Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2019404118 |
Planktivores as trophic drivers of global coral reef fish diversity patterns | |
Alexandre C. Siqueira; Renato A. Morais; David R. Bellwood; Peter F. Cowman | |
2021-03-02 | |
发表期刊 | Proceedings of the National Academy of Sciences |
出版年 | 2021 |
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. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/315672 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Alexandre C. Siqueira,Renato A. Morais,David R. Bellwood,et al. Planktivores as trophic drivers of global coral reef fish diversity patterns[J]. Proceedings of the National Academy of Sciences,2021. |
APA | Alexandre C. Siqueira,Renato A. Morais,David R. Bellwood,&Peter F. Cowman.(2021).Planktivores as trophic drivers of global coral reef fish diversity patterns.Proceedings of the National Academy of Sciences. |
MLA | Alexandre C. Siqueira,et al."Planktivores as trophic drivers of global coral reef fish diversity patterns".Proceedings of the National Academy of Sciences (2021). |
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