نتایج جستجو برای: cleptoparasitic bee

تعداد نتایج: 13613  

2015
David J. Torres Ulises M. Ricoy Shanae Roybal Olav Rueppell

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 th...

2017
Kenneth W. McCravy Jared D. Ruholl

Forests provide potentially important bee habitat, but little research has been done on forest bee diversity and the relative effectiveness of bee sampling methods in this environment. Bee diversity and sampling methodology were studied in an Illinois, USA upland oak-hickory forest using elevated and ground-level pan traps, malaise traps, and vane traps. 854 bees and 55 bee species were collect...

Journal: :Journal of invertebrate pathology 2005
Yanping Chen Jeffery S Pettis Mark F Feldlaufer

Individual honey bee Apis mellifera L. queens were examined for the presence of six honey bee viruses including acute bee paralysis virus, chronic bee paralysis virus, black queen cell virus, deformed wing virus, Kashmir bee virus, and sacbrood virus. All viruses, except ABPV, were detected in the samples. Among queens examined for virus infections, 93% had multiple virus infections. The detect...

2009
E. Yue Zhu Ye Ping Liu Sheng Ping

This paper is the use of modern information technology, research the quality of bee product tracking and traceability system based on Agent. On the one hand, through establish the quality of bee product tracking and traceability system, to provide a technical support and general-purpose tools, it includes bee products from production to sales for the entire process digital, visual expression, d...

2011
Milos Subotic

In this paper we present a modification of artificial bee colony (ABC) algorithm for constrained optimization problems. In nature more than one onlooker bee goes to a promising food source reported by employed bee. Our proposed modification forms a mutant solution in onlooker phase using three onlookers. This approach obtains better results than the original artificial bee colony algorithm. Our...

2012
Jae Woo Jung Eun Ju Jeon Jeong Wook Kim Jae Chol Choi Jong Wook Shin Jae Yeol Kim In Won Park Byoung Whui Choi

Bee stings can cause severe adverse reactions, leading to anaphylaxis, cardiovascular collapse, and death. In some cases, bee venom also induces disseminated intravascular coagulation (DIC). However, to our knowledge, there has been no fatal case of intravascular coagulation accompanied by anaphylaxis caused by bee sting acupuncture. Here, we report a fatal case of a 65-year-old woman with DIC,...

Journal: :Science 2006
G O Poinar B N Danforth

The bee fossil record is fragmentary, making it difficult to accurately estimate the antiquity of bee-mediated pollination. Here, we describe a bee fossil [Melittosphex burmensis (new species), Melittosphecidae (new family)] from Early Cretaceous Burmese amber (approximately 100 million years before the present). The fossil provides insights into the morphology of the earliest bees and provides...

Journal: :Allergologia et immunopathologia 2010
M F Martín-Muñoz B Bartolome M Caminoa I Bobolea M C Garcia Ara S Quirce

BACKGROUND Bee pollen has been proposed as a food supplement, but it can be a dangerous food for people with allergy. We study an allergic reaction after ingestion of bee pollen in a 4-year-old boy who had developed rhinitis in the last spring and autumn. METHODS We performed a prick-by-prick test with bee pollen and skin prick tests with the most important local pollens, house dust mites, co...

2016
Matthew D. Smart Jeff S. Pettis Ned Euliss Marla S. Spivak

The Northern Great Plains region of the US annually hosts a large portion of commercially managed U.S. honey bee colonies each summer. Changing land use patterns over the last several decades have contributed to declines in the availability of bee forage across the region, and the future sustainability of the region to support honey bee colonies is unclear. We examined the influence of varying ...

Journal: :Biological & pharmaceutical bulletin 2016
Seeun Park Sedef Erdogan Dahyun Hwang Seonwook Hwang Eun Hye Han Young-Hee Lim

Alopecia is an important issue that can occur in people of all ages. Recent studies show that bee venom can be used to treat certain diseases including rheumatoid arthritis, neuralgia, and multiple sclerosis. In this study, we investigated the preventive effect of bee venom on alopecia, which was measured by applying bee venom (0.001, 0.005, 0.01%) or minoxidil (2%) as a positive control to the...

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