A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems
A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems
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DOI：
10.1111/ele.12082
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发表时间：
2013-05-01
期刊：
影响因子：
8.8
通讯作者：
Kremen, Claire
中科院分区：
文献类型：
--
作者：
Kennedy, Christina M.;Lonsdorf, Eric;Kremen, Claire
蜜蜂提供必要的授粉服务，但这些服务可能受到当地农场管理和周围景观的影响。为了更好地理解这些不同的因素，我们模拟了景观组成（觅食距离内的筑巢和花卉资源）、景观配置（斑块形状、斑块间连通性和栖息地聚集）和农场管理（有机vs传统和局部尺度的田间多样性）及其相互作用对全球39种作物系统野生蜜蜂丰度和丰富度的相对影响。蜜蜂的丰度和丰富度在多样化和有机的农田和高质量生境的景观中较高；低多样性常规农田的蜜蜂丰富度受益于高质量的周围土地覆盖。景观配置效应较弱。蜜蜂的反应因生物群系而异。我们的综合研究表明，传粉者的持久性将取决于对农场周围高质量栖息地的维持，以及可能抵消集约化单一农业影响的当地管理措施。
Bees provide essential pollination services that are potentially affected both by local farm management and the surrounding landscape. To better understand these different factors, we modelled the relative effects of landscape composition (nesting and floral resources within foraging distances), landscape configuration (patch shape, interpatch connectivity and habitat aggregation) and farm management (organic vs. conventional and local-scale field diversity), and their interactions, on wild bee abundance and richness for 39 crop systems globally. Bee abundance and richness were higher in diversified and organic fields and in landscapes comprising more high-quality habitats; bee richness on conventional fields with low diversity benefited most from high-quality surrounding land cover. Landscape configuration effects were weak. Bee responses varied slightly by biome. Our synthesis reveals that pollinator persistence will depend on both the maintenance of high-quality habitats around farms and on local management practices that may offset impacts of intensive monoculture agriculture.