Pesticide exposure and forage shortage in rice cropping system prevents honey bee colony establishment
文献类型: 外文期刊
第一作者: Liu, Feng
作者: Liu, Feng;Zhang, Chuanlian;Zhou, Weiliang;Xu, Xijian;Shou, Qinyi;Yuan, Fang;Li, Qian;Huang, Huijun;Hu, Jinghua;Jiang, Wujun;Qin, Jiamin;Ye, Wuguang;Liu, Feng;Dai, Pingli;Zhang, Ge;Qin, Jiamin
作者机构:
关键词: Forest; Insecticide; Pesticide; Floral resource; Apis mellifera; Colony health
期刊名称:ENVIRONMENTAL RESEARCH ( 影响因子:8.3; 五年影响因子:8.2 )
ISSN: 0013-9351
年卷期: 2023 年 219 卷
页码:
收录情况: SCI
摘要: As one of the key stable crops to feed half of the world's population, how rice cropping system affects honey bee health regarding pesticide exposure and forage availability is under investigated. We predicted honey bees were stressed by high pesticide exposure and forage dearth in monoculture rice systems. Providing access to natural habitats is a typical approach to mitigate the negative impact of intensive agriculture on honey bees. We aimed to determine if bee colonies located in landscapes with more cover of forest habitat would collect more forage and be exposed to less pesticides. We selected beekeeping locations in rice dominated landscapes (as control), mosaic landscapes of rice and medium woodland (MW) cover, and landscapes of high woodland (HW) cover, respectively, in July when rice starts bloom and pesticides are commonly used. Colonies were inspected at a biweekly frequency from July to October with population growth and forage (nectar and pollen) availability estimated. Pollen and bees were collected in middle August for pesticide exposure analysis. We did not observe enhancement in forage availability and reduction in pesticide exposure in landscapes with increased forest habitat (i.e., MW or HW cover), and all colonies failed in the end. Other natural habitats that can supplement flower shortage periods in forest can be considered for supporting bee health. Our results suggest that forest should be carefully assessed for being incorporated into beekeeping management or pollinator conservation when forest phenology can be a factor to affect its impact as a natural habitat.
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