摘要详情
179 / 2024-09-10 18:30:01
Historical biological invasions offer new light on shifting distributions of marine species in a changing world
invasive species,marine,environmental niche,niche change
摘要待审
Anticipating the response of species to future environmental conditions remains fundamental to conservation. Historical patterns in the global spread of non-native species offer new insight into how key environmental drivers may shift species distributions in the future, including in response to climate change. If the past environmental drivers predict future distributions, we would expect high overlap in niche space between native and introduced ranges, with a species’ introduced niche increasingly resembling their native niche over time. In this study, we quantified changes in species’ occupied niche space across 200 years of invasion records, for 737 marine invaders at the global scale. We found that for species in introduced ranges, the majority of their native niche space remained unfilled, even after two centuries. As expected, overlap between native and introduced niche spaces did increase with time since invasion. However, niche overlap remained low on average, never exceeding 25% across species, and remained less than 15% for invasions <70 years. Moreover, the degree of niche expansion into new environments in the introduced range was as great as the overlap with the native niche space. Thus, our results suggest that historical correlations with environmental drivers will largely fail to predict future species ranges in marine ecosystems, within policy relevant (decadal) time frames, and that new niche space is as likely to be colonized as historical niches.
重要日期
-
会议日期
01月14日
2025
至01月17日
2025
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09月27日 2024
初稿截稿日期
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12月14日 2024
注册截止日期
主办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
联系方式
- JKejing GU
- xm******@xmu.edu.cn
- +86*********
