气候变化领域集成服务门户(CCPortal): Emergent dual scaling of riverine biodiversity

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DOI	10.1073/pnas.2105574118
	Emergent dual scaling of riverine biodiversity
	Terui A.; Kim S.; Dolph C.L.; Kadoya T.; Miyazaki Y.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:47
英文摘要	A prevailing paradigm suggests that species richness increases with area in a decelerating way. This ubiquitous power law scaling, the species-area relationship, has formed the foundation of many conservation strategies. In spatially complex ecosystems, however, the area may not be the sole dimension to scale biodiversity patterns because the scale-invariant complexity of fractal ecosystem structure may drive ecological dynamics in space. Here, we use theory and analysis of extensive fish community data from two distinct geographic regions to show that riverine biodiversity follows a robust scaling law along the two orthogonal dimensions of ecosystem size and complexity (i.e., the dual scaling law). In river networks, the recurrent merging of various tributaries forms fractal branching systems, where the prevalence of branching (ecosystem complexity) represents a macroscale control of the ecosystem's habitat heterogeneity. In the meantime, ecosystem size dictates metacommunity size and total habitat diversity, two factors regulating biodiversity in nature. Our theory predicted that, regardless of simulated species' traits, larger and more branched "complex" networks support greater species richness due to increased space and environmental heterogeneity. The relationships were linear on logarithmic axes, indicating power law scaling by ecosystem size and complexity. In support of this theoretical prediction, the power laws have consistently emerged in riverine fish communities across the study regions (Hokkaido Island in Japan and the midwestern United States) despite hosting different fauna with distinct evolutionary histories. The emergence of dual scaling law may be a pervasive property of branching networks with important implications for biodiversity conservation. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Freshwater; Metacommunity; Network theory; Scaling law; Species diversity
语种	英语
scopus关键词	Article; biodiversity; conservation biology; controlled study; dual scaling law; ecosystem; fish; fractal analysis; genetic heterogeneity; geographic distribution; habitat structure; human; Japan; orthogonal rotation; prediction; prevalence; river; species richness; theory; animal; biological model; ecosystem; geographic mapping; physiology; species difference; United States; Animals; Biodiversity; Ecosystem; Fishes; Fractals; Geographic Mapping; Japan; Midwestern United States; Models, Biological; Rivers; Species Specificity
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250973
作者单位	Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, United States; Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, United States; Biodiversity Division, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan; Department of Child Education and Welfare, Shiraume Gakuen College, Tokyo, 187-8570, Japan
推荐引用方式 GB/T 7714	Terui A.,Kim S.,Dolph C.L.,et al. Emergent dual scaling of riverine biodiversity[J],2021,118(47).
APA	Terui A.,Kim S.,Dolph C.L.,Kadoya T.,&Miyazaki Y..(2021).Emergent dual scaling of riverine biodiversity.Proceedings of the National Academy of Sciences of the United States of America,118(47).
MLA	Terui A.,et al."Emergent dual scaling of riverine biodiversity".Proceedings of the National Academy of Sciences of the United States of America 118.47(2021).