Show simple item record

dc.contributor.authorClavero Pineda, Miguel
dc.contributor.authorPrenda Marín, José 
dc.contributor.authorBlanco Garrido, Francisco 
dc.contributor.authorDelibes Castro, Miguel
dc.identifier.citationCLAVERO PINEDA, M., PRENDA MARÍN, J., BLANCO GARRIDO, F. y DELIBES CASTRO, M. "Hydrological stability and otter trophic diversity : a scale-insensitive pattern?". Canadian journal of zoology. Vol. 86, n. 10 (octubre 2008) p. 1152-1158. ISSN 0008-4301
dc.description.abstractTwo recent works related Eurasian otter (Lutra lutra (L., 1758)) trophic patterns over large areas with the stability of aquatic ecosystems. Higher levels of instability lead to reduced availability and (or) predictability of fish, and consequently, to a decrease in fish consumption by otters. The aim of the present study is to test these macrogeographical patterns in otter diet at regional and local scales. We analysed otter diet in Mediterranean streams in southwestern Iberian Peninsula where clear hydrological stability gradients (related to drainage area or distance to the sea) could be defined. Hydrological stability was directly related to fish consumption and inversely to otter diet diversity in terms of occurrence and biomass, both at regional and local scales. The level of stability of aquatic ecosystems appears to be a critical indirect factor that modulates otter diet through its effects on fish populations. The resulting trophic patterns are maintained from local to macrogeographical scalesen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.titleHydrological stability and otter trophic diversity : a scale-insensitive pattern?en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España

Copyright © 2008-2010. ARIAS MONTANO. Repositorio Institucional de la Universidad de Huelva
Contact Us | Send Feedback |