SCALE-DEPENDENT VARIABILITY OF DENSITY ESTIMATES AND MORPHOMETRIC RELATIONSHIPS IN SUBTIDAL STANDS OF THE KELP LESSONIA-TRABECULATA IN NORTHERN AND CENTRAL CHILE

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dc.contributor.authorCAMUS, PA
dc.contributor.authorOJEDA, FP
dc.date.accessioned2025-01-23T19:21:59Z
dc.date.available2025-01-23T19:21:59Z
dc.date.issued1992
dc.description.abstractSeveral morphological parameters, and estimates of density and evenness per depth, were analyzed for stands of the subtidal kelp Lessonia trabeculata Villouta et Santelices from 2 zones, central and northern Chile. Two sites in each zone were sampled for 2 yr, and variability patterns were statistically described using site or zone as classification factors. Bathymetric profiles of density showed a strong qualitative and quantitative variation among sites, contrasting with the high evenness in spatial distribution of plants per depth interval, despite intervals of varying length. Relationships among morphometric parameters changed markedly across spatial scales, producing a high variance in biomass predictions. In most cases, strong site- and zone-specific components were identified, which account for the variability in morphology at both spatial scales. Zone effects may mirror water motion and temperature regimes, among other factors, and site effects may be related to specific habitat configurations. These results show that extrapolation from structural features of single stands for characterizing species may result in misleading inferences. The detection of scale-dependent patterns proved to be a useful starting point for comparative studies of population structure, and necessary before attempting generalizations.
dc.fuente.origenWOS
dc.identifier.eissn1616-1599
dc.identifier.issn0171-8630
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98928
dc.identifier.wosidWOS:A1992KL43000009
dc.issue.numero2
dc.language.isoen
dc.pagina.final200
dc.pagina.inicio193
dc.revistaMarine ecology progress series
dc.rightsacceso restringido
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleSCALE-DEPENDENT VARIABILITY OF DENSITY ESTIMATES AND MORPHOMETRIC RELATIONSHIPS IN SUBTIDAL STANDS OF THE KELP LESSONIA-TRABECULATA IN NORTHERN AND CENTRAL CHILE
dc.typeartículo
dc.volumen90
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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