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dc.contributor.authorLeitão, Rafael Pereira-
dc.contributor.authorZuanon, Jansen-
dc.contributor.authorVill?ger, S?bastien-
dc.contributor.authorWilliams, Stephen E.-
dc.contributor.authorBaraloto, Christopher-
dc.contributor.authorFortunel, Claire-
dc.contributor.authorMendonça, Fernando Pereira-
dc.contributor.authorMouillot, David-
dc.date.accessioned2020-05-19T13:43:52Z-
dc.date.available2020-05-19T13:43:52Z-
dc.date.issued2016-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/15824-
dc.description.abstractThere is broad consensus that the diversity of functional traits within species assemblages drives several ecological processes. It is also widely recognized that rare species are the first to become extinct following human-induced disturbances. Surprisingly, however, the functional importance of rare species is still poorly understood, particularly in tropical species-rich assemblages where the majority of species are rare, and the rate of species extinction can be high. Here, we investigated the consequences of local and regional extinctions on the functional structure of species assemblages. We used three extensive datasets (stream fish from the Brazilian Amazon, rainforest trees from French Guiana, and birds from the Australian Wet Tropics) and built an integrative measure of species rarity versuscommonness, combining local abundance, geographical range, andhabitat breadth. Using different scenarios of species loss, we found a disproportionate impact of rare species extinction for the three groups, with significant reductions in levels of functional richness, specialization, and originality of assemblages, which may severely undermine the integrity of ecological processes. The whole breadth of functional abilities within species assemblages, which is disproportionately supported by rare species, is certainly critical in maintaining ecosystems particularly under the ongoing rapid environmental transitions. © 2016 The Author(s) Published by the Royal Society. All rights reserved.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 283, Número 1828pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectAnthropogenic Effecten
dc.subjectBiodiversityen
dc.subjectConservation Planningen
dc.subjectData Seten
dc.subjectExtinction Risken
dc.subjectRainforesten
dc.subjectRare Speciesen
dc.subjectRarityen
dc.subjectSpecies Richnessen
dc.subjectTropical Regionen
dc.subjectAvesen
dc.subjectAnimalsen
dc.subjectBiodiversityen
dc.subjectBirden
dc.subjectEnvironmental Protectionen
dc.subjectFishen
dc.subjectFrench Guianaen
dc.subjectPhysiologyen
dc.subjectPopulation Densityen
dc.subjectQueenslanden
dc.subjectRainforesten
dc.subjectSpecies Extinctionen
dc.subjectTreeen
dc.subjectAnimalen
dc.subjectBiodiversityen
dc.subjectBirdsen
dc.subjectConservation Of Natural Resourcesen
dc.subjectExtinction, Biologicalen
dc.subjectFishesen
dc.subjectFrench Guianaen
dc.subjectPopulation Densityen
dc.subjectQueenslanden
dc.subjectRainforesten
dc.subjectTreesen
dc.titleRare species contribute disproportionately to the functional structure of species assemblagesen
dc.typeArtigopt_BR
dc.identifier.doi10.1098/rspb.2016.0084-
dc.publisher.journalProceedings of the Royal Society B: Biological Sciencespt_BR
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