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Extinction as a driver of avian latitudinal diversity gradients.
Evolution. 2016 Apr; 70(4):860-72.E

Abstract

The role of historical factors in driving latitudinal diversity gradients is poorly understood. Here, we used an updated global phylogeny of terrestrial birds to test the role of three key historical factors-speciation, extinction, and dispersal rates-in generating latitudinal diversity gradients for eight major clades. We fit a model that allows speciation, extinction, and dispersal rates to differ, both with latitude and between the New and Old World. Our results consistently support extinction (all clades had lowest extinction where species richness was highest) as a key driver of species richness gradients across each of eight major clades. In contrast, speciation and dispersal rates showed no consistent latitudinal patterns across replicate bird clades, and thus are unlikely to represent general underlying drivers of latitudinal diversity gradients.

Authors+Show Affiliations

Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada. p.pulidosantacruz@mail.utoronto.ca.Current Address: Department of Ecology and Evolutionary Biology, University of Toronto, 1265 Military Trail, Scarborough, Ontario, M1C 1A4, Canada. Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada.

Pub Type(s)

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

Language

eng

PubMed ID

26940812

Citation

Pulido-Santacruz, Paola, and Jason T. Weir. "Extinction as a Driver of Avian Latitudinal Diversity Gradients." Evolution; International Journal of Organic Evolution, vol. 70, no. 4, 2016, pp. 860-72.
Pulido-Santacruz P, Weir JT. Extinction as a driver of avian latitudinal diversity gradients. Evolution. 2016;70(4):860-72.
Pulido-Santacruz, P., & Weir, J. T. (2016). Extinction as a driver of avian latitudinal diversity gradients. Evolution; International Journal of Organic Evolution, 70(4), 860-72. https://doi.org/10.1111/evo.12899
Pulido-Santacruz P, Weir JT. Extinction as a Driver of Avian Latitudinal Diversity Gradients. Evolution. 2016;70(4):860-72. PubMed PMID: 26940812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Extinction as a driver of avian latitudinal diversity gradients. AU - Pulido-Santacruz,Paola, AU - Weir,Jason T, Y1 - 2016/03/31/ PY - 2014/12/08/received PY - 2016/02/18/revised PY - 2016/02/22/accepted PY - 2016/3/5/entrez PY - 2016/3/5/pubmed PY - 2016/12/15/medline KW - Birds KW - extinction rate KW - historical factors KW - latitudinal diversity gradients KW - speciation rate KW - species richness SP - 860 EP - 72 JF - Evolution; international journal of organic evolution JO - Evolution VL - 70 IS - 4 N2 - The role of historical factors in driving latitudinal diversity gradients is poorly understood. Here, we used an updated global phylogeny of terrestrial birds to test the role of three key historical factors-speciation, extinction, and dispersal rates-in generating latitudinal diversity gradients for eight major clades. We fit a model that allows speciation, extinction, and dispersal rates to differ, both with latitude and between the New and Old World. Our results consistently support extinction (all clades had lowest extinction where species richness was highest) as a key driver of species richness gradients across each of eight major clades. In contrast, speciation and dispersal rates showed no consistent latitudinal patterns across replicate bird clades, and thus are unlikely to represent general underlying drivers of latitudinal diversity gradients. SN - 1558-5646 UR - https://www.unboundmedicine.com/medline/citation/26940812/Extinction_as_a_driver_of_avian_latitudinal_diversity_gradients_ DB - PRIME DP - Unbound Medicine ER -