Broad‐scale seasonal climate tracking is a consequence, not a driver, of avian migratory connectivity,Ecology Letters

当前位置： X-MOL 学术 › Ecol. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Broad‐scale seasonal climate tracking is a consequence, not a driver, of avian migratory connectivity
Ecology Letters ( IF 7.6 ) Pub Date : 2024-08-12 , DOI: 10.1111/ele.14496
Marius Somveille _{1,

2,

3} , Christen M Bossu ₂ , Matthew G DeSaix ₂ , Allison H Alvarado ₄ , Sergio Gómez Villaverde ₅ , Genaro Rodríguez Otero ₆ , Blanca E Hernández-Baños ₆ , Thomas B Smith _{7,

8} , Kristen C Ruegg ₂

Affiliation

Tracking climatic conditions throughout the year is often assumed to be an adaptive behaviour underlying seasonal migration patterns in animal populations. We investigate this hypothesis using genetic markers data to map migratory connectivity for 27 genetically distinct bird populations from 7 species. We found that the variation in seasonal climate tracking across our suite of populations at a continental scale is more likely a consequence, rather than a direct driver, of migratory connectivity, which is primarily shaped by energy efficiency—i.e., optimizing the balance between accessing available resources and movement costs. However, our results also suggest that regional‐scale seasonal precipitation tracking affects population migration destinations, thus revealing a potential scale dependency of ecological processes driving migration. Our results have implications for the conservation of these migratory species under climate change, as populations tracking climate seasonally are potentially at higher risk if they adapt to a narrow range of climatic conditions.

中文翻译：

大范围的季节性气候追踪是鸟类迁徙连通性的结果，而不是驱动因素

跟踪全年气候条件通常被认为是动物种群季节性迁徙模式的适应性行为。我们使用遗传标记数据来研究这一假设，以绘制来自 7 个物种的 27 个遗传上不同的鸟类种群的迁徙连通性。我们发现，在大陆范围内，我们的人群的季节性气候跟踪变化更有可能是迁徙连通性的结果，而不是直接驱动因素，而迁徙连通性主要是由能源效率决定的，即优化获取可用资源之间的平衡。资源和移动成本。然而，我们的结果还表明，区域尺度的季节性降水跟踪会影响人口迁移目的地，从而揭示驱动迁移的生态过程的潜在规模依赖性。我们的研究结果对气候变化下这些迁徙物种的保护具有影响，因为季节性跟踪气候的种群如果适应狭窄的气候条件，可能会面临更高的风险。

更新日期：2024-08-12

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南