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Climatic niche divergence drives patterns of diversification and richness among mammal families.
Sci Rep. 2018 06 08; 8(1):8781.SR

Abstract

A major goal of evolutionary biology is to understand why clades differ dramatically in species richness. A key to this challenge is to uncover the correlates of variation in diversification rate (speciation - extinction) among clades. Here, we explore the relationship between diversification rates and the climatic niches of species and clades among 92 families of terrestrial mammals. We use a time-calibrated molecular phylogeny of mammals and climatic data from 3335 species. We show that considerable variation in net diversification rates among mammal families is explained by niche divergence (59%) and rates of niche change (51%). Diversification rates in turn explain most variation in species richness among families (79%). Contrary to expectations, patterns of diversification are not explained by differences in geographic range areas of clades, nor by their climatic niche position (i.e. whether they are primarily tropical or temperate). Overall, these results suggest that speciation through climatic niche divergence may help drive large-scale patterns of diversification and richness. Our results help explain diversification patterns in a major clade of vertebrates, and suggest that similar underlying principles may explain the diversification of many terrestrial clades.

Authors+Show Affiliations

Departamento de Zoología, Facultad de Biología, Universidad de Santiago de Compostela, Rúa Lope Gómez de Marzoa, 15782, Santiago de Compostela, Spain. adrian.castro@usc.es.Departamento de Zoología, Facultad de Biología, Universidad de Santiago de Compostela, Rúa Lope Gómez de Marzoa, 15782, Santiago de Compostela, Spain.Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721-0088, USA.Departamento de Zoología, Facultad de Biología, Universidad de Santiago de Compostela, Rúa Lope Gómez de Marzoa, 15782, Santiago de Compostela, Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29884843

Citation

Castro-Insua, Adrián, et al. "Climatic Niche Divergence Drives Patterns of Diversification and Richness Among Mammal Families." Scientific Reports, vol. 8, no. 1, 2018, p. 8781.
Castro-Insua A, Gómez-Rodríguez C, Wiens JJ, et al. Climatic niche divergence drives patterns of diversification and richness among mammal families. Sci Rep. 2018;8(1):8781.
Castro-Insua, A., Gómez-Rodríguez, C., Wiens, J. J., & Baselga, A. (2018). Climatic niche divergence drives patterns of diversification and richness among mammal families. Scientific Reports, 8(1), 8781. https://doi.org/10.1038/s41598-018-27068-y
Castro-Insua A, et al. Climatic Niche Divergence Drives Patterns of Diversification and Richness Among Mammal Families. Sci Rep. 2018 06 8;8(1):8781. PubMed PMID: 29884843.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Climatic niche divergence drives patterns of diversification and richness among mammal families. AU - Castro-Insua,Adrián, AU - Gómez-Rodríguez,Carola, AU - Wiens,John J, AU - Baselga,Andrés, Y1 - 2018/06/08/ PY - 2017/11/16/received PY - 2018/05/24/accepted PY - 2018/6/10/entrez PY - 2018/6/10/pubmed PY - 2019/10/23/medline SP - 8781 EP - 8781 JF - Scientific reports JO - Sci Rep VL - 8 IS - 1 N2 - A major goal of evolutionary biology is to understand why clades differ dramatically in species richness. A key to this challenge is to uncover the correlates of variation in diversification rate (speciation - extinction) among clades. Here, we explore the relationship between diversification rates and the climatic niches of species and clades among 92 families of terrestrial mammals. We use a time-calibrated molecular phylogeny of mammals and climatic data from 3335 species. We show that considerable variation in net diversification rates among mammal families is explained by niche divergence (59%) and rates of niche change (51%). Diversification rates in turn explain most variation in species richness among families (79%). Contrary to expectations, patterns of diversification are not explained by differences in geographic range areas of clades, nor by their climatic niche position (i.e. whether they are primarily tropical or temperate). Overall, these results suggest that speciation through climatic niche divergence may help drive large-scale patterns of diversification and richness. Our results help explain diversification patterns in a major clade of vertebrates, and suggest that similar underlying principles may explain the diversification of many terrestrial clades. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/29884843/Climatic_niche_divergence_drives_patterns_of_diversification_and_richness_among_mammal_families_ L2 - https://doi.org/10.1038/s41598-018-27068-y DB - PRIME DP - Unbound Medicine ER -