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首页> 外文期刊>Agriculture, Ecosystems & Environment: An International Journal for Scientific Research on the Relationship of Agriculture and Food Production to the Biosphere >An agri-environmental scheme enhances butterfly dispersal in European agricultural landscapes. (Special Issue: Landscape ecology and biodiversity in agricultural landscapes.)
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An agri-environmental scheme enhances butterfly dispersal in European agricultural landscapes. (Special Issue: Landscape ecology and biodiversity in agricultural landscapes.)

机译：农业环境计划增强了蝴蝶在欧洲农业景观中的传播。 （特刊：农业景观中的景观生态学和生物多样性。）

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The loss of connectivity caused by habitat fragmentation is one of the greatest threats to biodiversity. This is of particular concern in agricultural landscapes, which combine increased levels of fragmentation with larger numbers of endangered species than other landscapes. Corridors (e.g. linear landscape elements) are a popular conservation strategy to counteract fragmentation effects. Grassy field margins (GFMs) have been established throughout Europe as part of agri-environmental schemes. The primary goal of these measures is to protect water quality, but it is suggested biodiversity may benefit via a corridor function. Being set up along watercourses, GFMs may spontaneously form a coherent network of corridors in agricultural landscapes. We tested this hypothesis by monitoring movement strategies of Meadow brown butterflies (Maniola jurtina L.) in GFMs. Results indicated that butterfly movement was facilitated by this new landscape element, supporting its corridor function. Mechanistically, dispersal occurred through foraging movements rather than movements adapted to dispersal. Spatial configurations of GFMs were also explored in a large agricultural area and demonstrated that the GFM policy is adequate to provide a corridor function.Digital Object Identifier http://dx.doi.org/10.1016/j.agee.2011.06.018
机译：生境破碎化造成的连通性丧失是对生物多样性的最大威胁之一。这在农业景观中尤为令人关注，与其他景观相比，农业景观将破碎程度提高，濒危物种数量增加。走廊（例如线性景观元素）是一种流行的保护策略，可以抵消碎片效应。作为农业环境计划的一部分，整个欧洲都建立了草丛边缘。这些措施的主要目标是保护水质，但建议通过走廊功能使生物多样性受益。 GFMs是沿着水道建立的，可以自发形成农业景观中连贯的走廊网络。我们通过监测GFM中的草甸棕蝴蝶（Maniola jurtina L.）的运动策略来检验该假设。结果表明，这种新的景观元素促进了蝴蝶的运动，并支持其走廊功能。从机械上讲，分散是通过觅食运动而不是适应于分散的运动而发生的。还在一个大型农业区中探索了GFM的空间配置，并证明了GFM政策足以提供走廊功能。数字对象标识符http://dx.doi.org/10.1016/j.agee.2011.06.018

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