Diet, dietary selectivity and density of South American grey fox, Lycalopex griseus, in Central Chile.
The South American grey fox Lycalopex griseus is a canid widely distributed in southern South America; however, some aspects of its biology are still poorly known. We studied the diet and density of L. griseus in the Lago Peñuelas Biosphere Reserve, in Central Chile. The trophic niche breadth was B = 6.16 (Bsta = 0.47) and prey diversity was H' = 2.46 (Hmax ' = 3.17, J' = 0.78). The highest proportions of prey consumed in the diet were Oryctolagus cuniculus (52.21%) and other mammals (32.78%). We compared these results with a latitudinal gradient of diet results for this species in Chile. L. griseus eats mostly mammals (>90% of total prey), consuming the rodent Phyllotis darwini and reptiles in the northern zone; Oryctolagus cuniculus, Octodon degus and Abrocoma bennetti in the central zone; Abrothrix spp. and lagomorphs in the southern zone; and Lepus capensis and Ovis aries in the austral zone. The estimated density of L. griseus in Lago Peñuelas NR was 1.3 foxes/km2 .
Trophic Relations of the Southernmost Populations of Dusicyon in Chile
Etude comparative de la niche ecologique et du regime alimentaire de D. griseus, D. culpaeus, D. fulvipes. Degre de chevauchement
Abstracts of posters
s of Posters Influence of stagnant zones on transient and asymptotic dispersion in macroscopically homogeneous porous media D. Kandhai, D. Hlushkou, A. Hoekstra, P. M. A. Sloot, H. Van As, U. Tallarek Section of Computational Science, University of Amsterdam, Amsterdam, The Netherlands Kramers Lab. of Physical Technology, Delft University of Technology, Delft, The Netherlands Laboratory of Biophysics and Wageningen NMR Centre, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany Lehrstuhl fur Chemische Verfahrenstechnik, Otto-von-Guericke Universitat Magdeburg, Universitatsplatz 2, 39106