Diet diversity and pesticide risk mediate the negative effects of land use change on solitary bee offspring production,Journal of Applied Ecology

当前位置： X-MOL 学术 › J. Appl. Ecol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Diet diversity and pesticide risk mediate the negative effects of land use change on solitary bee offspring production
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2020-04-07 , DOI: 10.1111/1365-2664.13600
Mary Centrella ₁ , Laura Russo ₂ , Natalia Moreno Ramírez ₃ , Brian Eitzer ₄ , Maria Dyke ₅ , Bryan Danforth ₅ , Katja Poveda ₅

Affiliation

Threats to bee pollinators such as land use change, high pesticide risk and reduced floral diet diversity are usually assessed independently, even though they often co-occur to impact bees in agroecosystems. We established populations of the non-native mason bee Osmia cornifrons at 17 NY apple orchards varying in proportion of surrounding agriculture and measured floral diet diversity and pesticide risk levels in the pollen provisions they produced. We used path analysis to test the direct and indirect effects of different habitats, diet diversity and pesticide risk on emergent female offspring number and weight. High proportions of agricultural habitat surrounding bee nests indirectly reduced the number of female offspring produced, by reducing floral diet diversity in pollen. When the proportion of agriculture surrounding bee nests was high, bees collected increased proportions of Rosaceae in their pollen provisions, which marginally (0.05

中文翻译：

饮食多样性和农药风险介导了土地利用变化对孤蜂后代生产的负面影响

对蜜蜂授粉媒介的威胁，例如土地利用变化、高农药风险和减少的花卉饮食多样性，通常是独立评估的，尽管它们经常同时发生，影响农业生态系统中的蜜蜂。我们在 17 个纽约苹果园建立了非本地梅森蜂 Osmia 玉米花的种群，周围农业的比例各不相同，并测量了它们生产的花粉供应中的花卉饮食多样性和农药风险水平。我们使用路径分析来测试不同栖息地、饮食多样性和农药风险对新生雌性后代数量和体重的直接和间接影响。通过减少花粉中的花卉饮食多样性，蜂巢周围高比例的农业栖息地间接减少了产生的雌性后代的数量。当蜂巢周围的农业比例高时，

更新日期：2020-04-07

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11