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Using satellite telemetry and environmental niche modelling to inform conservation targets for a long-distance migratory raptor in its wintering grounds

机译：使用卫星遥测和环境生态位建模为冬季迁徙的长途猛禽提供保护目标

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摘要

Understanding the ecology of migratory birds during the non-breeding season is necessary for ensuring their conservation. Using satellite telemetry data we describe winter ranging behaviour and movements of pallid harriers Circus macrourus that bred in Kazakhstan. We developed an ecological niche model for the species in Africa, to identify the most suitable wintering areas for pallid harriers and the importance of habitat in determining the location of those areas. We also assessed how well represented suitable areas are in the network of protected areas. Individual harriers showed relatively high fidelity to wintering areas but with potential for interannual changes. The ecological niche model highlighted the importance of open habitats with natural vegetation. Most suitable areas for the species were located in eastern Africa. Suitable areas had a patchy distribution but were relatively well included in the network of protected areas. The preferential use of habitats with natural vegetation bywintering pallid harriers and the patchiness of the most suitable areas highlight the harrier's vulnerability to land-use changes and the associated loss of natural vegetation in Africa. Conservation of harriers could be enhanced by preserving natural grasslands within protected areas and improving habitat management in the human-influenced portions of the species' core wintering areas.
机译：了解候鸟在非繁殖季节的生态对确保其保护很有必要。使用卫星遥测数据，我们描述了在哈萨克斯坦繁殖的苍白马戏团马戏团的冬季测距行为和运动。我们为非洲物种开发了一种生态位模型，以确定最适合苍白的越冬区域以及栖息地在确定这些区域位置中的重要性。我们还评估了保护区网络中适当区域的代表性。个别的rier对越冬地区表现出较高的保真度，但可能会发生年际变化。生态位模型强调了具有自然植被的开放生境的重要性。最适合该物种的地区位于非洲东部。合适的区域分布不规则，但相对较好地包含在保护区网络中。冬季通过苍白的栖息地优先使用天然植被的栖息地，以及最合适的地区的零星分布，突显了the的脆弱性对土地利用的变化以及非洲自然植被的相关损失。可以通过在保护区内保护天然草原并改善物种核心越冬区中受人类影响的部分的栖息地管理来加强对的保护。

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