نتایج جستجو برای: honey bee mating optimization

تعداد نتایج: 360998  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Kevin W Wanner Andrew S Nichols Kimberly K O Walden Axel Brockmann Charles W Luetje Hugh M Robertson

By using a functional genomics approach, we have identified a honey bee [Apis mellifera (Am)] odorant receptor (Or) for the queen substance 9-oxo-2-decenoic acid (9-ODA). Honey bees live in large eusocial colonies in which a single queen is responsible for reproduction, several thousand sterile female worker bees complete a myriad of tasks to maintain the colony, and several hundred male drones...

Journal: :Journal of invertebrate pathology 2006
Jay D Evans

Honey bees and other insects face many important parasites and pathogens against which they have evolved behavioral, morphological, physiological, and immune-based defenses. To help validate honey bee immune-gene candidates and determine their responsiveness to pathogens, a quantitative-PCR array was developed to measure transcript levels for 48 honey bee and pathogen genes in parallel. It is s...

Journal: :Appl. Soft Comput. 2015
Mustafa Servet Kiran

Artificial bee colony (ABC) algorithm, one of the swarm intelligence algorithms, has been proposed for continuous optimization, inspired intelligent behaviors of real honey bee colony. For the optimization problems having binary structured solution space, the basic ABC algorithm should be modified because its basic version is proposed for solving continuous optimization problems. In this study,...

2016
Laura M. Brutscher Alexander J. McMenamin Michelle L. Flenniken

High annual losses of honey bees, as well as range reductions and local extinctions of wild and native pollinator species, are concerning because bees are important plant pollinators [1]. Approximately one-third of the typical Western diet requires bee pollination, and honey bees (Apis mellifera) are the primary pollinators of numerous food crops, including fruits, nuts, vegetables, and oilseed...

2014
Catherine E. Thompson Jacobus C. Biesmeijer Theodore R. Allnutt Stéphane Pietravalle Giles E. Budge

Feral honey bee populations have been reported to be in decline due to the spread of Varroa destructor, an ectoparasitic mite that when left uncontrolled leads to virus build-up and colony death. While pests and diseases are known causes of large-scale managed honey bee colony losses, no studies to date have considered the wider pathogen burden in feral colonies, primarily due to the difficulty...

P. Hristov R. Balkanska, R. Shumkova

The aim of the study was to estimate the impact of antibiotic doxycycline on the spring development of the bee colonies, worker bees’ bodies chemical composition, development of hypopharyngeal glands and some physicochemical parameters of honey. The experiment was conducted during the spring stimulating feeding at apiary of Research Center of Stockbreeding and Agriculture, Smolyan, Bulgaria. Tw...

2013
Bu Yang Guangda Peng Tianbang Li Tatsuhiko Kadowaki

China has the largest number of managed honey bee colonies, which produce the highest quantity of honey and royal jelly in the world; however, the presence of honey bee pathogens and parasites has never been rigorously identified in Chinese apiaries. We thus conducted a molecular survey of honey bee RNA viruses, Nosema microsporidia, protozoan parasites, and tracheal mites associated with nonna...

2013
Humberto F. Boncristiani Jay D. Evans Yanping Chen Jeff Pettis Charles Murphy Dawn L. Lopez Michael Simone-Finstrom Micheline Strand David R. Tarpy Olav Rueppell

The ongoing decline of honey bee health worldwide is a serious economic and ecological concern. One major contributor to the decline are pathogens, including several honey bee viruses. However, information is limited on the biology of bee viruses and molecular interactions with their hosts. An experimental protocol to test these systems was developed, using injections of Israeli Acute Paralysis...

2015
Anika Hudewenz Alexandra‐Maria Klein

Intensive beekeeping to mitigate crop pollination deficits and habitat loss may cause interspecific competition between bees. Studies show negative correlations between flower visitation of honey bees (Apis mellifera) and wild bees, but effects on the reproduction of wild bees were not proven. Likely reasons are that honey bees can hardly be excluded from controls and wild bee nests are general...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2001
A Ozkirim N Keskin

The aim of this study is to find out the ratio of Nosema infected honey bees which are producing the famous Anzer honey that is used for the cure of the illnesses such as farangitis, tonsilitis, ulceration, and scratchs due to the experiences of the people living in Turkey. Honey bee samples were collected from two different regions of Anzer plain in July. Honey bee abdomens were homogenized an...

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