Search

Your search keyword '"Donázar José"' showing total 905 results
Start Over Author "Donázar José"
905 results on '"Donázar José"'

2. Assessing genetic diversity patterns at neutral and adaptive loci to inform population reinforcement of an endangered migratory vulture

Author

Bounas, Anastasios, Saravia-Mullin, Victoria, Méndez, Maria, Arkumarev, Volen, Aghajanyan, Lusine, Ararat, Korsh, Buechley, Evan, Dobrev, Vladimir, Dobrev, Dobromir, Efrat, Ron, Klisurov, Ivaylo, Kret, Elzbieta, Skartsi, Theodora, Oppel, Steffen, Petrov, Rusko, Şekercioğlu, Çağan H., Vaidl, Anton, Donázar, José A., Nikolov, Stoyan C., and Sotiropoulos, Konstantinos

Published
2023
Full Text
View/download PDF

4. The role of humans in the diversification of a threatened island raptor

Author

Donázar José, Hiraldo Fernando, Vilà Carles, Rico Ciro, and Agudo Rosa

Subjects
Evolution, QH359-425
Abstract

Abstract Background Anthropogenic habitat modifications have led to the extinction of many species and have favoured the expansion of others. Nonetheless, the possible role of humans as a diversifying force in vertebrate evolution has rarely been considered, especially for species with long generation times. We examine the influence that humans have had on the colonization and phenotypic and genetic differentiation of an insular population of a long-lived raptor species, the Egyptian vulture (Neophron percnopterus). Results The morphological comparison between the Canarian Egyptian vultures and the main and closest population in Western Europe (Iberia) indicated that insular vultures are significantly heavier (16%) and larger (about 3%) than those from Iberia. Bayesian and standard genetic analyses also showed differentiation (FST = 0.11, p < 0.01). The inference of changes in the effective size of the Canarian deme, using two likelihood-based Bayesian approaches, suggested that the establishment of this insular population took place some 2500 years ago, matching the date of human colonization. This is consistent with the lack of earlier fossils. Conclusions Archaeological remains show that first colonizers were Berber people from northern Africa who imported goats. This new and abundant food source could have allowed vultures to colonize, expand and adapt to the island environment. Our results suggest that anthropogenic environmental change can induce diversification and that this process may take place on an ecological time scale (less than 200 generations), even in the case of a long-lived species.

Published
2010
Full Text
View/download PDF

8. Rethinking megafauna.

Author

Moleón, Marcos, Sánchez-Zapata, José, Donázar, José, Revilla, Eloy, Martín-López, Berta, Gutiérrez-Cánovas, Cayetano, Getz, Wayne, Morales-Reyes, Zebensui, Campos-Arceiz, Ahimsa, Crowder, Larry, Galetti, Mauro, González-Suárez, Manuela, He, Fengzhi, Jordano, Pedro, Lewison, Rebecca, Naidoo, Robin, Owen-Smith, Norman, Selva, Nuria, Svenning, Jens-Christian, Tella, José, Zarfl, Christiane, Jähnig, Sonja, Hayward, Matt, Faurby, Søren, García, Nuria, Barnosky, Anthony, and Tockner, Klement

Subjects
apex predators, body size, functional traits, keystone species, large animals, megaherbivores, Animals, Biological Evolution, Body Size, Conservation of Natural Resources, Extinction, Biological
Abstract

Concern for megafauna is increasing among scientists and non-scientists. Many studies have emphasized that megafauna play prominent ecological roles and provide important ecosystem services to humanity. But, what precisely are megafauna? Here, we critically assess the concept of megafauna and propose a goal-oriented framework for megafaunal research. First, we review definitions of megafauna and analyse associated terminology in the scientific literature. Second, we conduct a survey among ecologists and palaeontologists to assess the species traits used to identify and define megafauna. Our review indicates that definitions are highly dependent on the study ecosystem and research question, and primarily rely on ad hoc size-related criteria. Our survey suggests that body size is crucial, but not necessarily sufficient, for addressing the different applications of the term megafauna. Thus, after discussing the pros and cons of existing definitions, we propose an additional approach by defining two function-oriented megafaunal concepts: keystone megafauna and functional megafauna, with its variant apex megafauna. Assessing megafauna from a functional perspective could challenge the perception that there may not be a unifying definition of megafauna that can be applied to all eco-evolutionary narratives. In addition, using functional definitions of megafauna could be especially conducive to cross-disciplinary understanding and cooperation, improvement of conservation policy and practice, and strengthening of public perception. As megafaunal research advances, we encourage scientists to unambiguously define how they use the term megafauna and to present the logic underpinning their definition.

Published
2020

9. Functional traits driving species role in the structure of terrestrial vertebrate scavenger networks

Author

Sebastián-González, Esther, Morales-Reyes, Zebensui, Botella, Francisco, Naves-Alegre, Lara, Pérez-García, Juan M., Mateo-Tomás, Patricia, Olea, Pedro P., Moleón, Marcos, Barbosa, Jomar Magalhães, Hiraldo, Fernando, Arrondo, Eneko, Donázar, José A., Cortés-Avizanda, Ainara, Selva, Nuria, Lambertucci, Sergio A., Bhattacharjee, Aishwarya, Brewer, Alexis L., Abernethy, Erin F., Turner, Kelsey L., Beasley, James C., DeVault, Travis L., Gerke, Hannah C., Rhodes, Olin E., Ordiz, Andrés, Wikenros, Camilla, Zimmermann, Barbara, Wabakken, Petter, Wilmers, Christopher C., Smith, Justine A., Kendall, Corinne J., Ogada, Darcy, Frehner, Ethan, Allen, Maximilian L., Wittmer, Heiko U., Butler, James R. A., du Toit, Johan T., Margalida, Antoni, Oliva-Vidal, Pilar, Wilson, David, Jerina, Klemen, Krofel, Miha, Kostecke, Rich, Inger, Richard, Per, Esra, Ayhan, Yunus, Sanci, Mehmet, Yilmazer, Ünsal, Inagaki, Akino, Koike, Shinsuke, Samson, Arockianathan, Perrig, Paula L., Spencer, Emma E., Newsome, Thomas M., Heurich, Marco, Anadón, José D., Buechley, Evan R., Gutiérrez-Cánovas, Cayetano, Elbroch, L. Mark, and Sánchez-Zapata, José A.

Published
2021

25. Fine-scale collision risk mapping and validation with long-term mortality data reveal current and future wind energy development impact on sensitive species

Author

Bárdenas Reales de Navarra, Ministerio de Economía y Competitividad (España), European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Junta de Andalucía, Ecotone telemetry, Generalitat Valenciana, Morant, Jon, Arrondo, Eneko, Sánchez-Zapata, José A., Donázar, José A., Margalida, Antoni, Carrete, Martina, Blanco, Guillermo, Guil, Francisco, Serrano, David, Pérez-García, Juan M., Bárdenas Reales de Navarra, Ministerio de Economía y Competitividad (España), European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Junta de Andalucía, Ecotone telemetry, Generalitat Valenciana, Morant, Jon, Arrondo, Eneko, Sánchez-Zapata, José A., Donázar, José A., Margalida, Antoni, Carrete, Martina, Blanco, Guillermo, Guil, Francisco, Serrano, David, and Pérez-García, Juan M.

Abstract

The ongoing demand for renewable energy has boosted the development of wind farms worldwide. Given the impact these facilities have on flying species, a spatially explicit assessment of collision risk in vulnerable species is needed to guide management actions and prioritise areas for installing these infrastructures. We used GPS-tracking data of 127 adult and 50 juvenile griffon vultures in peninsular Spain gathered between 2014 and 2022 to evaluate factors influencing vulnerability and exposure and predict collision risk. We validate the observed collision risk with recorded long-term mortality data (1999–2022) at regional and wind farm scales and evaluate the estimated impact of current and future turbine facilities. Our results showed that overall food availability increases vulnerability and exposure, whilst distance to nesting areas and the presence of conspecifics decreased both vulnerability and exposure in adults and juveniles, respectively. Our maps revealed that 19% and 10% of the Spanish peninsular area had a high collision risk for adults and juveniles, respectively. Importantly, the number of turbine casualties was positively related to collision risk at the regional and wind farm scale and ∼ 18 of the breeding population lies within high collision risk areas.Moreover, the areas with the highest risk of collision also have the highest number of turbines and largely overlap with areas suitable for developing new wind farms. Our study highlights the need to reduce collision risk mapping uncertainties by validating model outputs with actual mortality data. Moreover, it emphasises the urgent need for spatial planning of wind energy development, searching for safer alternatives for biodiversity. This approach undoubtedly serves as a tool to define “not go to” areas for installing new turbines for one of the most sensitive species.

Published
2024

29. Blood Lead Levels in an Endangered Vulture Decline Following Changes in Hunting Activity

Author

Gangoso, Laura, primary, Mateo, Rafael, additional, Santamaría-Cervantes, Claudia, additional, García-Alfonso, Marina, additional, Gimeno-Castellano, Cecilia, additional, Arrondo, Eneko, additional, Serrano, David, additional, van Overveld, Thijs, additional, de la Riva, Manuel, additional, Cabrera, Miguel Ángel, additional, and Donázar, José Antonio, additional

Published
2024
Full Text
View/download PDF

30. Phenotypic and environmental correlates of natal dispersal in a long-lived territorial vulture

Author

Serrano, David, Cortés-Avizanda, Ainara, Zuberogoitia, Iñigo, Blanco, Guillermo, Benítez, José Ramón, Ponchon, Cecile, Grande, Juan Manuel, Ceballos, Olga, Morant, Jon, Arrondo, Eneko, Zabala, Jabi, Montelío, Eugenio, Ávila, Enrique, González, José L., Arroyo, Bernardo, Frías, Óscar, Kobierzycki, Erick, Arenas, Rafael, Tella, José Luis, and Donázar, José Antonio

Published
2021
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results