Journal ArticleDOI
Amphibian mortality levels on Spanish country roads: descriptive and spatial analysis
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TLDR
Females had higher incidence of road-kills than males, due to the differential activity patterns of both sexes during the reproductive period, and most of the road-killed and live specimens were located on migration routes crossing suitable habitats.Abstract:
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). Females had higher incidence of road-kills than males, due to the differential activity patterns of both sexes during the reproductive period. Adults were the most common age period and also the most road-killed. The spatial distribution patterns of live and road-killed records were clustered. On the sampled roads, there were 0.23 road-kills per kilometre and 52 hotspots of road-kills. The friction map showed that most of the road-killed and live specimens were located on migration routes crossing suitable habitats. Conservation measures should be implemented in these areas, as these mortality patterns may be causing significant negative impacts at the population level.read more
Citations
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Journal ArticleDOI
Roads and wildlife: impacts, mitigation and implications for wildlife management in Australia
TL;DR: The aims of this review were to synthesise the recent literature on road impacts on wildlife, to identify gaps in the understanding of this topic and to guide future research and management in Australia.
Journal ArticleDOI
Effects of road mortality and mitigation measures on amphibian populations.
TL;DR: There seems little likelihood that funding will be forthcoming to ameliorate the problem at the scale necessary to prevent further population declines, and there is scant evidence that such measures will protect populations over the long term.
Journal ArticleDOI
When road-kill hotspots do not indicate the best sites for road-kill mitigation
Fernanda Zimmermann Teixeira,Fernanda Zimmermann Teixeira,Andreas Kindel,Sandra Maria Hartz,Scott Mitchell,Lenore Fahrig +5 more
TL;DR: In this article, the authors identify circumstances in which road-kill hotspots are not appropriate indicators for the selection of the best road kill mitigation sites and show that direct measures of the road impact on the population, such as per capita mortality, are better indicators of appropriate mitigation sites than road kill hotspots.
Journal ArticleDOI
Want to model a species niche? A step-by-step guideline on correlative ecological niche modelling
Neftalí Sillero,Salvador Arenas-Castro,Urtzi Enriquez-Urzelai,Urtzi Enriquez-Urzelai,Cândida Gomes Vale,Diana Sousa-Guedes,Fernando Martínez-Freiría,Raimundo Real,A. Márcia Barbosa +8 more
TL;DR: A step-by-step guideline explaining best practices for calculating correlative ecological niche models considering their conceptual and statistical assumptions and limitations is presented.
Journal ArticleDOI
Anuran road-kills neighboring a peri-urban reserve in the Atlantic Forest, Brazil
Igor Pfeifer Coelho,Fernanda Zimmermann Teixeira,Patrick Colombo,Artur Vicente Pfeifer Coelho,Andreas Kindel +4 more
TL;DR: Anuran mortality was concentrated in summer, and was associated with temperature, rainfall and photoperiod, and there was an association among spatial patterns of mortality and types of land cover, distance from the nearest waterbody, roadside ditches, and artificial light.
References
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
Effect of road traffic on amphibian density
TL;DR: The results indicate that traffic mortality has a significant negative effect on the local density of anurans and suggest that recent increases in traffic volumes worldwide are probably contributing to declines in amphibian populations, particularly in populated areas.
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