气候变化领域集成服务门户(CCPortal): Gradual changes in range size accompany long-term trends in species richness

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DOI	10.1111/ele.12812
	Gradual changes in range size accompany long-term trends in species richness
	Batt R.D.; Morley J.W.; Selden R.L.; Tingley M.W.; Pinsky M.L.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:9
英文摘要	Species richness has long been used as an indicator of ecosystem functioning and health. Global richness is declining, but it is unclear whether sub-global trends differ. Regional trends are especially understudied, with most focused on island regions where richness is strongly impacted by novel colonisations. We addressed this knowledge gap by testing for multi-decade trends in species richness in nine open marine regions around North America (197 region-years) while accounting for imperfect observations and grounding our findings in species-level range dynamics. We found positive richness trends in eight of nine regions, four of which were statistically significant. Species' range sizes generally contracted pre-extinction and expanded post-colonisation, but the ranges of transient species expanded over the long-term, slowly increasing their regional retention and driving increasing richness. These results provide more evidence that sub-global richness trends are stable or increasing, and highlight the utility of range size for understanding richness dynamics. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Bottom trawl; detectability; marine; MSOM; occupancy; range size; regional; species distribution; species richness; time series
学科领域	biodiversity; ecosystem; island (geological); North America; Biodiversity; Ecosystem; Islands; North America
语种	英语
scopus关键词	biodiversity; ecosystem; island (geological); North America; Biodiversity; Ecosystem; Islands; North America
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118338
作者单位	Department of Ecology, Evolution, and Natural Resources, Rutgers University, New Brunswick, NJ 08901, United States; Department of Ecology and Evolution, University of Connecticut, Storrs, CT 06269, United States
推荐引用方式 GB/T 7714	Batt R.D.,Morley J.W.,Selden R.L.,et al. Gradual changes in range size accompany long-term trends in species richness[J],2017,20(9).
APA	Batt R.D.,Morley J.W.,Selden R.L.,Tingley M.W.,&Pinsky M.L..(2017).Gradual changes in range size accompany long-term trends in species richness.Ecology Letters,20(9).
MLA	Batt R.D.,et al."Gradual changes in range size accompany long-term trends in species richness".Ecology Letters 20.9(2017).