Empirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flow

Handle URI:
http://hdl.handle.net/10754/623082
Title:
Empirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flow
Authors:
Bonnet-Lebrun, Anne-Sophie; Manica, Andrea; Eriksson, Anders ( 0000-0003-3436-3726 ) ; Rodrigues, Ana S.L.
Abstract:
Community characteristics reflect past ecological and evolutionary dynamics. Here, we investigate whether it is possible to obtain realistically shaped modelled communities - i.e., with phylogenetic trees and species abundance distributions shaped similarly to typical empirical bird and mammal communities - from neutral community models. To test the effect of gene flow, we contrasted two spatially explicit individual-based neutral models: one with protracted speciation, delayed by gene flow, and one with point mutation speciation, unaffected by gene flow. The former produced more realistic communities (shape of phylogenetic tree and species-abundance distribution), consistent with gene flow being a key process in macro-evolutionary dynamics. Earlier models struggled to capture the empirically observed branching tempo in phylogenetic trees, as measured by the gamma statistic. We show that the low gamma values typical of empirical trees can be obtained in models with protracted speciation, in pre-equilibrium communities developing from an initially abundant and widespread species. This was even more so in communities sampled incompletely, particularly if the unknown species are the youngest. Overall, our results demonstrate that the characteristics of empirical communities that we have studied can, to a large extent, be explained through a purely neutral model under pre-equilibrium conditions. This article is protected by copyright. All rights reserved.
KAUST Department:
Integrative Systems Biology Lab
Citation:
Bonnet-Lebrun A-S, Manica A, Eriksson A, Rodrigues ASL (2017) Empirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flow. Evolution. Available: http://dx.doi.org/10.1111/evo.13228.
Publisher:
Wiley-Blackwell
Journal:
Evolution
Issue Date:
17-Mar-2017
DOI:
10.1111/evo.13228
Type:
Article
ISSN:
0014-3820
Sponsors:
We are grateful to F. Laroche and F. Jabot for very constructive discussions and to O. Gimenez for technical support. We also thank J. Rosindell, A. Hurlbert and two other (anonymous) referees for constructive comments that much contributed to improving the manuscript.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1111/evo.13228/abstract
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorBonnet-Lebrun, Anne-Sophieen
dc.contributor.authorManica, Andreaen
dc.contributor.authorEriksson, Andersen
dc.contributor.authorRodrigues, Ana S.L.en
dc.date.accessioned2017-04-10T07:49:50Z-
dc.date.available2017-04-10T07:49:50Z-
dc.date.issued2017-03-17en
dc.identifier.citationBonnet-Lebrun A-S, Manica A, Eriksson A, Rodrigues ASL (2017) Empirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flow. Evolution. Available: http://dx.doi.org/10.1111/evo.13228.en
dc.identifier.issn0014-3820en
dc.identifier.doi10.1111/evo.13228en
dc.identifier.urihttp://hdl.handle.net/10754/623082-
dc.description.abstractCommunity characteristics reflect past ecological and evolutionary dynamics. Here, we investigate whether it is possible to obtain realistically shaped modelled communities - i.e., with phylogenetic trees and species abundance distributions shaped similarly to typical empirical bird and mammal communities - from neutral community models. To test the effect of gene flow, we contrasted two spatially explicit individual-based neutral models: one with protracted speciation, delayed by gene flow, and one with point mutation speciation, unaffected by gene flow. The former produced more realistic communities (shape of phylogenetic tree and species-abundance distribution), consistent with gene flow being a key process in macro-evolutionary dynamics. Earlier models struggled to capture the empirically observed branching tempo in phylogenetic trees, as measured by the gamma statistic. We show that the low gamma values typical of empirical trees can be obtained in models with protracted speciation, in pre-equilibrium communities developing from an initially abundant and widespread species. This was even more so in communities sampled incompletely, particularly if the unknown species are the youngest. Overall, our results demonstrate that the characteristics of empirical communities that we have studied can, to a large extent, be explained through a purely neutral model under pre-equilibrium conditions. This article is protected by copyright. All rights reserved.en
dc.description.sponsorshipWe are grateful to F. Laroche and F. Jabot for very constructive discussions and to O. Gimenez for technical support. We also thank J. Rosindell, A. Hurlbert and two other (anonymous) referees for constructive comments that much contributed to improving the manuscript.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1111/evo.13228/abstracten
dc.rightsThis is the peer reviewed version of the following article: Empirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flow, which has been published in final form at http://doi.org/10.1111/evo.13228. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.subjectPoint mutationen
dc.subjectGene flowen
dc.subjectMacroevolutionen
dc.subjectProtracted Speciationen
dc.subjectNeutral Community Modelsen
dc.subjectPhylogenetic Tree Shapeen
dc.subjectPre-equilibriumen
dc.titleEmpirical phylogenies and species abundance distributions are consistent with pre-equilibrium dynamics of neutral community models with gene flowen
dc.typeArticleen
dc.contributor.departmentIntegrative Systems Biology Laben
dc.identifier.journalEvolutionen
dc.eprint.versionPost-printen
dc.contributor.institutionCentre d'Ecologie Fonctionnelle et Evolutive CEFE UMR 5175; CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE; 1919 route de Mende, 34293 Montpellier cedex 5 Franceen
dc.contributor.institutionDepartment of Zoology; University of Cambridge; Downing Street Cambridge CB2 3EJ United Kingdomen
dc.contributor.institutionÉcole Normale Supérieure; 45 rue d'Ulm F-75230 Paris Franceen
kaust.authorEriksson, Andersen
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