Non-null Effects of the Null Range in Biogeographic Models: Exploring Parameter Estimation in the DEC Model

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dc.contributor.author Massana, KA en
dc.contributor.author Beaulieu, JM en
dc.contributor.author Matzke, Nicholas en
dc.contributor.author O'Meara, BC en
dc.date.accessioned 2018-10-08T00:56:24Z en
dc.date.issued 2015-09-16 en
dc.identifier.uri http://hdl.handle.net/2292/39319 en
dc.description.abstract Historical biogeography seeks to understand the distribution of biodiversity in space and time. The dispersal-extinction-cladogenesis (DEC) model, a likelihood-based model of geographic range evolution, is widely used in assessing the biogeography of clades. Robust inference of dispersal and local extinction parameters is crucial for biogeographic inference, and yet a major caveat to its use is that the DEC model severely underestimates local extinction. We suggest that this is mainly due to the way in which the model is constructed to allow observed species to transition into being present in no areas (i.e., null range). By prohibiting transitions into the null range in the transition rate matrix, we were able to better infer local extinction and support this with simulations. This modified model, DEC*, has higher model fit and model adequacy than DEC, suggesting this modification should be considered for DEC and other models of geographic range evolution. en
dc.relation.ispartofseries bioRxiv en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Non-null Effects of the Null Range in Biogeographic Models: Exploring Parameter Estimation in the DEC Model en
dc.type Journal Article en
dc.identifier.doi 10.1101/026914 en
dc.rights.holder Copyright: The author en
pubs.author-url https://www.biorxiv.org/content/early/2015/09/16/026914 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 728098 en
pubs.org-id Science en
pubs.org-id Biological Sciences en
pubs.record-created-at-source-date 2018-03-02 en
pubs.online-publication-date 2015-09-16 en


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