dc.creatorArchuby, Fernando Miguel
dc.creatorRoche, Andrea
dc.date2020
dc.date.accessioned2023-08-30T16:30:30Z
dc.date.available2023-08-30T16:30:30Z
dc.identifierArchuby, F.M., Roche, A. (2020). Intertidal Death Assemblages as Proxies of Marine Biodiversity. An Example from Northern Patagonia, Argentina. In: Martínez, S., Rojas, A., Cabrera, F. (eds) Actualistic Taphonomy in South America. Topics in Geobiology, vol 48. Springer, Cham. https://doi.org/10.1007/978-3-030-20625-3_3
dc.identifier978-3-030-20625-3
dc.identifierhttp://rid.unrn.edu.ar/handle/20.500.12049/9517
dc.identifierhttps://doi.org/10.1007/978-3-030-20625-3_3
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8530656
dc.descriptionFil: Archuby, Fernando Miguel. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.
dc.descriptionFil: Roche, Andrea. Escuela Superior de Ciencias Marinas (ESCiMar) and Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos Almirante Storni (CIMAS), San Antonio Oeste, Río Negro, Argentina
dc.descriptionMarine conservation biologists have identified mollusks as one of the appropriate surrogate taxa for characterizing marine benthic diversity. In turn, live/dead comparison studies have overwhelmingly demonstrated that mollusk remains are faithful proxies of the mollusk composition of the living communities from which they come, with positive consequences for the paleoecological evaluation of fossil assemblages. In this contribution, we evaluate the way in which mollusk biodiversity is distributed along the lower intertidal to supratidal (high water mark) dead shell assemblages accumulated on a northern Patagonian rocky shore, in order to explore the usefulness of these assemblages as paleontological proxies and potential surrogates of regional biodiversity . A diversity gradient from the lower intertidal to the supratidal was identified which is probably associated with vertical transport, although the influence of gradients of the living community should be tested to confirm this. The outstanding result of this study is the discovery of high levels of diversity among dead shells (31 bivalves and 39 gastropod species) in a single locality and with a moderate sampling effort. The supratidal death assemblage has higher species richness than expected, possibly caused by stranding of the fauna after storms. Nevertheless, this level shows the lowest level of evenness and a strong bias when samples are not sieved through a fine mesh. The record of marine benthic diversity in death assemblages is a promising area of research that deserves to be explored in depth.
dc.formatapplication/pdf
dc.languageen
dc.publisherSpringer
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectCiencias Exactas y Naturales
dc.subjectBiological surrogates
dc.subjectConservation paleobiology
dc.subjectIntertidal
dc.subjectDeath assemblage
dc.subjectRocky bottom
dc.subjectPatagonia
dc.subjectDepth gradient
dc.subjectCiencias Exactas y Naturales
dc.titleIntertidal Death Assemblages as Proxies of Marine Biodiversity. An Example from Northern Patagonia, Argentina.


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