Arrondo, E, Sanz-Aguilar, A., Pérez-Garcia, J., Cortés-Avizanda, A., Sánchez-Zapata, J.A., Donazár, J.A. 2020 Landscape anthropization shapes the survival of a top avian scavenger Biodiversity and Conservation.pp 1–15 https://doi.org/10.1007/s10531-020-01942-6)
|Photo: M. Gomila|
Here, we used the Human Footprint index to examine the impact of landscape anthropization on the survival rates of 66 GPS-tagged adult Eurasian griffon vultures (Gyps fulvus) in two Spanish regions. Foraging in more anthropized areas resulted in a significantly higher individual mortality risk mainly due to collisions with vehicles, poisonings, electrocutions and fatalities with wind turbines. Mean yearly survival rates were estimated at 0.817 ± 0.043 SE and 0.968 ± 0.018 SE for individuals from the more and less anthropized regions, respectively. Additional research should investigate whether some vulture populations could be acting as sinks unnoticed due to metapopulation dynamics. From a broader point of view, our study shows that a straightforward Human Footprint was a useful index to predict the survival of top scavengers and can be highly applicable to planning large-scale conservation measures.
A recent press release (in Spanish) here