Amphibian mortality levels on Spanish country roads: descriptive and spatial analysis.

Road-kills are the greatest source of direct human-induced wildlife mortality, especially in amphibians. Country roads could act as the most important source of mortality when main roads act as strong barriers hampering the migration movements of some species. Mortality patterns of amphibians on country roads (1380 km) were studied in Salamanca (Spain) in order to quantify the mortality levels, to test the effects of sex and age factors on road-kills, to determine the spatial distribution patterns of road-kills, and to identify routes of migration through a friction map and hotspots of road-kills. From a total of 819 records of amphibians, 38.1% were road-killed and 61.9% were live. Fourteen amphibian species were recorded during the surveys (10 anurans and four urodeles). The species more affected by road-kills were the anurans Bufo calamita, Pelobates cultripes and B. bufo (38.5, 23.4 and 11.9%, respectively …

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Sillero N. Amphibian mortality levels on Spanish country roads: descriptive and spatial analysis. Brill, 2008. https://doi.org/10.1163/156853808785112066

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Retrieved: 18 Dec 2025 04:19:25
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Resource type Text
Date of creation 2025-05-23
Date of last revision 2025-05-23
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Metadata identifier ce293889-8d27-5ec8-ab02-dc067891ff0a
Metadata language Spanish
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ISO 19115 topic category biota
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Name of the dataset creator Sillero, N.
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Other identifier DOI: 10.1163/156853808785112066
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