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Article: Spatial and temporal arrival patterns of Madagascar's vertebrate fauna explained by distance, ocean currents, and ancestor type

TitleSpatial and temporal arrival patterns of Madagascar's vertebrate fauna explained by distance, ocean currents, and ancestor type
Authors
KeywordsAnimal distributions
Biogeography
Endemism
Evolutionary history
Phylogenetics
Issue Date2012
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
Citation
Proceedings Of The National Academy Of Sciences Of The United States Of America, 2012, v. 109 n. 14, p. 5352-5357 How to Cite?
AbstractHow, when, and from where Madagascar's vertebrates arrived on the island is poorly known, and a comprehensive explanation for the distribution of its organisms has yet to emerge. We begin to break that impasse by analyzing vertebrate arrival patterns implied by currently existing taxa. For each of 81 clades, we compiled arrival date, source, and ancestor type (obligate freshwater, terrestrial, facultative swimmer, or volant). We analyzed changes in arrival rates, with and without adjusting for clade extinction. Probability of successful transoceanic dispersal is negatively correlated with distance traveled and influenced by ocean currents and ancestor type. Obligate rafters show a decrease in probability of successful transoceanic dispersal fromthe Paleocene onward, reaching the lowest levels after the mid- Miocene. This finding is consistent with a paleoceanographic model [Ali JR, HuberM(2010) Nature 463:653-656] that predicts Early Cenozoic surface currents periodically conducive to rafting or swimming fromAfrica, followed by a reconfiguration to present-day flow15-20 million years ago that significantly diminished the ability for transoceanic dispersal to Madagascar from the adjacent mainland.
Persistent Identifierhttp://hdl.handle.net/10722/148857
ISSN
2015 Impact Factor: 9.423
2015 SCImago Journal Rankings: 6.883
PubMed Central ID
ISI Accession Number ID
Funding AgencyGrant Number
National Science FoundationEAR-1123642
Funding Information:

We thank various Malagasy institutions, especially the Universite d'Antananarivo, for scientific collaboration, the Madagascar Institut pour la Conservation des Ecosystemes Tropicaux for logistical support, and Madagascar National Parks, the Ministry of Energy and Mines, and the Ministry of Environment and Forests for research permits; we also thank Peter Clift and Graeme Eagles for sharing information. This study was supported in part by National Science Foundation Grant EAR-1123642.

References

 

DC FieldValueLanguage
dc.contributor.authorSamonds, KEen_HK
dc.contributor.authorGodfrey, LRen_HK
dc.contributor.authorAli, JRen_HK
dc.contributor.authorGoodman, SMen_HK
dc.contributor.authorVences, Men_HK
dc.contributor.authorSutherland, MRen_HK
dc.contributor.authorIrwin, MTen_HK
dc.contributor.authorKrause, DWen_HK
dc.date.accessioned2012-06-18T03:54:45Z-
dc.date.available2012-06-18T03:54:45Z-
dc.date.issued2012en_HK
dc.identifier.citationProceedings Of The National Academy Of Sciences Of The United States Of America, 2012, v. 109 n. 14, p. 5352-5357en_HK
dc.identifier.issn0027-8424en_HK
dc.identifier.urihttp://hdl.handle.net/10722/148857-
dc.description.abstractHow, when, and from where Madagascar's vertebrates arrived on the island is poorly known, and a comprehensive explanation for the distribution of its organisms has yet to emerge. We begin to break that impasse by analyzing vertebrate arrival patterns implied by currently existing taxa. For each of 81 clades, we compiled arrival date, source, and ancestor type (obligate freshwater, terrestrial, facultative swimmer, or volant). We analyzed changes in arrival rates, with and without adjusting for clade extinction. Probability of successful transoceanic dispersal is negatively correlated with distance traveled and influenced by ocean currents and ancestor type. Obligate rafters show a decrease in probability of successful transoceanic dispersal fromthe Paleocene onward, reaching the lowest levels after the mid- Miocene. This finding is consistent with a paleoceanographic model [Ali JR, HuberM(2010) Nature 463:653-656] that predicts Early Cenozoic surface currents periodically conducive to rafting or swimming fromAfrica, followed by a reconfiguration to present-day flow15-20 million years ago that significantly diminished the ability for transoceanic dispersal to Madagascar from the adjacent mainland.en_HK
dc.languageeng-
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.orgen_HK
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen_HK
dc.subjectAnimal distributionsen_HK
dc.subjectBiogeographyen_HK
dc.subjectEndemismen_HK
dc.subjectEvolutionary historyen_HK
dc.subjectPhylogeneticsen_HK
dc.subject.meshAnimals-
dc.subject.meshBiodiversity-
dc.subject.meshMadagascar-
dc.subject.meshOceans and Seas-
dc.subject.meshVertebrates - classification-
dc.titleSpatial and temporal arrival patterns of Madagascar's vertebrate fauna explained by distance, ocean currents, and ancestor typeen_HK
dc.typeArticleen_HK
dc.identifier.emailAli, JR:jrali@hku.hken_HK
dc.identifier.authorityAli, JR=rp00659en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1073/pnas.1113993109en_HK
dc.identifier.pmid22431643-
dc.identifier.pmcidPMC3325680-
dc.identifier.scopuseid_2-s2.0-84859476850en_HK
dc.identifier.hkuros200017-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859476850&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume109en_HK
dc.identifier.issue14en_HK
dc.identifier.spage5352en_HK
dc.identifier.epage5357en_HK
dc.identifier.eissn1091-6490-
dc.identifier.isiWOS:000302294700052-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridSamonds, KE=6602870211en_HK
dc.identifier.scopusauthoridGodfrey, LR=7004970740en_HK
dc.identifier.scopusauthoridAli, JR=7102266465en_HK
dc.identifier.scopusauthoridGoodman, SM=55164034000en_HK
dc.identifier.scopusauthoridVences, M=7006129560en_HK
dc.identifier.scopusauthoridSutherland, MR=7101639844en_HK
dc.identifier.scopusauthoridIrwin, MT=7202411074en_HK
dc.identifier.scopusauthoridKrause, DW=7202949034en_HK

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