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DOI | 10.1111/gcb.17069 |
Global temperature homogenization can obliterate temporal isolation in migratory animals with potential loss of population structure | |
发表日期 | 2024 |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
起始页码 | 30 |
结束页码 | 1 |
卷号 | 30期号:1 |
英文摘要 | Climate change is expected to increase the spatial autocorrelation of temperature, resulting in greater synchronization of climate variables worldwide. Possibly such 'homogenization of the world' leads to elevated risks of extinction and loss of biodiversity. In this study, we develop an empirical example on how increasing synchrony of global temperatures can affect population structure in migratory animals. We studied two subspecies of bar-tailed godwits Limosa lapponica breeding in tundra regions in Siberia: yamalensis in the west and taymyrensis further east and north. These subspecies share pre- and post-breeding stopover areas, thus being partially sympatric, but exhibiting temporal segregation. The latter is believed to facilitate reproductive isolation. Using satellite tracking data, we show that migration timing of both subspecies is correlated with the date of snowmelt in their respective breeding sites (later at the taymyrensis breeding range). Snow-cover satellite images demonstrate that the breeding ranges are on different climate trajectories and become more synchronized over time: between 1997 and 2020, the date of snowmelt advanced on average by 0.5 days/year in the taymyrensis breeding range, while it remained stable in the yamalensis breeding range. Previous findings showed how taymyrensis responded to earlier snowmelt by advancing arrival and clutch initiation. In the predicted absence of such advancements in yamalensis, we expect that the two populations will be synchronized by 2036-2040. Since bar-tailed godwits are social migrants, this raises the possibility of population exchange and prompts the question whether the two subspecies can maintain their geographic and morphological differences and population-specific migratory routines. The proposed scenario may apply to a wide range of (social) migrants as temporal segregation is crucial for promoting and maintaining reproductive isolation in many (partially sympatric) migratory populations. Homogenization of previously isolated populations could be an important consequence of increasing synchronized environments and hence climate change. |
英文关键词 | climate change; Limosa lapponica taymyrensis; Limosa lapponica yamalensis; long-distance migration; snowmelt; temporal segregation |
语种 | 英语 |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS记录号 | WOS:001127035800001 |
来源期刊 | GLOBAL CHANGE BIOLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287086 |
作者单位 | Utrecht University; Royal Netherlands Institute for Sea Research (NIOZ); University of Groningen; University of Groningen; Universidade de Aveiro; Universidade de Aveiro; University of Iceland; University of Amsterdam |
推荐引用方式 GB/T 7714 | . Global temperature homogenization can obliterate temporal isolation in migratory animals with potential loss of population structure[J],2024,30(1). |
APA | (2024).Global temperature homogenization can obliterate temporal isolation in migratory animals with potential loss of population structure.GLOBAL CHANGE BIOLOGY,30(1). |
MLA | "Global temperature homogenization can obliterate temporal isolation in migratory animals with potential loss of population structure".GLOBAL CHANGE BIOLOGY 30.1(2024). |
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