Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/87383
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Type: Journal article
Title: Bivalve network reveals latitudinal selectivity gradient at the end-Cretaceous mass extinction
Author: Vilhena, D.
Harris, E.
Bergstrom, C.
Maliska, M.
Ward, P.
Sidor, C.
Stroemberg, C.
Wilson, G.
Citation: Scientific Reports, 2013; 3(1):1790-1-1790-5
Publisher: Nature Publishing Group
Issue Date: 2013
ISSN: 2045-2322
2045-2322
Statement of
Responsibility: 
Daril A. Vilhena, Elisha B. Harris, Carl T. Bergstrom, Max E. Maliska, Peter D. Ward, Christian A. Sidor, Caroline A. E. Strömberg and Gregory P. Wilson
Abstract: Biogeographic patterns of survival help constrain the causal factors responsible for mass extinction. To test whether biogeography influenced end-Cretaceous (K-Pg) extinction patterns, we used a network approach to delimit biogeographic units (BUs) above the species level in a global Maastrichtian database of 329 bivalve genera. Geographic range is thought to buffer taxa from extinction, but the number of BUs a taxon occurred in superseded geographic range as an extinction predictor. Geographically, we found a latitudinal selectivity gradient for geographic range in the K-Pg, such that higher latitude BUs had lower extinction than expected given the geographic ranges of the genera, implying that (i) high latitude BUs were more resistant to extinction, (ii) the intensity of the K-Pg kill mechanism declined with distance from the tropics, or (iii) both. Our results highlight the importance of macroecological structure in constraining causal mechanisms of extinction and estimating extinction risk of taxa.
Keywords: Macroecology; Asteroids, comets and Kuiper belt; Palaeontology; Ecological networks
Rights: © This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
DOI: 10.1038/srep01790
Appears in Collections:Aurora harvest 2
Earth and Environmental Sciences publications

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