| DOI: | 10.1111/ele.13476
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| 论文题名: | Angiosperm speciation cools down in the tropics |
| 作者: | Igea J.; Tanentzap A.J.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| 出版年: | 2020
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| 卷: | 23, 期:4 | | 语种: | 英语
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| 英文关键词: | angiosperms
; biodiversity
; biogeography
; latitudinal diversity gradient
; macroevolution
; speciation
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| Scopus关键词: | angiosperm
; biodiversity
; heterogeneity
; latitudinal gradient
; phytogeography
; speciation (biology)
; species richness
; tropical region
; Magnoliophyta
; angiosperm
; biodiversity
; ecosystem
; phylogeny
; species differentiation
; Biodiversity
; Ecosystem
; Genetic Speciation
; Magnoliopsida
; Phylogeny
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| 英文摘要: | Recent evidence has questioned whether the Latitudinal Diversity Gradient (LDG), whereby species richness increases towards the Equator, results in higher rates of speciation in the tropics. Allowing for time heterogeneity in speciation rate estimates for over 60,000 angiosperm species, we found that the LDG does not arise from variation in speciation rates because lineages do not speciate faster in the tropics. These results were consistently retrieved using two other methods to test the association between occupancy of tropical habitats and speciation rates. Our speciation rate estimates were robust to the effects of both undescribed species and missing taxa. Overall, our results show that speciation rates follow an opposite pattern to global variation in species richness. Greater ecological opportunity in the temperate zones, stemming from less saturated communities, higher species turnover or greater environmental change, may ultimately explain these results. © 2020 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/158601
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| Appears in Collections: | 气候变化与战略
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作者单位: | Department of Plant Sciences, University of Cambridge, Downing St, Cambridge, CB2 3EA, United Kingdom
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| Recommended Citation: | |
Igea J.,Tanentzap A.J.. Angiosperm speciation cools down in the tropics[J]. Ecology Letters,2020-01-01,23(4)
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