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Speciation dynamics during the global radiation of extant bats.
Evolution. 2015 Jun; 69(6):1528-1545.E

Abstract

Species richness varies widely across extant clades, but the causes of this variation remain poorly understood. We investigate the role of diversification rate heterogeneity in shaping patterns of diversity across families of extant bats. To provide a robust framework for macroevolutionary inference, we assemble a time-calibrated, species-level phylogeny using a supermatrix of mitochondrial and nuclear sequence data. We analyze the phylogeny using a Bayesian method for modeling complex evolutionary dynamics. Surprisingly, we find that variation in family richness can largely be explained without invoking heterogeneous diversification dynamics. We document only a single well-supported shift in diversification dynamics across bats, occurring at the base of the subfamily Stenodermatinae. Bat diversity is phylogenetically imbalanced, but-contrary to previous hypotheses-this pattern is unexplained by any simple patterns of diversification rate heterogeneity. This discordance may indicate that diversification dynamics are more complex than can be captured using the statistical tools available for modeling data at this scale. We infer that bats as a whole are almost entirely united into one macroevolutionary cohort, with decelerating speciation through time. There is also a significant relationship between clade age and richness, suggesting that global bat diversity may still be expanding.

Authors+Show Affiliations

Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, Michigan, 48109.Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, Michigan, 48109.

Pub Type(s)

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

Language

eng

PubMed ID

25958922

Citation

Shi, Jeff J., and Daniel L. Rabosky. "Speciation Dynamics During the Global Radiation of Extant Bats." Evolution; International Journal of Organic Evolution, vol. 69, no. 6, 2015, pp. 1528-1545.
Shi JJ, Rabosky DL. Speciation dynamics during the global radiation of extant bats. Evolution. 2015;69(6):1528-1545.
Shi, J. J., & Rabosky, D. L. (2015). Speciation dynamics during the global radiation of extant bats. Evolution; International Journal of Organic Evolution, 69(6), 1528-1545. https://doi.org/10.1111/evo.12681
Shi JJ, Rabosky DL. Speciation Dynamics During the Global Radiation of Extant Bats. Evolution. 2015;69(6):1528-1545. PubMed PMID: 25958922.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Speciation dynamics during the global radiation of extant bats. AU - Shi,Jeff J, AU - Rabosky,Daniel L, Y1 - 2015/06/09/ PY - 2014/12/18/received PY - 2015/05/04/accepted PY - 2015/5/12/entrez PY - 2015/5/12/pubmed PY - 2016/5/31/medline KW - BAMM KW - Chiroptera KW - diversification rates KW - macroevolution KW - phylogenetic imbalance SP - 1528 EP - 1545 JF - Evolution; international journal of organic evolution JO - Evolution VL - 69 IS - 6 N2 - Species richness varies widely across extant clades, but the causes of this variation remain poorly understood. We investigate the role of diversification rate heterogeneity in shaping patterns of diversity across families of extant bats. To provide a robust framework for macroevolutionary inference, we assemble a time-calibrated, species-level phylogeny using a supermatrix of mitochondrial and nuclear sequence data. We analyze the phylogeny using a Bayesian method for modeling complex evolutionary dynamics. Surprisingly, we find that variation in family richness can largely be explained without invoking heterogeneous diversification dynamics. We document only a single well-supported shift in diversification dynamics across bats, occurring at the base of the subfamily Stenodermatinae. Bat diversity is phylogenetically imbalanced, but-contrary to previous hypotheses-this pattern is unexplained by any simple patterns of diversification rate heterogeneity. This discordance may indicate that diversification dynamics are more complex than can be captured using the statistical tools available for modeling data at this scale. We infer that bats as a whole are almost entirely united into one macroevolutionary cohort, with decelerating speciation through time. There is also a significant relationship between clade age and richness, suggesting that global bat diversity may still be expanding. SN - 1558-5646 UR - https://www.unboundmedicine.com/medline/citation/25958922/Speciation_dynamics_during_the_global_radiation_of_extant_bats_ L2 - https://doi.org/10.1111/evo.12681 DB - PRIME DP - Unbound Medicine ER -