Andalusian Envorinment Awards

Colleagues awarded

Juan Calderón Rubiales, former director of the Doñana Biological Reserve (EBD-CSIC) has been awarded in the last edition of the Environmental Awards of the Junta de Andalucía. Juan ("Perote"), retired now, developed his research and professional career during 40 years in Doñana. The jury has highlighted his contributions to the conservation of Doñana, his commitment, his capacity for consensus and his important contributions to knowledge in the defense and improvement of the environment. At the same time, the harbor of Sevilla has been awarded for its management of the sediments from the maintenance dredging of the Guadalquivir river. Using a protocol designed by Miguel Ferrer's team (EBD-CSIC), the creation of suitable habitats for the rest, reproduction and breeding of water birds and other species of interest has been achieved in sediment depots. It is highlighted that this project is an example of how the economic development of a region can be reconciled with the conservation of the environment as part of the emerging philosophy of "Working with nature". CONGRATULATIONS!!

Press release (Junta de Andalucía)


Natural expansion versus reintroduction in the spanish imperial eagles

Natural expansion versus reintroduction in the spanish imperial eagles

Many threatened species in Europe have been expanding their distributions during recent decades owing to protection measures that overcome historical human activity that has limited their distributions. Range expansion has come about via two processes, natural expansion from existing range and reintroductions to new ranges. Reintroductions may prove to be a better way to establish populations because individuals are less subject to competitive relationships lowering breeding success than individuals expanding from existing populations. Whether this is true, however, remains uncertain. The success of breeding pairs of an expanding and a reintroduced population of spanish imperial eagles monitored for over 15 years in the south of Spain was compared. Significant differences in productivity between breeding pairs of each population were found. Newly established territories in reintroduction areas were almost three times more productive than new territories established as individuals expanded out from an existing population. Evidences suggest that among these eagle populations reintroduced to new areas may fare as well or better than individuals expanding out form existing populations. informacion[at] Morandini et al (2017) Natural expansion versus translocation in a previously human-persecuted bird of prey. Ecol Evol