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https://www.readbyqxmd.com/read/28535305/preservation-of-domesticated-honey-bee-hymenoptera-apidae-drone-semen
#1
M Paillard, A Rousseau, P Giovenazzo, J L Bailey
Preservation of honey bee (Apis mellifera L., Hymenoptera: Apidae) sperm, coupled with instrumental insemination, is an effective strategy to protect the species and their genetic diversity. Our overall objective is to develop a method of drone semen preservation; therefore, two experiments were conducted. Hypothesis 1 was that cryopreservation (-196 °C) of drone semen is more effective for long-term storage than at 16 °C. Our results show that after 1 yr of storage, frozen sperm viability was higher than at 16 °C, showing that cryopreservation is necessary to conserve semen...
May 23, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28533203/floral-traits-influencing-plant-attractiveness-to-three-bee-species-consequences-for-plant-reproductive-success
#2
Austin A Bauer, Murray K Clayton, Johanne Brunet
PREMISE OF THE STUDY: The ability to attract pollinators is crucial to plants that rely on insects for pollination. We contrasted the roles of floral display size and flower color in attracting three bee species and determined the relationships between plant attractiveness (number of pollinator visits) and seed set for each bee species. METHODS: We recorded pollinator visits to plants, measured plant traits, and quantified plant reproductive success. A zero-inflated Poisson regression model indicated plant traits associated with pollinator attraction...
May 21, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28515748/effects-of-propolis-on-warfarin-efficacy
#3
Esin Akbay, Çiğdem Özenirler, Ömür Gençay Çelemli, Ahmet Baris Durukan, Mehmet Ali Onur, Kadriye Sorkun
INTRODUCTION: Warfarin is commonly used to avoid thromboembolism, predominantly for cardiovascular pathologies. However, the consumption of several herbal products is not permitted during its use due to the associated interactions. Propolis is a popular phytotherapy product made by honey bees. The use of propolis has been dramatically increasing in recent times. AIM: To evaluate the possible interactions between propolis and warfarin in a mouse model with determination of the international normalized ratio (INR) values...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28515299/a-diverse-range-of-novel-rna-viruses-in-geographically-distinct-honey-bee-populations
#4
Emily J Remnant, Mang Shi, Gabriele Buchmann, Tjeerd Blacquière, Edward C Holmes, Madeleine Beekman, Alyson Ashe
Understanding the diversity and consequences of viruses present in honey bees is critical to maintain pollinator health and manage the spread of disease. The viral landscape of honey bees (Apis mellifera) has changed dramatically since the emergence of the parasitic mite Varroa destructor, which increased the spread of virulent variants of viruses such as Deformed wing virus. Previous genomic studies have focused on colonies suffering from Varroa and virulent viruses, which could mask other viral species present in honey bees, resulting in a distorted view of viral diversity...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28505483/the-effects-of-ingested-aqueous-aluminum-on-floral-fidelity-and-foraging-strategy-in-honey-bees-apis-mellifera
#5
Ana M Chicas-Mosier, Bree A Cooper, Alexander M Melendez, Melina Pérez, Devrim Oskay, Charles I Abramson
Pollinator decline is of international concern because of the economic services these organisms provide. Commonly cited sources of decline are toxicants, habitat fragmentation, and parasites. Toxicant exposure can occur through uptake and distribution from plant tissues and resources such as pollen and nectar. Metals such as aluminum can be distributed to pollinators and other herbivores through this route especially in acidified or mined areas. A free-flying artificial flower patch apparatus was used to understand how two concentrations of aluminum (2mg/L and 20mg/L) may affect the learning, orientation, and foraging behaviors of honey bees (Apis mellifera) in Turkey...
May 12, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28503378/pollen-extracts-and-constituent-sugars-increase-growth-of-a-trypanosomatid-parasite-of-bumble-bees
#6
Evan C Palmer-Young, Lucy Thursfield
Phytochemicals produced by plants, including at flowers, function in protection against plant diseases, and have a long history of use against trypanosomatid infection. Floral nectar and pollen, the sole food sources for many species of insect pollinators, contain phytochemicals that have been shown to reduce trypanosomatid infection in bumble and honey bees when fed as isolated compounds. Nectar and pollen, however, consist of phytochemical mixtures, which can have greater antimicrobial activity than do single compounds...
2017: PeerJ
https://www.readbyqxmd.com/read/28501976/component-resolved-diagnosis-in-hymenoptera-anaphylaxis
#7
REVIEW
D Tomsitz, K Brockow
PURPOSE OF REVIEW: Hymenoptera anaphylaxis is one of the leading causes of severe allergic reactions and can be fatal. Venom-specific immunotherapy (VIT) can prevent a life-threatening reaction; however, confirmation of an allergy to a Hymenoptera venom is a prerequisite before starting such a treatment. Component resolved diagnostics (CRD) have helped to better identify the responsible allergen. RECENT FINDINGS: Many new insect venom allergens have been identified within the last few years...
June 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28486589/are-dispersal-mechanisms-changing-the-host-parasite-relationship-and-increasing-the-virulence-of-varroa-destructor-mesostigmata-varroidae-in-managed-honey-bee-hymenoptera-apidae-colonies
#8
Gloria DeGrandi-Hoffman, Fabiana Ahumada, Henry Graham
Varroa (Varroa destructor Anderson and Trueman) are a serious pest of European honey bees (Apis mellifera L.), and difficult to control in managed colonies. In our 11-mo longitudinal study, we applied multiple miticide treatments, yet mite numbers remained high and colony losses exceeded 55%. High mortality from varroa in managed apiaries is a departure from the effects of the mite in feral colonies where bees and varroa can coexist. Differences in mite survival strategies and dispersal mechanisms may be contributing factors...
May 9, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28485079/acute-toxicity-of-five-pesticides-to-apis-mellifera-larvae-reared-in-vitro
#9
Pingli Dai, Cameron J Jack, Ashley N Mortensen, James D Ellis
BACKGROUND: The reported high loss rates of managed honey bee colonies has been attributed to diverse stressors including pesticides. Honey bee larvae can be exposed to pesticides in contaminated nectar, pollen and wax. Due to the difficulties of rearing larvae in vitro, research focusing on adult bee exposure to pesticides is more common than that on larvae exposure to pesticides. Herein, we aimed to assess the acute toxicity of five insecticides to honey bee larvae using an improved in vitro rearing method...
May 9, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28481294/queen-quality-and-the-impact-of-honey-bee-diseases-on-queen-health-potential-for-interactions-between-two-major-threats-to-colony-health
#10
REVIEW
Esmaeil Amiri, Micheline K Strand, Olav Rueppell, David R Tarpy
Western honey bees, Apis mellifera, live in highly eusocial colonies that are each typically headed by a single queen. The queen is the sole reproductive female in a healthy colony, and because long-term colony survival depends on her ability to produce a large number of offspring, queen health is essential for colony success. Honey bees have recently been experiencing considerable declines in colony health. Among a number of biotic and abiotic factors known to impact colony health, disease and queen failure are repeatedly reported as important factors underlying colony losses...
May 8, 2017: Insects
https://www.readbyqxmd.com/read/28473849/directed-bee-colony-optimization-algorithm-to-solve-the-nurse-rostering-problem
#11
M Rajeswari, J Amudhavel, Sujatha Pothula, P Dhavachelvan
The Nurse Rostering Problem is an NP-hard combinatorial optimization, scheduling problem for assigning a set of nurses to shifts per day by considering both hard and soft constraints. A novel metaheuristic technique is required for solving Nurse Rostering Problem (NRP). This work proposes a metaheuristic technique called Directed Bee Colony Optimization Algorithm using the Modified Nelder-Mead Method for solving the NRP. To solve the NRP, the authors used a multiobjective mathematical programming model and proposed a methodology for the adaptation of a Multiobjective Directed Bee Colony Optimization (MODBCO)...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28472369/using-publicly-available-data-to-quantify-plant-pollinator-interactions-and-evaluate-conservation-seeding-mixes-in-the-northern-great-plains
#12
C R V Otto, S O'Dell, R B Bryant, N H Euliss, R M Bush, M D Smart
Concern over declining pollinators has led to multiple conservation initiatives for improving forage for bees in agroecosystems. Using data available through the Pollinator Library (npwrc.usgs.gov/pollinator/), we summarize plant-pollinator interaction data collected from 2012-2015 on lands managed by the U.S. Fish and Wildlife Service and private lands enrolled in U.S. Department of Agriculture conservation programs in eastern North Dakota (ND). Furthermore, we demonstrate how plant-pollinator interaction data from the Pollinator Library and seed cost information can be used to evaluate hypothetical seeding mixes for pollinator habitat enhancements...
May 2, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28468813/the-cues-of-colony-size-how-honey-bees-sense-that-their-colony-is-large-enough-to-begin-to-invest-in-reproduction
#13
Michael L Smith, Phoebe A Koenig, Jacob M Peters
As organisms develop, they first invest resources in survival and growth, but after reaching a certain condition they start to also invest in reproduction. Likewise, superorganisms, such as honey bee colonies, first invest in survival and growth, and later commit resources to reproduction once the number of workers in the colony surpasses a reproductive threshold. The first form of reproductive investment for a honey bee colony is the building of beeswax comb made of special large cells used for rearing males (drones)...
May 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28468244/propolis-counteracts-some-threats-to-honey-bee-health
#14
REVIEW
Michael Simone-Finstrom, Renata S Borba, Michael Wilson, Marla Spivak
Honey bees (Apis mellifera) are constantly dealing with threats from pathogens, pests, pesticides and poor nutrition. It is critically important to understand how honey bees' natural immune responses (individual immunity) and collective behavioral defenses (social immunity) can improve bee health and productivity. One form of social immunity in honey bee colonies is the collection of antimicrobial plant resins and their use in the nest architecture as propolis. We review research on the constitutive benefits of propolis on the honey bee immune system, and its known therapeutic, colony-level effects against the pathogens Paenibacillus larvae and Ascosphaera apis...
April 29, 2017: Insects
https://www.readbyqxmd.com/read/28467471/multilocus-sequence-typing-biochemical-and-antibiotic-resistance-characterizations-reveal-diversity-of-north-american-strains-of-the-honey-bee-pathogen-paenibacillus-larvae
#15
Sasiprapa Krongdang, Jay D Evans, Jeffery S Pettis, Panuwan Chantawannakul
Paenibacillus larvae is a Gram positive bacterium and the causative agent of the most widespread fatal brood disease of honey bees, American foulbrood (AFB). A total of thirty-three independent Paenibacillus larvae isolates from various geographical origins in North America and five reference strains were investigated for genetic diversity using multilocus sequence typing (MLST). This technique is regarded to be a powerful tool for epidemiological studies of pathogenic bacteria and is widely used in genotyping assays...
2017: PloS One
https://www.readbyqxmd.com/read/28467462/synergistic-toxicity-and-physiological-impact-of-imidacloprid-alone-and-binary-mixtures-with-seven-representative-pesticides-on-honey-bee-apis-mellifera
#16
Yu Cheng Zhu, Jianxiu Yao, John Adamczyk, Randall Luttrell
Imidacloprid is the most widely used insecticide in the world. In this study, we used spraying methods to simulate field exposures of bees to formulated imidacloprid (Advise® 2FL) alone and binary mixtures with seven pesticides from different classes. Synergistic toxicity was detected from mixtures of Advise (58.6 mg a.i./L imidacloprid)+Domark (512.5 mg a.i. /L tetraconazole), Advise+Transform (58.5 mg a.i./L sulfoxaflor), and Advise+Vydate (68 mg a.i./L oxamyl), and mortality was significantly increased by 20%, 15%, and 26% respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28464365/extraction-of-honey-from-underground-bee-nests-by-central-african-chimpanzees-pan-troglodytes-troglodytes-in-loango-national-park-gabon-techniques-and-individual-differences
#17
Vittoria Estienne, Colleen Stephens, Christophe Boesch
A detailed analysis of tool use behaviors can disclose the underlying cognitive traits of the users. We investigated the technique used by wild chimpanzees to extract the underground nests of stingless bees (Meliplebeia lendliana), which represent a hard-to-reach resource given their highly undetectable location. Using remote-sensor camera trap footage, we analyzed 151 visits to 50 different bee nests by 18 adult chimpanzees of both sexes. We quantified the degree of complexity and flexibility of this technique by looking at the behavioral repertoire and at its structural organization...
May 2, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28460743/risk-factors-for-the-presence-of-deformed-wing-virus-and-acute-bee-paralysis-virus-under-temperate-and-subtropical-climate-in-argentinian-bee-colonies
#18
Ana Molineri, Agostina Giacobino, Adriana Pacini, Natalia Bulacio Cagnolo, Norberto Fondevila, Cecilia Ferrufino, Julieta Merke, Emanuel Orellano, Ezequiel Bertozzi, Germán Masciángelo, Hernán Pietronave, Marcelo Signorini
Beekeepers all across the world are suffering important losses of their colonies, and the parasitic mites Varroa destructor and Nosema sp, as well as several bee viruses, are being pointed out as the possible causes of these losses, generally associated with environmental and management factors. The objective of the present study was to evaluate the presence of seven virus species (Deformed wing virus -DWV-, Acute bee paralysis virus -ABPV-, Chronic bee paralysis virus -CBPV-, Black queen cell virus -BQCV-, Kashmir bee virus -KBV-, Israeli acute bee paralysis virus -IAPV-, and Sacbrood bee virus -SBV), as well as the prevalence of Nosema sp...
May 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28455796/effect-of-brood-pheromone-on-survival-and-nutrient-intake-of-african-honey-bees-apis-mellifera-scutellata-under-controlled-conditions
#19
Fabien J Démares, Abdullahi A Yusuf, Susan W Nicolson, Christian W W Pirk
The influence of pheromones on insect physiology and behavior has been thoroughly reported for numerous aspects, such as attraction, gland development, aggregation, mate and kin recognition. Brood pheromone (BP) is released by honey bee larvae to indicate their protein requirements to the colony. Although BP is known to modulate pollen and protein consumption, which in turn can affect physiological and morphological parameters, such as hypopharyngeal gland (HPG) development and ovarian activation, few studies have focused on the effect of BP on nutritional balance...
April 28, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28449942/prevalence-of-honey-bee-apis-mellifera-viruses-in-temperate-and-subtropical-regions-from-argentina
#20
Ana I Molineri, Adriana Pacini, Agostina Giacobino, Natalia Bulacio-Cagnolo, Andrea Aignasse, Luis Zago, Norberto Fondevila, Cecilia Ferrufino, Julieta Merke, Emanuel Orellano, Ezequiel Bertozzi, Hernán Pietronave, Marcelo L Signorini
In Argentina, bee virus studies are still incipient, and there are no studies regarding the climatic effect. The aim of this study was to assess and compare the presence of honeybee viruses in different climatic regions from Argentina. A total of 385 colonies distributed in five Argentinean eco-regions were examined to evaluate the percentage of infestation with Varroa destructor and the presence of seven virus species (Deformed wing virus, DWV; Acute bee paralysis virus, ABPV; Chronic bee paralysis virus, CBPV; Black queen cell virus, BQCV; Kashmer bee virus, KBV; Israeli acute bee paralysis virus, IAPV; and Sacbrood bee virus, SBV) after honey yield...
April 24, 2017: Revista Argentina de Microbiología
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