The 'migratory connectivity' concept, and its applicability to insect migrants.
The 'migratory connectivity' concept, and its applicability to insect migrants.
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DOI：
10.1186/s40462-020-00235-5
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发表时间：
2020-12-04
期刊：
影响因子：
4.1
通讯作者：
Chapman JW
中科院分区：
文献类型：
--
作者：
Gao B;Hedlund J;Reynolds DR;Zhai B;Hu G;Chapman JW
迁徙连通性描述了动物迁徙范围不同部分之间由于个体运动轨迹而产生的联系程度。当来自迁徙范围的一个特定部分的个体几乎完全迁移到迁徙范围的另一个局部部分而很少与来自其他地区的个体混合时，就会出现高连通性。相反，低迁徙连通性描述了个体在迁徙过程中分布在广阔区域并与来自其他地方的个体进行了很大程度的混合的情况。迁徙连通性概念经常应用于脊椎动物迁徙（特别是鸟类），并且与种群的保护和管理高度相关。然而，它很少在昆虫迁徙文献中使用，主要是因为对大多数迁徙昆虫的迁徙路线的了解远少于对鸟类的了解。在这篇综述中，我们讨论了迁徙连通性概念对远程昆虫迁徙的适用性。与鸟类相反，昆虫迁徙回路通常包括地理上非结构化（非离散）种群在广阔纬度区域之间的多代运动。此外，与飞行速度更快的鸟类相比，对运动方向的控制程度较低也往往会减少许多昆虫迁徙的连通性。尽管如此，在考虑到这些差异后，我们认为迁徙连通性框架仍然可以应用于昆虫，并且我们继续考虑一些最深入研究的昆虫迁徙的假定连通性水平。我们的结论是，更好地了解昆虫迁徙的连通性对于保护受威胁物种和管理害虫具有重要意义。
Migratory connectivity describes the degree of linkage between different parts of an animal’s migratory range due to the movement trajectories of individuals. High connectivity occurs when individuals from one particular part of the migratory range move almost exclusively to another localized part of the migratory range with little mixing with individuals from other regions. Conversely, low migratory connectivity describes the situation where individuals spread over a wide area during migration and experience a large degree of mixing with individuals from elsewhere. The migratory connectivity concept is frequently applied to vertebrate migrants (especially birds), and it is highly relevant to conservation and management of populations. However, it is rarely employed in the insect migration literature, largely because much less is known about the migration circuits of most migratory insects than is known about birds. In this review, we discuss the applicability of the migratory connectivity concept to long-range insect migrations. In contrast to birds, insect migration circuits typically comprise multigenerational movements of geographically unstructured (non-discrete) populations between broad latitudinal zones. Also, compared to the faster-flying birds, the lower degree of control over movement directions would also tend to reduce connectivity in many insect migrants. Nonetheless, after taking account of these differences, we argue that the migratory connectivity framework can still be applied to insects, and we go on to consider postulated levels of connectivity in some of the most intensively studied insect migrants. We conclude that a greater understanding of insect migratory connectivity would be of value for conserving threatened species and managing pests.
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影响因子：
3.3
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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DOI：
10.1098/rspb.2013.1087
发表时间：
2013-10-07
影响因子：
4.7
作者：
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通讯作者：
Norris, D. Ryan