منابع مشابه
folding-leg hives for honey bee
abstrac: in recent years, honey bee products other than just honey such as pollen, propolis, waxes and venoms have gained considerable attention. hive is the most important tool in honey bee industry, the proper construction of which could play a key role in improving honey bee production. since 1382, investigations have been done on hives made inside the country to eliminate deficiencies s...
متن کاملInfluence of honey bee, Apis mellifera, hives and field size on foraging activity of native bee species in pumpkin fields.
The purpose of this study was to identify bee species active in pumpkin fields in New York and to estimate their potential as pollinators by examining their foraging activity. In addition, we examined whether foraging activity was affected by either the addition of hives of the honey bee, Apis mellifera L., or by field size. Thirty-five pumpkin (Cucurbita spp.) fields ranging from 0.6 to 26.3 ...
متن کاملFactors Affecting Global Bee Health Honey Bee Health and Population Losses in Managed Bee Colonies
متن کامل
Bee afraid , bee very afraid - neonicotinoids and the nAChRs family
The reasons for the decline are currently not clear. However, some studies have linked the reduction in bee numbers to a widely-used class of pesticides, neonicotinoids, that have been broadly administered in large-scale crop production since the mid 1990’s – the same time that mass bee disappearances started to be reported 2. These nicotine-like chemicals, which include three key neonicotinoid...
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ژورنال
عنوان ژورنال: Science
سال: 1886
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-7.157s.127