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Biogeographical zonation of rocky intertidal communities along the coast of Peru (35 - 135 S Southeast Pacific)

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dc.contributor.author Ibanez-Erquiaga, Bruno
dc.contributor.author Pacheco, Aldo S.
dc.contributor.author Rivadeneira, Marcelo M.
dc.contributor.author Tejada, Claudia L.
dc.date.accessioned 2019-03-05T15:23:30Z
dc.date.available 2019-03-05T15:23:30Z
dc.date.issued 2018
dc.identifier.uri https://hdl.handle.net/20.500.12866/5899
dc.description.abstract The biogeography of the Peruvian Eastern Pacific coast has been described based on oceanographic parameters and qualitative species occurrence data. This has generated disagreement about the limits and existence of different biogeographic units. In this study, the distribution of rocky-shore macrobenthic communities were recorded over 41 sites along the Peruvian coastline (3.5 degrees S-13.5 degrees S) and analyzed together with historic abiotic data in order to quantitatively evaluate the biogeographic zonation of rocky intertidal communities throughout the region and its relationship with environmental variables to propose an update bioregionalization. Clusters and non-metric multidimensional scaling were performed using Bray-Curtis dissimilarity matrices from abundance data to evaluate biogeographic patterns of dissimilarities of rocky-shore communities. Significant turnover of taxa among defined biogeographical units was tested using permutational multivariate dispersion. Relationships between of the biogeographical community's structure and environmental factors were examined using Random Forest analysis on datasets available at Bio-Oracle and Jet Propulsion Laboratory-California Institute of Technology. Variation of community structure of 239 taxa depicted three biogeographical units along the region matching Panamic, transitional and Humboldt provinces. Beta diversity analysis indicated a significant turnover of taxa within the transitional unit. Random forest analysis showed a strong correlation between biogeographic units with phosphate, sea surface temperature, nitrate, dissolved oxygen, cloud fraction, and silicates. Our results set the putative limits of three biogeographic units for rocky-shore communities along the coast of Peru, providing base-line information for understanding further biogeographic changes on communities associated with the ongoing regional coastal cooling and impacts of El Nino events. en_US
dc.language.iso eng
dc.publisher PLoS
dc.relation.ispartof urn:issn:1932-6203
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Peru en_US
dc.subject Article en_US
dc.subject nonhuman en_US
dc.subject correlational study en_US
dc.subject El Nino en_US
dc.subject environmental factor en_US
dc.subject seashore en_US
dc.subject community structure en_US
dc.subject environmental impact en_US
dc.subject oxygenation en_US
dc.subject biogeographic region en_US
dc.subject intertidal zone en_US
dc.subject macrobenthos en_US
dc.subject nitrate en_US
dc.subject phosphate en_US
dc.subject random forest en_US
dc.subject rock en_US
dc.subject sea surface temperature en_US
dc.subject silicate en_US
dc.subject zonation en_US
dc.title Biogeographical zonation of rocky intertidal communities along the coast of Peru (35 - 135 S Southeast Pacific) en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pone.0208244
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.02.00 es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.05.11


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