The decline and conservation of bumblebees
نویسندگان
چکیده
Introduction Consequences of declines in bumblebee populations Causes of bumblebee declines Reductions in floral resources Loss of nest sites Pesticides Impacts of non-native bees Habitat fragmentation and population structure Why do some bumblebee species remain common? Conserving bumblebees Enhancing bumblebee diversity in farmland The importance of urban areas Conclusions Summary Points Unresolved Issues References
منابع مشابه
Insecticide Resistence of Bumblebee Species
Bumblebees are important pollinators of many crops and wild flowers and there are both conservation and economic reasons for taking action to assess the impact of pesticides on bumblebees. Pesticide risk assessments for honeybees are based on hazard ratios which rely on application rates and toxicity data and are unlikely to be appropriate for bumblebees. Bumblebees are active at different time...
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