No ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae)

Hdl Handle:
http://hdl.handle.net/10142/617609
Title:
No ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae)
Authors:
Liedtke, H. Christoph; Müller, Hendrik; Rödel, Mark-Oliver; Menegon, Michele; Gonwouo, LeGrand Nono; Barej, Michael F.; Gvoždík, Václav; Schmitz, Andreas; Channing, Alan; Nagel, Peter; Loader, Simon P.
Abstract:
The niche-filling process predicted by the “ecological opportunity” (EO) model is an often-invoked mechanism for generating exceptional diversity in island colonizers. Whether the same process governs lineage accumulation and trait disparity during continental colonization events is less clear. Here, we test this prediction by investigating the rate dynamics and trait evolution of one of Africa's most widespread amphibian colonizers, the true toads (Bufonidae). By reconstructing the most complete molecular phylogeny of African Bufonidae to date, we find that the diversification of lineages in Africa best conforms to a constant rate model throughout time and across subclades, with little support for EO. Evolutionary rates of life-history traits have similarly been constant over time. However, an analysis of generalists and specialists showed a shift toward higher speciation rates associated with habitat specialization. The overall lack of EO signal can be interpreted in a number of ways and we propose several explanations. Firstly, methodological issues might preclude the detection of EO. Secondly, colonizers might not experience true EO conditions and due to the size, ecological heterogeneity and age of landmasses, the diversification processes might be more complex. Thirdly, lower speciation rates of habitat generalists may have affected overall proliferation of lineages.
Affiliation:
Department of Environmental Science (Biogeography), University of Basel, Basel, Switzerland; Ecology, Evolution and Developmental Group, Department of Wetland Ecology, Estación Biológica de Doñana (CSIC), Sevilla, Spain; Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich-Schiller-Universität Jena, Jena, Germany; Museum für Naturkunde Berlin, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany: Tropical Biodiversity Section, MUSE-Museo delle Scienze, Trento, Italy; Cameroon Herpetology-Conservation Biology Foundation, Yaoundé, Cameroon; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic; Natural History Museum of Geneva, Department of Herpetology and Ichthyology, 1211 Geneva; Switzerland; Biodiversity and Conservation Biology Department, University of the Western Cape, Bellville, South Africa; Department of Life Sciences, University of Roehampton, United Kingdom
Citation:
No ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae) 2016 Evolution
Publisher:
Wiley
Journal:
Evolution
Issue Date:
Jul-2016
URI:
http://hdl.handle.net/10142/617609
DOI:
10.1111/evo.12985
Additional Links:
http://doi.wiley.com/10.1111/evo.12985
Type:
Article
Language:
en
Description:
"This is the peer reviewed version of the following article: Liedtke, H. C., Müller, H., Rödel, M.-O., Menegon, M., Gonwouo, L. N., Barej, M. F., Gvoždík, V., Schmitz, A., Channing, A., Nagel, P. and Loader, S. P. (2016), No ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae). Evolution. doi: 10.1111/evo.12985, which has been published in final form at http://dx.doi.org/10.1111/evo.12985. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." Accepted Date: 03/06/2016; Version: Author Manuscript / Post-Print; Exceptions: None
ISSN:
00143820
Sponsors:
Funded by: Swiss National Science Foundation. Grant Number: 31003A-133067 Czech Science Foundation. Grant Number: 15–13415Y
Appears in Collections:
Department of Life Sciences Collection

Full metadata record

DC FieldValue Language
dc.contributor.authorLiedtke, H. Christophen
dc.contributor.authorMüller, Hendriken
dc.contributor.authorRödel, Mark-Oliveren
dc.contributor.authorMenegon, Micheleen
dc.contributor.authorGonwouo, LeGrand Nonoen
dc.contributor.authorBarej, Michael F.en
dc.contributor.authorGvoždík, Václaven
dc.contributor.authorSchmitz, Andreasen
dc.contributor.authorChanning, Alanen
dc.contributor.authorNagel, Peteren
dc.contributor.authorLoader, Simon P.en
dc.date.accessioned2016-07-27T10:24:29Z-
dc.date.available2016-07-27T10:24:29Z-
dc.date.issued2016-07-
dc.identifier.citationNo ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae) 2016 Evolutionen
dc.identifier.issn00143820-
dc.identifier.doi10.1111/evo.12985-
dc.identifier.urihttp://hdl.handle.net/10142/617609-
dc.description"This is the peer reviewed version of the following article: Liedtke, H. C., Müller, H., Rödel, M.-O., Menegon, M., Gonwouo, L. N., Barej, M. F., Gvoždík, V., Schmitz, A., Channing, A., Nagel, P. and Loader, S. P. (2016), No ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae). Evolution. doi: 10.1111/evo.12985, which has been published in final form at http://dx.doi.org/10.1111/evo.12985. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." Accepted Date: 03/06/2016; Version: Author Manuscript / Post-Print; Exceptions: Noneen
dc.description.abstractThe niche-filling process predicted by the “ecological opportunity” (EO) model is an often-invoked mechanism for generating exceptional diversity in island colonizers. Whether the same process governs lineage accumulation and trait disparity during continental colonization events is less clear. Here, we test this prediction by investigating the rate dynamics and trait evolution of one of Africa's most widespread amphibian colonizers, the true toads (Bufonidae). By reconstructing the most complete molecular phylogeny of African Bufonidae to date, we find that the diversification of lineages in Africa best conforms to a constant rate model throughout time and across subclades, with little support for EO. Evolutionary rates of life-history traits have similarly been constant over time. However, an analysis of generalists and specialists showed a shift toward higher speciation rates associated with habitat specialization. The overall lack of EO signal can be interpreted in a number of ways and we propose several explanations. Firstly, methodological issues might preclude the detection of EO. Secondly, colonizers might not experience true EO conditions and due to the size, ecological heterogeneity and age of landmasses, the diversification processes might be more complex. Thirdly, lower speciation rates of habitat generalists may have affected overall proliferation of lineages.en
dc.description.provenanceSubmitted by Camilla Griffiths (camilla.griffiths@roehampton.ac.uk) on 2016-07-27T10:21:33Z No. of bitstreams: 1 evolution_15-0911 R1.pdf: 5137594 bytes, checksum: 0b2a4efcddf46876d49426c3494411d2 (MD5)en
dc.description.provenanceApproved for entry into archive by Camilla Griffiths (camilla.griffiths@roehampton.ac.uk) on 2016-07-27T10:24:28Z (GMT) No. of bitstreams: 1 evolution_15-0911 R1.pdf: 5137594 bytes, checksum: 0b2a4efcddf46876d49426c3494411d2 (MD5)en
dc.description.provenanceMade available in DSpace on 2016-07-27T10:24:29Z (GMT). No. of bitstreams: 1 evolution_15-0911 R1.pdf: 5137594 bytes, checksum: 0b2a4efcddf46876d49426c3494411d2 (MD5) Previous issue date: 2016-07en
dc.description.sponsorshipFunded by: Swiss National Science Foundation. Grant Number: 31003A-133067 Czech Science Foundation. Grant Number: 15–13415Yen
dc.language.isoenen
dc.publisherWileyen
dc.relation.urlhttp://doi.wiley.com/10.1111/evo.12985en
dc.rightsArchived with thanks to Evolutionen
dc.titleNo ecological opportunity signal on a continental scale? Diversification and life-history evolution of African true toads (Anura: Bufonidae)en
dc.typeArticleen
dc.contributor.departmentDepartment of Environmental Science (Biogeography), University of Basel, Basel, Switzerland; Ecology, Evolution and Developmental Group, Department of Wetland Ecology, Estación Biológica de Doñana (CSIC), Sevilla, Spain; Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich-Schiller-Universität Jena, Jena, Germany; Museum für Naturkunde Berlin, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany: Tropical Biodiversity Section, MUSE-Museo delle Scienze, Trento, Italy; Cameroon Herpetology-Conservation Biology Foundation, Yaoundé, Cameroon; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic; Natural History Museum of Geneva, Department of Herpetology and Ichthyology, 1211 Geneva; Switzerland; Biodiversity and Conservation Biology Department, University of the Western Cape, Bellville, South Africa; Department of Life Sciences, University of Roehampton, United Kingdomen
dc.identifier.journalEvolutionen
dc.contributor.institutionDepartment of Environmental Science (Biogeography); University of Basel; 4056 Basel Switzerland-
dc.contributor.institutionInstitut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum; Friedrich-Schiller-Universität Jena; 07743 Jena Germany-
dc.contributor.institutionMuseum für Naturkunde Berlin; Leibniz Institute for Evolution and Biodiversity Science; 10115 Berlin Germany-
dc.contributor.institutionTropical Biodiversity Section; MUSE-Museo delle Scienze; Trento 38123 Italy-
dc.contributor.institutionCameroon Herpetology-Conservation Biology Foundation; P.O. Box 8218 Yaoundé Cameroon-
dc.contributor.institutionMuseum für Naturkunde Berlin; Leibniz Institute for Evolution and Biodiversity Science; 10115 Berlin Germany-
dc.contributor.institutionInstitute of Vertebrate Biology; Czech Academy of Sciences; Brno Czech Republic-
dc.contributor.institutionNatural History Museum of Geneva; Department of Herpetology and Ichthyology; C.P. 6434 1211 Geneva 6 Switzerland-
dc.contributor.institutionBiodiversity and Conservation Biology Department; University of the Western Cape; Bellville 7535 South Africa-
dc.contributor.institutionDepartment of Environmental Science (Biogeography); University of Basel; 4056 Basel Switzerland-
dc.contributor.institutionDepartment of Environmental Science (Biogeography); University of Basel; 4056 Basel Switzerland-
All Items in RURR are protected by copyright, with all rights reserved, unless otherwise indicated.