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vol.19 número3Diversidad de vertebrados marino costeros de la Provincia Weddelliana en un horizonte basal (Ypresiano, Eoceno) del Alomiembro Cucullaea I, Formación La Meseta, isla Seymour (Marambio), AntártidaVariación temporal de la calidad del agua de los estanques y efluentes de los estanques de engorde del camarón de río Macrobrachium amazonicum índice de autoresíndice de materiabúsqueda de artículos
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Revista Peruana de Biología

versión On-line ISSN 1727-9933

Resumen

APAZA, Manuel  y  ROMERO, Leonardo. Distribution and observations on the population of marine otters Lontra felina (Molina 1782) in Peru. Rev. peru biol. [online]. 2012, vol.19, n.3, pp.285-298. ISSN 1727-9933.

We analyzed the distribution of marine otter Lontra felina on the Peruvian coast, from Punta Aguja (05°47'S) to the boundary with Chile (18°21'S). We performed a comprehensive analysis of the literature on L. felina to elucidate a northern boundary of its geographic distribution, concluding that there is no solid evidence of a possible northern limit at 6°S. For the same reasons, the affirmation of a "historic distribution" to the Lobos de Tierra island was discarded. It is also presented information of 272 otters from 130 locations between the years 2000 and 2010. The distribution of these records no has spatial autocorrelation, suggesting a homogeneous distribution. Considering the morphostructure and geomorphology of the Peruvian coast we can see similarities with the division into three zones: north, central and south, the last two add all records of otters, which could provide habitat characteristics that, allow a continuous distribution of L. felina. Finally there is an increase in the number of otters in the Peruvian coast to compare the current values with those of 40 years ago, but we show the lack of traceability of the latest information. We suggest undertaking research linking abundances and densities of otters with the characterization and distribution of their habitats, and behavioral studies that reveal the processes or intrinsic characteristics of the species to move into its geographic range

Palabras clave : endangered species; marine otters; geographic distribution; taxonomy.

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