4,472 results
Search Results
2. Reanalysis of an oft-cited paper on honeybee magnetoreception reveals random behavior.
- Author
-
Baltzley MJ and Nabity MW
- Subjects
- Animals, Behavior, Animal physiology, Probability, Research Design, Bees physiology, Magnetic Fields
- Abstract
While mounting evidence indicates that a phylogenetically diverse group of animals detect Earth-strength magnetic fields, a magnetoreceptor has not been identified in any animal. One possible reason that identifying a magnetoreceptor has proven challenging is that, like many research fields, magnetoreception research lacks extensive independent replication. Independent replication is important because a subset of studies undoubtedly contain false positive results and without replication it is difficult to determine whether the outcome of an experiment is a false positive. However, we report here a reanalysis of a well-cited paper on honeybee magnetoreception demonstrating that the original paper represented a false positive finding caused by incorrect estimates of probability. We also point out how good experimental design practices could have revealed the error prior to publication. Hopefully, this reanalysis will serve as a reminder of the importance of good experimental design in order to reduce the likelihood of publishing false positive results., Competing Interests: Competing interestsThe authors declare no competing or financial interests., (© 2018. Published by The Company of Biologists Ltd.)
- Published
- 2018
- Full Text
- View/download PDF
3. Outcomes of bee sting injury: comparison of hornet and paper wasp.
- Author
-
Ono T, Iida M, Mori Y, Nejima R, Iwasaki T, Amano S, and Miyata K
- Subjects
- Adolescent, Adult, Animals, Child, Corneal Injuries complications, Eye Foreign Bodies complications, Female, Follow-Up Studies, Humans, Insect Bites and Stings complications, Male, Middle Aged, Prognosis, Retrospective Studies, Slit Lamp Microscopy, Time Factors, Vision, Low diagnosis, Young Adult, Bees, Corneal Injuries diagnosis, Eye Foreign Bodies diagnosis, Insect Bites and Stings diagnosis, Vision, Low etiology, Visual Acuity, Wasps
- Abstract
Purpose: To compare the outcomes of ocular injuries of hornets and paper wasps' stings., Study Design: Retrospective case series., Methods: Patients diagnosed with ocular injuries sustained by bee stings at Miyata Eye Hospital (Miyazaki, Japan) between August 2000 and July 2016 were enrolled. Retrospective data regarding type of bee, visual acuity, and treatment were collected from medical records. Outcomes of the hornet and wasp groups were compared., Results: Five eyes of 5 patients (3 men, 2 women; mean age 44.6±21.2 years [range 9-62 years]) were enrolled. The mean follow-up period was 50.6 ± 57.6 months (range 4 days to 121 months). The causative bee was hornet in 3 cases and wasp in 2. The anterior chamber was irrigated in 2 patients, both from the hornet group. The best-corrected visual acuity at the final visit was no light perception, light perception, and (0.02) in the hornet group, (1.5) and (1.2) in the wasp group., Conclusions: The hornet group exhibited significantly worse prognosis than the wasp group. Identifying the type of bee is important in establishing prognosis.
- Published
- 2018
- Full Text
- View/download PDF
4. Measuring individual locomotor rhythms in honey bees, paper wasps and other similar-sized insects.
- Author
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Giannoni-Guzmán MA, Avalos A, Marrero Perez J, Otero Loperena EJ, Kayım M, Medina JA, Massey SE, Kence M, Kence A, Giray T, and Agosto-Rivera JL
- Subjects
- Animals, Bees genetics, Female, Species Specificity, Temperature, Bees physiology, Circadian Rhythm, Motor Activity, Wasps physiology
- Abstract
Circadian rhythms in social insects are highly plastic and are modulated by multiple factors. In addition, complex behaviors such as sun-compass orientation and time learning are clearly regulated by the circadian system in these organisms. Despite these unique features of social insect clocks, the mechanisms as well as the functional and evolutionary relevance of these traits remain largely unknown. Here we show a modification of the Drosophila activity monitoring (DAM) system that allowed us to measure locomotor rhythms of the honey bee, Apis mellifera (three variants; gAHB, carnica and caucasica), and two paper wasps (Polistes crinitus and Mischocyttarus phthisicus). A side-by-side comparison of the endogenous period under constant darkness (free-running period) led us to the realization that these social insects exhibit significant deviations from the Earth's 24 h rotational period as well as a large degree of inter-individual variation compared with Drosophila. Experiments at different temperatures, using honey bees as a model, revealed that testing the endogenous rhythm at 35°C, which is the hive's core temperature, results in average periods closer to 24 h compared with 25°C (23.8 h at 35°C versus 22.7 h at 25°C). This finding suggests that the degree of tuning of circadian temperature compensation varies among different organisms. We expect that the commercial availability, cost-effectiveness and integrated nature of this monitoring system will facilitate the growth of the circadian field in these social insects and catalyze our understanding of the mechanisms as well as the functional and evolutionary relevance of circadian rhythms.
- Published
- 2014
- Full Text
- View/download PDF
5. Honeybees could be biomonitors for AMR spread, suggests paper
- Subjects
Honeybee ,Drug resistance in microorganisms ,Bees ,Environmental issues ,Regional focus/area studies - Abstract
India, Sept. 6 -- The insects can carry genetic elements of key AMR drivers in their digestive tracts European honeybees can be an effective biomonitor for determining the spread of [...]
- Published
- 2023
6. Brain transcriptomic analysis in paper wasps identifies genes associated with behaviour across social insect lineages.
- Author
-
Toth AL, Varala K, Henshaw MT, Rodriguez-Zas SL, Hudson ME, and Robinson GE
- Subjects
- Analysis of Variance, Animals, Appetitive Behavior physiology, Bees genetics, Female, Gene Expression Profiling, Illinois, Microsatellite Repeats genetics, Oligonucleotide Array Sequence Analysis, Reproduction genetics, Sequence Analysis, DNA, Wasps genetics, Bees physiology, Behavior, Animal physiology, Brain metabolism, Social Dominance, Wasps physiology
- Abstract
Comparative sociogenomics has the potential to provide important insights into how social behaviour evolved. We examined brain gene expression profiles of the primitively eusocial wasp Polistes metricus and compared the results with a growing base of brain gene expression information for the advanced eusocial honeybee, Apis mellifera. We studied four female wasp groups that show variation in foraging/provisioning behaviour and reproductive status, using our newly developed microarray representing approximately 3248 P. metricus genes based on sequences generated from high-throughput pyrosequencing. We found differences in the expression of approximately 389 genes across the four groups. Pathways known from Drosophila melanogaster to be related to lipid metabolism, heat and stress response, and various forms of solitary behaviour were associated with behavioural differences among wasps. Forty-five per cent of differentially expressed transcripts showed significant associations with foraging/provisioning status, and 14 per cent with reproductive status. By comparing these two gene lists with lists of genes previously shown to be differentially expressed in association with honeybee division of labour, we found a significant overlap of genes associated with foraging/provisioning, but not reproduction, across the two species. These results suggest common molecular roots for foraging division of labour in two independently evolved social insect species and the possibility of more lineage-specific roots of reproductive behaviour. We explore the implications of these findings for the idea that there is a conserved 'genetic toolkit' for division of labour across multiple lineages.
- Published
- 2010
- Full Text
- View/download PDF
7. The Journal of Experimental Biology Outstanding Paper Prize, 2007.
- Author
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Phillips K
- Subjects
- Animals, Behavior, Animal, History, 20th Century, History, 21st Century, Zoology history, Awards and Prizes, Bees physiology, Periodicals as Topic
- Published
- 2007
- Full Text
- View/download PDF
8. The recent Page and Peng paper published in Experimental Gerontology 36 (2001), 695-711.
- Author
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Sullivan JP, Fahrbach SE, and Robinson GE
- Subjects
- Animals, Behavior, Animal physiology, Aging physiology, Bees growth & development, Insecta growth & development
- Published
- 2001
- Full Text
- View/download PDF
9. Lake Sinai virus is a diverse, globally distributed but not emerging multi-strain honeybee virus.
- Author
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Hou C, Liang H, Chen C, Zhao H, Zhao P, Deng S, Li B, Yang D, Yang S, and Wilfert L
- Subjects
- Animals, Humans, China epidemiology, Viruses, Bees parasitology, Bees virology, RNA Viruses genetics, Varroidae virology
- Abstract
Domesticated honeybees and wild bees are some of the most important beneficial insects for human and environmental health, but infectious diseases pose a serious risk to these pollinators, particularly following the emergence of the ectoparasitic mite Varroa destructor as a viral vector. The acquisition of this novel viral vector from the Asian honeybee Apis ceranae has fundamentally changed viral epidemiology in its new host, the western honeybee A. mellifera. While the recently discovered Lake Sinai Viruses (LSV) have been associated with weak honeybee colonies, they have not been associated with vector-borne transmission. By combining a large-scale multi-year survey of LSV in Chinese A. mellifera and A. cerana honeybee colonies with globally available LSV-sequence data, we investigate the global epidemiology of this virus. We find that globally distributed LSV is a highly diverse multi-strain virus, which is predominantly associated with the western honeybee A. mellifera. In contrast to the vector-borne deformed wing virus, LSV is not an emerging disease. Instead, demographic reconstruction and strong global and local population structure indicates that it is a highly variable multi-strain virus in a stable association with its main host, the western honeybee. Prevalence patterns in China suggest a potential role for migratory beekeeping in the spread of this pathogen, demonstrating the potential for disease transmission with the man-made transport of beneficial insects., (© 2023 The Authors. Molecular Ecology published by John Wiley & Sons Ltd.)
- Published
- 2023
- Full Text
- View/download PDF
10. Disposed paper cups and declining bees
- Author
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Chandrasekaran, S., Nagendran, N. Arun, Krishnankutty, N., Pandiaraja, D., Saravanan, S., Kamaladhasan, N., and Kamalakannan, B.
- Published
- 2011
11. A Stingless Bee Nesting with a Paper Wasp (Hymenoptera: Apidae, Vespidae)
- Author
-
Rasmussen, Claus
- Published
- 2004
12. THE WECKHERLIN PAPERS
- Author
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FORSTER, LEONARD
- Published
- 1993
13. Unpublished Letters and Papers of Owen Roe O'Neill
- Author
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Casway, Jerrold and O'Neill, Owen Roe
- Published
- 1980
14. Outcomes of bee sting injury: comparison of hornet and paper wasp
- Author
-
Takashi Ono, Shiro Amano, Ryohei Nejima, Kazunori Miyata, Takuya Iwasaki, Yosai Mori, and Masaharu Iida
- Subjects
Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Time Factors ,Visual acuity ,Adolescent ,genetic structures ,Wasps ,Visual Acuity ,Vision, Low ,Slit Lamp Microscopy ,Retrospective data ,Young Adult ,03 medical and health sciences ,Sting Injury ,0302 clinical medicine ,medicine ,Animals ,Humans ,Child ,Retrospective Studies ,Paper wasp ,business.industry ,Medical record ,fungi ,Insect Bites and Stings ,030208 emergency & critical care medicine ,Mean age ,General Medicine ,Bees ,Middle Aged ,Light perception ,Prognosis ,Bee stings ,medicine.disease ,eye diseases ,Ophthalmology ,Eye Foreign Bodies ,030221 ophthalmology & optometry ,Female ,medicine.symptom ,business ,Corneal Injuries ,Follow-Up Studies - Abstract
To compare the outcomes of ocular injuries of hornets and paper wasps’ stings. Retrospective case series. Patients diagnosed with ocular injuries sustained by bee stings at Miyata Eye Hospital (Miyazaki, Japan) between August 2000 and July 2016 were enrolled. Retrospective data regarding type of bee, visual acuity, and treatment were collected from medical records. Outcomes of the hornet and wasp groups were compared. Five eyes of 5 patients (3 men, 2 women; mean age 44.6±21.2 years [range 9–62 years]) were enrolled. The mean follow-up period was 50.6 ± 57.6 months (range 4 days to 121 months). The causative bee was hornet in 3 cases and wasp in 2. The anterior chamber was irrigated in 2 patients, both from the hornet group. The best-corrected visual acuity at the final visit was no light perception, light perception, and (0.02) in the hornet group, (1.5) and (1.2) in the wasp group. The hornet group exhibited significantly worse prognosis than the wasp group. Identifying the type of bee is important in establishing prognosis.
- Published
- 2018
15. Immunotherapy with Hymenoptera venoms. Position paper of the Working Group on Immunotherapy of the European Academy of Allergy and Clinical Immunology.
- Author
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Bousquet J, Müller UR, Dreborg S, Jarisch R, Malling HJ, Mosbech H, Urbanek R, and Youlten L
- Subjects
- Adult, Aged, Anaphylaxis etiology, Anaphylaxis immunology, Animals, Bee Venoms administration & dosage, Bee Venoms immunology, Child, Child, Preschool, Desensitization, Immunologic adverse effects, Evaluation Studies as Topic, Female, Humans, Hypersensitivity etiology, Immunoglobulin E immunology, Infant, Middle Aged, Occupational Diseases prevention & control, Pregnancy, Species Specificity, Anaphylaxis prevention & control, Bee Venoms therapeutic use, Bees immunology, Insect Bites and Stings complications
- Abstract
Immunotherapy with Hymenoptera venoms is widely used throughout the world and is accepted as an effective treatment for most patients with Hymenoptera venom allergy. There are, however, still some unresolved problems with this form of treatment. At present there is no definite test which makes it possible to identify patients at risk - and thus candidates for immunotherapy - unequivocally. On the basis of prospective studies on the natural history of Hymenoptera allergy, venom immunotherapy is indicated in adults with severe systemic anaphylaxis. It is usually not necessary in patients with large local reactions only. Children with mild systemic reactions, e.g. urticaria, will need immunotherapy only in case of repeated reactions and/or a high risk of re-exposure. The selection of venoms for immunotherapy may lead to some confusion owing to common antigenic determinants shared by venoms of various Hymenoptera species. Many different regimens for immunotherapy have been proposed. At present, the three main are: rush, stepwise or clustered and classical. The maintenance dose of 100 micrograms usually protects from life-threatening reactions. However, in some patients 200 micrograms are necessary for complete protection. The usual interval between maintenance injections is 4 to 6 weeks. In many patients a strong increase of venom specific serum IgG-antibodies usually parallels clinical protection induced by venom immunotherapy, although many exceptions have been reported. Allergic side effects of venom immunotherapy are not rare, especially with honey bee venom and during the initial phase of dose increase. The question of the duration of venom immunotherapy is handled differently: although some authors recommend treatment for life, most suggest treating patients until skin tests and RAST become negative.
- Published
- 1987
- Full Text
- View/download PDF
16. Influence of Attractants on Nest Establishment by the Alfalfa Leafcutting Bee (Hymenoptera: Megachilidae) in Styrofoam and Rolled Paper
- Author
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Parker, Frank D., Teranishi, Roy, and Olson, A. C.
- Published
- 1983
17. Neuroanatomical differentiation associated with alternative reproductive tactics in male arid land bees, Centris pallida and Amegilla dawsoni.
- Author
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Barrett M, Schneider S, Sachdeva P, Gomez A, Buchmann S, and O'Donnell S
- Subjects
- Animals, Male, Bees anatomy & histology, Bees physiology, Brain anatomy & histology, Brain physiology, Sexual Behavior, Animal physiology
- Abstract
Alternative reproductive tactics (ARTs) occur when there is categorical variation in the reproductive strategies of a sex within a population. These different behavioral phenotypes can expose animals to distinct cognitive challenges, which may be addressed through neuroanatomical differentiation. The dramatic phenotypic plasticity underlying ARTs provides a powerful opportunity to study how intraspecific nervous system variation can support distinct cognitive abilities. We hypothesized that conspecific animals pursuing ARTs would exhibit dissimilar brain architecture. Dimorphic males of the bee species Centris pallida and Amegilla dawsoni use alternative mate location strategies that rely primarily on either olfaction (large-morph) or vision (small-morph) to find females. This variation in behavior led us to predict increased volumes of the brain regions supporting their primarily chemosensory or visual mate location strategies. Large-morph males relying mainly on olfaction had relatively larger antennal lobes and relatively smaller optic lobes than small-morph males relying primarily on visual cues. In both species, as relative volumes of the optic lobe increased, the relative volume of the antennal lobe decreased. In addition, A. dawsoni large males had relatively larger mushroom body lips, which process olfactory inputs. Our results suggest that the divergent behavioral strategies in ART systems can be associated with neuroanatomical differentiation.
- Published
- 2021
- Full Text
- View/download PDF
18. Data for paper Wind beneath my wings: Increasing wind speed causes increased hesitancy to take-off in foraging honeybees and bumblebees
- Author
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Hennessy, Georgia
- Subjects
Pollinators ,Behaviour ,Wind ,Bees - Abstract
Data set for a paper identifying that hesitancy to take off from a flower increases for both honeybees and Bumblebees in increasing wind speed on natural plants
- Published
- 2021
- Full Text
- View/download PDF
19. Vitellogenin expression in the ovaries of adult honeybee workers provides insights into the evolution of reproductive and social traits.
- Author
-
Cardoso-Júnior CAM, Oldroyd BP, and Ronai I
- Subjects
- Animals, Bees genetics, Female, Insect Proteins metabolism, Ovary metabolism, Reproduction genetics, Social Behavior, Vitellogenins metabolism, Bees physiology, Biological Evolution, Gene Expression, Insect Proteins genetics, Life History Traits, Vitellogenins genetics
- Abstract
Social insects are notable for having two female castes that exhibit extreme differences in their reproductive capacity. The molecular basis of these differences is largely unknown. Vitellogenin (Vg) is a powerful antioxidant and insulin-signalling regulator used in oocyte development. Here we investigate how Royal Jelly (the major food of honeybee queens) and queen mandibular pheromone (a major regulator of worker fertility), affect the longevity and reproductive status of honey bee workers, the expression of Vg, its receptor VgR and associated regulatory proteins. We find that Vg is expressed in the ovaries of workers and that workers fed a queen diet of Royal Jelly have increased Vg expression in the ovaries. Surprisingly, we find that expression of Vg is not associated with ovary activation in workers, suggesting that this gene has potentially acquired non-reproductive functions. Therefore, Vg expression in the ovaries of honeybee workers provides further support for the Ovarian Ground Plan Hypothesis, which argues that genes implicated in the regulation of reproduction have been co-opted to regulate behavioural differences between queens and workers., (© 2021 The Royal Entomological Society.)
- Published
- 2021
- Full Text
- View/download PDF
20. The simple beauty of paper.
- Subjects
SAMURAI ,BEES ,GLUE - Abstract
You might think paper is just something to draw or write on. Wrong! It can become a warrior, a flower or even a bee. Artist Juho Konkkola spent 50 hours folding a single sheet of paper into a samurai warrior with fingers, teeth and eyes. No glue or scissors were used. Daphne Lee turns thousands of strips of paper into a beautiful flower and Kate Kato creates paper sculptures of the natural world, such as bees and mushrooms. These are just three of the artists in a show, Pulp, at MAKE Southwest in Devon, England, until 13 April.Incredible paper craft. [Extracted from the article]
- Published
- 2024
21. Genetic signatures of dominance hierarchies reveal conserved cis-regulatory and brain gene expression underlying aggression in a facultatively social bee.
- Author
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Steffen MA and Rehan SM
- Subjects
- Animals, Bees physiology, Genome, Insect, Aggression, Bees genetics, Brain metabolism, Gene Regulatory Networks, Social Dominance, Transcriptome
- Abstract
Agonistic interactions among individuals can result in the formation of dominance hierarches that can reinforce individual behavior and social status. Such dominance hierarches precede the establishment of reproductive dominance, division of labor and caste formation in highly social insect taxa. As such, deciphering the molecular basis of aggression is fundamental in understanding the mechanisms of social evolution. Assessing the proximate mechanisms of aggression in incipiently social bees can provide insights into the foundations of genomic mechanisms of social behavior. Here, we measured the effects of aggression on brain gene expression in the incipiently social bee, Ceratina australensis. We examine the brain transcriptomic differences between individuals who have experienced recurrent winning, losing, or a change in rank during repeated encounters. Using comparative analyses across taxa, we identify deeply conserved candidate genes, pathways, and regulatory networks for the formation of social hierarchies., (© 2019 John Wiley & Sons Ltd and International Behavioural and Neural Genetics Society.)
- Published
- 2020
- Full Text
- View/download PDF
22. Brain transcriptomic analysis in paper wasps identifies genes associated with behaviour across social insect lineages
- Author
-
Amy L. Toth, Gene E. Robinson, Sandra L. Rodriguez-Zas, Kranthi Varala, Michael T. Henshaw, and Matthew E. Hudson
- Subjects
Wasps ,Foraging ,Biology ,General Biochemistry, Genetics and Molecular Biology ,Polistes metricus ,Research articles ,Genetic variation ,Animals ,Gene ,Oligonucleotide Array Sequence Analysis ,General Environmental Science ,Comparative genomics ,Genetics ,Paper wasp ,Analysis of Variance ,Appetitive Behavior ,Behavior, Animal ,General Immunology and Microbiology ,Gene Expression Profiling ,Reproduction ,Brain ,Sequence Analysis, DNA ,General Medicine ,Bees ,Eusociality ,Gene expression profiling ,Social Dominance ,Female ,Illinois ,General Agricultural and Biological Sciences ,Microsatellite Repeats - Abstract
Comparative sociogenomics has the potential to provide important insights into how social behaviour evolved. We examined brain gene expression profiles of the primitively eusocial waspPolistes metricusand compared the results with a growing base of brain gene expression information for the advanced eusocial honeybee,Apis mellifera. We studied four female wasp groups that show variation in foraging/provisioning behaviour and reproductive status, using our newly developed microarray representing approximately 3248P. metricusgenes based on sequences generated from high-throughput pyrosequencing. We found differences in the expression of approximately 389 genes across the four groups. Pathways known fromDrosophila melanogasterto be related to lipid metabolism, heat and stress response, and various forms of solitary behaviour were associated with behavioural differences among wasps. Forty-five per cent of differentially expressed transcripts showed significant associations with foraging/provisioning status, and 14 per cent with reproductive status. By comparing these two gene lists with lists of genes previously shown to be differentially expressed in association with honeybee division of labour, we found a significant overlap of genes associated with foraging/provisioning, but not reproduction, across the two species. These results suggest common molecular roots for foraging division of labour in two independently evolved social insect species and the possibility of more lineage-specific roots of reproductive behaviour. We explore the implications of these findings for the idea that there is a conserved ‘genetic toolkit’ for division of labour across multiple lineages.
- Published
- 2010
23. Energy Budgets Do Balance: A Comment on a Paper by Wightman and Rogers
- Author
-
Ågren, Göran I. and Axelsson, Björn
- Published
- 1979
24. Reanalysis of an oft-cited paper on honeybee magnetoreception reveals random behavior
- Author
-
Michael J. Baltzley and Matthew Nabity
- Subjects
0301 basic medicine ,False positive finding ,Behavior, Animal ,Physiology ,Computer science ,Magnetoreception ,Aquatic Science ,Bees ,Outcome (probability) ,03 medical and health sciences ,030104 developmental biology ,Magnetic Fields ,Research Design ,Insect Science ,Replication (statistics) ,Animals ,Animal Science and Zoology ,Molecular Biology ,Ecology, Evolution, Behavior and Systematics ,Cognitive psychology ,Probability - Abstract
While mounting evidence indicates that a phylogenetically diverse group of animals detect Earth-strength magnetic fields, a magnetoreceptor has not been identified in any animal. One possible reason that identifying a magnetoreceptor has proven challenging is that, like many research fields, magnetoreception research lacks extensive independent replication. Independent replication is important because a subset of studies undoubtedly contain false positive results and without replication it is difficult to determine if the outcome of an experiment is a false positive. However, we report here a reanalysis of a well-cited paper on honeybee magnetoreception demonstrating that the original paper represented a false positive finding caused by a misunderstanding of probability. We also point out how good experimental design practices could have revealed the error prior to publication. Hopefully, this reanalysis will serve as a reminder of the importance of good experimental design in order to reduce the likelihood of publishing false positive results.
- Published
- 2018
25. Controlling Varroa destructor Infesting Honey Bee Apis mellifera using Essential Oils as Diet Supplements and as Impregnated Paper.
- Author
-
H. A. A., Mesbah, El-Sayed, Nagda A., Mourad, A. K., and Abdel-Razik, B. A.
- Subjects
VARROA destructor ,DIETARY supplements ,HONEYBEES ,BEES ,ESSENTIAL oils ,FOOD safety ,MITES - Abstract
Copyright of Journal of Plant Protection & Pathology is the property of Egyptian National Agricultural Library (ENAL) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
26. [Physicochemical and microbiological studies and the quantitative determination of a water-soluble polyphenolic preparation of propolis].
- Author
-
Tikhonov AI, Salo DP, Kolomiets DP, and Rybalko NG
- Subjects
- Animals, Chemical Phenomena, Chemistry, Physical, Chromatography, Paper, Microbial Sensitivity Tests, Phenols isolation & purification, Solubility, Spectrophotometry, Ultraviolet, Bees, Phenols pharmacology, Resins, Plant analysis
- Published
- 1975
27. Expansion and Accelerated Evolution of 9-Exon Odorant Receptors in Polistes Paper Wasps.
- Author
-
Legan, Andrew W, Jernigan, Christopher M, Miller, Sara E, Fuchs, Matthieu F, and Sheehan, Michael J
- Subjects
BEES ,ANTS ,OLFACTORY receptors ,COMPARATIVE genomics ,INSECT societies - Abstract
Independent origins of sociality in bees and ants are associated with independent expansions of particular odorant receptor (OR) gene subfamilies. In ants, one clade within the OR gene family, the 9-exon subfamily, has dramatically expanded. These receptors detect cuticular hydrocarbons (CHCs), key social signaling molecules in insects. It is unclear to what extent 9-exon OR subfamily expansion is associated with the independent evolution of sociality across Hymenoptera, warranting studies of taxa with independently derived social behavior. Here, we describe OR gene family evolution in the northern paper wasp, Polistes fuscatus , and compare it to four additional paper wasp species spanning ∼40 million years of evolutionary divergence. We find 200 putatively functional OR genes in P. fuscatus , matching predictions from neuroanatomy, and more than half of these are in the 9-exon subfamily. Most OR gene expansions are tandemly arrayed at orthologous loci in Polistes genomes, and microsynteny analysis shows species-specific gain and loss of 9-exon ORs within tandem arrays. There is evidence of episodic positive diversifying selection shaping ORs in expanded subfamilies. Values of omega (d
N / dS ) are higher among 9-exon ORs compared to other OR subfamilies. Within the Polistes OR gene tree, branches in the 9-exon OR clade experience relaxed negative (relaxed purifying) selection relative to other branches in the tree. Patterns of OR evolution within Polistes are consistent with 9-exon OR function in CHC perception by combinatorial coding, with both natural selection and neutral drift contributing to interspecies differences in gene copy number and sequence. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF
28. Soldier neural architecture is temporarily modality specialized but poorly predicted by repertoire size in the stingless bee Tetragonisca angustula.
- Author
-
Baudier KM, Bennett MM, Barrett M, Cossio FJ, Wu RD, O'Donnell S, Pavlic TP, and Fewell JH
- Subjects
- Animals, Bees, Behavior, Animal
- Abstract
Individual heterogeneity within societies provides opportunities to test hypotheses about adaptive neural investment in the context of group cooperation. Here, we explore neural investment in defense specialist soldiers of the eusocial stingless bee (Tetragonisca angustula) which are age subspecialized on distinct defense tasks and have an overall higher lifetime task repertoire than other sterile workers within the colony. Consistent with predicted behavioral demands, soldiers had higher relative visual (optic lobe) investment than nonsoldiers but only during the period when they were performing the most visually demanding defense task (hovering guarding). As soldiers aged into the less visually demanding task of standing guarding this difference disappeared. Neural investment was otherwise similar across all colony members. Despite having larger task repertoires, soldiers had similar absolute brain size and the smaller relative brain size compared to other workers, meaning that lifetime task repertoire size was a poor predictor of brain size. Both high behavioral specialization in stable environmental conditions and reassignment across task groups during a crisis occur in T. angustula. The differences in neurobiology we report here are consistent with these specialized but flexible defense strategies. This work broadens our understanding of how neurobiology mediates age and morphological task specialization in highly cooperative societies., (© 2021 Wiley Periodicals LLC.)
- Published
- 2022
- Full Text
- View/download PDF
29. Buzzkill: Accusations are leveled at research on how dancing bees measure distances.
- Author
-
Quaglia, Sofia
- Subjects
DANCE ,BEES ,HONEYBEES ,SCIENCE journalism ,BEE behavior ,FALSIFICATION of data ,TUNNEL lining ,BEES algorithm - Abstract
Accusations have been made against high-profile papers documenting honeybee navigation, specifically regarding the existence of an internal "odometer" that relies on visual cues. Two scientists have raised concerns about possible miscalculations, image reuse, and data manipulation in 10 key papers. The author of these papers, Mandyam Veerambudi "Srini" Srinivasan, denies the allegations and states that his conclusions remain firm and have been independently replicated. While some researchers support Srinivasan, others believe that the claims need to be revisited. The journal Science is evaluating the concerns, and further investigation may be necessary. [Extracted from the article]
- Published
- 2024
30. When a Tritrophic Interaction Goes Wrong to the Third Level: Xanthoxylin From Trees Causes the Honeybee Larval Mortality in Colonies Affected by the River Disease.
- Author
-
Rossini C, Almeida L, Arredondo D, Antúnez K, Santos E, Haralambides AR, and Invernizzi C
- Subjects
- Acetophenones pharmacology, Animals, Bees growth & development, Diet veterinary, Discriminant Analysis, Euphorbiaceae metabolism, Gas Chromatography-Mass Spectrometry, Larva drug effects, Larva physiology, Least-Squares Analysis, Magnetic Resonance Spectroscopy, Metabolomics methods, Plant Components, Aerial chemistry, Plant Components, Aerial metabolism, Plant Nectar chemistry, Acetophenones analysis, Bees physiology, Euphorbiaceae chemistry
- Abstract
The "River Disease" (RD), a disorder impacting honeybee colonies located close to waterways with abundant riparian vegetation (including Sebastiania schottiana, Euphorbiaceae), kills newly hatched larvae. Forager bees from RD-affected colonies collect honeydew excretions from Epormenis cestri (Hemiptera: Flatidae), a planthopper feeding on trees of S. schottiana. First-instar honeybee larvae fed with this honeydew died. Thus, we postulated that the nectars of RD-affected colonies had a natural toxin coming from either E. cestri or S. schottiana. An untargeted metabolomics characterization of fresh nectars extracts from colonies with and without RD allowed to pinpoint xanthoxylin as one of the chemicals present in higher amounts in nectar from RD-affected colonies than in nectars from healthy colonies. Besides, xanthoxylin was also found in the aerial parts of S. schottiana and the honeydew excreted by E. cestri feeding on this tree. A larva feeding assay where xanthoxylin-enriched diets were offered to 1
st instar larvae showed that larvae died in the same proportion as larvae did when offered enriched diets with nectars from RD-colonies. These findings demonstrate that a xenobiotic can mimic the RD syndrome in honeybee larvae and provide evidence of an interspecific flow of xanthoxylin among three trophic levels. Further, our results give information that can be considered when implementing measures to control this honeybee disease., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2021
- Full Text
- View/download PDF
31. Tissue-Hersteller drängen nach vorne.
- Subjects
TOILET paper ,MARKET leaders ,MANUFACTURING industries ,CARDBOARD ,BEES - Abstract
Copyright of Lebensmittel Zeitung is the property of dfv Mediengruppe and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
32. Transcriptional identification of differentially expressed genes associated with division of labor in Apis cerana cerana.
- Author
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Chen YJ, Li YJ, Wu S, Yang WC, Miao J, Gu SH, Li JH, Miao XQ, and Li X
- Subjects
- Animals, Bees metabolism, Gene Expression Profiling, Insect Proteins metabolism, Bees genetics, Insect Proteins genetics, Life History Traits, Transcriptome
- Abstract
Workers of Apis cerana cerana undergo an in-hive nursing to outdoor foraging transition, but the genes underlying this age-related transition remain largely unknown. Here, we sequenced the head transcriptomes of its 7-day-old normal nurses, 18- and 22-day-old normal foragers, 7-day-old precocious foragers and 22-day-old over-aged nurses to unravel the genes associated with this transition. Mapping of the sequence reads to Apis mellifera genome showed that the three types of foragers had a greater percentage of reads from annotated exons and intergenic regions, whereas the two types of nurses had a greater percentage of reads from introns. Pair- and group-wise comparisons of the five transcriptomes revealed 59 uniquely expressed genes (18 in nurses and 41 in foragers) and 14 nurse- and 15 forager-upregulated genes. The uniquely expressed genes are usually low-abundance long noncoding RNAs, transcription factors, transcription coactivators, RNA-binding proteins, kinases or phosphatases that are involved in signaling and/or regulation, whereas the nurse- or forager-upregulated genes are often high-abundance downstream genes that directly perform the tasks of nurses or foragers. Taken together, these results suggest that the nurse-forager transition is coordinated by a social signal-triggered epigenetic shift from introns to exons/intergenic regions and the resulting transcriptional shift between the nurse- and forager-associated genes., (© 2020 Institute of Zoology, Chinese Academy of Sciences.)
- Published
- 2021
- Full Text
- View/download PDF
33. Magnetosensitivity in the Stingless Bee Tetragonisca angustula: Magnetic Inclination Can Alter the Choice of the Flying Departure Angle From the Nest.
- Author
-
Vale JO and Acosta-Avalos D
- Subjects
- Animals, Bees, Magnetic Phenomena
- Abstract
It is known that animals are sensitive to the geomagnetic field. In the case of insects, magnetoreception has been reported in several ant species and in some bees and wasps. One study showed that the stingless bee Tetragonisca angustula is able to sense the modification of the magnetic field inclination. The aim of the present manuscript is to continue that study in T. angustula, analyzing the nest arrival and departure angles in the presence of magnetic fields generated by magnets. The bees flying to and from the nest were recorded and the flying trajectories were obtained by analyzing the video frame by frame. The magnetic field was generated by 6, 9, or 12 magnets contained inside an Eppendorf tube and fixed near the nest. Our results show that T. angustula bees are sensitive to magnetic fields because the departure angles are influenced by the magnets. It was observed that these bees are sensitive to the polarization of the magnetic field vector that influences the choice of flying up or down, and this sensitivity has a window until about 80 μT (about four times the local geomagnetic field), with the magnetic field information for higher magnetic field intensities being ignored by the bees. Bioelectromagnetics. 2021;42:51-59. © 2020 Bioelectromagnetics Society., (© 2020 Bioelectromagnetics Society.)
- Published
- 2021
- Full Text
- View/download PDF
34. The sublethal effects of ethiprole on the development, defense mechanisms, and immune pathways of honeybees (Apis mellifera L.).
- Author
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Liu Y, Wang C, Qi S, He J, and Bai Y
- Subjects
- Animals, Antioxidants metabolism, Bees metabolism, Gene Expression Regulation drug effects, Inactivation, Metabolic drug effects, Insect Proteins genetics, Larva drug effects, Larva growth & development, Oxidative Stress drug effects, Bees growth & development, Bees immunology, Insecticides toxicity, Pyrazoles toxicity
- Abstract
Ethiprole has been widely used in agriculture, but there have been few studies on the adverse effects of ethiprole on nontarget organisms. This study focused on the mechanism of the sublethal effects of ethiprole on the development, antioxidation mechanisms, detoxification mechanisms and immune-related gene expression of honeybees (Apis mellifera L.). Honeybee larvae were found to be more sensitive than pupae to ethiprole. It was found that ethiprole inhibited the pupation and eclosion of bee larvae in a dose-dependent manner, with ethiprole doses of 1 × 10
-3 mg/L decreasing pupation and eclosion rates to 50.00 ± 8.84% and 20.83 ± 10.62%, respectively. The activities of antioxidative enzymes (superoxide dismutase and catalase) and detoxification factors (glutathione and glutathione S-transferase) were also significantly increased in ethiprole-exposed honeybees, indicating that a sublethal dose of ethiprole also induced oxidative stress in honeybees. In the 1 × 10-3 mg/L ethiprole-exposure group, the expression of pathogen recognition-related gene PGRP-4300 was upregulated 11.10 ± 0.45-fold, and that of detoxification-related gene CYP4G11 was upregulated 8.84 ± 0.11-fold, indicating that ethiprole induced an immune reaction in honeybees. To the best our knowledge, this study represents the first demonstration that sublethal concentrations of ethiprole inhibit honeybee development and activate honeybee defense and immune systems.- Published
- 2021
- Full Text
- View/download PDF
35. The Use of Products with a Monitoring System for Remote Bee Detection in Beekeeping in Czechia.
- Author
-
Kaňovská, Lucie
- Subjects
BEES ,BEEKEEPING ,INFORMATION technology ,BEEKEEPERS ,SMART devices ,SEMI-structured interviews ,PRICES - Abstract
The use of modern technology is becoming part of both industry and agriculture. These technologies can also be used in beekeeping, where they can help to monitor the operation of the hive remotely. Beekeepers can remotely monitor the weight of their hives, their temperature, humidity, and other parameters. The aim of this paper is to map the beekeepers in the use of products with monitoring system for remote bee detection in beekeeping in Czechia. To map the issue, qualitative research using semi-structured interviews was conducted with beekeepers, manufacturers/providers of smart devices in beekeeping, and other entities involved in beekeeping. The findings showed that the interest of manufacturers and sellers to offer these smart devices is significant, but the interest of beekeepers is rather less, due to e.g., the purchase price, weaker IT knowledge, traditional beekeeping practices, higher age of beekeepers and the joy of being personally with bees. The novelty of the paper is not to look at the provision of ICT in beekeeping from a technical perspective, but from the perspective of users (beekeepers) and manufacturers of these technologies. Through interviews with beekeepers as well as others in the apiculture sphere, a comprehensive view of the issue is developed. Moreover, this is the first piece of research on this area in Czechia. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. The Journal of Experimental Biology Outstanding Paper Prize, 2007
- Author
-
Kathryn Phillips
- Subjects
Engineering ,Behavior, Animal ,Physiology ,business.industry ,Awards and Prizes ,Library science ,Aquatic Science ,Bees ,History, 20th Century ,History, 21st Century ,GeneralLiterature_MISCELLANEOUS ,Insect Science ,Experimental biology ,Animals ,Animal Science and Zoology ,Periodicals as Topic ,business ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) ,Molecular Biology ,Zoology ,Ecology, Evolution, Behavior and Systematics - Abstract
The editors of The Journal of Experimental Biology are pleased to announce the winners of this year's JEB Outstanding Paper Prize. Conceived in memory of the journal's fifth Editor-in-Chief, Bob Boutilier, the award is made by the editors to the most exceptional paper published in the journal in
- Published
- 2007
37. Low Strength Magnetic Fields Serve as a Cue for Foraging Honey Bees but Prior Experience is More Indicative of Choice.
- Author
-
Chicas-Mosier AM, Radi M, Lafferrandre J, O'Hara JF, Vora HD, and Abramson CI
- Subjects
- Animals, Earth, Planet, Bees physiology, Behavior, Animal, Choice Behavior, Magnetic Fields
- Abstract
Species of migrating insects use magnetic fields as a navigational tool that is independent of current weather conditions and non-migrating species have been shown to discriminate anomalies in magnetic field from the earth's baseline. Honey bee discrimination of magnetic field has been studied in the context of associative learning, physiology, and whole hive responses. This article uses a combination of free-flight and laboratory studies to determine how small fluctuations from Earth's magnetic field affect honey bee (Apis mellifera L.) decision-making. Honey bees were tested in three experiments: (i) recruitment to an aqueous sucrose feeder, (ii) an artificial free-flight flower patch with floral color-dependent magnetic field strength, and (iii) a Y-maze with alternating colors on a stronger magnetic field. In free-flying feeder experiments, magnetic field served as a temporary cue, but when offered an equal caloric alternative with lesser magnetic field, the latter was preferred. Flower patch experiments showed initial color biases that were abandoned as a response to magnetic field induction. In laboratory experiments, bees showed a color-dependent behavioral response to the magnetic field. The results of this study indicate that bees may use small fluctuations in magnetic fields as a cue but that it is likely low-value as compared with other stimuli. Bioelectromagnetics. 2020;41:458-470. © 2020 Bioelectromagnetics Society., (© 2020 Bioelectromagnetics Society.)
- Published
- 2020
- Full Text
- View/download PDF
38. The prediction of swarming in honeybee colonies using vibrational spectra.
- Author
-
Ramsey MT, Bencsik M, Newton MI, Reyes M, Pioz M, Crauser D, Delso NS, and Le Conte Y
- Subjects
- Animals, Seasons, Spectrum Analysis, Bees, Behavior, Animal, Vibration
- Abstract
In this work, we disclose a non-invasive method for the monitoring and predicting of the swarming process within honeybee colonies, using vibro-acoustic information. Two machine learning algorithms are presented for the prediction of swarming, based on vibration data recorded using accelerometers placed in the heart of honeybee hives. Both algorithms successfully discriminate between colonies intending and not intending to swarm with a high degree of accuracy, over 90% for each method, with successful swarming prediction up to 30 days prior to the event. We show that instantaneous vibrational spectra predict the swarming within the swarming season only, and that this limitation can be lifted provided that the history of the evolution of the spectra is accounted for. We also disclose queen toots and quacks, showing statistics of the occurrence of queen pipes over the entire swarming season. From this we were able to determine that (1) tooting always precedes quacking, (2) under natural conditions there is a 4 to 7 day period without queen tooting following the exit of the primary swarm, and (3) human intervention, such as queen clipping and the opening of a hive, causes strong interferences with important mechanisms for the prevention of simultaneous rival queen emergence.
- Published
- 2020
- Full Text
- View/download PDF
39. Current status and application of lactic acid bacteria in animal production systems with a focus on bacteria from honey bee colonies.
- Author
-
Ramos OY, Basualdo M, Libonatti C, and Vega MF
- Subjects
- Animals, Anti-Bacterial Agents metabolism, Anti-Bacterial Agents pharmacology, Food Industry, Functional Food, Honey, Humans, Lactobacillales classification, Pollen, Probiotics, Bees microbiology, Lactobacillales isolation & purification, Lactobacillales metabolism
- Abstract
Lactic acid bacteria (LAB) are widely distributed in nature and, due to their beneficial effects on the host, are used as probiotics. This review describes the applications of LAB in animal production systems such as beekeeping, poultry, swine and bovine production, particularly as probiotics used to improve health, enhance growth and reproductive performance. Given the importance of honeybees in nature and the beekeeping industry as a producer of healthy food worldwide, the focus of this review is on the coexistence of LAB with honeybees, their food and environment. The main LAB species isolated from the beehive and their potential technological use are described. Evidence is provided that 43 LAB bacteria species have been isolated from beehives, of which 20 showed inhibition against 28 species of human and animal pathogens, some of which are resistant to antibiotics. Additionally, the presence of LAB in the beehive and their relationship with antibacterial properties of honey and pollen is discussed. Finally, we describe the use of lactic bacteria from bee colonies and their antimicrobial effect against foodborne pathogens and human health. This review broadens knowledge by highlighting the importance of honeybee colonies as suppliers of LAB and functional food., (© 2019 The Society for Applied Microbiology.)
- Published
- 2020
- Full Text
- View/download PDF
40. The flip side of the coin: ecological function of the bee-hawking Asian hornet.
- Author
-
Chen G, Zhang Z, Chomicki G, and Sun W
- Subjects
- Animals, Beekeeping, Ecology, Europe, Seed Dispersal, Bees, Introduced Species, Predatory Behavior, Wasps
- Published
- 2020
- Full Text
- View/download PDF
41. Shared genes related to aggression, rather than chemical communication, are associated with reproductive dominance in paper wasps (Polistes metricus)
- Author
-
Christina M. Grozinger, Robert D. Minard, Srihari Radhakrishnan, Michael T. Henshaw, John F. Tooker, and Amy L. Toth
- Subjects
Wasps ,Zoology ,Pheromones ,Chemical communication ,Polistes metricus ,medicine ,Genetics ,Animals ,Animal communication ,Social behavior ,Dominance (genetics) ,Genome ,biology ,Aggression ,Gene Expression Profiling ,Reproduction ,fungi ,Brain ,Genomics ,Bees ,biology.organism_classification ,Eusociality ,Hydrocarbons ,Gene expression profiling ,Animal Communication ,Sex pheromone ,Insect Proteins ,Female ,Polistes ,medicine.symptom ,Biotechnology ,Research Article - Abstract
Background In social groups, dominant individuals may socially inhibit reproduction of subordinates using aggressive interactions or, in the case of highly eusocial insects, pheromonal communication. It has been hypothesized these two modes of reproductive inhibition utilize conserved pathways. Here, we use a comparative framework to investigate the chemical and genomic underpinnings of reproductive dominance in the primitively eusocial wasp Polistes metricus. Our goals were to first characterize transcriptomic and chemical correlates of reproductive dominance and second, to test whether dominance-associated mechanisms in paper wasps overlapped with aggression or pheromone-related gene expression patterns in other species. To explore whether conserved molecular pathways relate to dominance, we compared wasp transcriptomic data to previous studies of gene expression associated with pheromonal communication and queen-worker differences in honey bees, and aggressive behavior in bees, Drosophila, and mice. Results By examining dominant and subordinate females from queen and worker castes in early and late season colonies, we found that cuticular hydrocarbon profiles and genome-wide patterns of brain gene expression were primarily associated with season/social environment rather than dominance status. In contrast, gene expression patterns in the ovaries were associated primarily with caste and ovary activation. Comparative analyses suggest genes identified as differentially expressed in wasp brains are not related to queen pheromonal communication or caste in bees, but were significantly more likely to be associated with aggression in other insects (bees, flies), and even a mammal (mice). Conclusions This study provides the first comprehensive chemical and molecular analysis of reproductive dominance in paper wasps. We found little evidence for a chemical basis for reproductive dominance in P. metricus, and our transcriptomic analyses suggest that different pathways regulate dominance in paper wasps and pheromone response in bees. Furthermore, there was a substantial impact of season/social environment on gene expression patterns, indicating the important role of external cues in shaping the molecular processes regulating behavior. Interestingly, genes associated with dominance in wasps were also associated with aggressive behavior in bees, solitary insects and mammals. Thus, genes involved in social regulation of reproduction in Polistes may have conserved functions associated with aggression in insects and other taxa.
- Published
- 2014
42. The recent Page and Peng paper published in Experimental Gerontology 36 (2001), 695-711
- Author
-
J P, Sullivan, S E, Fahrbach, and G E, Robinson
- Subjects
Aging ,Insecta ,Behavior, Animal ,Animals ,Bees - Published
- 2001
43. A simple method for the detection and determination of trehalose by spot elution paper chromatography
- Author
-
George Caldes and Benjamin Prescott
- Subjects
Chromatography ,Chromatography, Paper ,Elution ,Organic Chemistry ,Analytical chemistry ,Trehalose ,General Medicine ,Bees ,Disaccharides ,Biochemistry ,Analytical Chemistry ,chemistry.chemical_compound ,Paper chromatography ,chemistry ,Simple (abstract algebra) ,Trehalase - Published
- 1975
44. LIVESTOCK AND ANIMAL PRODUCTION IN ROMANIA - DYNAMICS AND STRUCTURAL CHANGES IN THE PERIOD 2007-2020.
- Author
-
POPESCU, Agatha, DINU, Toma Adrian, STOIAN, Elena, ŞERBAN, Valentin, CIOCAN, Horia Nicolae, and STANCIU, Mirela
- Subjects
LIVESTOCK productivity ,STRUCTURAL dynamics ,MILK yield ,ANIMAL products ,AGRICULTURAL productivity ,BEES ,GOATS ,SHEEP milk ,GOAT milk - Abstract
The paper analyzed the evolution animal sector regarding livestock and production in Romania in the period 2007-2020. Two sub-periods: P1- 2007-2013 and P2 2014-2020 were compared for assessing if the achievements in P2 were superior. The data from the National Institute of statistics regarding livestock and production by species were processed using fixed basis index, structural index, regression equations, coefficient of determination, multi annual mean per decade, absolute and relative differences between P2 and P1, in order to emphasize the trends and changes during the studied period. The results emphasized the following: the number of bovines, pigs and poultry decreased, while the number of sheep and goats and bee families increased both in P2 and P1. The total animal live weight at slaughter diminished due to the lower and lower live weight of bovines and pigs. However, the increased live weight at slaughter of sheep, goats and poultry had a positive impact. Milk and egg production declined and continued in P2, while wool and honey production increased. Despite that agricultural production value in animal sector increased by +20,420 trillion Lei in 2020 versus 2007, it was by 68.61% smaller than the agricultural production value achieved in the vegetal sector. In consequence, the contribution of animal sector to agricultural output was just 31.39% in the year 2020. The gaps in domestic production have to be covered by imports to meet consumers' requirements and this will deepen the deficit in agro-food trade balance. The reduction of CO
2 emissions in agriculture, where 50% come from animal sector, obliges farmers to set up strategies destined to promote animal products obtained from more environment friendly technologies. [ABSTRACT FROM AUTHOR]- Published
- 2023
45. New Bee stamps to feature on honey-scented paper
- Subjects
Bees ,Business ,Business, international - Abstract
M2 PRESSWIRE-May 18, 2012-: New Bee stamps to feature on honey-scented paper(C)1994-2012 M2 COMMUNICATIONS RDATE:18052012 The Isle of Man Post Office is pleased to present this beautiful stamp issue dedicated [...]
- Published
- 2012
46. Two High-Impact Journals Publish New Papers on the Parasitic Varroa destructor Mite's Role in Collapse of Honey Bee Colonies
- Subjects
Honeybee ,Bees ,Periodical publishing ,Business ,News, opinion and commentary - Abstract
NEW YORK, June 28, 2012 /PRNewswire-USNewswire/ -- The following is a Statement by http://www.ecohealthalliance.org/about/experts/9-daszak , President, EcoHealth Alliance: EcoHealth Alliance, an organization with a long history of ground-breaking work on [...]
- Published
- 2012
47. New Bee stamps to feature on honey-scented paper
- Subjects
Bees ,Business, international - Abstract
London: Isle of Man Government has issued the following news release: The Isle of Man Post Office is pleased to present this beautiful stamp issue dedicated to one of our [...]
- Published
- 2012
48. New Bee stamps to feature on honey-scented paper
- Subjects
Bees ,General interest ,News, opinion and commentary - Abstract
May 18, 2012 (M2 PRESSWIRE via COMTEX) -- The Isle of Man Post Office is pleased to present this beautiful stamp issue dedicated to one of our most popular and [...]
- Published
- 2012
49. Old records, new bees result in 'Science' paper for MSU ecologist
- Subjects
Bees ,Biological sciences ,Health ,Montana State University - Abstract
By a News Reporter-Staff News Editor at Life Science Weekly -- BOZEMAN, Mont. - Laura Burkle and her colleagues captured 2,778 bees while retracing the muddy steps of a scientist [...]
- Published
- 2013
50. Chubutolithes gaimanensis and Other Wasp Trace Fossils: Breaking through the Taphonomic Barrier
- Author
-
Genise, Jorge F. and Cladera, Gerardo
- Published
- 2004
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