Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/73466
DC FieldValueLanguage
dc.contributor.authorLessios, H. A.en_US
dc.contributor.authorGarrido, M. J.en_US
dc.contributor.authorKessing, B. D.en_US
dc.date.accessioned2020-06-24T11:55:51Z-
dc.date.available2020-06-24T11:55:51Z-
dc.date.issued2001en_US
dc.identifier.issn0962-8452en_US
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/73466-
dc.description.abstractThe sea urchin Diadema antillarum was the most important herbivore on Caribbean reefs until 1983, when mass mortality reduced its populations by more than 97%. Knowledge of its past demography is essential to reconstruct reef ecology as it was before human impact, which has been implicated as having caused high pre-mortality Diadema abundance. To determine the history of its population size, we sequenced the ATPase 6 and 8 region of mitochondrial DNA from populations in the Caribbean and in the eastern Atlantic (which was not affected by the mass mortality), as well as from the eastern Pacific D. mexicanum. The Caribbean population harbours an order of magnitude more molecular diversity than those of the eastern Pacific or the eastern Atlantic and, despite the recent mass mortality, its DNA sequences bear the genetic signature of a previous population expansion. By estimating mutation rates front divergence between D. antillarum and D. mexicanum, that were separated at a known time by the Isthmus of Panama, and by using estimates of effective population size derived from mismatch distributions and a maximum likelihood coalescence algorithm, we date the expansion as having occurred no more recently than 100 000 years before the present. Thus, Diadema was abundant in the Caribbean long before humans could have affected ecological processes; the genetic data contain no evidence of a recent, anthropogenically caused, population increase.en_US
dc.languageengen_US
dc.relation.ispartofProceedings of the Royal Society B: Biological Sciencesen_US
dc.sourceProceedings Of The Royal Society B-Biological Sciences [ISSN 0962-8452], v. 268 (1483), p. 2347-2353, (Noviembre 2001)en_US
dc.subject240119 Zoología marinaen_US
dc.subject310510 Dinámica de las poblacionesen_US
dc.subject.otherHuman Mitochondrial-Dnaen_US
dc.subject.otherMass Mortalityen_US
dc.subject.otherPopulation-Growthen_US
dc.subject.otherCoral-Reefen_US
dc.subject.otherCommunity Structureen_US
dc.subject.otherMicrosatellite Mutationsen_US
dc.subject.otherSegregating Sitesen_US
dc.subject.otherAlgal Communitiesen_US
dc.subject.otherGenetic-Evidenceen_US
dc.subject.otherFood Limitationen_US
dc.subject.otherMitochondrial Dnaen_US
dc.subject.otherMismatch Distributionen_US
dc.subject.otherCoalescenceen_US
dc.subject.otherHuman Impacten_US
dc.titleDemographic history of Diadema antillarum, a keystone herbivore on Caribbean reefsen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.isi000172482500009-
dc.description.lastpage2353en_US
dc.identifier.issue1483-
dc.description.firstpage2347en_US
dc.relation.volume268en_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid412364-
dc.contributor.daisngid31446699-
dc.contributor.daisngid1233884-
dc.description.numberofpages7en_US
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Lessios, HA-
dc.contributor.wosstandardWOS:Garrido, MJ-
dc.contributor.wosstandardWOS:Kessing, BD-
dc.date.coverdateNoviembre 2001en_US
dc.identifier.ulpgces
dc.description.jcr3,192
dc.description.jcrqQ1
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
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