Annual cycle and migration strategies of a habitat specialist, the Tawny Pipit Anthus campestris, revealed by geolocators
Annual cycle and migration strategies of a habitat specialist, the Tawny Pipit Anthus campestris, revealed by geolocators
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DOI：
10.1007/s10336-015-1313-3
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发表时间：
2016-04-01
影响因子：
1.3
通讯作者：
Adamik, Peter
中科院分区：
文献类型：
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作者：
Briedis, Martins;Beran, Vaclav;Adamik, Peter
栖息地专业物种占据狭窄的生态位，通常在整个年度周期中利用类似的栖息地类型。它们对特定生境的严格要求可能使它们易受环境变化的影响，特别是在小的当地种群中。因此，详细了解物种的生态学对于保护目的至关重要。在这项研究中，我们使用光级地理定位器，以确定迁徙路线和非繁殖区的一个独特的专家干燥的栖息地，黄褐色的皮皮Anthus campestris，从目前下降的中欧繁殖人口。在秋季和春季迁徙期间，大多数鸟类沿着沿着阿尔卑斯山西北部的路线，并通过伊比利亚半岛，中途停留地点主要在北方非洲。然而，在每个迁徙季节，两个不同的个体中的一个绕着阿尔卑斯山的东侧绕行。当穿越主要的生态屏障撒哈拉沙漠时，六分之三的鸟在秋天沿着大西洋海岸线迁徙，而所有五只鸟在春天都迁移到海岸附近。所有被追踪的鲣鸟的非繁殖区都统一位于西萨赫勒，六只鸟中有五只利用两个主要的非繁殖区，其中第二个总是位于第一个的以西。平均而言，被跟踪的鸟类一年中有48%的时间在非繁殖区，27%在迁徙，25%在繁殖地。我们的研究结果表明，强大的迁移连接在茶色皮皮这可能有未来的影响，保护这个长途移民。
Habitat specialist species occupy narrow ecological niches, typically utilizing similar habitat types throughout the annual cycle. Their strict requirements for specific habitats may make them vulnerable to environmental changes, especially in small, local populations. Therefore, detailed knowledge of the species' ecology is crucial for conservation purposes. In this study, we used light-level geolocators to identify migration routes and non-breeding areas of a distinct specialist for dry habitats, the Tawny Pipit Anthus campestris, from a currently declining central European breeding population. During autumn and spring migration, the majority of the birds followed a route along the northwest of the Alps and via the Iberian Peninsula, with stopover sites mainly in northern Africa. In each migration season, however, one of two different individuals took a detour around the eastern side of the Alps. When crossing the main ecological barrier, the Sahara Desert, three of six birds followed the Atlantic coastline in autumn, whereas all five birds migrated near the coast in spring. Non-breeding areas of all tracked pipits were uniformly located in the Western Sahel, with five of six birds utilizing two main non-breeding sites, the second of which was always located west of the first. On average, the tracked birds spent 48 % of the year at the non-breeding areas, 27 % on migration, and 25 % at the breeding site. Our findings demonstrate strong migratory connectivity in Tawny Pipits which may have future implications for conservation of this long-distance migrant.