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Title

Bird roadkill occurences in Aragon, Spain Atropellos mortales de aves en Aragón, España

AuthorsVidal-Vallés, D.; Rodríguez, A.; Pérez-Collazos, Ernesto
KeywordsMitigation
Road ecology
Raptor
Number of roadkills per km index
Necrophagous
Areas of high roadkill occurrence
Issue Date2018
PublisherMuseo de Ciencias Naturales (Barcelona)
CitationANIMAL BIODIVERSITY AND CONSERVATION 41: 379- 388 (2018)
AbstractThe increase in road networks and vehicular traffic has posed a major threat to vertebrates over the last century. Although it is difficult to determine the annual number of avian-vehicle collisions, 2 to 9 million roadkills have been estimated for Europe, with numbers varying from country to country. Few studies have been conducted at a national or regional level in Spain. In this study we used data from La Alfranca Wildlife Rehabilitation Centre database to determine location, season and incidence of avian-vehicle collisions in the autonomous county of Aragon (Spain). A total of 643 wild birds representing 71 species were killed on roads between 2012 and 2014. Nine of these species have a high incidence of avian-vehicle collisions, four a moderate incidence, and 57 a low incidence. The species with the highest incidence was the griffon vulture (120 individuals). Spatial distribution of avian-vehicle collisions was heterogeneous, and the incidence was highest in July, August and September. We identified 41 reas of high roadkill occurrence, using a number of roadkills per km index (RI): 28 in the province of Zaragoza, 9 in Huesca and 4 in Teruel. Management strategies are proposed to reduce this threat on wild birds.
URIhttp://hdl.handle.net/10261/173148
Identifiersissn: 2014-928X
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