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The effect of geographic range on extinction risk during background and mass extinction.
Proc Natl Acad Sci U S A. 2007 Jun 19; 104(25):10506-11.PN

Abstract

Wide geographic range is generally thought to buffer taxa against extinction, but the strength of this effect has not been investigated for the great majority of the fossil record. Although the majority of genus extinctions have occurred between major mass extinctions, little is known about extinction selectivity regimes during these "background" intervals. Consequently, the question of whether selectivity regimes differ between background and mass extinctions is largely unresolved. Using logistic regression, we evaluated the selectivity of genus survivorship with respect to geographic range by using a global database of fossil benthic marine invertebrates spanning the Cambrian through the Neogene periods, an interval of approximately 500 My. Our results show that wide geographic range has been significantly and positively associated with survivorship for the great majority of Phanerozoic time. Moreover, the significant association between geographic range and survivorship remains after controlling for differences in species richness and abundance among genera. However, mass extinctions and several second-order extinction events exhibit less geographic range selectivity than predicted by range alone. Widespread environmental disturbance can explain the reduced association between geographic range and extinction risk by simultaneously affecting genera with similar ecological and physiological characteristics on global scales. Although factors other than geographic range have certainly affected extinction risk during many intervals, geographic range is likely the most consistently significant predictor of extinction risk in the marine fossil record.

Authors+Show Affiliations

Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA. jlpayne@stanford.eduNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17563357

Citation

Payne, Jonathan L., and Seth Finnegan. "The Effect of Geographic Range On Extinction Risk During Background and Mass Extinction." Proceedings of the National Academy of Sciences of the United States of America, vol. 104, no. 25, 2007, pp. 10506-11.
Payne JL, Finnegan S. The effect of geographic range on extinction risk during background and mass extinction. Proc Natl Acad Sci U S A. 2007;104(25):10506-11.
Payne, J. L., & Finnegan, S. (2007). The effect of geographic range on extinction risk during background and mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 104(25), 10506-11.
Payne JL, Finnegan S. The Effect of Geographic Range On Extinction Risk During Background and Mass Extinction. Proc Natl Acad Sci U S A. 2007 Jun 19;104(25):10506-11. PubMed PMID: 17563357.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of geographic range on extinction risk during background and mass extinction. AU - Payne,Jonathan L, AU - Finnegan,Seth, Y1 - 2007/06/11/ PY - 2007/6/15/pubmed PY - 2007/8/19/medline PY - 2007/6/15/entrez SP - 10506 EP - 11 JF - Proceedings of the National Academy of Sciences of the United States of America JO - Proc Natl Acad Sci U S A VL - 104 IS - 25 N2 - Wide geographic range is generally thought to buffer taxa against extinction, but the strength of this effect has not been investigated for the great majority of the fossil record. Although the majority of genus extinctions have occurred between major mass extinctions, little is known about extinction selectivity regimes during these "background" intervals. Consequently, the question of whether selectivity regimes differ between background and mass extinctions is largely unresolved. Using logistic regression, we evaluated the selectivity of genus survivorship with respect to geographic range by using a global database of fossil benthic marine invertebrates spanning the Cambrian through the Neogene periods, an interval of approximately 500 My. Our results show that wide geographic range has been significantly and positively associated with survivorship for the great majority of Phanerozoic time. Moreover, the significant association between geographic range and survivorship remains after controlling for differences in species richness and abundance among genera. However, mass extinctions and several second-order extinction events exhibit less geographic range selectivity than predicted by range alone. Widespread environmental disturbance can explain the reduced association between geographic range and extinction risk by simultaneously affecting genera with similar ecological and physiological characteristics on global scales. Although factors other than geographic range have certainly affected extinction risk during many intervals, geographic range is likely the most consistently significant predictor of extinction risk in the marine fossil record. SN - 0027-8424 UR - https://www.unboundmedicine.com/medline/citation/17563357/The_effect_of_geographic_range_on_extinction_risk_during_background_and_mass_extinction_ L2 - http://www.pnas.org/cgi/pmidlookup?view=long&pmid=17563357 DB - PRIME DP - Unbound Medicine ER -