Food predictability determines space use of endangered vultures: implications for management of supplementary feeding.
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Food predictability determines space use of endangered vultures: implications for management of supplementary feeding.

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Food predictability determines space use of endangered vultures: implications for management of supplementary feeding.

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dc.contributor.author López López, Pascual
dc.contributor.author García Ripollés, Clara
dc.contributor.author Urios, Vicente
dc.date.accessioned 2020-04-27T15:28:36Z
dc.date.available 2020-04-27T15:28:36Z
dc.date.issued 2014
dc.identifier.uri https://hdl.handle.net/10550/74057
dc.description.abstract Understanding space use of free‐living endangered animals is key to informing management decisions for conservation planning. Like most scavengers, vultures have evolved under a context of unpredictability of food resources (i.e., exploiting scattered carcasses that are intermittently available). However, the role of predictable sources of food in shaping spatial ecology of vultures has seldom been studied in detail. Here, we quantify the home range of the Egyptian Vulture (Neophron percnopterus), a long‐lived raptor that has experienced severe population decline throughout its range and is qualified as endangered worldwide. To this end, six adults were tracked by satellite telemetry in Spain during the breeding season, from 2007 to 2012, recording 10 360 GPS locations. Using Resource Utilization Functions, we assessed the topology of the Utilization Distribution, a three‐dimensional measure that shows the probability of finding an animal within the home range. Our results showed how food availability, and principally, how food predictability, determines ranging behavior of this species. Egyptian Vultures showed consistent site fidelity across years, measured as the two‐ and three‐dimensional overlap in their home ranges. Space use varied considerably within the home range and remarkably, places located far from nesting sites were used more frequently than some areas located closer. Therefore, traditional conservation measures based on establishing restrictive rules within a fixed radius around nesting sites could be biologically meaningless if other areas within the home range are not protected too. Finally, our results emphasize the importance of anthropogenic predictable sources of food (mainly vulture restaurants) in shaping the space use of scavengers, which is in agreement with recent findings. Hence, measures aimed at ensuring food availability are essential to preserve this endangered vulture, especially in the present context of limiting carrion dumping in the field due to sanitary regulations according to European legislation.
dc.language.iso eng
dc.relation.ispartof Ecological Applications, 2014, vol. 24, num. 5, p. 938-949
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source López López, Pascual García Ripollés, Clara Urios, Vicente 2014 Food predictability determines space use of endangered vultures: implications for management of supplementary feeding. Ecological Applications 24 5 938 949
dc.subject Zoologia
dc.title Food predictability determines space use of endangered vultures: implications for management of supplementary feeding.
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-04-27T15:28:36Z
dc.identifier.doi https://doi.org/10.1890/13-2000.1
dc.identifier.idgrec 137076

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