气候变化领域集成服务门户(CCPortal): Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects

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DOI	10.1111/ele.13683
	Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment
	Klaus F.; Tscharntke T.; Bischoff G.; Grass I.
发表日期	2021
ISSN	1461023X
起始页码	668
结束页码	675
卷号	24 期号:4
英文摘要	Pollinator declines in agricultural landscapes are driven by multiple stressors, but potential interactions of these remain poorly studied. Using a highly replicated semi-field study with 56 mesocosms of varying wild plant diversity (2–16 species) and oilseed rape treated with a neonicotinoid, we tested the interacting effects of resource diversity and insecticides on reproduction of a solitary wild bee. Compared to mesocosms with oilseed rape monocultures, availability of resources from wild plants complementing oilseed rape doubled brood cell production. In addition, bee reproduction increased due to plant diversity and identity effects. Exposure to neonicotinoid-treated oilseed rape reduced bee larval to adult development by 69%, but only in mesocosms with oilseed rape monocultures. Availability of complementary flower resources can thus offset negative effects of neonicotinoid-treated oilseed rape on wild bee reproduction. Policy should encourage the implementation of diverse floral resources mitigating negative effects of crop monocultures and insecticides, thereby sustaining solitary bee populations in agricultural landscapes. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
关键词	Complementary resources neonicotinoids Osmia bicornis plant diversity and identity pollinator declines
英文关键词	Brassica napus; insecticide; neonicotinoid; animal; bee; crop; pollination; reproduction; Animals; Bees; Crops, Agricultural; Insecticides; Neonicotinoids; Pollination; Reproduction
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204422
作者单位	University of Göttingen, Agroecology, Göttingen, Germany; Julius Kühn-Institute (JKI) - Federal Research Centre for Cultivated Plants, Institute for Bee Protection, Berlin, Germany; University of Hohenheim, Ecology of Tropical Agricultural Systems, Stuttgart, Germany
推荐引用方式 GB/T 7714	Klaus F.,Tscharntke T.,Bischoff G.,等. Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment[J],2021,24(4).
APA	Klaus F.,Tscharntke T.,Bischoff G.,&Grass I..(2021).Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment.Ecology Letters,24(4).
MLA	Klaus F.,et al."Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment".Ecology Letters 24.4(2021).