We are seeking a graduate student interested in evolutionary ecology of amphibians (FPI fellowship – Spain). Background Amphibians are key species in the trophic webs of temporary ponds. The presence of predators, however, can modify the interactions between amphibians and lower trophic levels by either reducing amphibian larval densities or altering their phenotype (morphology, behavior, life histories). Larval amphibians are capable of altering their development in response to the presence of predators, producing anti-predator morphologies, reducing activity levels, and/or accelerating metamorphosis. We will compare the density-dependent and trait-mediated effects of predators on larval amphibians and their consequences for the structure of trophic webs. To this purpose we will use a highly multidisciplinary approach combining field surveys, field, laboratory and mesocosm experiments, quantitative and population genetics, and chemical and endocrine analyses. Description The student will be expected to address and expand some of the aims of the project, combining trophic ecology, population genetics, and developmental evolutionary biology. The position will last four years and the student is required to attain a PhD degree during that time. The first two years are covered by a fellowship that turns into a contract for the time remaining. During this 4-y period the student will be eligible for short stages (2-6 months) in Spanish or foreign institutions that will allow for additional technical or theoretical training as his/her research demands. The approximate salary for the first two years would be 13,700 euros/year, increasing to 16,400 in each of the last two years. Skills and Requisites - Bachelor degree (licenciado) in science (Biology, Environmental science, etc), obtained no sooner than January 2005. - Must be able to properly speak and write in English. - Previous research experience will be highly regarded. Contact info Candidates should contact: Ivan Gomez-Mestre ICAB, Universidad de Oviedo igmestre@ebd.csic.es http://www.gomez-mestre.net or Carmen Diaz-Paniagua Estacion Biologica de Doñana, CSIC poli@ebd.csic.es