Geographic variation in diversity of wave exposed rocky intertidal communities along central Chile

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dc.contributor.authorBroitman, Bernardo R.
dc.contributor.authorVeliz, Fredy
dc.contributor.authorManzur, Tatiana
dc.contributor.authorWieters, Evie A.
dc.contributor.authorRandall Finke, G.
dc.contributor.authorFornes, Paulina A.
dc.contributor.authorValdivia, Nelson
dc.contributor.authorNavarrete, Sergio A.
dc.date.accessioned2025-01-21T00:02:53Z
dc.date.available2025-01-21T00:02:53Z
dc.date.issued2011
dc.description.abstractAlong the coast of central Chile, geographic trends of diversity have been inferred from literature compilations and museum collections based on species range limits for some taxonomic groups. However, spatially-intensive field-based assessments of macrobenthic species richness are largely missing. Over the course of a multiyear study (1998-2005), we characterized latitudinal patterns of rocky intertidal diversity at 18 sites along the coast of central Chile (29-36 degrees S). At each site, the number of sessile and mobile macrobenthic species was quantified in 0.25 m(2) quadrats. Two estimators of local (alpha) diversity were used: observed local species richness, calculated from the asymptote of a species-rarefaction curve, and the Chao2 index, which takes into account the effect of rare species on estimates of local richness. We identified a total of 71 species belonging to 66 genera for a total of 86 taxa. The most diverse groups were herbivorous mollusks (27 taxa) and macroalgae (43 taxa). Diversity showed a complex spatial pattern with areas of high species richness interspersed with areas of low richness. In accordance with previous work, we found no trend in the number of herbivorous mollusks and an inverse and significant latitudinal gradient in the number of algal species. Our results highlight the need for taxonomically diverse assessments of biodiversity of the dominant taxa that conform intertidal communities.
dc.fuente.origenWOS
dc.identifier.eissn0717-6317
dc.identifier.issn0716-078X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95440
dc.identifier.wosidWOS:000290651700011
dc.issue.numero1
dc.language.isoen
dc.pagina.final154
dc.pagina.inicio143
dc.revistaRevista chilena de historia natural
dc.rightsacceso restringido
dc.subjectbiological diversity
dc.subjectintertidal ecology
dc.subjectlatitudinal diversity gradient
dc.subjectspecies richness
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleGeographic variation in diversity of wave exposed rocky intertidal communities along central Chile
dc.typeartículo
dc.volumen84
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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