Do the size and shape of spatial units jeopardize the road mortality-risk factors estimates?

We aimed to evaluate the role of spatial units with different shapes and sizes on road-kill modeling for small vertebrate species. We used the road-kill records of two reptiles, water snake (Helicops infrataeniatus) and D’Orbigny's slider turtle (Trachemys dorbigni), and three mammals, white-eared opossum (Didelphis albiventris), coypu (Myocastor coypus) and Molina's Hog-nosed skunk (Conepatus chinga). Hierarchical partitioning was used to evaluate the independent influence of different land-use classes on road-kill by varying the shape and size of the spatial units. Variables that most explained road-kill were consistent over the different spatial unit types. The standard size seemed to be a reasonable solution for these species. Prior analysis with several sizes and shapes is needed to identify the appropriate spatial unit to model road-kill occurrence for larger vertebrates with different history traits.

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Grilo C. de Resende Cardoso T. Solar R. y Bage A. Do the size and shape of spatial units jeopardize the road mortality-risk factors estimates?. Elsevier, 2016. https://doi.org/10.1016/j.ncon.2016.01.001

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Resource type Text
Date of creation 2025-05-23
Date of last revision 2025-05-23
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Metadata identifier 05dd1fda-7122-5c68-ae0f-de06072fc890
Metadata language Spanish
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ISO 19115 topic category biota
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Name of the dataset creator Grilo, C., de Resende Cardoso, T., Solar, R. y Bage, A.
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Other identifier DOI: 10.1016/j.ncon.2016.01.001
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