Reptile road-kills in Southern Brazil: Composition, hot moments and hotspots
| Autor: | Larissa Oliveira Gonçalves, Gabriela Schuck, Juan A. Anza, Isadora Beraldi Esperandio, Fernanda Zimmermann Teixeira, Andreas Kindel, Vinicius A. G. Bastazini, Igor Pfeifer Coelho, Diego Janisch Alvares, Júlia Beduschi |
|---|---|
| Přispěvatelé: | Universidade Federal do Rio Grande do Sul [Porto Alegre] (UFRGS), Station d'écologie théorique et expérimentale (SETE), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Environmental Engineering Mitigation Road ecology Carcass detection Wildlife Road-kill aggregation Distribution (economics) Animals Wild Land cover 010603 evolutionary biology 01 natural sciences Traffic volume Environmental Chemistry Animals Carcass removal Mortality Waste Management and Disposal Wildlife-vehicle collisions business.industry Ecology Lizards Snakes 15. Life on land Pollution Turtles 010601 ecology Motor Vehicles Taxon Geography Seasons [SDE.BE]Environmental Sciences/Biodiversity and Ecology business Brazil Environmental Monitoring |
| Zdroj: | Science of the Total Environment Science of the Total Environment, Elsevier, 2018, 615, pp.1438-1445. ⟨10.1016/j.scitotenv.2017.09.053⟩ |
| ISSN: | 0048-9697 1879-1026 |
| DOI: | 10.1016/j.scitotenv.2017.09.053⟩ |
| Popis: | International audience; Understanding road-kill patterns is the first step to assess the potential effects of road mortality on wildlife populations, as well as to define the need for mitigation and support its planning. Reptiles are one of the vertebrate groups most affected by roads through vehicle collisions, both because they are intentionally killed by drivers, and due to their biological needs, such as thermoregulation, which make them more prone to collisions. We conducted monthly road surveys (33 months), searching for carcasses of freshwater turtles, lizards, and snakes on a 277-km stretch of BR-101 road in Southernmost Brazil to estimate road-kill composition and magnitude and to describe the main periods and locations of road-kills. We modeled the distribution of road-kills in space according to land cover classes and local traffic volume. Considering the detection capacity of our method and carcass persistence probability, we estimated that 15,377 reptiles are road-killed per year (55 reptiles/km/year). Road-kills, especially lizards and snakes, were concentrated during summer, probably due to their higher activity in this period. Road-kill hotspots were coincident among freshwater turtles, lizards, and snakes. Road-kill distribution was negatively related to pine plantations, and positively related to rice plantations and traffic volume. A cost-benefit analysis highlighted that if mitigation measures were installed at road-kill hotspots, which correspond to 21% of the road, they could have avoided up to 45% of recorded reptile fatalities, assuming a 100% mitigation effectiveness. Given the congruent patterns found for all three taxa, the same mitigation measures could be used to minimize the impacts of collision on local herpetofauna. |
| Databáze: | OpenAIRE |
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