess current and potential mongoose distribution through current distribution models (CDM) and ecological models (EM), respectively. >300 rangers participated in the survey and mongooses were reported in a total of 181 of 921 municipalities studied. The CDM model showed a current distribution mainly concentrated on the western part of the study area, where intermediate-high favourability values predominated. The EM model revealed a wider potential distribution, including the south-east part of the study area, which was also characterised by intermediate-high favourability values. Our predictions were verified using independent data, including confirmation of mongoose reproduction by rangers, reports by other experts, and field sampling in some areas. Our innovative approach based on an online survey to rangers coupled with environmental favourability models is shown to be a useful methodology for assessing the current distribution of cryptic but expanding wildlife species, while also enabling estimations of future steps in their expansion. The approach proposed may help policy decision-makers seeking to ensure the conservation of expanding wildlife species, for example, by designing awareness campaigns in areas where the target species is expected to arrive., Competing Interests: Declaration of competing interest The authors have no relevant interests to disclose., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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6. Androgen-mediated maternal effects and trade-offs: postnatal hormone development, growth, and survivorship in wild meerkats.
- Author
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Davies CS, Shearer CL, Greene LK, Mitchell J, Walsh D, Goerlich VC, Clutton-Brock TH, and Drea CM
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- Animals, Female, Male, Pregnancy, Prenatal Exposure Delayed Effects metabolism, Insulin-Like Growth Factor I metabolism, Testosterone metabolism, Estradiol, Reproduction drug effects, Reproduction physiology, Androgens, Herpestidae
- Abstract
Introduction: Mammalian reproductive and somatic development is regulated by steroid hormones, growth hormone (GH), and insulin-like growth factor-1 (IGF-1). Based largely on information from humans, model organisms, and domesticated animals, testosterone (T) and the GH/IGF-1 system activate sexually differentiated development, promoting male-biased growth, often at a cost to health and survivorship. To test if augmented prenatal androgen exposure in females produces similar developmental patterns and trade-offs, we examine maternal effects in wild meerkats ( Suricata suricatta ), a non-model species in which adult females naturally, albeit differentially by status, express exceptionally high androgen concentrations, particularly during pregnancy. In this cooperative breeder, the early growth of daughters predicts future breeding status and reproductive success., Methods: We examine effects of normative and experimentally induced variation in maternal androgens on the ontogenetic patterns in offspring reproductive hormones (androstenedione, A
4 ; T; estradiol, E2 ), IGF-1, growth from pup emergence at 1 month to puberty at 1 year, and survivorship. Specifically, we compare the male and female offspring of dominant control (DC or high-T), subordinate control (SC or lower-T), and dominant treated (DT or blocked-T) dams, the latter having experienced antiandrogen treatment in late gestation., Results: Meerkat offspring showed sex differences in absolute T and IGF-1 concentrations, developmental rates of A4 and E2 expression, and survivorship - effects that were sometimes socially or environmentally modulated. Atypical for mammals were the early male bias in T that disappeared by puberty, the absence of sex differences in A4 and E2 , and the female bias in IGF-1. Food availability was linked to steroid concentrations in females and to IGF-1, potentially growth, and survival in both sexes. Maternal treatment significantly affected rates of T, E2 , and IGF-1 expression, and weight, with marginal effects on survivorship; offspring of DT dams showed peak IGF-1 concentrations and the best survivorship., Discussion: Maternal effects thus impact offspring development in meerkats, with associated trade-offs: Whereas prenatal androgens modify postnatal reproductive and somatic physiology, benefits associated with enhanced competitiveness in DC lineages may have initial costs of reduced IGF-1, delay in weight gain, and decreased survivorship. These novel data further confirm the different evolutionary and mechanistic pathways to cooperative breeding and call for greater consideration of natural endocrine variation in both sexes., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Davies, Shearer, Greene, Mitchell, Walsh, Goerlich, Clutton-Brock and Drea.)- Published
- 2024
- Full Text
- View/download PDF
7. Comparison of the effectiveness and efficiency of the grid and link search methods to recover scattered skeletal remains.
- Author
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Keyes CA
- Subjects
- Animals, Swine, Herpestidae, Forensic Anthropology methods, Humans, Surveys and Questionnaires, Feeding Behavior, Models, Animal, Dogs, Body Remains, Bone and Bones
- Abstract
The grid and link search methods are used to recover scattered skeletal remains. Neither have not been compared robustly and clear guidelines for the link method have not been sufficiently developed. The study aimed to compare the effectiveness and efficiency of both methods and propose guidelines for the link method. The scattering patterns of two scavengers of forensic relevance-slender mongooses (Galerella sanguinea) and black-backed jackals (Canis mesomelas)-were recreated using four pig skeletons (Sus scrofa domesticus). Two groups (n = 6 each) were assigned a different method to recover the scattered remains. The length of the search and when each bone was located for each scatter pattern was recorded for each group and scatter pattern. A Likert scale questionnaire assessed participants' perceptions of their assigned method. A paired t-test (p = 0.005) compared the efficiency of each method and the questionnaire answers. Both methods were effective, recovering 100% of all remains. The link method was more efficient for both scatter patterns, despite there being no statistical significance (jackal: p = 0.089; mongoose: p = 0.464). Participants indicated favorable views for both methods; however, the link method scored significantly more favorably (p = 0.01) for efficiency. Specific guidelines were developed for the use of the link method. The link method is suggested for the recovery of scattered remains in forensic contexts, especially when the scavenger, its behavior, and scattering pattern is known or suspected., (© 2024. The Author(s).)
- Published
- 2024
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8. Sparganosis due to Spirometra sp. (Cestoda; Diphyllobothriidae) in captive meerkats (Suricata suricatta)
- Author
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Brittany McHale, R. Trey Callahan, Kelsey L. Paras, Martha Weber, Lisa Kimbrell, Yanet Velázquez-Jiménez, Rita McManamon, Elizabeth W. Howerth, and Guilherme G. Verocai
- Subjects
Broad tapeworm ,Diphyllobothriidea ,Herpestidae ,Larval cestodosis ,Plerocercoid ,Sparganosis ,Zoology ,QL1-991 - Abstract
We report three cases of sparganosis due to plerocercoids of the tapeworm Spirometra sp. in captive meerkats (Suricata suricatta) from a zoo exhibit in the southeastern United States. Two meerkats were euthanized, one due to an uncontrollable seizure and the other due to trauma, and at necropsy cysts containing cestode larvae were observed. A third meerkat had a subcutaneous nodule surgically removed, which contained similar larvae. The third animal died years later, and had numerous cestode larvae in the pleural and peritoneal cavities. The larvae were morphologically identified as plerocercoids of diphyllobothriidean cestodes. On necropsy, multiple nodules, ranging in size from 2.5 to 3.0 cm, were observed in the subcutaneous tissue and muscles. Multifocally, separating skeletal muscle fibers were longitudinal and transversal sections of cestode larva. Histologically, parasitic cysts contained large numbers of neutrophils and macrophages, admixed with proteinaceous material. Molecular and phylogenetic analyses confirmed that specimens from one of the meerkats belonged to the genus Spirometra and was closely related to Spirometra plerocercoids isolated from a snake from the United States and wild felids from South America. Meerkats likely became infected by ingesting infected second intermediate hosts, such as amphibians and reptiles that may have entered the exhibit. Management practices that minimize access of meerkats and other susceptible hosts to intermediate hosts should be implemented.
- Published
- 2020
- Full Text
- View/download PDF
9. On the origin of the Egyptian mongoose in the Iberian Peninsula: is there room for reasonable doubt?
- Author
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Barros, Tânia, Fonseca, Carlos, and Ferreira, Eduardo
- Subjects
- *
MONGOOSES , *PENINSULAS , *BIOLOGICAL evolution , *EGYPTIANS , *ARCHAEOLOGICAL finds - Abstract
The Egyptian mongoose is a carnivore distributed in Africa, Middle East and Iberian Peninsula (IP). The species has always been considered exotic in the IP, with its presence attributed to Man as a consequence of the Muslim Occupations. This view is still not consensual. Genetic studies suggested that the species may have naturally dispersed to Iberia during Late Pleistocene, by crossing the Strait of Gibraltar. Recent studies concluded that the species was previously introduced by the Romans, but did not naturally disperse millennia before. The ongoing discussion about the origin of Egyptian mongoose in Europe implies that both theses—natural dispersion and anthropogenic introduction—are mutually exclusive, which we argue may not be the case. Considering that there are still gaps about the species' origin, we attempted to review the current state of knowledge on the species origin in the IP, discuss the arguments in favor and against of all hypotheses and suggest future research to clarify them. Instead of refuting any of the assumptions on the species' origin in Europe, we hypothesize the merge of all hypotheses. Archaeological findings coupled with historical records and genetic evidences push further the hypothesis of multiple introductions of the species from Pre-historical Periods, to Classical Antiquity and the Early Middle Ages. We consider there is room to question the species' exotic nature in the IP, thus its status should be reviewed. Nevertheless, further studies are needed for a more consistent assessment of the origin and status of the Egyptian mongoose in the IP. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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10. First mitochondrial genome of the Egyptian mongoose Herpestes ichneumon (Carnivora, Herpestidae)
- Author
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Liliane Boukhdoud, Lillian D Parker, Nancy Rotzel McInerney, Carole Saliba, Rhea Kahale, Jesús E Maldonado, and Magda Bou Dagher Kharrat
- Subjects
egyptian mongoose ,mitochondrial genome ,herpestidae ,herpestes ichneumon ,historical ,dna ,eastern mediterranean region ,Genetics ,QH426-470 - Abstract
The Egyptian mongoose, Herpestes ichneumon, is the only extant mongoose in Europe, with populations still distributed in Africa and the Middle East. In this study, we present the first mitochondrial genome sequence of Herpestes ichneumon and we investigate its phylogenetic position within Feliformia suborder. The resultant mitogenome sequence is 16,775 bps, composed of a conserved set of 37 genes containing 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. Our results represent a valuable resource for further phylogeographical studies.
- Published
- 2021
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11. Biogeography of the Egyptian mongoose Herpestes ichneumon (Linnaeus, 1758) in Africa, with first records for Laikipia County, central Kenya.
- Author
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Ngatia, Dedan Kabuu, Webala, Paul Waswa, Mware, Mugo J., Butynski, Thomas M., Jong, Yvonne A., and Ferguson, Adam Wesley
- Subjects
- *
MONGOOSES , *BIOGEOGRAPHY , *ECOLOGICAL niche , *SPECIES distribution , *ECOLOGICAL models - Abstract
The paucity of studies on Egyptian mongoose Herpestes ichneumon (Linnaeus, 1758) in Africa highlights the need for baseline information on the geographic range of this species as well as factors that may determine its distribution. This study presents eight novel locality records of H. ichneumon in Laikipia County, central Kenya, addresses questions on the species' distribution in Africa, and predicts environmental (climatic) suitability across its range. From a total of 4,822 H. ichneumon occurrence records, we used 4,432 georeferenced records to generate distribution maps, conduct ecological niche modelling, and identify environmental limits for this species across its range with a focus on Africa. 20% of all records originate from continental Africa, including 121 records for Kenya. Despite extensive field research and predicted habitat suitability, H. ichneumon has not been previously reported in Laikipia County. Our niche models, however, predicted parts of Laikipia to be environmentally suitable for H. ichneumon. Similarly, our new distribution maps show extended geographic ranges both in Laikipia and Kenya as compared to the 2016 IUCN map. The eight Laikipia records underscore the limited knowledge for this species, its distribution, and its environmental requirements in Africa. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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12. Camera trap survey of mammals in Cleopatra’s Needle Critical Habitat in Puerto Princesa City, Palawan, Philippines
- Author
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Paris N. Marler, Solomon Calago, Mélanie Ragon, and Lyca Sandrea G Castro
- Subjects
activity patterns ,camera trap ,carnivores ,felidae ,herpestidae ,hystricidae ,mephitidae ,mustelidae ,viverridae ,Ecology ,QH540-549.5 ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
A camera trap survey was conducted in the recently protected Cleopatra’s Needle Critical Habitat (CNCH) in Puerto Princesa City, Palawan, Philippines from February to May 2015 at 39 camera trap sites. A bait of common pig’s blood was used at 36 sites, while the three remaining sites were surveyed without a bait and monitored a stream with a latrine site or mud bath with tracks. Seven native species were detected and three of these species were endemic to the island province. Species included: Common Palm Civet Paradoxurus philippinensis, Palawan Porcupine Hystrix pumila, Collared Mongoose Urva semitorquata, Palawan Stink Badger Mydaus marchei, Palawan Leopard Cat Prionailurus bengalensis heaneyi, Asian Small-clawed Otter Aonyx cinereus, and Malay Civet Viverra tangalunga. Analysis of the activity patterns of the three most commonly captured species revealed predominantly nocturnal activity for the Common Palm Civet, Palawan Porcupine, and Palawan Stink Badger. The Philippine Palm Civet showed occasional diurnal activity. The seven photo-captured species appeared most common, or were at the least recorded, below 750m. Five species (the Philippine Palm Civet, Palawan Porcupine, Collared Mongoose, Palawan Stink Badger, and Palawan Leopard Cat) were also recorded above 1000m. The CNCH supports two threatened species, the Palawan Porcupine and the Asian Small-clawed Otter, which are listed as Vulnerable by the IUCN, and the Collared Mongoose is listed as Near Threatened. The Palawan Leopard Cat is considered Vulnerable within the Philippines, although it has yet to be assessed by the IUCN. This documentation highlights the biodiversity significance within the newly protected critical habitat and the need to support ongoing conservation efforts within the critical habitat.
- Published
- 2019
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13. Neoplasia ovárica (Luteoma) en una Suricata (Suricata suricatta)
- Author
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Marcela Rojas-Bustamante, Juliana Peña-Stadlin, Diana Buitrago-Grisales, and Ana María Henao-Duque
- Subjects
Herpestidae ,OVH ,problemas hormonales ,quistes ováricos ,zoológico ,ultrasonografía ,Veterinary medicine ,SF600-1100 - Abstract
En este artículo se describe el caso de una Suricata suricatta de 5 años, hembra, nacida bajo cuidado humano en el Zoológico de Cali, Colombia, que presentó reporte de comportamiento anormal. Al examen clínico se observó alopecia multifocal y simétrica bilateral con costras. Se realizó una evaluación ultrasonográfica que determinó la presencia de quistes ováricos. Como alternativa terapéutica se realizó una ovariohisterctomía (OVH) con biopsia escisional de ambos ovarios, que fueron remitidos al laboratorio de patología. Los hallazgos histopatológicos concluyeron una neoplasia del ovario izquierdo consistente con un Luteoma. El ovario derecho no presentó lesiones significativas. Durante la cirugía se tomaron muestras de sangre que indicaron que el paciente presentaba anemia regenerativa, química sanguínea con aumento del BUN y proteínas totales asociados a una hiperglobulinemia indicativos de un proceso inflamatorio crónico. La paciente se recuperó satisfactoriamente de la cirugía y tras dos semanas posteriores al procedimiento, las lesiones dermatológicas remitieron, así como los problemas de comportamiento previamente reportados.
- Published
- 2021
- Full Text
- View/download PDF
14. An African urban mesocarnivore: Navigating the urban matrix of Durban, South Africa
- Author
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Jarryd P. Streicher, Tharmalingam Ramesh, and Colleen T. Downs
- Subjects
Herpestidae ,Urban land-use ,GPS telemetry ,Small carnivore ,Home range ,Habitat use ,Ecology ,QH540-549.5 - Abstract
Urbanisation is rapidly transforming natural habitats with the potential to benefit synanthropic species, especially mesocarnivore species. Knowledge of the spatio-temporal ecology of mongoose species in an urban matrix is limited. Consequently, we examined the home range and habitat use of water mongoose (Atilax paludinosus, n = 14) in an urban matrix landscape. Mongooses were collared and radio-tracked using Global Positioning System (GPS)-Ultra high frequency (UHF) transmitters between July 2018 and October 2019 in the Upper Highway area’s urban matrix, eThekwini Municipality, Durban, KwaZulu-Natal, South Africa. Habitat selection for water mongoose indicated that the species avoided built-up urban areas favouring fragments of forest and bushland habitat types close to natural water sources within the urban mosaic. The adaptability and generalist nature of water mongoose has facilitated their persistence in the urban mosaic. Variability in the home range size and habitat use of individuals of the water mongooses highlights their ability to adapt to anthropogenically modified landscape, yet they were highly dependent on natural refugia in this urban matrix.
- Published
- 2021
- Full Text
- View/download PDF
15. Neoplasia ovárica (Luteoma) en una Suricata (Suricata suricatta).
- Author
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Rojas-Bustamante, Marcela, Peña-Stadlin, Juliana, Buitrago, Diana, and Henao-Duque, Ana María
- Subjects
- *
OVARIAN cysts , *INFLAMMATION , *OVARIES , *MEERKAT , *BLOOD sampling - Abstract
This article describes the case of a 5-year-old female meerkat born under human care at the Cali Zoo in Colombia, which presented a report of abnormal behavior. Upon clinical examination, multifocal and symmetrical bilateral scabbed alopecia was observed. An ultrasonographic evaluation was carried out determining the presence of ovarian cysts. As a therapeutic alternative, an ovariohysterectomy (OVH) was performed with an excisional biopsy of both ovaries, which were sent to the pathology laboratory. The histopathological findings concluded a neoplasm of the left ovary consistent with a Luteoma. Nonetheless, the right ovary did not present significant lesions. During the surgery, blood samples were taken which indicated that the patient presented regenerative anemia, blood chemistry with increased BUN and total proteins associated with hyperglobulinemia indicative of a chronic inflammatory process. The patient recovered satisfactorily from the surgery and after two weeks following the procedure, the dermatological lesions receded, as well as the behavioral problems previously reported. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
16. Cognitive flexibility in urban yellow mongooses, Cynictis penicillata.
- Author
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Müller M and Pillay N
- Subjects
- Humans, Animals, Reversal Learning, South Africa, Cognition, Herpestidae
- Abstract
Cognitive flexibility enables animals to alter their behaviour and respond appropriately to environmental changes. Such flexibility is important in urban settings where environmental changes occur rapidly and continually. We studied whether free-living, urban-dwelling yellow mongooses, Cynictis penicillata, in South Africa, are cognitively flexible in reversal learning and attention task experiments (n = 10). Reversal learning was conducted using two puzzle boxes that were distinct visually and spatially, each containing a preferred or non-preferred food type. Once mongooses learned which box contained the preferred food type, the food types were reversed. The mongooses successfully unlearned their previously learned response in favour of learning a new response, possibly through a win-stay, lose-shift strategy. Attention task experiments were conducted using one puzzle box surrounded by zero, one, two or three objects, introducing various levels of distraction while solving the task. The mongooses were distracted by two and three distractions but were able to solve the task despite the distractions by splitting their attention between the puzzle box task and remaining vigilant. However, those exposed to human residents more often were more vigilant. We provide the first evidence of cognitive flexibility in urban yellow mongooses, which enables them to modify their behaviour to urban environments., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
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17. DILATED CARDIOMYOPATHY IN SLENDER-TAILED MEERKATS ( SURICATA SURICATTA ) UNDER HUMAN CARE.
- Author
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Anderson KM, Nadolny K, Mylniczenko ND, Estrada AH, Bissett LE, and Jones AE
- Subjects
- Humans, Cats, Animals, Echocardiography veterinary, Radiography, Taurine, Cardiomyopathy, Dilated veterinary, Herpestidae, Cat Diseases
- Abstract
Meerkats ( Suricata suricatta ) housed at two accredited zoological institutions in the United States were evaluated via echocardiography, thoracic radiography, and blood biomarkers-taurine and feline N-terminal pro-B-type natriuretic peptide-to determine the prevalence and severity of dilated cardiomyopathy (DCM) in both populations. In total, 24 meerkats were evaluated and 7 were diagnosed with DCM based on the following parameters: left ventricular internal diameter at end diastole > 1.30 cm, left ventricular internal diameter at end systole > 1.10 cm, and a fractional shortening of <18%. Echocardiographic parameters were identified and reported for normal and affected meerkats, whereas thoracic radiographs were not useful for screening for DCM. Meerkats with DCM were treated with pimobendan and/or benazepril and furosemide if indicated. Seven meerkats died during the study period, with the majority exhibiting myocardial fibrosis. Of the blood parameters tested, elevated taurine levels were associated with DCM. Further research is necessary to characterize the etiology of DCM in meerkats.
- Published
- 2024
- Full Text
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18. Sparganosis due to Spirometra sp. (Cestoda; Diphyllobothriidae) in captive meerkats (Suricata suricatta).
- Author
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McHale, Brittany, Callahan, R. Trey, Paras, Kelsey L., Weber, Martha, Kimbrell, Lisa, Velázquez-Jiménez, Yanet, McManamon, Rita, Howerth, Elizabeth W., and Verocai, Guilherme G.
- Abstract
We report three cases of sparganosis due to plerocercoids of the tapeworm Spirometra sp. in captive meerkats (Suricata suricatta) from a zoo exhibit in the southeastern United States. Two meerkats were euthanized, one due to an uncontrollable seizure and the other due to trauma, and at necropsy cysts containing cestode larvae were observed. A third meerkat had a subcutaneous nodule surgically removed, which contained similar larvae. The third animal died years later, and had numerous cestode larvae in the pleural and peritoneal cavities. The larvae were morphologically identified as plerocercoids of diphyllobothriidean cestodes. On necropsy, multiple nodules, ranging in size from 2.5 to 3.0 cm, were observed in the subcutaneous tissue and muscles. Multifocally, separating skeletal muscle fibers were longitudinal and transversal sections of cestode larva. Histologically, parasitic cysts contained large numbers of neutrophils and macrophages, admixed with proteinaceous material. Molecular and phylogenetic analyses confirmed that specimens from one of the meerkats belonged to the genus Spirometra and was closely related to Spirometra plerocercoids isolated from a snake from the United States and wild felids from South America. Meerkats likely became infected by ingesting infected second intermediate hosts, such as amphibians and reptiles that may have entered the exhibit. Management practices that minimize access of meerkats and other susceptible hosts to intermediate hosts should be implemented. Image 1 • This is the first report of sparganosis in meerkats. • Parasite identification was based on integrated classical and molecular approaches. • We highlight the importance of prevention against parasitic infections in zoos. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
19. Small carnivores of Wayanad Wildlife Sanctuary, the southern Western Ghats, India
- Author
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E. R. Sreekumar and P. O. Nameer
- Subjects
endemism ,felidae ,herpestidae ,iucn red list ,mustelidae ,nilgiri biosphere reserve ,protected area ,threatened ,viverridae ,Ecology ,QH540-549.5 ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
The small carnivores of Wayanad Wildlife Sanctuary were surveyed using camera traps. The study was conducted between November 2016 and February 2017 at 111 camera trap locations. Twenty-five mammal species were recorded, including nine small carnivores from the Mustelidae, Viverridae, Herpestidae and Felidae families. Species included the Asian Small-clawed Otter Aonyx cinereus, Brown Palm Civet Paradoxurus jerdoni, Common Palm Civet Paradoxurus hermaphroditus, Small Indian Civet Viverricula indica, Indian Grey Mongoose Herpestes edwardsii, Ruddy Mongoose Herpestes smithii, Stripe-necked Mongoose Herpestes vitticollis, Jungle Cat Felis chaus and Leopard Cat Prionailurus bengalensis. The most common small carnivore was Viverricula indica, followed by Herpestes vitticollis and Paradoxurus hermaphroditus. Time activity patterns revealed that the viverrids were nocturnal while the herpestids were diurnal. The sanctuary supports one endemic species of small carnivore, Paradoxurus jerdoni, and one threatened species, Aonyx cinereus, which is Vulnerable according to the IUCN Red List of Threatened Species. This documentation highlights the biodiversity significance of Wayanad Wildlife Sanctuary and the Nilgiri mountain range in the Western Ghats.
- Published
- 2018
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20. Neuroanatomical and Immunohistological Study of the Main and Accessory Olfactory Bulbs of the Meerkat (Suricata suricatta)
- Author
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Mateo V. Torres, Irene Ortiz-Leal, Andrea Ferreiro, José Luis Rois, and Pablo Sanchez-Quinteiro
- Subjects
meerkat ,Suricata suricatta ,Herpestidae ,Carnivora ,olfactory system ,vomeronasal system ,Veterinary medicine ,SF600-1100 ,Zoology ,QL1-991 - Abstract
We approached the study of the main (MOB) and accessory olfactory bulbs (AOB) of the meerkat (Suricata suricatta) aiming to fill important gaps in knowledge regarding the neuroanatomical basis of olfactory and pheromonal signal processing in this iconic species. Microdissection techniques were used to extract the olfactory bulbs. The samples were subjected to hematoxylin-eosin and Nissl stains, histochemical (Ulex europaeus agglutinin, Lycopersicon esculentum agglutinin) and immunohistochemical labelling (Gαo, Gαi2, calretinin, calbindin, olfactory marker protein, glial fibrillary acidic protein, microtubule-associated protein 2, SMI-32, growth-associated protein 43). Microscopically, the meerkat AOB lamination pattern is more defined than the dog’s, approaching that described in cats, with well-defined glomeruli and a wide mitral-plexiform layer, with scattered main cells and granular cells organized in clusters. The degree of lamination and development of the meerkat MOB suggests a macrosmatic mammalian species. Calcium-binding proteins allow for the discrimination of atypical glomerular subpopulations in the olfactory limbus between the MOB and AOB. Our observations support AOB functionality in the meerkat, indicating chemosensory specialization for the detection of pheromones, as identified by the characterization of the V1R vomeronasal receptor family and the apparent deterioration of the V2R receptor family.
- Published
- 2021
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21. Morphological aspects of the brain in the Indian grey mongoose (Herpestes Edwardsii).
- Author
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Rasouli, Babak, Gholami, Soghra, and Kamali, Younes
- Subjects
MONGOOSES ,HERPESTIDAE ,ZOOLOGY ,CARNIVOROUS animals ,PUFFERS (Fish) - Abstract
Mongoose is a common name for 29 to 34 species in 14 genera of the family Herpestidae which are found in vast areas of southwestern Asia, especially southern Iran. Anatomical and morphological studies of the brain have always been of interest to the researchers in the field of anatomy, due to its high importance in various fields of veterinary and zoology. Because of the lack of information about the brain structure in wild carnivores, the present study was conducted to better understand the morphological features in Indian grey mongoose. For this purpose, 4 carcasses of adult mongooses were used. They were found in different areas of Fars province. The mongooses had died due to natural causes. The brain was carefully separated from the skull and the measurements and observations were made on different parts of it. In this study, it wa found that the brain's structure has an ovoid appearance. Also, distinguished olfactory bulbs, deep transverse and longitudinal fissures, and relatively large cerebellar vermis were observed. According to the current study, it can be concluded that the anatomical features of the brain in the mongoose are similar to those of other carnivores and are in perfect harmony with the sensory and motor capabilities of the animal. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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22. Fate of the Mongooses and the Genet (Carnivora) in Mediterranean Europe: None Native, All Invasive?
- Author
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Gaubert, Philippe and Angelici, Francesco M., editor
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- 2016
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23. Severe Fever with Thrombocytopenia Syndrome Virus RNA in Ticks from Wild Mongooses in Okinawa Prefecture, Japan
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Yumani, Kuba, Yasuhito, Azama, Hisako, Kyan, Yoshimune, Fukuchi, Noriyuki, Maeshiro, Tetsuya, Kakita, Masato, Miyahira, Tsuyoshi, Kudeken, and Minoru, Nidaira
- Subjects
Phlebovirus ,Microbiology (medical) ,Infectious Diseases ,Ixodes ,Ixodidae ,Japan ,Severe Fever with Thrombocytopenia Syndrome ,Herpestidae ,Animals ,RNA ,General Medicine ,Bunyaviridae Infections - Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging zoonotic tick-borne disease caused by SFTS virus (SFTSV). SFTSV has a wide spectrum of animal hosts and is considered to circulate in an enzootic tick-vertebrate-tick cycle. A previous seroepidemiological study showed the presence of anti-SFTSV antibodies in wild mongooses (Herpestes auropunctatus) and indicated that outdoor activity was associated with an increased risk of tick bites among Okinawa residents. However, the association of SFTSV with wild mongooses and ticks remains unclear. To understand the association between ticks and mongooses with respect to the SFTSV enzootic cycle, we investigated the presence of SFTSV RNA in ticks collected from wild mongooses on the Okinawa Island. A total of 638 ticks belonging to 2 genera and 3 species (Haemaphysalis hystricis, Haemaphysalis formosensis, and Ixodes granulatus) were collected from 22 wild mongooses from 2016 to 2021. SFTSV RNA was detected in two pools of H. hystricis larvae collected from a wild mongoose in the central area of the main island of Okinawa in 2017. Although the prevalence of SFTSV in ticks from wild mongooses is low, endemic circulation of the virus in Okinawa should be carefully monitored to prevent future infections.
- Published
- 2022
24. Molecular Survey and Genetic Diversity of Bartonella spp. in Small Indian Mongooses (Urva auropunctata) and Their Fleas on Saint Kitts, West Indies
- Author
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Alex Mau, Ana Cláudia Calchi, Pedro Bittencourt, Maria Jose Navarrete-Talloni, Caroline Sauvé, Anne Conan, Marcos Rogério André, Patrick Kelly, and Ananda Müller
- Subjects
Ctenocephalides felis ,Bartonella henselae ,‘Candidatus Bartonella kittensis’ ,haplotypes ,Herpestidae ,Biology (General) ,QH301-705.5 - Abstract
This study aimed to molecularly survey and evaluate the genetic diversity of Bartonella spp. in mongooses and their fleas from St. Kitts. Spleen (n = 54), blood (n = 71), and pooled flea samples, all identified as Ctenocephalides felis (n = 53), were submitted to TaqMan real-time quantitative PCR (qPCR) targeting Bartonella-nuoG fragment (84 bp). Positive samples underwent further conventional PCR assays targeting five loci (gltA, rpoB, fstZ, nuoG, and ITS), subsequent sequencing, and phylogenetic and haplotype analyses. The overall occurrence of Bartonella spp. in mongooses and fleas was 51.2% (64/125 [95% CI (42.1–60.2%)]) and 62.3% (33/53) [95% CI (47.9–75.2%)]), respectively. From samples sequenced across the five loci, 50.8% (33/65) were identified as Bartonella henselae, 26.2% (17/65) were 96.74–99.01% similar by BLAST analysis to an unidentified Bartonella sp. previously reported in Japanese badgers (Meles anakuma), and 23.1% (15/65) were co-infected with both species. Nucleotide polymorphism analysis showed low diversity amongst haplotypes but did concur with phylogenetic analysis, placing the unidentified species in a separate clade from B. henselae by multiple mutational events. Our data confirms that mongooses and Ctenocephalides felis fleas collected from them are not only potential reservoirs for B. henselae but also a novel Bartonella sp. which we propose be called ‘Candidatus Bartonella kittensis’.
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- 2021
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25. Small carnivores of the montane forests of Eravikulam National Park in the Western Ghats, India
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S. Nikhil and P. O. Nameer
- Subjects
camera trapping ,endemism ,eravikulam national park ,felidae ,herpestidae ,idukki ,iucn red list ,kerala ,mustelidae ,viverridae. ,Ecology ,QH540-549.5 ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
The study of small carnivores of the montane forests of Eravikulam National Park in the southern Western Ghats, India recorded nine species of small carnivores using the camera trapping technique. These include three species of Mongoose (Herpestidae), two species each of lesser cats (Felidae) and civets (Viverridae), one species each of Otter and Marten (Mustelidae). They are Stripe-necked Mongoose Herpestes vitticollis, Brown Mongoose Herpestes fuscus, Indian Grey Mongoose Herpestes edwardsii, Jungle Cat Felis chaus, Leopard Cat Prionailurus bengalensis, Common Palm Civet Paradoxurus hermaphrodites, Small Indian Civet Viverricula indica, Asian Small-clawed Otter Aonyx cinereus, and Nilgiri Marten Martes gwatkinsii. It is interesting to note that the felines (lesser cats) are the more common small carnivores in the montane forests. Felis chaus was the most abundant small carnivore, which is followed by Prionailurus bengalensis and Herpestes vitticollis. Two species are Vulnerable as per the IUCN Red List, viz., Martes gwatkinsii and Aonyx cinereus.
- Published
- 2017
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26. The complete mitochondrial genome of the meerkat (Suricata suricatta) and its phylogenetic relationship with other feliform species
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Lorena Derežanin, Jörns Fickel, and Daniel Förster
- Subjects
mitogenome ,herpestidae ,suricata suricatta ,phylogenetics ,feliformia ,Genetics ,QH426-470 - Abstract
The meerkat, Suricata suricatta, is a highly social member of the mongoose family (Herpestidae) and the only extant species of the genus Suricata. We present the first complete mitochondrial genome of the meerkat, assembled with a seed-and-extend algorithm using three closely related species as references. Phylogenetic analyses using 22 mitochondrial genome sequences confirm the position of meerkat within the Herpestidae family and the Feliformia, a suborder of Carnivora, with high support values. This position is in good agreement with formerly conducted studies based on a small number of mitochondrial and nuclear gene fragments. Our complete mitochondrial genome represents a valuable resource for further phylogenetic studies, especially of the underrepresented members of the Herpestidae family.
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- 2020
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27. Portion size matters: Carrion ecology lessons for medicolegal death investigations-A study in Cape Town, South Africa.
- Author
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Spies MJ, Finaughty DA, and Gibbon VE
- Subjects
- Animals, Swine, South Africa, Portion Size, Postmortem Changes, Feeding Behavior, Ecosystem, Herpestidae
- Abstract
Forensic taphonomic studies are regionally specific and improve time since death estimates for medico-legal casework. Within forensic taphonomy and carrion ecology, vertebrate scavengers are under-researched with many studies conducted using multiple, unclothed carcasses. This is a forensically unrealistic experimental design choice with unknown impact. The effect of variation in carrion biomass on the decomposition ecosystem, particularly where vertebrate scavengers are concerned, requires clarification. To assess the effect of carrion biomass load on vertebrate scavenging and decomposition rate, seasonal baseline data for single, clothed ~60 kg porcine carcasses were compared to clothed multiple-carcass deployments, in a forensically relevant habitat of Cape Town, South Africa. Decomposition was tracked via weight loss and bloat progression and scavenging activity via motion-activated cameras. The single carcasses decayed more quickly, particularly during the cooler, wetter winter, strongly correlated with concentrated Cape gray mongoose (Galerella pulverulenta) scavenging activity. On average and across seasons, the single carcasses lost 68% of their mass by day 32 (567 accumulated degree days [ADD]), compared to 80 days (1477 ADD) for multi-carcass deployments. The single carcasses experienced substantially more scavenging activity, with longer visits by single and multiple mongooses, totaling 53 h on average compared to 20 h for the multi-carcass deployments. These differences in scavenging activity and decay rate demonstrate the impact of carrion biomass load on decomposition for forensic taphonomy research. These findings need corroboration. However, forensic realism requires consideration in taphonomic study design. Longitudinally examining many single carcasses may produce more forensically accurate, locally appropriate, and usable results., (© 2023 The Authors. Journal of Forensic Sciences published by Wiley Periodicals LLC on behalf of American Academy of Forensic Sciences.)
- Published
- 2024
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28. Home range overlap between small Indian mongooses and free roaming domestic dogs in Puerto Rico: implications for rabies management.
- Author
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Sauvé CC, Berentsen AR, Llanos SF, Gilbert AT, and Leighton PA
- Subjects
- Female, Male, Animals, Dogs, Humans, Puerto Rico epidemiology, Homing Behavior, Animals, Domestic, Rabies epidemiology, Rabies veterinary, Herpestidae
- Abstract
The small Indian mongoose (Urva auropunctata) is the primary terrestrial wildlife rabies reservoir on at least four Caribbean islands, including Puerto Rico. In Puerto Rico, mongooses represent a risk to public health, based on direct human exposure and indirectly through the transmission of rabies virus to domestic animals. To date, the fundamental ecological relationships of space use among mongooses and between mongooses and domestic animals remain poorly understood. This study is the first to report mongoose home range estimates based on GPS telemetry, as well as concurrent space use among mongooses and free roaming domestic dogs (FRDD; Canis lupus familiaris). Mean (± SE) home range estimates from 19 mongooses in this study (145 ± 21 ha and 60 ± 14 ha for males and females, respectively) were greater than those reported in prior radiotelemetry studies in Puerto Rico. At the scale of their home range, mongooses preferentially used dry forest and shrubland areas, but tended to avoid brackish water vegetation, salt marshes, barren lands and developed areas. Home ranges from five FRDDs were highly variable in size (range 13-285 ha) and may be influenced by availability of reliable anthropogenic resources. Mongooses displayed high home range overlap (general overlap index, GOI = 82%). Home range overlap among mongooses and FRDDs was intermediate (GOI = 50%) and greater than home range overlap by FRDDs (GOI = 10%). Our results provide evidence that space use by both species presents opportunities for interspecific interaction and contact and suggests that human provisioning of dogs may play a role in limiting interactions between stray dogs and mongooses., (© 2023. The Author(s).)
- Published
- 2023
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29. Enhanced antioxidant, tyrosinase inhibition, and anti-inflammatory activities of Praeparatum mungo and three of its derivatives.
- Author
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Chang TC, Cao JL, Lin YS, and Huang SL
- Subjects
- Animals, Monophenol Monooxygenase, Plant Extracts pharmacology, Plant Extracts chemistry, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents chemistry, Nitric Oxide, Antioxidants pharmacology, Antioxidants chemistry, Herpestidae
- Abstract
The main objective of this study is to explore the functions of Praeparatum mungo (PM) and three of its derivatives, Praeparatum mungo/turmeric (PM/T), Praeparatum mungo/bromelain (PM/B), and Praeparatum mungo/inorganic elements (PM/IE). The results indicated that additives included in the fermentation process of PM enhanced PM's antioxidant properties. PM/B exhibited the highest total phenolic content (19.18 ± 0.46 mg gallic acid equivalent/g), DPPH free radical scavenging activity, and ferric reducing power. PM/IE exhibited the highest ABTS free radical scavenging activity and chelating ferrous ion activity. PM/T exhibited the best inhibitory tyrosinase activity. The 625 μg/mL PM extract can extensively reduce nitric oxide production of RAW264.7 macrophages stimulated by 1 μg/mL LPS and exhibited no cytotoxicity for anti-inflammatory applications. Additives in PM natural fermentation process can enhance antioxidant, tyrosinase inhibition, and anti-inflammatory properties of PM for future applications., (© 2023. The Author(s).)
- Published
- 2023
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30. Pathology and causes of death in captive meerkats ( Suricata suricatta ).
- Author
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Martí-García B, Priestnall SL, and Suárez-Bonnet A
- Subjects
- Animals, Cause of Death, Herpestidae, Foreign Bodies veterinary
- Abstract
Background: Meerkats ( Suricata suricatta ) are endemic carnivores of southern Africa and, although currently listed as 'least concern' by the International Union for Conservation of Nature (IUCN) red list, there is evidence of a significant decrease in wild populations mainly attributed to effects of climate change. Little is known about diseases associated with mortality in captive meerkats., Aim: To characterise macroscopic and microscopic lesions that accounted for the death or euthanasia in a series of captive meerkats., Material and Methods: Eight captive meerkats submitted for post-mortem examination between 2018 and 2022., Results: Three animals died unexpectedly without clinical signs, 2 exhibited neurological signs, 2 collapsed after con-specific fighting and 1 showed gastrointestinal signs. Common pathological findings of this study that may be related to the death of captive meerkats included foreign bodies (trichobezoars or plastic materials) within the alimentary tract, traumatic penetrating injuries or starvation associated with abnormal social behaviours (bullying and con-specific attacks), verminous pneumonia and systemic atherosclerosis. Common incidental findings included pulmonary edema and congestion, cholesterol granulomas, pulmonary adenomas and vertebral spondylosis., Conclusions: Non-infectious diseases outreach infectious diseases as causes of mortality in captive meerkats including, foreign bodies within the alimentary tract, con-specific attacks and systemic atherosclerosis, which is described for the first time. These data should raise concern about appropriate husbandry (e.g. environmental enrichment, cleaning of facilities and diet formulation) by zookeepers and emphasise the need for further study of meerkat mortality in both captive and wild populations.
- Published
- 2023
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31. CAMERA TRAP SURVEY OF MAMMALS IN CLEOPATRA'S NEEDLE CRITICAL HABITAT IN PUERTO PRINCESA CITY, PALAWAN, PHILIPPINES.
- Author
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Marler, Paris N., Calago, Solomon, Ragon, Mélanie, and Castro, Lyca Sandrea G.
- Subjects
MAMMALS ,ENDANGERED species ,MONGOOSES ,BADGERS ,OTTERS - Abstract
A camera trap survey was conducted in the recently protected Cleopatra's Needle Critical Habitat (CNCH) in Puerto Princesa City, Palawan, Philippines from February to May 2015 at 39 camera trap sites. A bait of common pig's blood was used at 36 sites, while the three remaining sites were surveyed without a bait and monitored a stream with a latrine site or mud bath with tracks. Seven native species were detected and three of these species were endemic to the island province. Species included: Common Palm Civet Paradoxurus philippinensis, Palawan Porcupine Hystrix pumila, Collared Mongoose Urva semitorquata, Palawan Stink Badger Mydaus marchei, Palawan Leopard Cat Prionailurus bengalensis heaneyi, Asian Small-clawed Otter Aonyx cinereus, and Malay Civet Viverra tangalunga. Analysis of the activity patterns of the three most commonly captured species revealed predominantly nocturnal activity for the Common Palm Civet, Palawan Porcupine, and Palawan Stink Badger. The Philippine Palm Civet showed occasional diurnal activity. The seven photo-captured species appeared most common, or were at the least recorded, below 750m. Five species (the Philippine Palm Civet, Palawan Porcupine, Collared Mongoose, Palawan Stink Badger, and Palawan Leopard Cat) were also recorded above 1000m. The CNCH supports two threatened species, the Palawan Porcupine and the Asian Small-clawed Otter, which are listed as Vulnerable by the IUCN, and the Collared Mongoose is listed as Near Threatened. The Palawan Leopard Cat is considered Vulnerable within the Philippines, although it has yet to be assessed by the IUCN. This documentation highlights the biodiversity significance within the newly protected critical habitat and the need to support ongoing conservation efforts within the critical habitat. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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32. Leptospirosis with multiple organ dysfunction in a mongoose-scat-detection dog infected with Leptospira interrogans serogroup Hebdomadis, Okinawa, Japan
- Author
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Tetsuya, Kakita, Maki, Yamagishi, Sugao, Oshiro, Chisako, Oyakawa, Takashi, Nagamine, Tsuyoshi, Kudeken, Hisako, Kyan, and Nobuo, Koizumi
- Subjects
Leptospira ,Male ,General Veterinary ,Herpestidae ,Multiple Organ Failure ,Serogroup ,Anti-Bacterial Agents ,Dogs ,Japan ,Doxycycline ,Working Dogs ,Animals ,Ampicillin ,Leptospirosis ,Dog Diseases ,Leptospira interrogans - Abstract
A 2-year-old male mongoose-scat-detection dog was diagnosed with leptospirosis by urine PCR. The patient developed acute renal failure, hepatic dysfunction, and disseminated intravascular coagulation. Treatment with antibiotics was administered, including ampicillin and doxycycline, and supportive care management was provided. Seroconversion against serogroup Hebdomadis was observed on day 8. The leptospiral gene flaB was detected only in urine collected on day 1, from which Leptospira interrogans ST329 was identified by multilocus sequence typing using seven housekeeping genes. L. interrogans serogroup Hebdomadis ST329 has been isolated from mongooses and humans in Okinawa, Japan. This patient received early treatment with antibiotics, which may have contributed to the early recovery of renal function and removal of L. interrogans from kidney tissue.
- Published
- 2022
33. First mitochondrial genome of the Egyptian mongoose Herpestes ichneumon (Carnivora, Herpestidae).
- Author
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Boukhdoud, Liliane, Parker, Lillian D., McInerney, Nancy Rotzel, Saliba, Carole, Kahale, Rhea, Maldonado, Jesús E., and Dagher Kharrat, Magda Bou
- Subjects
MONGOOSES ,CARNIVORA ,MITOCHONDRIA ,TRANSFER RNA ,GENOMES ,EGYPTIANS - Abstract
The Egyptian mongoose, Herpestes ichneumon, is the only extant mongoose in Europe, with populations still distributed in Africa and the Middle East. In this study, we present the first mitochondrial genome sequence of Herpestes ichneumon and we investigate its phylogenetic position within Feliformia suborder. The resultant mitogenome sequence is 16,775 bps, composed of a conserved set of 37 genes containing 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. Our results represent a valuable resource for further phylogeographical studies. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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34. Mad Dogs and Meerkats : A History of Resurgent Rabies in Southern Africa
- Author
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Karen Brown and Karen Brown
- Subjects
- Rabies--Africa, Southern--History--19th century, Herpestidae, Rabies--Africa, Southern--History--21st century, Rabies--Africa, Southern--Epidemiology, Canidae, Rabies--Africa, Southern--History--20th century
- Abstract
Through the ages, rabies has exemplified the danger of diseases that transfer from wild animals to humans and their domestic stock. In South Africa, rabies has been on the rise since the latter part of the twentieth century despite the availability of postexposure vaccines and regular inoculation campaigns for dogs.In Mad Dogs and Meerkats: A History of Resurgent Rabies in Southern Africa, Karen Brown links the increase of rabies to the HIV/AIDS epidemic. Her study shows that the most afflicted regions of South Africa have seen a dangerous rise in feral dog populations as people lack the education, means, or will to care for their pets or take them to inoculation centers. Most victims are poor black children. Ineffective disease control, which in part depends on management policies in neighboring states and the diminished medical and veterinary infrastructures in Zimbabwe, has exacerbated the problem.This highly readable book is the first study of rabies in Africa, tracing its history in South Africa and neighboring states from 1800 to the present and showing how environmental and economic changes brought about by European colonialism and global trade have had long-term effects.Mad Dogs and Meerkats is recommended for public health policy makers and anyone interested in human-animal relations and how societies and governments have reacted to one of the world's most feared diseases.
- Published
- 2011
35. Carnivora
- Author
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Werdelin, Lars, Dehghani, Reihaneh, Conard, Nicholas, Advisory editor, Fleagle, John G., Advisory editor, Hublin, Jean-Jacques, Advisory editor, MacPhee, Ross D. E., Advisory editor, Makovicky, Peter, Advisory editor, McBrearty, Sally, Advisory editor, Meng, Jin, Advisory editor, Plummer, Tom, Advisory editor, Silcox, Mary, Advisory editor, and Harrison, Terry, editor
- Published
- 2011
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- View/download PDF
36. A positive effect of cumulative intergroup threat on reproductive success.
- Author
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Morris-Drake A, Cobb B, Kern JM, and Radford AN
- Subjects
- Animals, Predatory Behavior, Seasons, Reproduction, Herpestidae
- Abstract
Outgroup conflict is a powerful selective force across all social taxa. While it is well documented that individual outgroup contests can have a range of direct and indirect fitness consequences, the cumulative pressure of outgroup threats could also potentially impact reproductive success. Here, we use long-term life-history data from a wild population of dwarf mongooses ( Helogale parvula ) to investigate how intergroup interaction (IGI) rate might influence breeding and offspring survival. IGI rate did not predict the number of litters produced in a season or the inter-litter interval. Unexpectedly, IGI rate was positively associated with the number of pups alive three months after emergence from the breeding burrow. This was not due to a difference in how many pups emerged but because those in groups experiencing more IGIs had a higher survival likelihood post-emergence. Detailed natural observations revealed that both IGI occurrence and the threat of intergroup conflict led to more sentinel behaviour by adults, probably reducing the predation risk to young. Our results contrast the previously documented negative effects of outgroup interactions on reproductive success and highlight the need to assess cumulative threat, rather than just the impact of physical contests, when considering outgroup conflict as a social driver of fitness.
- Published
- 2023
- Full Text
- View/download PDF
37. Caregiver's cognitive traits are associated with pup fitness in a cooperatively breeding mammal.
- Author
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Shelafoe C, Thompson FJ, Mwanguhya F, Kyabulima S, Businge R, Mwesige K, Sanderson JL, Cant MA, Marshall HH, and Vitikainen EIK
- Subjects
- Humans, Animals, Breeding, Phenotype, Weight Gain, Caregivers, Herpestidae
- Abstract
Studies across diverse taxa have revealed the importance of early life environment and parenting on characteristics later in life. While some have shown how early life experiences can impact cognitive abilities, very few have turned this around and looked at how the cognitive skills of parents or other carers during early life affect the fitness of young. In this study, we investigate how the characteristics of carers may affect proxies of fitness of pups in the cooperatively breeding banded mongoose (Mungos mungo). We gave adult mongooses a spatial memory test and compared the results to the success of the pups those individuals cared for. Our results show a tradeoff between speed and accuracy in the spatial memory task, with those individuals which were faster to move between cups in the test arena making more erroneous re-visits to cups that they had already checked for food. Furthermore, the accuracy of their carer predicted future survival, but not weight gain of the pups and the effect was contrary to expected, with pups that were cared for by less accurate individuals being more likely to survive to adulthood. Our research also provides evidence that while younger carers were less accurate during the test, the age of the carer did not have an impact on the chance of raising young that live to sexual maturity. Our findings suggest that banded mongoose carers' cognitive traits have fitness consequences for the young they care for, affecting the chance that these young live to maturity., (© 2023. Springer Nature Limited.)
- Published
- 2023
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38. RABIES VIRUS SEROSURVEY OF THE SMALL INDIAN MONGOOSE (URVA AUROPUNCTATA) ACROSS MULTIPLE HABITATS IN PUERTO RICO, 2014-21.
- Author
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Berentsen AR, Rivera-Rodriguez MJ, Torres-Toledo FB, Davis AJ, Chipman RB, and Gilbert AT
- Subjects
- Animals, Male, Female, Puerto Rico epidemiology, Seroepidemiologic Studies, Antibodies, Viral, Rabies virus, Rabies epidemiology, Rabies veterinary, Herpestidae, Rabies Vaccines
- Abstract
The small Indian mongoose (Urva auropuncata) is a rabies reservoir in Puerto Rico and accounts for over 70% of reported animal rabies cases annually. The presence of rabies virus-neutralizing antibodies (RVNA) is often used as a tool to measure exposure to rabies virus in wildlife populations. We conducted a serosurvey of mongooses at 11 sites representing six habitat types across Puerto Rico. We collected a serum sample from 464 individual mongooses during 2014-21. Overall, 80/464 (17.0%; 95% confidence interval, 14.1-20.9%; 55 male, 23 female, and two sexes not recorded) of individual mongooses sampled across all habitats were RVNA positive. The geometric mean (SD) RVNA titer for 80 unique seropositive animals was 0.58 (2.92) IU/mL. Our models indicated that the probability of mongooses being RVNA seropositive mostly varied by habitat, with some influence of sex in the individual-level analyses. Population-level RVNA seroprevalence is dynamic in mongoose populations, but these data may shed light on rabies virus transmission across regions to help inform rabies management activities in Puerto Rico., (© Wildlife Disease Association 2023.)
- Published
- 2023
- Full Text
- View/download PDF
39. Widespread convergent evolution of alpha-neurotoxin resistance in African mammals
- Author
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Danielle H. Drabeck, Jennifer Holt, and Suzanne E. McGaugh
- Subjects
Herpestidae ,Acclimatization ,Museums ,Neurotoxins ,Animals ,Lizards ,General Agricultural and Biological Sciences ,Agricultural and Biological Sciences (miscellaneous) - Abstract
Convergent evolution is central to the study of adaptation and has been used to understand both the limits of evolution and the diverse patterns and processes which result in adaptive change. Resistance to snake venom alpha-neurotoxins ( α NTXs) is a case of widespread convergence having evolved several times in snakes, lizards and mammals. Despite extreme toxicity of α NTXs, substitutions in its target, the nicotinic acetylcholine receptor (nAChR), prevent α NTX binding and render species resistant. Recently, the published meerkat (Herpestidae) genome revealed that meerkats have the same substitutions in nAChR as the venom-resistant Egyptian mongoose (Herpestidae), suggesting that venom-resistant nAChRs may be ancestral to Herpestids. Like the mongoose, many other species of feliform carnivores prey on venomous snakes, though their venom resistance has never been explored. To evaluate the prevalence and ancestry of α NTX resistance in mammals, we generate a dataset of mammalian nAChR using museum specimens and public datasets. We find five instances of convergent evolution within feliform carnivores, and an additional eight instances across all mammals sampled. Tests of selection show that these substitutions are evolving under positive selection. Repeated convergence suggests that this adaptation played an important role in the evolution of mammalian physiology and potentially venom evolution.
- Published
- 2022
40. Incidence and biomarkers of pregnancy, spontaneous abortion, and neonatal loss during an environmental stressor: Implications for female reproductive suppression in the cooperatively breeding meerkat.
- Author
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Dimac-Stohl, Kristin A., Davies, Charli S., Grebe, Nicholas M., Stonehill, Alexandra C., Greene, Lydia K., Mitchell, Jessica, Clutton-Brock, Tim, and Drea, Christine M.
- Subjects
- *
DIAGNOSIS of pregnancy , *BIOMARKERS , *MISCARRIAGE , *ENVIRONMENTAL health , *HERPESTIDAE , *MEERKAT , *DISEASE incidence , *REPRODUCTION - Abstract
Meerkats are group-living, insectivorous herpestids in which subordinate members provide extensive care for the dominant female's young. In contrast to some cooperative breeders, subordinate female meerkats are physiologically able to reproduce and occasionally do so successfully; their attempts are more frequently ‘suppressed’ via eviction or infanticide by the dominant female. Spontaneous abortion and neonatal loss occur with some regularity, further negatively impacting reproductive success. Here, we compared the reproductive outcomes and endocrine profiles, including of serum progesterone (P 4 ), serum estradiol (E 2 ), and fecal glucocorticoid metabolites (fGCm), of dominant and subordinate dams residing within their clans in the Kalahari Desert of South Africa. Our study spanned years of drought, which reduced insect abundance and represented a substantial environmental stressor. Meerkat pregnancies were identified at mid-term and culminated either in spontaneous abortions or full-term deliveries, after which pups were either lost prior to emergence from the natal den (usually within 2 days of birth) or emerged at 2–3 weeks. Neonatal loss exceeded fetal loss for all females, and contributed to narrowing the status-related disparity in female reproductive output seen during less arid periods. Although E 2 concentrations were significantly lower in subordinate than dominant females, they were sufficient to support gestation. Absolute E 2 concentrations may owe to androgenic precursors that also attain highest concentrations in dominant dams and may mediate aggression underlying female reproductive skew. Pregnancies terminating in fetal loss were marked by significantly lower P 4 concentrations in mid-gestation and modestly lower E 2 concentrations overall. Consistently high fGCm concentrations further increased across trimesters, particularly (but not consistently) in subordinates and in aborted pregnancies. Environmental stressors may modulate reproductive outcomes in meerkats through their influence on sex steroids and their effects on intragroup competition. The social and eco-physiological factors affecting intraspecific variation in reproductive output, even in obligate cooperative breeders, may be most apparent during extreme conditions, reflecting the benefits of long-term studies for assessing the impact of climate change. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
41. SMALL CARNIVORES OF WAYANAD WILDLIFE SANCTUARY, THE SOUTHERN WESTERN GHATS, INDIA.
- Author
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Sreekumar, E. R. and Nameer, P. O.
- Subjects
CARNIVOROUS animals ,ORIENTAL small-clawed otter ,WILDLIFE refuges - Abstract
The small carnivores of Wayanad Wildlife Sanctuary were surveyed using camera traps. The study was conducted between November 2016 and February 2017 at 111 camera trap locations. Twenty-five mammal species were recorded, including nine small carnivores from the Mustelidae, Viverridae, Herpestidae and Felidae families. Species included the Asian Small-clawed Otter Aonyx cinereus, Brown Palm Civet Paradoxurus jerdoni, Common Palm Civet Paradoxurus hermaphroditus, Small Indian Civet Viverricula indica, Indian Grey Mongoose Herpestes edwardsii, Ruddy Mongoose Herpestes smithii, Stripe-necked Mongoose Herpestes vitticollis, Jungle Cat Felis chaus and Leopard Cat Prionailurus bengalensis. The most common small carnivore was Viverricula indica, followed by Herpestes vitticollis and Paradoxurus hermaphroditus. Time activity patterns revealed that the viverrids were nocturnal while the herpestids were diurnal. The sanctuary supports one endemic species of small carnivore, Paradoxurus jerdoni, and one threatened species, Aonyx cinereus, which is Vulnerable according to the IUCN Red List of Threatened Species. This documentation highlights the biodiversity significance of Wayanad Wildlife Sanctuary and the Nilgiri mountain range in the Western Ghats. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
42. Individual and demographic consequences of mass eviction in cooperative banded mongooses.
- Author
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Thompson, Faye J., Marshall, Harry H., Vitikainen, Emma I.K., Young, Andrew J., and Cant, Michael A.
- Subjects
- *
BANDED mongoose , *ANIMAL societies , *ANIMAL social behavior , *MUNGOS , *ANIMAL behavior , *HERPESTIDAE - Abstract
In animal societies, conflict within groups can result in eviction, where individuals are often permanently expelled from their group. To understand the evolution of eviction and its role in the resolution of within-group conflict requires information on the demographic consequences of eviction for individuals and groups. However, such information is usually difficult to obtain because of the difficulty in tracking and monitoring individuals after they are evicted from their natal groups. Here we used a 15-year data set on life history and demography to investigate the consequences of eviction in a tractable cooperatively breeding mammal, the banded mongoose, Mungos mungo . In this species, groups of individuals are periodically evicted en masse and eviction is a primary mechanism by which new groups form in the study population. Following eviction, we found sex differences in dispersal distance: some females established new groups on the study peninsula but males always dispersed away from the study peninsula. Evicted females suffered reduced reproductive success in the year after eviction. For the evicting group, eviction was associated with increased per capita reproductive success for females, suggesting that eviction is successful in reducing reproductive competition. However, eviction was also associated with increased intergroup conflict for the evicting group. Our results suggest that within-group conflict resolution strategies affect group productivity, group interactions and the structure of the population, and hence have fitness impacts that reach beyond the individual evictors and evictees involved in eviction. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
43. Behavioural change during dispersal and its relationship to survival and reproduction in a cooperative breeder
- Author
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Andre Ganswindt, Tim H. Clutton-Brock, Paul J. Haverkamp, Gabriele Cozzi, Marta B. Manser, Arpat Ozgul, Natasha D. Harrison, Nino Maag, Harrison, Natasha D [0000-0001-5779-0187], Maag, Nino [0000-0002-1818-0674], Haverkamp, Paul J [0000-0002-3756-0795], Ganswindt, André [0000-0002-1474-7602], Ozgul, Arpat [0000-0001-7477-2642], Cozzi, Gabriele [0000-0002-1744-1940], Apollo - University of Cambridge Repository, University of Zurich, and Harrison, Natasha D
- Subjects
0106 biological sciences ,Evolution ,Herpestidae ,media_common.quotation_subject ,Foraging ,Biology ,survival ,010603 evolutionary biology ,01 natural sciences ,foraging ,10127 Institute of Evolutionary Biology and Environmental Studies ,03 medical and health sciences ,Behavior and Systematics ,vigilance ,reproductive skew ,medicine ,Animals ,dispersal ,Glucocorticoids ,Research Articles ,Ecology, Evolution, Behavior and Systematics ,Behavioural Ecology ,Demography ,030304 developmental biology ,media_common ,faecal glucocorticoid metabolites ,Suricata suricatta ,0303 health sciences ,Ecology ,Aggression ,Reproduction ,15. Life on land ,1105 Ecology, Evolution, Behavior and Systematics ,Vigilance (behavioural ecology) ,behavioural response ,570 Life sciences ,biology ,590 Animals (Zoology) ,Biological dispersal ,Female ,Animal Science and Zoology ,Population Ecology ,1103 Animal Science and Zoology ,medicine.symptom ,FOS: Medical biotechnology ,Research Article - Abstract
Funder: University of Zurich; Id: http://dx.doi.org/10.13039/501100006447, Funder: MAVA Foundation, Funder: Mammal Research Institute at the University of Pretoria, The ability of dispersing individuals to adjust their behaviour to changing conditions is instrumental in overcoming challenges and reducing dispersal costs, consequently increasing overall dispersal success. Understanding how dispersers' behaviour and physiology change during the dispersal process, and how they differ from resident individuals, can shed light on the mechanisms by which dispersers increase survival and maximise reproduction. By analysing individual behaviour and concentrations of faecal glucocorticoid metabolites (fGCM), a stress-associated biomarker, we sought to identify the proximate causes behind differences in survival and reproduction between dispersing and resident meerkats Suricata suricatta. We used data collected on 67 dispersing and 108 resident females to investigate (a) which individual, social and environmental factors are correlated to foraging and vigilance, and whether the role of such factors differs among dispersal phases, and between dispersers and residents; (b) how time allocated to either foraging or vigilance correlated to survival in dispersers and residents and (c) the link between aggression and change in fGCM concentration, and their relationship with reproductive rates in dispersing groups and resident groups with either long-established or newly established dominant females. Time allocated to foraging increased across dispersal phases, whereas time allocated to vigilance decreased. Time allocated to foraging and vigilance correlated positively and negatively, respectively, with dispersers' group size. We did not find a group size effect for residents. High proportions of time allocated to foraging correlated with high survival, and more so in dispersers, suggesting that maintaining good physical condition may reduce mortality during dispersal. Furthermore, while subordinate individuals rarely reproduced in resident groups, the conception rate of subordinates in newly formed dispersing groups was equal to that of their dominant individuals. Mirroring conception rates, in resident groups, fGCM concentrations were lower in subordinates than in dominants, whereas in disperser groups, fGCM concentrations did not differ between subordinates and dominants. Our results, which highlight the relationship between behavioural and physiological factors and demographic rates, provide insights into some of the mechanisms that individuals of a cooperative species can use to increase overall dispersal success.
- Published
- 2021
44. Morphology of lingual papillae in the Javan mongoose (Herpestes javanicus) by scanning electron microscopy and light microscopy
- Author
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Isna Fitranuansa Kusuma, Ulfah Damia, Emilia Ika Megawati, Felix Chahya Eka Saputra, Srikanth Karnati, Dwi Liliek Kusindarta, and Hevi Wihadmadyatami
- Subjects
General Veterinary ,Tongue ,Herpestidae ,Microscopy, Electron, Scanning ,Mouth Mucosa ,Animals ,General Medicine ,Taste Buds - Abstract
There are variations in the tongue papillae among species, including the size, number and type of papillae. There have been no studies describing the detailed tongue morphology of Javan mongoose (Herpestes javanicus). Therefore, we analysed the tongue and lingual structures of Javan mongoose (H. javanicus), using scanning electron microscopy and light microscopy. The tongue was covered by papillae and rough in appearance. We divided the tongue into three regions: the apex, corpus and radix of the tongue. The medioventral section of the tongue was characterized by the presence of a frenulum. We identified four types of papillae: filiform, fungiform, conical and vallate papillae. There were two subtypes of filiform papillae: leaf-like and conical. Both were seen on the apex, although leaf-like filiform papillae also extended to the corpus. Fungiform papillae had taste buds on their dorsal surfaces and were observed from the apex to the radix. Vallate papillae, three in numbers only occurred on the radix. Periodic acid-Schiff (PAS) staining showed minor lingual glands on the textus muscularis striatus syncytialis of the corpus and lateral radix, which we identified as Weber glands; we also observed von Ebner glands on this layer of the tongue. These anatomical features of the Javan mongoose tongue are broadly similar to those seen in other carnivores, with some specific differences, such as the number of vallate papillae.
- Published
- 2022
45. A hybrid binary dwarf mongoose optimization algorithm with simulated annealing for feature selection on high dimensional multi-class datasets
- Author
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Olatunji A. Akinola, Absalom E. Ezugwu, Olaide N. Oyelade, and Jeffrey O. Agushaka
- Subjects
Machine Learning ,Multidisciplinary ,Herpestidae ,Animals ,Algorithms ,Problem Solving - Abstract
The dwarf mongoose optimization (DMO) algorithm developed in 2022 was applied to solve continuous mechanical engineering design problems with a considerable balance of the exploration and exploitation phases as a metaheuristic approach. Still, the DMO is restricted in its exploitation phase, somewhat hindering the algorithm's optimal performance. In this paper, we proposed a new hybrid method called the BDMSAO, which combines the binary variants of the DMO (or BDMO) and simulated annealing (SA) algorithm. In the modelling and implementation of the hybrid BDMSAO algorithm, the BDMO is employed and used as the global search method and the simulated annealing (SA) as the local search component to enhance the limited exploitative mechanism of the BDMO. The new hybrid algorithm was evaluated using eighteen (18) UCI machine learning datasets of low and medium dimensions. The BDMSAO was also tested using three high-dimensional medical datasets to assess its robustness. The results showed the efficacy of the BDMSAO in solving challenging feature selection problems on varying datasets dimensions and its outperformance over ten other methods in the study. Specifically, the BDMSAO achieved an overall result of 61.11% in producing the highest classification accuracy possible and getting 100% accuracy on 9 of 18 datasets. It also yielded the maximum accuracy obtainable on the three high-dimensional datasets utilized while achieving competitive performance regarding the number of features selected.
- Published
- 2022
46. Fighting force and experience combine to determine contest success in a warlike mammal
- Author
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P. A. Green, Faye J. Thompson, and Michael A. Cant
- Subjects
Male ,Competitive Behavior ,Multidisciplinary ,Behavior, Animal ,Herpestidae ,Hostility ,Age Factors ,Animals ,Probability - Abstract
Conflicts between social groups or “intergroup contests” are proposed to play a major role in the evolution of cooperation and social organization in humans and some nonhuman animal societies. In humans, success in warfare and other collective conflicts depends on both fighting group size and the presence and actions of key individuals, such as leaders or talismanic warriors. Understanding the determinants of intergroup contest success in other warlike animals may help to reveal the role of these contests in social evolution. Using 19 y of data on intergroup encounters in a particularly violent social mammal, the banded mongoose ( Mungos mungo ), we show that two factors, the number of adult males and the age of the oldest male (the “senior” male), have the strongest impacts on the probability of group victory. The advantage conferred by senior males appears to stem from their fighting experience. However, the galvanizing effect of senior males declines as they grow old until, at very advanced ages, senior males become a liability rather than an asset and can be evicted. As in human conflict, strength in numbers and the experience of key individuals combine to determine intergroup contest success in this animal society. We discuss how selection arising from intergroup contests may explain a suite of features of individual life history and social organization, including male eviction, sex-assortative alloparental care, and adult sex ratio.
- Published
- 2022
47. Crystal structure of hemoglobin from mouse (Mus musculus) compared with those from other small animals and humans
- Author
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Sayed Yasien, Nagaraj Shobana, Thangaraj Vinuchakkaravarthy, M. N. Ponnuswamy, Pandian Ramesh, and Selvarajan Sigamani Sundaresan
- Subjects
Rodent ,Herpestidae ,Guinea Pigs ,030303 biophysics ,Biophysics ,Crystal structure ,Crystallography, X-Ray ,Biochemistry ,Protein Structure, Secondary ,Methemoglobin ,Research Communications ,Guinea pig ,Hemoglobins ,Mice ,03 medical and health sciences ,chemistry.chemical_compound ,Species Specificity ,Structural Biology ,biology.animal ,Genetics ,Animals ,Humans ,Amino Acid Sequence ,Heme ,030304 developmental biology ,0303 health sciences ,biology ,Oxygen transport ,Condensed Matter Physics ,Molecular biology ,Rats ,chemistry ,Cats ,Rabbits ,Hemoglobin - Abstract
Mice (Mus musculus) are nocturnal small animals belonging to the rodent family that live in burrows, an environment in which significantly high CO2 levels prevail. It is expected that mouse hemoglobin (Hb) plays an important role in their adaptation to living in such a high-CO2 environment, while many other species cannot. In the present study, mouse Hb was purified and crystallized at a physiological pH of 7 in the orthorhombic space group P212121; the crystals diffracted to 2.8 Å resolution. The primary amino-acid sequence and crystal structure of mouse Hb were compared with those of mammalian Hbs in order to investigate the structure–function relationship of mouse Hb. Differences were observed from guinea pig Hb in terms of amino-acid sequence and from cat Hb in overall structure (in terms of r.m.s.d.). The difference in r.m.s.d. from cat Hb may be due to the existence of the molecule in a conformation other than the R-state. Analysis of tertiary- and quaternary-structural features, the α1β2 interface region and the heme environment without any ligands in all four heme groups showed that mouse methemoglobin is in an intermediate state between the R-state and the T-state that is much closer to the R-state conformation.
- Published
- 2021
48. Biogeography of the Egyptian mongoose Herpestes ichneumon (Linnaeus, 1758) in Africa, with first records for Laikipia County, central Kenya
- Author
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Mugo Joseph Mware, Paul W. Webala, Thomas M. Butynski, Dedan K. Ngatia, Yvonne A. de Jong, and Adam Wesley Ferguson
- Subjects
Geography ,biology ,biology.animal ,Biogeography ,Zoology ,Herpestes ,Herpestidae ,biology.organism_classification ,Mongoose ,Ecology, Evolution, Behavior and Systematics - Published
- 2021
49. Sparganosis due to Spirometra sp. (Cestoda; Diphyllobothriidae) in captive meerkats (Suricata suricatta)
- Author
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Guilherme G. Verocai, Elizabeth W. Howerth, Kelsey L. Paras, Yanet Velázquez-Jiménez, Rita McManamon, Lisa Kimbrell, Martha Weber, Brittany McHale, and R. Trey Callahan
- Subjects
Larva ,biology ,Herpestidae ,Plerocercoid ,Sparganosis ,Larval cestodosis ,Cestoda ,Zoonosis ,Diphyllobothriidea ,Zoology ,Broad tapeworm ,biology.organism_classification ,medicine.disease ,Diphyllobothriidae ,Infectious Diseases ,Subcutaneous nodule ,lcsh:Zoology ,parasitic diseases ,medicine ,Spirometra ,Animal Science and Zoology ,Parasitology ,lcsh:QL1-991 - Abstract
We report three cases of sparganosis due to plerocercoids of the tapeworm Spirometra sp. in captive meerkats (Suricata suricatta) from a zoo exhibit in the southeastern United States. Two meerkats were euthanized, one due to an uncontrollable seizure and the other due to trauma, and at necropsy cysts containing cestode larvae were observed. A third meerkat had a subcutaneous nodule surgically removed, which contained similar larvae. The third animal died years later, and had numerous cestode larvae in the pleural and peritoneal cavities. The larvae were morphologically identified as plerocercoids of diphyllobothriidean cestodes. On necropsy, multiple nodules, ranging in size from 2.5 to 3.0 cm, were observed in the subcutaneous tissue and muscles. Multifocally, separating skeletal muscle fibers were longitudinal and transversal sections of cestode larva. Histologically, parasitic cysts contained large numbers of neutrophils and macrophages, admixed with proteinaceous material. Molecular and phylogenetic analyses confirmed that specimens from one of the meerkats belonged to the genus Spirometra and was closely related to Spirometra plerocercoids isolated from a snake from the United States and wild felids from South America. Meerkats likely became infected by ingesting infected second intermediate hosts, such as amphibians and reptiles that may have entered the exhibit. Management practices that minimize access of meerkats and other susceptible hosts to intermediate hosts should be implemented.
- Published
- 2020
50. Javan mongoose or small Indian mongoose–who is where?
- Author
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Veron, Géraldine and Jennings, Andrew P.
- Subjects
- *
HERPESTES javanicus , *PHYLOGEOGRAPHY , *HERPESTIDAE , *SUBSPECIES , *ANIMALS - Abstract
The Javan mongoose Urva javanica and the small Indian mongoose Urva auropunctata have been recently shown not to be conspecific. However, the limits of their respective distribution ranges have not been fully defined. In particular, Chinese populations were not attributed to either species using molecular data. Furthermore, the small mongooses found on Hong Kong Island (discovered at the end of the 1980s) were not clearly attributed to U. auropunctata or U. javanica , nor their status (native or introduced) established. The main aims of this study were to: (1) investigate the intraspecific genetic diversity and structure within these two species; and (2) clarify the distribution limits of U. auropunctata and U. javanica , and in particular, to identify Chinese populations, and determine which species occurs on Hong Kong Island (and whether they are native or introduced). The analyses of one nuclear and three mitochondrial genes confirmed the separation of U. javanica and U. auropunctata , and showed that the populations from southern China and Hong Kong Island belong to U. javanica . The intraspecific geographical structure of the two species is clarified, and the taxonomic implications are discussed. In particular, we found a strong divergence of Javan individuals of U. javanica , which should be considered a separate subspecies. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
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