气候变化领域集成服务门户(CCPortal): Planktivores as trophic drivers of global coral reef fish diversity patterns

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DOI	10.1073/pnas.2019404118
	Planktivores as trophic drivers of global coral reef fish diversity patterns
	Siqueira A.C.; Morais R.A.; Bellwood D.R.; Cowman P.F.
发表日期	2021
ISSN	00278424
卷号	118 期号:9
英文摘要	One of the most prominent features of life on Earth is the uneven number of species across large spatial scales. Despite being inherently linked to energetic constraints, these gradients in species richness distribution have rarely been examined from a trophic perspective. Here we dissect the global diversity of over 3,600 coral reef fishes to reveal patterns across major trophic groups. By analyzing multiple nested spatial scales, we show that planktivores contribute disproportionally to the formation of the Indo-Australian Archipelago (IAA) marine biodiversity hotspot. Besides being “hotter” at the hotspot, planktivorous fishes display the steepest decline in species numbers with distance from the IAA when compared to other trophic groups. Surprisingly, we did not detect differences in diversification, transition, and dispersal rates in extant species phylogenies that would explain this remarkable gradient in planktivorous fish richness. Thus, we identify two potential complementary drivers for this pattern. First, exceptional levels of partitioning among planktivorous coral reef fishes were driven by temporally stable oceanographic conditions and abundant planktonic resources in the IAA. Second, extinctions of planktivores outside the IAA have been particularly pronounced during Quaternary climate fluctuations. Overall, our results highlight trophic ecology as an important component of global species richness gradients. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Extinction; Indo-Australian Archipelago; Macroecology; Species richness; Trophic groups
语种	英语
scopus关键词	article; biodiversity; climate; coral reef; ecology; extant species; human; nonhuman; phylogeny; planktivore; species richness
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/180458
作者单位	Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia; Research Hub for Coral Reef Ecosystem Functions, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia; Biodiversity and Geosciences Program, Museum of Tropical Queensland, Queensland Museum Network, Townsville, QLD 4810, Australia
推荐引用方式 GB/T 7714	Siqueira A.C.,Morais R.A.,Bellwood D.R.,et al. Planktivores as trophic drivers of global coral reef fish diversity patterns[J],2021,118(9).
APA	Siqueira A.C.,Morais R.A.,Bellwood D.R.,&Cowman P.F..(2021).Planktivores as trophic drivers of global coral reef fish diversity patterns.Proceedings of the National Academy of Sciences of the United States of America,118(9).
MLA	Siqueira A.C.,et al."Planktivores as trophic drivers of global coral reef fish diversity patterns".Proceedings of the National Academy of Sciences of the United States of America 118.9(2021).