The evolution of a tropical biodiversity hotspot
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works..
The tropics are the source of most biodiversity yet inadequate sampling obscures answers to fundamental questions about how this diversity evolves. We leveraged samples assembled over decades of fieldwork to study diversification of the largest tropical bird radiation, the suboscine passerines. Our phylogeny, estimated using data from 2389 genomic regions in 1940 individuals of 1283 species, reveals that peak suboscine species diversity in the Neotropics is not associated with high recent speciation rates but rather with the gradual accumulation of species over time. Paradoxically, the highest speciation rates are in lineages from regions with low species diversity, which are generally cold, dry, unstable environments. Our results reveal a model in which species are forming faster in environmental extremes but have accumulated in moderate environments to form tropical biodiversity hotspots.
| Errataetall: |
CommentIn: Science. 2020 Dec 11;370(6522):1268-1269. - PMID 33303602 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:370 |
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| Enthalten in: |
Science (New York, N.Y.) - 370(2020), 6522 vom: 11. Dez., Seite 1343-1348 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Harvey, Michael G [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Completed 02.02.2021 Date Revised 10.06.2021 published: Print CommentIn: Science. 2020 Dec 11;370(6522):1268-1269. - PMID 33303602 Citation Status MEDLINE |
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| doi: |
10.1126/science.aaz6970 |
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| funding: |
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| 520 | |a Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. | ||
| 520 | |a The tropics are the source of most biodiversity yet inadequate sampling obscures answers to fundamental questions about how this diversity evolves. We leveraged samples assembled over decades of fieldwork to study diversification of the largest tropical bird radiation, the suboscine passerines. Our phylogeny, estimated using data from 2389 genomic regions in 1940 individuals of 1283 species, reveals that peak suboscine species diversity in the Neotropics is not associated with high recent speciation rates but rather with the gradual accumulation of species over time. Paradoxically, the highest speciation rates are in lineages from regions with low species diversity, which are generally cold, dry, unstable environments. Our results reveal a model in which species are forming faster in environmental extremes but have accumulated in moderate environments to form tropical biodiversity hotspots | ||
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| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
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| 700 | 1 | |a Claramunt, Santiago |e verfasserin |4 aut | |
| 700 | 1 | |a Cuervo, Andrés M |e verfasserin |4 aut | |
| 700 | 1 | |a Derryberry, Graham E |e verfasserin |4 aut | |
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