World distribution, diversity and endemism of aquatic macrophytes

Simple item page
dc.contributor.authorMurphy, K.
dc.contributor.authorEfremov, A.
dc.contributor.authorDavidson, T.
dc.contributor.authorMolina Navarro, E.
dc.contributor.authorFidanza, K.
dc.contributor.authorCrivelari Betiol, T.
dc.contributor.authorChambers, P.
dc.contributor.authorTapia Grimaldo, J.
dc.contributor.authorVarandas Martins, S.
dc.contributor.authorSpringuel, I.
dc.contributor.authorKennedy, M.
dc.contributor.authorMormul, R.
dc.contributor.authorDibble, E.
dc.contributor.authorHofstra, D.
dc.contributor.authorLukács, B.
dc.contributor.authorGebler, D.
dc.contributor.authorBaastrup Spohr, L.
dc.contributor.authorUrrutia Estrada, J.
dc.date2019
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.citationAquatic Botany, Vol.158, Article number 103127, 2019en_US
dc.identifier.doi10.1016/j.aquabot.2019.06.006en_US
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/2279
dc.language.isoenen_US
dc.sourceAquatic Botanyen_US
dc.subjectPlantas acuáticasen_US
dc.subjectMacrófitas acuáticasen_US
dc.subjectMacroecologíaen_US
dc.subjectBiodiversidaden_US
dc.subjectEndemismoen_US
dc.titleWorld distribution, diversity and endemism of aquatic macrophytesen_US
dc.typeArtículo de Revistaen_US
uct.catalogadorpopen_US
uct.comunidadRecursos Naturalesen_US
uct.indizacionISI - Science Citation Indexen_US
uct.indizacionSCOPUSen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Murphy_Efremov_Davidson_World_2019.pdf
Size:
439.58 KB
Format:
Adobe Portable Document Format
Description:
Lectura de los datos del documento
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
803 B
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Medio Ambiente