Habitat suitability vs landscape connectivity determining roadkill risk at a regional scale: a case study on European badger (Meles meles)

  • Mauro FabrizioEmail author
  • Mirko Di Febbraro
  • Marcello D’Amico
  • Ludovico Frate
  • Federica Roscioni
  • Anna Loy
Original Article
Part of the following topical collections:
  1. Road Ecology


Collisions between wildlife and vehicles represent the main conflict between infrastructures and ecosystems. Road mortality is the largest single cause of death for many vertebrates, representing a growing phenomenon of remarkable dimension. Most studies in road ecology investigated spatial roadkill patterns, showing that roadkill probability is often higher near optimal habitat for a large amount of species. Landscape connectivity has been less often considered in roadkill research, and only few studies considered habitat suitability and landscape connectivity at the same time. The purpose of the present study was to evaluate the relative importance of habitat suitability and landscape connectivity in determining roadkill risk for a habitat-generalist carnivore, namely, the Eurasian badger in the Abruzzo region (Central Italy). We collected occurrence data of living individuals from camera trapping and roadkill data of through a Citizen Science initiative. We used the occurrence data to produce a habitat suitability model (HSM) and a landscape connectivity model (LCM). Both HSM and LCM were then used as predictors in combination with road characteristics to fit a roadkill risk model. We found that landscape connectivity was more important than habitat suitability in determining roadkill risk for the Eurasian badger. Overall, the density of regional roads was the most important variable. Our finding highlighted how important is to consider landscape connectivity in planning mitigation measures aimed to preserve habitat-generalist species.


Habitat generalist Habitat suitability Landscape connectivity Roadkill Eurasian badger Meles meles 



We thank Majella National Park, Monte Genzana Alto Gizio Nature Reserve, Zompo Lo Schioppo Nature Reserve, Calanchi di Atri Nature Reserve, Castel Cerreto Nature Reserve, Cascate del Verde Nature Reserve, and Centro Studi per le Reti Ecologiche for providing the data. We also thank two anonymous reviewers whose comments and suggestions remarkably improved the first draft of the manuscript.

Funding information

MD was supported by a REN Biodiversity Chair postdoctoral grant by REN (Redes Energéticas Nacionais) and FCT (Fundação para a Ciência e a Tecnologia) and a Juan de la Cierva—Formación postdoctoral grant by MINECO (Ministerio de Economía y Empresa).

Supplementary material

10344_2018_1241_MOESM1_ESM.docx (141 kb)
ESM 1 (DOCX 141 kb)
10344_2018_1241_MOESM2_ESM.docx (15 kb)
ESM 2 (DOCX 14 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Biosciences and TerritoryUniversità degli Studi del MolisePescheItaly
  2. 2.CIBIO-InBIO, REN Biodiversity ChairVairao Campus of University of PortoVairãoPortugal
  3. 3.CEABN-InBIO, School of AgricultureTapada da Ajuda Campus of University of LisbonLisbonPortugal
  4. 4.Department of Environmental ChemistryInstitute of Environmental Assessment and Water Research IDAEA-CSICBarcelonaSpain

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