نتایج جستجو برای: bee feeding
تعداد نتایج: 123893 فیلتر نتایج به سال:
Bee sting in most situations is life threatening. Spectrum of bee sting ranges from mild local reaction to death. The literature regarding the bee sting disease from India is sparse. The rare manifestations of the disease include encephalitis, polyneuritis, myocardial infarction, pulmonary edema, bleeding manifestations, and renal failure. Bee sting infections are rare and no field studies have...
The artificial bee colony (ABC) algorithm is a swarm-based metaheuristic optimization technique, developed by inspiring foraging and dance behaviors of honey bee colonies. ABC consists of four phases named as initialization, employed bee, onlooker bee and scout bee. The employed bees try to improve their solution in employed bees phase. If an employed bee cannot improve self-solution in a certa...
Recent developments of new families of pesticides and growing awareness of the importance of wild pollinators for crop pollination have stimulated interest in potential effects of novel pesticides on wild bees. Yet pesticide toxicity studies on wild bees remain rare, and few studies have included long-term monitoring of bumble bee colonies or testing of foraging ability after pesticide exposure...
Bees are the most important pollinators of agricultural plants. The decline bee colonies is caused by a multitude factors which diseases, pesticides, and climate change seem to be important. Losses can huge when several act together. In recent years, there has been growing interest in use alternative sources such as medicinal plants form extracts or essential oils. purpose our research was eval...
The cAMP-dependent protein kinase A is involved in the induction of long-term memory and habituation in the bee. Gustatory responsiveness correlates strongly with associative and non-associative learning in bees. We tested whether protein kinase A activity in the antennal lobes correlates with gustatory responsiveness. Thirty minutes after feeding, bees with high gustatory responsiveness had a ...
Received Accepted Social insects display task-related division of labour. In some species, division of labour is related to differences in body size, and worker caste members display morphological adaptations suited for particular tasks. Bumble-bee workers (Bombus spp.) can vary in mass by eightto tenfold within a single colony, which previous work has linked to division of labour. However, lit...
Biodiversity is important for many ecosystem processes. Global declines in pollinator diversity and abundance have been recognized, raising concerns about a pollination crisis of crops and wild plants. However, experimental evidence for effects of pollinator species diversity on plant reproduction is extremely scarce. We established communities with 1-5 bee species to test how seed production o...
Honey bee Apis mellifera L. colonies produce two distinct phenotypes of workers during summer and winter to cope with drastic seasonal variations in climate food resources. Imidacloprid (IMP) is a neonicotinoid insecticide widely used agriculture for pest management control. In this study, we investigate the influence phenotype emerging conditions on diet behavior bees fed ad libitum concentrat...
Bee breed is an important factor in determining bee family development and productivity, as it affects honey production, disease resistance, climate adaptation, behaviour characteristics. The purpose of the study was to establish relationship between methods mating queens morphological characteristics bees Ukrainian steppe productive indicators colonies. To conduct research, 43 colonies with qu...
Honey bee sting is used in some societies as a treatment of inflammation in joint diseases such as arthritis. To investigate the effect of honey bee venom in reducing inflammation, we selected 30 male Wister rats which were divided in to 6 groups. Except group 1, all remaining groups received 0.5 ml of complete Freund’s adjuvant to induce arthritis. After 9 days, all animals that received adj...
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