World distribution, diversity and endemism of aquatic macrophytes

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datacite.alternateIdentifier.citationAquatic Botany, Vol.158, Article number 103127, 2019en_US
datacite.alternateIdentifier.doi10.1016/j.aquabot.2019.06.006en_US
datacite.creatorMurphy, K.
datacite.creatorEfremov, A.
datacite.creatorDavidson, T.
datacite.creatorMolina Navarro, E.
datacite.creatorFidanza, K.
datacite.creatorCrivelari Betiol, T.
datacite.creatorChambers, P.
datacite.creatorTapia Grimaldo, J.
datacite.creatorVarandas Martins, S.
datacite.creatorSpringuel, I.
datacite.creatorKennedy, M.
datacite.creatorMormul, R.
datacite.creatorDibble, E.
datacite.creatorHofstra, D.
datacite.creatorLukács, B.
datacite.creatorGebler, D.
datacite.creatorBaastrup Spohr, L.
datacite.creatorUrrutia Estrada, J.
datacite.date2019
datacite.subjectPlantas acuáticasen_US
datacite.subjectMacrófitas acuáticasen_US
datacite.subjectMacroecologíaen_US
datacite.subjectBiodiversidaden_US
datacite.subjectEndemismoen_US
datacite.titleWorld distribution, diversity and endemism of aquatic macrophytesen_US
dc.date.accessioned2020-07-29T00:51:43Z
dc.date.available2020-07-29T00:51:43Z
dc.description.abstractTo test the hitherto generally-accepted hypothesis that most aquatic macrophytes have broad world distributions, we investigated the global distribution, diversity and endemism patterns of 3457 macrophyte species that occur in permanent, temporary or ephemeral inland freshwater and brackish waterbodies worldwide. At a resolution of 10 × 10° latitude x longitude, most macrophyte species were found to have narrow global distributions: 78% have ranges (measured using an approach broadly following the IUCN-defined concept “extent of occurrence”) that individually occupy <10% of the world area present within the six global ecozones which primarily provide habitat for macrophytes. We found evidence of non-linear relationships between latitude and macrophyte α- and γ-diversity, with diversity highest in sub-tropical to low tropical latitudes, declining slightly towards the Equator, and also declining strongly towards higher latitudes. Landscape aridity and, to a lesser extent, altitude and land area present per gridcell also influence macrophyte diversity and species assemblage worldwide. The Neotropics and Orient have the richest ecozone species-pools for macrophytes, depending on γ-diversity metric used. The region around Brasilia/Goiás (Brazil: gridcell 10–20 °S; 40–50 °W) is the richest global hotspot for macrophyte α-diversity (total species α-diversity, ST: 625 species/gridcell, 350 of them Neotropical endemics). In contrast, the Sahara/Arabian Deserts, and some Arctic areas, have the lowest macrophyte α-diversity (ST <20 species/gridcell). At ecozone scale, macrophyte species endemism is pronounced, though with a>5-fold difference between the most species-rich (Neotropics) and species-poor (Palaearctic) ecozones. Our findings strongly support the assertion that small-ranged species constitute most of Earth's species diversityen_US
dc.formatPDFen_US
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/2279
dc.language.isoenen_US
dc.sourceAquatic Botanyen_US
oaire.resourceTypeArtículo de Revistaen_US
uct.catalogadorpopen_US
uct.comunidadRecursos Naturalesen_US
uct.indizacionISI - Science Citation Indexen_US
uct.indizacionSCOPUSen_US
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