




Laurane Winandy and Mathieu Denoël. Behavioral Ecology first published online July 10, 2015. We experimentally assessed the impact of goldfish on the foraging behavior of both phenotypes of palmate newts (Lissotriton helveticus). More particularly, we assessed fish personality by analyzing the foraging activity and the aggressiveness toward newts, and newt personality by analyzing individual difference in boldness. In the presence of fish, fewer newts foraged than in their absence, and paedomorphs were more affected than metamorphs. We found strong personality differences in fish and fewer newts foraged in the presence of a more aggressive fish. Newts differed in boldness, but fish aggressiveness remains a key factor to explain newt behavior. Leer más.
Alexandra Hoffmann, Jörg Plötner, Nicolas B. M. Pruvost, Ditte G. Christiansen, Sandra Röthlisberger, Lukáš Choleva, Peter Mikulíček, Dan Cogălniceanu, István Sas-Kovács, Dmitry Shabanov, Svyatoslav Morozov-Leonov and Heinz-Ulrich Reyer. Molecular Ecology. Volume 24, Issue 17. We found that different hybrid and parental genotypes are not evenly distributed across Europe. Rather, their genetic diversity is structured by latitude and longitude and the presence/absence of parental species but not of triploids. Highest genetic diversity was observed in central and eastern Europe, the lowest in the northwestern parts of Europe. Leer más.
El ajolote es una criatura tan intrigante que Julio Cortázar escribió sobre él. Lamentablemente este anfibio que conquistó al autor de El Axolotl, está a punto de desaparecer. Leer más.
La Guardia Civil de la Región de Murcia ha desarrollado en Cehegín la operación ‘GECKO’ con la que ha logrado esclarecer la supuesta venta irregular de una treintena de aves, reptiles y anfibios exóticos que carecían de documentación y condiciones necesarias para su tenencia, informó hoy este cuerpo. Leer más.
