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  • Modeling Honey Bee Populations - Home - PLOS

    2015-7-6 · Eusocial honey bee populations (Apis mellifera) employ an age stratification organization of egg, larvae, pupae, hive bees and foraging bees. Understanding the recent decline in honey bee colonies hinges on understanding the factors that impact each of these different age castes. We first perform an analysis of steady state bee populations given mortality rates within each bee caste and find ...

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  • Modelling Food and Population Dynamics in Honey

    2013-5-7 · Honey bees (Apis mellifera) are increasingly in demand as pollinators for various key agricultural food crops, but globally honey bee populations are in decline, and honey bee colony failure rates have increased. This scenario highlights a need to understand the conditions in which colonies flourish and in which colonies fail. To aid this investigation we present a compartment model of bee ...

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  • (PDF) Modeling Honey Bee Populations

    2014-3-26 · Honey bees (Apis mellifera) are increasingly in demand as pollinators for various key agricultural food crops, but globally honey bee populations are in decline, and honey bee colony failure rates have increased. This scenario highlights a need to understand the conditions in which colonies flourish and in which colonies fail.

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  • Modelling Food and Population Dynamics in Honey Bee

    Eusocial honey bee populations (Apis mellifera) employ an age stratification organization of egg, larvae, pupae, hive bees and foraging bees.Understanding the recent decline in honey bee colonies hinges on understanding the factors that impact each of these different age castes.

    Get Price
  • Modeling Honey Bee Populations - Europe PMC

    2015-7-1 · adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

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  • Modeling Honey Bee Populations - NASA/ADS

    2021-4-27 · PLOS publishes a suite of influential Open Access journals across all areas of science and medicine. Rigorously reported, peer reviewed and immediately available without restrictions, promoting the widest readership and impact possible.

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  • Home - PLOS

    2020-9-21 · veterinary sciences Article Modeling the Influence of Mites on Honey Bee Populations David J. Torres 1,* and Nicholas A. Torres 2 1 Department of Mathematics and Physical Science, Northern New Mexico College, Española, NM 87532, USA 2 Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA; [email protected] * Correspondence: …

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  • Modeling the Influence of Mites on Honey Bee Populations

    Then, virus titers were quantified in bee heads and 38 commercial products using RT-qPCR. For honey and pollen, a positive association between DWV-A concentration and mortality was observed. High ...

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  • Temporal analysis of the honey bee microbiome

    Honey bees (Apis mellifera) play a critical role in global food production as pollinators of numerous crops. Recently, honey bee populations in the United States, Canada, and Europe have suffered an unexplained increase in annual losses due to a phenomenon known as Colony Collapse Disorder (CCD). Ep …

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  • Evaluation of the distribution and impacts of parasites ...

    2021-4-4 · In East Africa, honey bees (Apis mellifera) provide critical pollination services and income for small-holder farmers and rural families. While honey bee populations in North America and Europe are in decline, little is known about the status of honey bee populations in Africa. We initiated a nation …

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  • Modeling the Influence of Mites on Honey Bee

    The Varroa destructor mite has been associated with the recent decline in honey bee populations. While experimental data are crucial in understanding declines, insights can be gained from models of honey bee populations. We add the influence of the V. destructor mite to our existing honey bee model in order to better understand the impact of mites on honey bee colonies.

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  • Q&A with Honey Bee Researcher Michelle Flenniken -

    2016-8-19 · On the eve of National Honey Bee Day, PLOS’s Jose Mendez interviews researcher Dr. Michelle Flenniken, Ph.D of Montana State University to discuss the role of viruses on honey bee health and the importance of honey bee colony losses in her new PLOS Pathogens Pearls Article, The Buzz About Honey Bee Viruses.

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  • Honey bee behavior from within the hive: Unique

    2021-3-17 · PLOS. (2021, March 17). Honey bee behavior from within the hive: Unique videos capture detailed instances of rare honey bee behaviors like mouth-to …

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  • Research Publications — Department of Entomology

    'A Historical Review of Managed Honey Bee Populations in Europe and the United States and the Factors That May Affect Them' Journal of Invertebrate Pathology 103:S80-S95 (2010) vanEngelsdorp, D., J. Hayes Jr, R. M. Underwood, and J. S. Pettis. 2010. A survey of honey bee colony losses in the United States, fall 2008 to spring 2009.

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  • Impact of Stressors on Honey Bees (Apis mellifera ...

    2019-12-20 · diversity Review Impact of Stressors on Honey Bees (Apis mellifera; Hymenoptera: Apidae): Some Guidance for Research Emerge from a Meta-Analysis Tiphaine Havard 1,*, Marion Laurent 2 and Marie-Pierre Chauzat 2,3 1 Regulated Product Assessment Department, ANSES, 94700 Maisons-Alfort, France 2 Unit of Honey Bee Pathology, ANSES, European Union and National Reference Laboratory for Honey Bee

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  • Christina Grozinger, Ph.D. — Department of Entomology

    Numerical Modeling and Measurement of Apis Mellifera Radar Scattering Properties ... and pesticides on honey bee (apis mellifera) populations in east Africa PLoS One, Muli, Elliud, Patch ... Chemical profiles of two pheromone glands are differentially regulated by distinct mating factors in honey bee queens (Apis mellifera L.) PLoS One, Niño ...

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  • Israeli Acute Paralysis Virus: Epidemiology ... - Bee Lab

    2016-5-23 · Israeli Acute Paralysis Virus: Epidemiology, Pathogenesis and Implications for Honey Bee Health Yan Ping Chen1*, Jeffery S. Pettis1, Miguel Corona1, Wei Ping Chen2, Cong Jun Li3, Marla Spivak4, P. Kirk Visscher5, Gloria DeGrandi-Hoffman6, Humberto Boncristiani7, Yan Zhao8, Dennis vanEngelsdorp9, Keith Delaplane10, Leellen Solter11, Francis Drummond12, Matthew Kramer13,

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  • Pesticide-induced oxidative stress in ... - Home -

    2014-9-11 · Pesticides have been cited as one of the major drivers of pollinator loss. However, little is known about pesticide impacts on natural populations of native honey bee species. This study looked into the effect of pesticides with respect to oxidative stress in the laboratory and in field populations of two native Indian honey bee species (Apis dorsata and A. cerana) by examining a combination ...

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  • Honey bee colony performance affected ... - ESA

    'A Historical Review of Managed Honey Bee Populations in Europe and the United States and the Factors That May Affect Them' Journal of Invertebrate Pathology 103:S80-S95 (2010) vanEngelsdorp, D., J. Hayes Jr, R. M. Underwood, and J. S. Pettis. 2010. A survey of honey bee colony losses in the United States, fall 2008 to spring 2009.

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  • Research Publications — Department of Entomology

    2016-1-5 · In 2014, a presidential memorandum called for an assessment of the nation’s pollinators, in response to growing awareness of their economic importance and recent declines. We assess, for the first time to our knowledge, the status and trends of wild bee abundance and their potential impacts on pollination services across the United States. We develop national maps of wild bee abundance ...

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  • Modeling the status, trends, and impacts of wild bee ...

    2008-11-4 · Ph.D. 1976 (Modeling and Control of Birth and Death Processes) (above degrees from the University of the Witwatersrand, Johannesburg, South Africa.) D.Sc. 1995 (Kin recognition and Chemosensory Communication in the Honey Bee, Apis melliferaÑSenior Doctorate from the University of Cape Town, South Africa) Research Interests

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  • Getz Lab UC Berkeley ESPM - Wayne Getz

    2021-6-4 · Notes from the lab: The latest bee science distilled. Summary of Hallmann et al. 2017 [Plos One 12(10):e0185809]: “More than 75 percent decline over 27 years in total flying insect biomass in protected areas”. p. 53 American Bee Journal, Notes from the lab: The latest bee science distilled Dadant & Sons, Inc., Hamilton, IL, United States .

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  • Scott McArt | Pollinator Network @ Cornell

    2019-7-16 · However adult-bee infection prevalence is far lower than seen in our SI model (S.I. Figure S7)—this is in agreement with observations of lower prevalence of paralysis viruses (Budge et al., 2015). Notably, the endemic equilibrium prevalence increases only by small magnitudes as movement between colonies or apiary sizes are drastically ...

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  • Industrial bees: The impact of apicultural

    2020-3-6 · The most severe bacterial disease of honeybees is American foulbrood (AFB). The epidemiology of AFB is driven by the extreme spore resilience, the difficulty of bees to remove these spores, and the considerable incidence of undetected spore-producing colonies. The honeybee collective defence mechanisms and their feedback on colony development, which involves a division of labour …

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  • American foulbrood in a honeybee colony: spore

    2021-6-5 · Inbred populations of bumble bees show decreased genetic diversity and are at a greater risk of decline (Zayed and Packer 2005; Darvill et al. 2006; Ellis et al. 2006). Small or inbred populations may also lose resilience to environmental changes, and are at risk of extirpation due to stochastic events such as fire or unusually wet or dry years.

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  • Franklin's Bumble Bee | Xerces Society

    Genetic variation within and among populations of an arctic/alpine sweat bee (Hymenoptera: Halictidae). The Canadian Entomologist. 134: 619-632. Full text. A64. Zayed, A., and L. Packer. 2002. Genetic differentiation across a behavioural boundary in a primitively eusocial bee (Hymenoptera: Halictidae). Insectes Sociaux. 49: 282-288. Full text. A63.

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  • Dr. Laurence Packer: Curriculum Vitae - Packer Lab -

    2018-7-4 · The marbled crayfish is the only obligately parthenogenetic decapod crustacean and a novel research model and invasive animal on three continents. It is regarded either as a parthenogenetic form of slough crayfish Procambarus fallax or as a separate species named Procambarus virginalis. In order to investigate the species question of this unusual crayfish in detail we have identified the ...

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  • Q&A with Honey Bee Researcher Michelle Flenniken -

    2016-8-19 · On the eve of National Honey Bee Day, PLOS’s Jose Mendez interviews researcher Dr. Michelle Flenniken, Ph.D of Montana State University to discuss the role of viruses on honey bee health and the importance of honey bee colony losses in her new PLOS Pathogens Pearls Article, The Buzz About Honey Bee Viruses.

    Get Price
  • Characterization of viral siRNA populations in honey

    2014-4-1 · Introduction. Colony Collapse Disorder (CCD) is a special case of collapse of honey bee colonies that has resulted in substantial losses for beekeepers around the globe (Cox-Foster et al., 2007, Stokstad, 2007, Genersch et al., 2010).CCD-affected colonies lose most of the adult bee population and are left with a live queen, abundant brood, plenty of food and no dead honey bees in the hive (van ...

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  • A new perspective on landscape impact in bee

    Tang Min, Zou Yi, Su Qinzhi, Zhou Xin. A new perspective on landscape impact in bee populations: Considering the bee gut microbiome[J]. Biodiv Sci, 2019, 27(5): 516-525.

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  • Genetic diversity and differentiation among insular honey ...

    2018-1-6 · Honey bee population sampling Genetic diversity in A. mellifera populations from the SWIO islands was assessed by de novo genotyping of worker honey bees from 2,860 colonies from both insular and continental areas. In order to have a comprehensive understanding of SWIO honey bee phylogeography, a data-

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  • GLOBAL HONEY BEE COLONY DISORDERS AND OTHER

    2021-5-28 · 2. Variation in managed pollinator populations Among the 20 000 known bee species worldwide, the most common domesticated bees are honey bees, Apis mellifera. Native to Europe, Asia and Africa, their value ranges from honey production, wax, propolis and royal jelly, to the efficient pollination of crops.

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  • Distribution of recently identified bee ... - Home -

    2020-4-8 · Viral infections are commonly associated with honey bee (Apis mellifera) colony mortality. Using metagenomics, we previously identified 8 viruses from populations of honey bees and 11 other bee species around the world. These viruses had not been previously been described as bee-infecting viruses, and belong to viral families that are not commonly described in bees.

    Get Price
  • Israeli Acute Paralysis Virus: Epidemiology ... - Bee Lab

    2016-5-23 · Israeli Acute Paralysis Virus: Epidemiology, Pathogenesis and Implications for Honey Bee Health Yan Ping Chen1*, Jeffery S. Pettis1, Miguel Corona1, Wei Ping Chen2, Cong Jun Li3, Marla Spivak4, P. Kirk Visscher5, Gloria DeGrandi-Hoffman6, Humberto Boncristiani7, Yan Zhao8, Dennis vanEngelsdorp9, Keith Delaplane10, Leellen Solter11, Francis Drummond12, Matthew Kramer13,

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  • Honeybee lifespan: the critical role of pre-foraging

    2020-11-11 · 3.1. Pre-foraging stage effects on lifespan. From April to the end of September, the average lifespan of bees was 21.2 ± 13.9 days (standard deviation, n = 1867 bees) and 18.9 ± 10.6 days ( n = 1507 bees) in site A and site B, respectively. Lifespan was, therefore, highly variable ( table 1 ).

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  • Mite bombs or robber lures? The roles of drifting and ...

    2019-6-21 · 1. PLoS One. 2019 Jun 21;14(6):e0218392. doi: 10.1371/journal.pone.0218392. eCollection 2019. Mite bombs or robber lures? The roles of drifting and robbing in Varroa destructor transmission from collapsing honey bee colonies to their neighbors. Peck DT(1), Seeley TD(1).

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  • The Buzz About Bees - ArcGIS StoryMaps

    2021-5-6 · PROJECT SUMMARY. All bees, native and agricultural, in the US are being threatened by a number of factors such as mites, pesticides, and habitat loss. Specifically in Nebraska, honey bee and native bee populations have some of the lowest numbers compared to other states. In the past year, we have lost 82% of the honey bee population according ...

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  • Statistical Summary Honey Bees - USDA

    2019-9-26 · Honey production up 2 percent in 2018 USDA’s National Agricultural Statistics Service has collected data on honey bee colonies and U.S. honey production for decades as part of the Census of Agriculture and in annual surveys. Honey Bee Colonies In 2017, the United States had 2.88 million honey bee colonies, down

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  • An On-line Honey Bee Computer Simulation Model:

    2011-4-1 · An On-line Honey Bee Computer Simulation Model: WebBeePop. WebBeePop is a computer model developed at the Carl Hayden Bee Research Center, a part of the United States Department of Agriculture's Agriculture Research Service located in Tucson, Arizona.. The effort in making this research broadly available is a joint effort of

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  • Honey bee see . . . honey bee do? - EveryONE

    2012-6-11 · Training a dog is hard enough, so just imagine some of the tricks you would have to use to train a honey bee. Despite the difficulties, Scott Dobrin and Susan Fahrbach at Wake Forest University in North Carolina successfully trained honeybees to respond to colored lights for a tasty sucrose treat, reported in the recent PLoS ONE publication “Visual Associative Learning in Restrained Honey ...

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  • It’s official: our honey bees are some of the healthiest ...

    2016-1-14 · Australians love the flora and fauna bustling within their landscape and it turns out honey bees love it too. Australia can now proudly call itself home to one of the healthiest European honey bee (Apis mellifera) populations in the world.A recent national bee survey led by CSIRO’s John Roberts screened 1,240 hives of 155 apiaries in various locations across Australia and has provided the ...

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  • Distribution of recently identified bee ... - Home -

    2020-4-8 · Viral infections are commonly associated with honey bee (Apis mellifera) colony mortality. Using metagenomics, we previously identified 8 viruses from populations of honey bees and 11 other bee species around the world. These viruses had not been previously been described as bee-infecting viruses, and belong to viral families that are not commonly described in bees.

    Get Price
  • Aluminum: New factor in the decline of bee

    2015-6-8 · Very high amounts of aluminum contamination has been found in bees, raising the question of whether aluminum-induced cognitive dysfunction is playing a role in the decline of bumblebee populations.

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  • Parasite Hijacks Iron in Honey Bees : USDA ARS - ARS

    2021-2-18 · Parasite Hijacks Iron in Honey Bees. Contact: Kim Kaplan Email: [email protected] BELTSVILLE, MARYLAND, February 18, 2021—An Agricultural Research Service entomologist has discovered the Nosema ceranae parasite that causes major problems and death in honey bees works by hijacking its host's iron for itself. Iron is as essential a micronutrient for honey bees as it is for people.

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  • Bee Population Decline Puts These U.S. Crops at Risk

    2020-7-30 · Declining bee populations threatens food security. Source: iStock. The new data comes from a paper published in the journal The Royal Society on Wednesday, July 29. For the study, the researchers reviewed how declining pollinator populations are affecting seven different crops at 131 commercial farms across the U.S. and part of Canada.

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  • Gloria DeGrandi-Hoffman : USDA ARS - ARS Home :

    patriline composition of worker populations in honey bee (apis mellifera l.) colonies headed by queens inseminated with african and european drones-(peer reviewed journal) DeGrandi-Hoffman, G., Tarpy, D. A., Schneider, S. S. Patriline composition of worker populations in honeybee (Apis mellifera) colonies headed by queens inseminated with semen ...

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  • Looks like 'global warming' is off the hook for

    2012-1-7 · Populations of honey bees and other pollinators have declined worldwide in recent years. A variety of stressors have been implicated as potential causes, including agricultural pesticides. Neonicotinoid insecticides, which are widely used and highly toxic to honey bees, have been found in previous analyses of honey bee pollen and comb material.

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