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Minimal effects of latitude on present-day speciation rates in New World birds.
Proc Biol Sci. 2015 Jun 22; 282(1809):20142889.PB

Abstract

The tropics contain far greater numbers of species than temperate regions, suggesting that rates of species formation might differ systematically between tropical and non-tropical areas. We tested this hypothesis by reconstructing the history of speciation in New World (NW) land birds using BAMM, a Bayesian framework for modelling complex evolutionary dynamics on phylogenetic trees. We estimated marginal distributions of present-day speciation rates for each of 2571 species of birds. The present-day rate of speciation varies approximately 30-fold across NW birds, but there is no difference in the rate distributions for tropical and temperate taxa. Using macroevolutionary cohort analysis, we demonstrate that clades with high tropical membership do not produce species more rapidly than temperate clades. For nearly any value of present-day speciation rate, there are far more species in the tropics than the temperate zone. Any effects of latitude on speciation rate are marginal in comparison to the dramatic variation in rates among clades.

Authors+Show Affiliations

Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI 48109, USA drabosky@umich.edu.Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI 48109, USA.Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI 48109, USA.

Pub Type(s)

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

Language

eng

PubMed ID

26019156

Citation

Rabosky, Daniel L., et al. "Minimal Effects of Latitude On Present-day Speciation Rates in New World Birds." Proceedings. Biological Sciences, vol. 282, no. 1809, 2015, p. 20142889.
Rabosky DL, Title PO, Huang H. Minimal effects of latitude on present-day speciation rates in New World birds. Proc Biol Sci. 2015;282(1809):20142889.
Rabosky, D. L., Title, P. O., & Huang, H. (2015). Minimal effects of latitude on present-day speciation rates in New World birds. Proceedings. Biological Sciences, 282(1809), 20142889. https://doi.org/10.1098/rspb.2014.2889
Rabosky DL, Title PO, Huang H. Minimal Effects of Latitude On Present-day Speciation Rates in New World Birds. Proc Biol Sci. 2015 Jun 22;282(1809):20142889. PubMed PMID: 26019156.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Minimal effects of latitude on present-day speciation rates in New World birds. AU - Rabosky,Daniel L, AU - Title,Pascal O, AU - Huang,Huateng, PY - 2015/5/29/entrez PY - 2015/5/29/pubmed PY - 2016/2/26/medline KW - diversification KW - diversity-dependence KW - latitudinal diversity gradient KW - macroevolution KW - speciation SP - 20142889 EP - 20142889 JF - Proceedings. Biological sciences JO - Proc. Biol. Sci. VL - 282 IS - 1809 N2 - The tropics contain far greater numbers of species than temperate regions, suggesting that rates of species formation might differ systematically between tropical and non-tropical areas. We tested this hypothesis by reconstructing the history of speciation in New World (NW) land birds using BAMM, a Bayesian framework for modelling complex evolutionary dynamics on phylogenetic trees. We estimated marginal distributions of present-day speciation rates for each of 2571 species of birds. The present-day rate of speciation varies approximately 30-fold across NW birds, but there is no difference in the rate distributions for tropical and temperate taxa. Using macroevolutionary cohort analysis, we demonstrate that clades with high tropical membership do not produce species more rapidly than temperate clades. For nearly any value of present-day speciation rate, there are far more species in the tropics than the temperate zone. Any effects of latitude on speciation rate are marginal in comparison to the dramatic variation in rates among clades. SN - 1471-2954 UR - https://www.unboundmedicine.com/medline/citation/26019156/Minimal_effects_of_latitude_on_present_day_speciation_rates_in_New_World_birds_ L2 - https://royalsocietypublishing.org/doi/full/10.1098/rspb.2014.2889?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -