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Are Roadkill Hotspots in the Cerrado Equal Among Groups of Vertebrates?

Abstract

Understand the spatial distribution of wildlife roadkill is necessary to design mitigation measures minimizing damage to the fauna and the human population. Thus, we aimed to analyze the spatial distribution of wildlife roadkill in the Brazilian savanna (“Cerrado”) to test whether roadkill hotspots match between the studied animal groups. We collected data of wildlife roadkill over a year in the southwest region of the state of Goiás, Brazil. To understand the distribution of roadkill on highways and to identify the aggregation hotspots, we used the modified two-dimensional Ripley K test and the two-dimensional hotspot identification analysis. We detected that birds and mammals have different aggregation points. These points may vary when the two groups are analyzed together or when species with greater abundance are removed from the analyses. Hence, we concluded that using generalist approaches including several species, are not enough, and can lead to erroneous conclusions. Therefore, it is necessary that the analyses be done in groups.

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Acknowledgements

We thank Suelem Martini Assmann, Gabriel Silva, and other students of the Federal University of Goiás (UFG) who assisted us in the study. We also thank the Foundation for Research Support of the State of Goiás (FAPEG) for the financial support (process 201210267001062, FAPEG Notice # 005/12), the UFG for providing logistic support, on behalf of Professor Alessandro Martins (director of Jataí Regional), the Mato Grosso State University (UNEMAT), and the Coordination for the Improvement of Higher Education Personnel (CAPES).

Funding

This study was funded by Foundation for Research Support of the State of Goiás (FAPEG) -process 201210267001062, FAPEG Notice # 005/12.

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Correspondence to Jefferson Eduardo Silveira Miranda.

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Silveira Miranda, J.E., de Melo, F.R. & Keichi Umetsu, R. Are Roadkill Hotspots in the Cerrado Equal Among Groups of Vertebrates?. Environmental Management (2020). https://doi.org/10.1007/s00267-020-01263-y

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Keywords

  • Road ecology
  • Biodiversity
  • Local extinction
  • Savanna
  • Landscape