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Does extinction wield an axe or pruning shears? How interactions between phylogeny and ecology affect patterns of extinction

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dc.contributor.author Green, Walton A. en
dc.contributor.author Hunt, Gene en
dc.contributor.author Wing, Scott L. en
dc.contributor.author DiMichele, William A. en
dc.date.accessioned 2012-03-16T18:47:18Z
dc.date.available 2012-03-16T18:47:18Z
dc.date.issued 2011
dc.identifier.citation Green, Walton A., Hunt, Gene, Wing, Scott L., and DiMichele, William A. 2011. "<a href="https://repository.si.edu/handle/10088/18190">Does extinction wield an axe or pruning shears? How interactions between phylogeny and ecology affect patterns of extinction</a>." <em>Paleobiology</em>. 37 (1):72&ndash;91. <a href="https://doi.org/10.1666/09078.1">https://doi.org/10.1666/09078.1</a> en
dc.identifier.issn 0094-8373
dc.identifier.uri http://hdl.handle.net/10088/18190
dc.description.abstract Extinctions are caused by environmental and ecological change but are recognized and measured in the fossil record by the disappearance of clades or lineages. If the ecological preferences of lineages or taxa are weakly congruent with their phylogenetic relationships, even large ecological perturbations are unlikely to drive major clades extinct because the factors that eliminate some species are unlikely to affect close relatives with different ecological preferences. In contrast, if phylogenetic relatedness and ecological preferences are congruent, then ecological perturbations can more easily cause extinctions of large clades. In order to quantify this effect, we used a computer model to simulate the diversification and extinction of clades based on ecological criteria. By varying the parameters of the model, we explored (1) the relationship between the extinction probability for a clade of a given size (number of terminals) and the overall intensity of extinction (the proportion of the terminals that go extinct), and (2) the congruence between ecological traits of the terminals and their phylogenetic relationships. Data from two extinctions (planktonic foraminifera at the Eocene/Oligocene boundary and vascular land plants at the Middle/Late Pennsylvanian boundary) show phylogenetic clustering of both ecological traits and extinction probability and demonstrate the interaction of these factors. The disappearance of large clades is observed in the fossil record, but our model suggests that it is very improbable without both high overall extinction intensities and high congruence between ecology and phylogeny. en
dc.relation.ispartof Paleobiology en
dc.title Does extinction wield an axe or pruning shears? How interactions between phylogeny and ecology affect patterns of extinction en
dc.type Journal Article en
dc.identifier.srbnumber 97690
dc.identifier.doi 10.1666/09078.1
rft.jtitle Paleobiology
rft.volume 37
rft.issue 1
rft.spage 72
rft.epage 91
dc.description.SIUnit NH-Paleobiology en
dc.description.SIUnit NMNH en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 72
dc.citation.epage 91


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