DOI: 10.1111/ele.13683
论文题名: Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment
作者: Klaus F. ; Tscharntke T. ; Bischoff G. ; Grass I.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 4 起始页码: 668
结束页码: 675
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166863
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Klaus F.,Tscharntke T.,Bischoff G.,et al. Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment[J]. Ecology Letters,2021-01-01,24(4)