Scale, rank and model selection in evaluations of land cover influence on wildlife–vehicle collisions
Scott H. Markwith A D , Aaron H. Evans A , Vanessa Pereira da Cunha B and Julio Cesar de Souza B CA Department of Geosciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33444, USA.
B Biological Science, Universidade Federal de Mato Grosso do Sul, Aquidauana, MS, 79200-000, Brazil.
C Visiting Researcher, CAPES-Brazil Scholarship, University of Kent, Canterbury, CT2 7NZ, UK.
D Corresponding author. Email: smarkwit@fau.edu
Wildlife Research 47(1) 44-54 https://doi.org/10.1071/WR19108
Submitted: 29 June 2019 Accepted: 23 August 2019 Published: 8 January 2020
Abstract
Context: Examining land cover’s influences on roadkills at single predetermined scales is more common than evaluating multiple scales, but examining land cover at the appropriate scale may be necessary for efficient design of mitigation measures, and that appropriate scale may be difficult to discern a priori. In addition, the taxonomic rank at which data is analysed may influence results and subsequent conclusions concerning mitigation.
Aims: The objective of the present study was to assess the influence of variation in spatial scales of land cover explanatory variables and taxonomic rank of response variables in models of wildlife–vehicle collisions (WVCs). Research questions include: (1) do the scales of land cover measurement that produce the highest quality models differ among species; (2) do the factors that influence roadkill events differ within species at different scales of measurement and among species overall; and (3) does the taxonomic rank at which data is analysed influence the selection of explanatory variables?
Methods: Four frequent WVC species representing diverse taxonomic classes, i.e. two mammals (Cerdocyon thous and Hydrochaeris hydrochaeris), one reptile (Caiman yacare) and one bird (Caracara plancus), were examined. WVCs were buffered, land cover classes from classified satellite imagery at three buffer radii were extracted, and logistic regression model selection was used.
Key results: The scale of land cover variables selected for the highest quality models (and the selected variables themselves) may vary among wild fauna. The same explanatory variables and formulae are not always included in the candidate models in all compared scales for a given species. Explanatory variables may differ among taxonomically similar species, e.g. mammals, and pooling species at higher taxonomic ranks can result in models that do not correspond with species-level models of all pooled species.
Conclusions: The most accurate analyses of WVCs will likely be found when species are analysed individually and multiple scales of predictor variable collection are evaluated.
Implications: Mitigating the effects of roadways on wildlife population declines for both common and rare species is resource intensive. Resources spent optimising models for spatially targeting management actions may reduce the amount of resources used and increase the effectiveness of these actions.
Additional keywords: event buffering, model selection, roadkill, taxonomic rank, wildlife–vehicle collisions
References
Alho, C. J. R., and Rondon, N. L. (1987). Habitats, population densities, and social structure of capybaras (Hydrochaeris hydrochaeris, Rodentia) in the Pantanal, Brazil. Revista Brasileira de Zoologia 4, 139–149.| Habitats, population densities, and social structure of capybaras (Hydrochaeris hydrochaeris, Rodentia) in the Pantanal, Brazil.Crossref | GoogleScholarGoogle Scholar |
Alho, C. J. R., and Silva, J. S. V. (2012). Effects of severe floods and droughts on wildlife of the Pantanal wetland (Brazil) – a review. Animals 2, 591–610.
| Effects of severe floods and droughts on wildlife of the Pantanal wetland (Brazil) – a review.Crossref | GoogleScholarGoogle Scholar |
Alho, C. J. R., Camargo, G., and Fischer, E. (2011). Terrestrial and aquatic mammals of the Pantanal. Brazilian Journal of Biology 71, 297–310.
| Terrestrial and aquatic mammals of the Pantanal.Crossref | GoogleScholarGoogle Scholar |
Alvares, C. A., Stape, J. L., Sentelhas, P. C., Gonçalves, J. L. de M., and Sparovek, G. (2013). Köppen’s climate classification map for Brazil. Meteorologische Zeitschrift 22, 711–728.
| Köppen’s climate classification map for Brazil.Crossref | GoogleScholarGoogle Scholar |
Ament, R., Clevenger, A. P., Yu, O., and Hardy, A. (2008). An assessment of road impacts on wildlife populations in U.S. National Parks. Environmental Management 42, 480–496.
| An assessment of road impacts on wildlife populations in U.S. National Parks.Crossref | GoogleScholarGoogle Scholar | 18437455PubMed |
Ascensão, F., Desbiez, A. L., Medici, E. P., and Bager, A. (2017). Spatial patterns of road mortality of medium–large mammals in Mato Grosso do Sul, Brazil. Wildlife Research 44, 135–146.
| Spatial patterns of road mortality of medium–large mammals in Mato Grosso do Sul, Brazil.Crossref | GoogleScholarGoogle Scholar |
Barrientos, R., and Miranda, J. D. (2012). Can we explain regional abundance and road-kill patterns with variables derived from local-scale road-kill models? Evaluating transferability with the European polecat. Diversity & Distributions 18, 635–647.
| Can we explain regional abundance and road-kill patterns with variables derived from local-scale road-kill models? Evaluating transferability with the European polecat.Crossref | GoogleScholarGoogle Scholar |
Berta, A. (1982). Cerdocyon thous. Mammalian Species 186, 1–4.
| Cerdocyon thous.Crossref | GoogleScholarGoogle Scholar |
Braz, V. S., and França, F. G. R. (2016). Wild vertebrate roadkill in the Chapada dos Veadeiros National Park, Central Brazil. Biota Neotropica 16, e0182.
| Wild vertebrate roadkill in the Chapada dos Veadeiros National Park, Central Brazil.Crossref | GoogleScholarGoogle Scholar |
Bueno, A. A., and Motta-Junior, J. C. (2004). Food habits of two syntopic canids, the maned wolf (Chrysocyon brachyurus) and the crab-eating fox (Cerdocyon thous), in southeastern Brazil. Revista Chilena de Historia Natural 77, 5–14.
Bueno, C., Faustino, M. T., and Freitas, S. R. (2013). Influence of landscape characteristics on capybara road-kill on highway BR-040, southeastern Brazil. Oecologia Australis 17, 130–137.
| Influence of landscape characteristics on capybara road-kill on highway BR-040, southeastern Brazil.Crossref | GoogleScholarGoogle Scholar |
Bueno, C., Sousa, C. O. M., and Freitas, S. R. (2015). Habitat or matrix: which is more relevant to predict road-kill of vertebrates? Brazilian Journal of Biology 75, S228–S238.
| Habitat or matrix: which is more relevant to predict road-kill of vertebrates?Crossref | GoogleScholarGoogle Scholar |
Burnham, K. P., and Anderson, D. R. (1998). ‘Model Selection and Multimodel Inference: a Practical Information-theoretic Approach.’ 2nd edn. (Springer-Verlag: Berlin, Germany.)
Campos, Z., and Magnusson, W. E. (1995). Relationship between rainfall, nesting habitat and fecundity of Caiman crocodilus yacare in the Pantanal, Brazil. Journal of Tropical Ecology 11, 351–358.
| Relationship between rainfall, nesting habitat and fecundity of Caiman crocodilus yacare in the Pantanal, Brazil.Crossref | GoogleScholarGoogle Scholar |
Campos, Z., Coutinho, M., and Magnusson, W. E. (2003). Terrestrial activity of caiman in the Pantanal, Brazil. Copeia 2003, 628–634.
| Terrestrial activity of caiman in the Pantanal, Brazil.Crossref | GoogleScholarGoogle Scholar |
Campos, Z., Coutinho, M., Mourão, G., Bayliss, P., and Magnusson, W. E. (2006). Long distance movements by Caiman crocodilus yacare: implications for management of the species in the Brazilian Pantanal. The Herpetological Journal 16, 123–132.
Caro, T. M., Shargel, J. A., and Stoner, C. J. (2000). Frequency of medium-size mammals road kills in an agricultural landscape in California. American Midland Naturalist 144, 362–369.
| Frequency of medium-size mammals road kills in an agricultural landscape in California.Crossref | GoogleScholarGoogle Scholar |
Carvalho, F., and Mira, A. (2011). Comparing annual vertebrate road kills over two time periods, 9 years apart: a case study in Mediterranean farmland. European Journal of Wildlife Research 57, 157–174.
| Comparing annual vertebrate road kills over two time periods, 9 years apart: a case study in Mediterranean farmland.Crossref | GoogleScholarGoogle Scholar |
Carvalho, N. C., Bordignon, M. O., and Shapiro, J. T. (2014). Fast and furious: a look at the death of animals on the highway MS-080, southwestern Brazil. Iheringia, Série Zoologia 104, 43–49.
| Fast and furious: a look at the death of animals on the highway MS-080, southwestern Brazil.Crossref | GoogleScholarGoogle Scholar |
Catella, A. C., Thomas, W. M., and Mourão, G. M. (2010). ‘BR-262 no Pantanal: Cenário de Encontros entre Homens e Animais Silvestres.’ (Embrapa Pantanal: Corumbá, Mato Grosso do Sul, Brazil.) [In Portuguese]
Colino-Rabanal, V. J., Lizana, M., and Peris, S. J. (2011). Factors influencing wolf Canis lupus roadkills in northwest Spain. European Journal of Wildlife Research 57, 399–409.
| Factors influencing wolf Canis lupus roadkills in northwest Spain.Crossref | GoogleScholarGoogle Scholar |
Conard, J. M., and Gipson, P. S. (2006). Spatial and seasonal variation in wildlife–vehicle collisions. Prairie Naturalist 38, 251–260.
Coutinho, M., and Campos, Z. (1996). Effect of habitat and seasonality on the densities of caiman in southern Pantanal, Brazil. Journal of Tropical Ecology 12, 741–747.
| Effect of habitat and seasonality on the densities of caiman in southern Pantanal, Brazil.Crossref | GoogleScholarGoogle Scholar |
Crooks, K. R., and Sanjayan, M. (2006). ‘Connectivity Conservation.’ (Cambridge University Press: Cambridge, UK.)
Cunha, H. F., Moreira, F. G. A., and Silva, S. S. (2010). Roadkill of wild vertebrates along the GO-060 road between Goiânia and Iporá, Goiás State, Brazil. Acta Scientiarum. Biological Sciences 32, 257–263.
| Roadkill of wild vertebrates along the GO-060 road between Goiânia and Iporá, Goiás State, Brazil.Crossref | GoogleScholarGoogle Scholar |
Cushman, S. A., and McGarigal, K. (2002). Hierarchical, multi-scale decomposition of species–environment relationships. Landscape Ecology 17, 637–646.
| Hierarchical, multi-scale decomposition of species–environment relationships.Crossref | GoogleScholarGoogle Scholar |
Danks, Z. D., and Porter, W. F. (2010). Temporal, spatial, and landscape habitat characteristics of moose–vehicle collisions in western Maine. The Journal of Wildlife Management 74, 1229–1241.
Evink, G. L., Garret, P., Zeigler, D., and Berry, J. (1996). Trends in addressing transportation related wildlife mortality. Publication no. FL-ER-58-96. Florida Department of Transportation, Tallahassee, FL, USA.)
Finder, R. A., Roseberry, J. L., and Woolf, A. (1999). Site and landscape conditions at white-tailed deer/vehicle collision locations in Illinois. Landscape and Urban Planning 44, 77–85.
| Site and landscape conditions at white-tailed deer/vehicle collision locations in Illinois.Crossref | GoogleScholarGoogle Scholar |
Fischer, W. A., Ramos-Neto, M. B., Silveira, L., and Jácomo, A. T. A. (2003). Human transportation network as ecological barrier for wildlife on Brazilian Pantanal-Cerrado corridors. In ‘Proceedings of the 2003 International Conference on Ecology and Transportation’. (Eds C. L. Irwin, P. Garrett and K. P. McDermott.) pp. 182–194. (Center for Transportation and the Environment, North Carolina State University: Raleigh, NC, USA.)
Fischer, W., Godoi, R. F., and Filho, A. C. P. (2018). Roadkill records of reptiles and birds in Cerrado and Pantanal landscapes. Check List 14, 845–876.
| Roadkill records of reptiles and birds in Cerrado and Pantanal landscapes.Crossref | GoogleScholarGoogle Scholar |
Forman, R. T. T. (1995). ‘Land Mosaics: the Ecology of Landscapes and Regions.’ (Cambridge University Press: Cambridge, UK.)
Forman, R. T. T., and Alexander, L. E. (1998). Roads and their major ecological effects. Annual Review of Ecology and Systematics 29, 207–231.
| Roads and their major ecological effects.Crossref | GoogleScholarGoogle Scholar |
Forman, R. T. T., Friedman, D. S., Fitzhenry, D., Martin, J. D., Chen, A. S., and Alexander, L. E. (1997). Ecological effects of roads: toward three summary indices and an overview for North America. In ‘Habitat Fragmentation and Infrastructure – Proceedings’. (Ed. K. Canters.) pp. 40–54. (Ministry of Transport, Public Works & Water Management: Delft, The Netherlands.)
Fox, J., and Weisberg, S. (2018). ‘An R Companion to Applied Regression.’ (Sage Publications: Thousand Oaks, CA, USA.)
Freitas, S. R., Oliveira, A. N., Ciocheti, G., Vieira, M. V., and Matos, D. M. S. (2014). How landscape features influence road-kill of three species of mammals in the Brazilian savanna? Oecologia Australis 18, 35–45.
| How landscape features influence road-kill of three species of mammals in the Brazilian savanna?Crossref | GoogleScholarGoogle Scholar |
Glista, D. J., DeVault, T. L., and DeWoody, J. A. (2008). Vertebrate road mortality predominantly impacts amphibians. Herpetological Conservation and Biology 3, 77–87.
Gomes, L., Grilo, C., Silva, C., and Mira, A. (2009). Identification methods and deterministic factors of owl roadkill hotspot locations in Mediterranean landscapes. Ecological Research 24, 355–370.
| Identification methods and deterministic factors of owl roadkill hotspot locations in Mediterranean landscapes.Crossref | GoogleScholarGoogle Scholar |
Grilo, C., de Resende Cardoso, T., Solar, R., and Bager, A. (2016). Do the size and shape of spatial units jeopardize the road mortality–risk factors estimates? Natureza & Conservação 14, 8–13.
| Do the size and shape of spatial units jeopardize the road mortality–risk factors estimates?Crossref | GoogleScholarGoogle Scholar |
Gunson, K. E., Mountrakis, G., and Quackenbush, L. J. (2011). Spatial wildlife–vehicle collision models: a review of current work and its application to transportation mitigation projects. Journal of Environmental Management 92, 1074–1082.
| Spatial wildlife–vehicle collision models: a review of current work and its application to transportation mitigation projects.Crossref | GoogleScholarGoogle Scholar | 21190788PubMed |
Hothorn, T., Zeileis, A., Farebrother, R. W., Cummins, C., Millo, G., Mitchell, D., and Zeileis, M. A. (2019). R package ‘lmtest’. Available at https://cran.r-project.org/web/packages/lmtest/index.html [verified 9 December 2019].
Hubbard, M. W., Danielson, B. J., and Schmitz, R. A. (2000). Factors influencing the location of deer–vehicle accidents in Iowa. The Journal of Wildlife Management 64, 707–713.
| Factors influencing the location of deer–vehicle accidents in Iowa.Crossref | GoogleScholarGoogle Scholar |
Juarez, K. M., and Marinho-Filho, J. (2002). Diet, habitat use, and home ranges of sympatric canids in central Brazil. Journal of Mammalogy 83, 925–933.
| Diet, habitat use, and home ranges of sympatric canids in central Brazil.Crossref | GoogleScholarGoogle Scholar |
Kanda, L. L., Fuller, T. K., and Sievert, P. R. (2006). Landscape associations of road-killed opossums (Didelphis virginiana) in central Massachusetts. American Midland Naturalist 156, 128–134.
| Landscape associations of road-killed opossums (Didelphis virginiana) in central Massachusetts.Crossref | GoogleScholarGoogle Scholar |
Langen, T. A., Ogden, K., and Schwarting, L. (2009). Predicting hotspots of herpetofauna road mortality along highway road networks: model creation and experimental validation. The Journal of Wildlife Management 73, 104–114.
| Predicting hotspots of herpetofauna road mortality along highway road networks: model creation and experimental validation.Crossref | GoogleScholarGoogle Scholar |
MacKinnon, C. A., Moore, L. A., and Brooks, R. J. (2005). Why did the reptile cross the road? Landscape factors associated with road mortality of snakes and turtles in the south eastern Georgian Bay area. In ‘Proceedings of the Parks Research Forum of Ontario (PRFO) and Carolinian Canada Coalition (CCC) Annual General Meeting’. pp. 153–166. (University of Guelph: Guelph, ON, Canada.)
Malo, J. E., Suárez, F., and Díez, A. (2004). Can we mitigate animal–vehicle accidents using predictive models? Journal of Applied Ecology 41, 701–710.
| Can we mitigate animal–vehicle accidents using predictive models?Crossref | GoogleScholarGoogle Scholar |
Mangiafico, S. (2019). rcompanion: functions to support extension education program evaluation. Available at https://CRAN.R-project.org/package=rcompanion [verified December 2019]
McShea, W. J., Stewart, C. M., Kearns, L. J., Liccioli, S., and Kocka, D. (2008). Factors affecting autumn deer–vehicle collisions in a rural Virginia county. Human–Wildlife Conflicts 2, 110–121.
Melo, E. S., and Santos-Filho, M. (2007). Efeitos da BR-070 na Província Serrana de Cáceres, Mato Grosso, sobre a comunidade de vertebrados silvestres. Revista Brasileira de Zoociências 9, 185–192.
Motulsky, H., and Christopoulos, A. (2004). ‘Fitting Models to Biological Models using Linear and Nonlinear Regression: a Practical Guide to Curve Fitting.’ (Oxford University Press: Oxford, UK.)
Ng, J. W., Nielson, C., and St Clair, C. C. (2008). Landscape and traffic factors influencing deer–vehicle collisions in an urban environment. Human–Wildlife Interactions 2, 34–47.
Nielsen, C. K., Anderson, R. G., and Grund, M. D. (2003). Landscape influences on deer–vehicle accident areas in an urban environment. The Journal of Wildlife Management 67, 46–51.
| Landscape influences on deer–vehicle accident areas in an urban environment.Crossref | GoogleScholarGoogle Scholar |
Peterson, B. G., Carl, P., Boudt, K., Bennett, R., Ulrich, J., Zivot, E., Cornilly, D., Hung, E., Lestel, M., Balkissoon, K., and Wuertz, D. (2019). R Package ‘performanceanalytics’. Available at https://cran.r-project.org/web/packages/PerformanceAnalytics/index.html [verified 09 December 2019].
Prado, T. R., Ferreira, A. A., and Sobrinha Guimarães, Z. F. (2006). Efeito da implantação de rodovias no cerrado sobre a fauna de vertebrados. Acta Scientiarum. Biological Sciences 18, 237–241.
R Core Team (2013). ‘R: A language and environment for statistical computing.’ (R Foundation for Statistical Computing, Vienna. Available at http://www.R-project.org/ [verified December 2019].
Ramp, D., Caldwell, J., Edwards, K. A., Warton, D., and Croft, D. B. (2005). Modelling of wildlife fatality hotspots along the snowy mountain highway in New South Wales, Australia. Biological Conservation 126, 474–490.
| Modelling of wildlife fatality hotspots along the snowy mountain highway in New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |
Rocha, E. H. D. (2005). Impactos dos transportes rodoviários na fauna. Thesis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Rosa, A. O., and Mauhs, J. (2004). Atropelamentos de animais silvestres na Rodovia RS-040. Caderno de Pesquisa. Série Biologia 16, 35–42.
Saeki, M., and Macdonald, D. W. (2004). The effects of traffic on the raccoon dog (Nyctereutes procyonoides viverrinus) and other mammals in Japan. Biological Conservation 118, 559–571.
| The effects of traffic on the raccoon dog (Nyctereutes procyonoides viverrinus) and other mammals in Japan.Crossref | GoogleScholarGoogle Scholar |
Santos, S. A., Salis, S. M., and Comastri Filho, J. A. (2016). ‘Cavalo Pantaneiro: Rústico por Natureza.’ (Embrapa Informação Tecnológica: Brasilia, Brazil.)
Santos, R. A. L., Ascensão, F., Ribeiro, M. L., Bager, A., Santos-Reis, M., and Aguiar, L. M. (2017). Assessing the consistency of hotspot and hot-moment patterns of wildlife road mortality over time. Perspectives in Ecology and Conservation 15, 56–60.
| Assessing the consistency of hotspot and hot-moment patterns of wildlife road mortality over time.Crossref | GoogleScholarGoogle Scholar |
Seiler, A. (2005). Predicting locations of moose–vehicle collision in Sweden. Journal of Applied Ecology 42, 371–382.
| Predicting locations of moose–vehicle collision in Sweden.Crossref | GoogleScholarGoogle Scholar |
Senay, C., Taranu, Z. E., Bourque, G., Macnaughton, C. J., Lanthier, G., Harvey-Lavoie, S., and Boisclair, D. (2017). Effects of rive scale flow regimes and local scale habitat properties on fish community attributes. Aquatic Sciences 79, 13–26.
| Effects of rive scale flow regimes and local scale habitat properties on fish community attributes.Crossref | GoogleScholarGoogle Scholar |
Sousa, M. A. N., and Miranda, P. C. (2010). Mamíferos terrestres encontrados atropelados na rodovia BR-230/PB entre Campina Grande e João Pessoa. Revista de Biologia e Farmácia 4, 72–82.
Souza, J. C., Silva, R. M., Rezende, M. P. G., and Freitas, J. A. (2012). Pecuária de Corte Pantaneira. In ‘Pantanal Produzindo com Sustentabilidade’. (Ed. J. C. Souza.) pp. 85–101. (Universidade Federal de Mato Grosso do Sul: Campo Grande, Brazil.)
Souza, J. C., Cunha, V. P., and Markwith, S. H. (2015). Spatiotemporal variation in human–wildlife conflicts along highway BR-262 in the Brazilian Pantanal. Wetlands Ecology and Management 23, 227–239.
| Spatiotemporal variation in human–wildlife conflicts along highway BR-262 in the Brazilian Pantanal.Crossref | GoogleScholarGoogle Scholar |
Teodoro, P. E., Oliveira-Júnior, J. F., da Cunha, E. R., Correa, C. C. G., Torres, F. E., Bacani, V. M., Gois, G., and Ribeiro, L. P. (2016). Cluster analysis applied to the spatial and temporal variability of monthly rainfall in Mato Grosso do Sul State, Brazil. Meteorology and Atmospheric Physics 128, 197–209.
| Cluster analysis applied to the spatial and temporal variability of monthly rainfall in Mato Grosso do Sul State, Brazil.Crossref | GoogleScholarGoogle Scholar |
Vergara, M., Cushman, S. A., Urra, F., and Ruiz-González, A. (2016). Shaken but not stirred: multiscale habitat suitability modeling of sympatric marten species (Martes martes and Martes foina) in the northern Iberian peninsula. Landscape Ecology 31, 1241–1260.
| Shaken but not stirred: multiscale habitat suitability modeling of sympatric marten species (Martes martes and Martes foina) in the northern Iberian peninsula.Crossref | GoogleScholarGoogle Scholar |