Deli Saavedra

Rewilding Europe

Rewilding is gaining importance across Europe, as agricultural abandonment trajectories provide opportunities for large‐scale ecosystem restoration. However, its effective implementation is hitherto limited, in part due to a lack of monitoring of rewilding interventions and their interactions. Here, we provide a first assessment of rewilding progre...

Rewilding is a new nature conservation philosophy focused on establishing or maintaining functional trophic chains and important natural processes such as predation, grazing and scavenging. This approach defends that nature should be allowed to return to a state where constant human intervention is not needed for its conservation and management. In...

The Marsican bear is a critically endangered subspecies of the brown bear in Italy. Taking advantage of its high ecological value and public visibility we set up a project in the Central Apennines, to promote bear conservation and rewilding in the area, with a special focus on important habitat corridors between the national and regional parks. Fro...

Rewilding is emerging as a promising restoration strategy to enhance the conservation status of biodiversity and promote self-regulating ecosystems while re-engaging people with nature. Overcoming the challenges in monitoring and reporting rewilding projects would improve its practical implementation and maximize its conservation and restoration ou...

The European landscape is changing and new opportunities for conservation are arising. The main driver of this change is an unprecedented shift in agricultural practices that started in the mid-twentieth century. As a result, shepherds and small-scale farmers release nearly 1 million ha of land from agriculture, each year. Although land abandonment...

Loss of biodiversity due to biological invasions is one of the most critical issues our society is facing. American mink is one of the most nefarious invasive non-native species and has major consequences for diversity, ecosystems and economics. A project to evaluate the impact of American mink has been carried out in Catalonia since 2000 under the...

Traditional land use in Mediterranean region resulted in complex landscape structures characterized by great ecological and cultural diversity. Recent changes such as intensification of agriculture, infrastructure development, rural depopulation and abandonment of the less productive regions led to landscape simplification and loss of biodiversity....

FernAndez MorAn J, Ventura R, Casasampere M, Segura J, Saavedra D, Manteca-Vilanova X, Fern6ndez-Bellon H Perphenazine enanthate usage in wild caught Eurasian otters (Lutra lutra) during a reintroduction project: Clinical approach and pharmacokynetics 27

As part of a translocation project, 28 Eurasian otters (Lutra lutra) were captured from the wild and transported to the Barcelona Zoo for veterinary evaluation, quarantine and intraperitoneal implantation of telemetry devices. Eleven animals were injected with the long-acting neuroleptic (LAN) perphenazine enanthate at the time of capture and the r...

In 1993 a reintroduction project for the Eurasian otter (Lutra lutra) was initiated in northeastern Spain (Girona, Catalonia) to restore extirpated populations. Between 1996 and 2000, 43 otters were captured from southwestern and northern Spain and from Portugal with modified foot-hold traps and transported to Barcelona Zoo. Lesions produced by cap...

The efficacy and safety of the combination of medetomidine and ketamine was examined in order to establish an adequate chemical immobilization protocol in the Eurasian otter (Lutra lutra) for use during translocation projects in Spain. Thirty-eight Eurasian otters ranging in body mass from 3 to 8.7 kg (mean 5.3 kg) were successfully anesthetized on...

At the end of the 1970s otter surveys were developed to study the distribution of the Eurasian otter Lutra lutra. The method was quickly adopted and expanded to include other species of otter. Different methods to estimate otter density were also used. There is some uncertainty, however, as to the significance and precision of the results. Otter su...

Hematologic and serum chemistry reference intervals were determined from 33 wild caught Eurasian otters (Lutra lutra lutra) between November 1995 and May 1998 during a reintroduction project. Blood was obtained by jugular venipuncture after administration of ketamine and medetomidine. The mean, standard deviation, and range for 19 hematology parame...

Otter (Lutra lutra) populations have been declining in Europe for the last fourdecades. Several causes, such as hunting, habitat destruction or human disturbanceshave been involved, but pollution from organochlorine compounds (OCs), andespecially polychlorinated biphenyls (PCBs) seemed to play an important role in thisdecline. Over the last years,...

The objective of the project is the reintroduction of the otter in the Aiguamolls de l'Empordà Natu-ral Park and the Muga and Fluvià basins, and the promotion of river conservation through this emblematic species. Since 1995, 32 individuals from Extremadura (SW Spain) and Asturias (NW Spain) have been released. They have occupated most of the study...

In order to evaluate the success of the reintroduction of the Eurasian otter (Lutra lutra) in the Empordh wetlands ("Parc Natural dels Aiguamolls de I'Empordh"), and the Muga and Fluvih basins, density of fish, biomass and production in the Muga and Fluvia Rivers have been estimated, since fishes represent the principal prey in the otter diet. 12 s...

Els ocells poden transportar molts organismes, alguns dels quals poden ser transmesos a l'home i als animals domèstics. Aquest treball estudia la possible tranmissió de fongs a través de les femtes. Es van recollir les mostres cloacals d'un total de 50 ocells adults d'11 espècies, i de 40 polls de gavina corsa del delta de l'Ebre. En el primer grup...

A 21-year-old phenotypic female with a 46,XY chromosome complement and gonadal absence was studied. Basal levels of plasma immunoreactive luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone, and oestradiol were measured. Pituitary sensitivity and reserve was evaluated by the exogenous administration of synthetic luteinizing h...

Cytogenetic studies in a population of Lutra lutra reintroduced in the "Parc Natural dels Aiguamolls de l'Empordà (Girona, Spain)" and karyotypic comparison with other Mustelidae species The Eurasian Otter Project has reintroduced 41 specimens of Lutra lutra in the "Parc Natural dels Aiguamolls de l'Empordà" (Girona, Spain), from different Iberian...

Cuaderno para el profesor para trabajar con el cuento 'El retorno de la nutria', con la intención de concienciar sobre la preservación de la naturaleza. Contiene información sobre la nutria y su recuperación y sobre la contribución del mundo educativo, que incluye contenidos y objetivos para elaborar una unidad didáctica sobre la nutria. Se centra...

Contiene actividades para trabajar con el cuento 'El retorno de la nutria', con la intención de concienciar sobre la preservación de la naturaleza. Se centra en el área geográfica de la Alta Ribagorça, Pallars Sobirá y Pallars Jussá

Cuaderno para el profesor para trabajar con el cuento 'El retorno de la nutria', con la intención de concienciar sobre la preservación de la naturaleza. Contiene información sobre la nutria y su recuperación y sobre la contribución del mundo educativo, que incluye contenidos y objetivos para elaborar una unidad didáctica sobre la nutria. Se centra...

Contiene actividades para trabajar con el cuento 'El retorno de la nutria', con la intención de concienciar sobre la preservación de la naturaleza. Se centra en el área geográfica de la Muga y del Fluviá