Support for mending the matrix: resource seeking by butterflies in apparent non-resource zones
Support for mending the matrix: resource seeking by butterflies in apparent non-resource zones
复制标题
支持修复矩阵：蝴蝶在明显的非资源区寻找资源
DOI：
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发表时间：
2007
影响因子：
1.9
通讯作者：
P. Hardy
中科院分区：
文献类型：
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作者：
R. Dennis;P. Hardy
在保护生物方面，通常采用两极观点来看待景观，即将资源分配给一块块栖息地，而忽略基质。将额外的资源分配给基质将取决于两个条件：第一，生物在景观中寻找资源，而不考虑植被类型和资源可获得性的差异；第二，当资源出现在基质中时，它们被物种利用。为了探讨飞行模式和资源可获得性之间的关系，研究了与生物群落和底物类型有关的三个种(菜青虫、菜青虫、菜青虫)的行为数据。搜索飞行和资源利用作为资源探索的衡量标准，除了直接线性飞行外，还广泛存在于所有生物区和所有底物上，更典型的是蝴蝶在栖息地单位之间迁徙时的情况。在一些通常被认为缺乏这些蝴蝶资源的生物区，资源的寻找和利用甚至超过了直接飞行。例如，林地中的白菜疫霉菌和灌木丛中的菜青霉就是这种情况。这一发现支持修复基质和加强生境斑块外的一般农村地区的观点，为生物提供的资源越来越多。但条件是，物种的需求得到了充分的研究和资源，以免成为水槽。
In conserving organisms, a bipolar view has generally been adopted of landscapes, in which resources are allocated to patches of habitats and the matrix ignored. Allocating additional resources to the matrix would depend on two conditions: first, that organisms search for resources in landscapes regardless of differences in vegetation types and resource availability; second, that when resources occur in the matrix they are used by species. Behavioural data linked to biotope and substrate types, on three pierid species (Pieris brassicae, P. rapae, P. napi), have been examined to explore the relationship between flight modes and resource availability. Search flight and resource use, taken as measures of resource quests, occur extensively in all biotopes and over all substrates in addition to direct linear flight, more typical of butterflies when migrating between habitat units. Resource seeking and using even exceed direct flight in some biotopes that have been regarded generally as lacking in resources for these butterflies. For example, such is the case for P. brassicae in woodland and for P. rapae in scrub. This finding supports the view for repairing the matrix and enhancing the general countryside outside habitat patches with resources increasingly being made for organisms. The proviso is that species’ requirements are adequately researched and resourced so as not to become sinks.