title: Effects of road mortality and mitigation measures on amphibian populations.
abstract: Road mortality is a widely recognized but rarely quantified threat to the viability of amphibian populations. The global extent of the problem is substantial and factors affecting the number of animals killed on highways include life-history traits and landscape features. Secondary effects include genetic isolation due to roads acting as barriers to migration. Long-term effects of roads on population dynamics are often severe and mitigation methods include volunteer rescues and under-road tunnels. Despite the development of methods that reduce road kill in specific locations, especially under-road tunnels and culverts, there is scant evidence that such measures will protect populations over the long term. There also seems little likelihood that funding will be forthcoming to ameliorate the problem at the scale necessary to prevent further population declines.
authors: Amphibian and Reptile Conservation, 655A Christchurch Road, Boscombe, Bournemouth, Dorset BH1 4AP, United Kingdom. t.j.c.beebee@sussex.ac.uk
authors: Trevor J C
authors: TJ
authors: Beebee
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control*; D000663:Amphibians / Q000502:physiology*; D000818:Animals; D003247:Conservation of Natural Resources / Q000379:methods* / Q000706:statistics & numerical data; D004779:Environment Design / Q000639:trends*; D009026:Mortality / Q000639:trends*; D014186:Transportation / Q000706:statistics & numerical data*
keywords: cruces para fauna silvestre; mitigación; mitigation; mortalidad en carreteras; población; population; road mortality; wildlife crossings