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Ecology, management and conservation in natural and modified habitats
RESEARCH ARTICLE (Open Access)

Road orientation affects the impact of roads on wildlife

Margarita Mulero-Pázmány https://orcid.org/0000-0002-0303-9360 A B * , Laura Rollán C , Marcello D’Amico https://orcid.org/0000-0002-0573-9184 D E and Manuela González-Suárez https://orcid.org/0000-0001-5069-8900 F
+ Author Affiliations
- Author Affiliations

A Department of Animal Biology, Facultad de Ciencias, University of Málaga, 29071 Málaga, Spain.

B School of Biological and Environmental Sciences, Liverpool John Moores University, 3 Byrom Street, Liverpool L3 3AF, UK.

C Cybertracker Conservation, Plaza del Comercio 2, 21750 El Rocío, Huelva, Spain.

D CIBIO-InBIO, School of Agriculture, University of Porto and University of Lisbon, Tapada da Ajuda Campus, 1349-017 Lisbon, Portugal.

E Present address: Department of Conservation Biology, Doñana Biological Station CSIC, C/Américo Vespucio 26, 41092 Seville, Spain.

F Ecology and Evolutionary Biology, School of Biological Sciences, University of Reading, Reading RG6 6EX, UK.

* Correspondence to: muleromara@uma.es

Handling Editor: Tom Sullivan

Wildlife Research 50(1) 39-46 https://doi.org/10.1071/WR21149
Submitted: 12 October 2021  Accepted: 16 April 2022   Published: 14 July 2022

© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution 4.0 International License (CC BY)

Abstract

Context: Understanding the factors determining the impacts of roads and how they fragment landscapes limiting the movement of animals, is key to implement efficient mitigation measures.

Aims: Here we investigate if road orientation in relation to limiting resources, a largely overlooked factor on road impact assessments, can influence the movement of animals within a landscape where water resources are spatially clustered.

Methods: We evaluated movement by monitoring animal tracks on unpaved roads: two with a North–South orientation and two with an East–West orientation.

Key results: Animals were more likely to follow roads leading to limiting resources (i.e. East–West orientation), confirming human linear structures can facilitate wildlife movements. Carnivores were more likely to follow roads with any orientation and for longer compared to ungulates, whereas ungulates followed roads mainly in the orientation of limiting resources.

Conclusions: Road orientation affects how roads influence the movement of animals in landscapes where resources are distributed along a spatial gradient with different effects for ungulates and carnivores.

Implications: The key implications of this work affect the planning and implementation of mitigation strategies and safety measures. Our results suggest road-crossing infrastructure and fences will be most important in roads traversing a gradient to allow wildlife movement while preventing collisions. For roads along a gradient, crossing structures may be less important, but fences or appropriate signage could be useful to prevent or warn drivers of animals travelling on the road.

Keywords: animal movement, habitat fragmentation, landscape connectivity, mitigation, road ecology, roadkill, track census, wildlife collisions.


References

Andersen, GE, Johnson, CN, Barmuta, LA, and Jones, ME (2017). Use of anthropogenic linear features by two medium-sized carnivores in reserved and agricultural landscapes. Scientific Reports 7, 11624.
Use of anthropogenic linear features by two medium-sized carnivores in reserved and agricultural landscapes.Crossref | GoogleScholarGoogle Scholar | 28912508PubMed |

Ascensão, F, Kindel, A, Teixeira, FZ, Barrientos, R, D’Amico, M, Borda-de-Água, L, and Pereira, HM (2019a). Beware that the lack of wildlife mortality records can mask a serious impact of linear infrastructures. Global Ecology and Conservation 19, e00661.
Beware that the lack of wildlife mortality records can mask a serious impact of linear infrastructures.Crossref | GoogleScholarGoogle Scholar |

Ascensão, F, Mestre, F, and Barbosa, AM (2019b). Prioritizing road defragmentation using graph-based tools. Landscape and Urban Planning 192, 103653.
Prioritizing road defragmentation using graph-based tools.Crossref | GoogleScholarGoogle Scholar |

Barrientos, R, Martins, RC, Ascensão, F, D’Amico, M, Moreira, F, and Borda-de-Água, L (2018). A review of searcher efficiency and carcass persistence in infrastructure-driven mortality assessment studies. Biological Conservation 222, 146–153.
A review of searcher efficiency and carcass persistence in infrastructure-driven mortality assessment studies.Crossref | GoogleScholarGoogle Scholar |

Bennett, VJ (2017). Effects of road density and pattern on the conservation of species and biodiversity. Current Landscape Ecology Reports 2, 1–11.
Effects of road density and pattern on the conservation of species and biodiversity.Crossref | GoogleScholarGoogle Scholar |

Bissonette, JA, Kassar, CA, and Cook, LJ (2008). Assessment of costs associated with deer–vehicle collisions: human death and injury, vehicle damage, and deer loss. Human-Wildlife Conflicts 2, 17–27.
Assessment of costs associated with deer–vehicle collisions: human death and injury, vehicle damage, and deer loss.Crossref | GoogleScholarGoogle Scholar |

Blazquez-Cabrera, S, Gastón, A, Beier, P, Garrote, G, Simón, MÁ, and Saura, S (2016). Influence of separating home range and dispersal movements on characterizing corridors and effective distances. Landscape Ecology 31, 2355–2366.
Influence of separating home range and dispersal movements on characterizing corridors and effective distances.Crossref | GoogleScholarGoogle Scholar |

Borkovcová, M, Mrtka, J, and Winkler, J (2012). Factors affecting mortality of vertebrates on the roads in the Czech Republic. Transportation Research Part D: Transport and Environment 17, 66–72.
Factors affecting mortality of vertebrates on the roads in the Czech Republic.Crossref | GoogleScholarGoogle Scholar |

Boughton, RK, Allen, BL, Tillman, EA, Wisely, SM, and Engeman, RM (2019). Road hogs: implications from GPS collared feral swine in pastureland habitat on the general utility of road-based observation techniques for assessing abundance. Ecological Indicators 99, 171–177.
Road hogs: implications from GPS collared feral swine in pastureland habitat on the general utility of road-based observation techniques for assessing abundance.Crossref | GoogleScholarGoogle Scholar |

Broniewicz, E, and Ogrodnik, K (2020). Multi-criteria analysis of transport infrastructure projects. Transportation Research Part D: Transport and Environment 83, 102351.
Multi-criteria analysis of transport infrastructure projects.Crossref | GoogleScholarGoogle Scholar |

Brown, GP, Phillips, BL, Webb, JK, and Shine, R (2006). Toad on the road: use of roads as dispersal corridors by cane toads (Bufo marinus) at an invasion front in tropical Australia. Biological Conservation 133, 88–94.
Toad on the road: use of roads as dispersal corridors by cane toads (Bufo marinus) at an invasion front in tropical Australia.Crossref | GoogleScholarGoogle Scholar |

Castroviejo J (1993) ‘Memoria: Mapa del Parque Nacional de Doñana.’ (Consejo Superior de Investigaciones Cientifícas (CSIC))

Ceia-Hasse, A, Borda-de-Água, L, Grilo, C, and Pereira, HM (2017). Global exposure of carnivores to roads. Global Ecology and Biogeography 26, 592–600.
Global exposure of carnivores to roads.Crossref | GoogleScholarGoogle Scholar |

Chen, HL, and Koprowski, JL (2016). Differential effects of roads and traffic on space use and movements of native forest-dependent and introduced edge-tolerant species. PLoS ONE 11, e0148121.
Differential effects of roads and traffic on space use and movements of native forest-dependent and introduced edge-tolerant species.Crossref | GoogleScholarGoogle Scholar | 26821366PubMed |

Conover, MR (2019). Numbers of human fatalities, injuries, and illnesses in the United States due to wildlife. Human–Wildlife Interactions 13, 12.
Numbers of human fatalities, injuries, and illnesses in the United States due to wildlife.Crossref | GoogleScholarGoogle Scholar |

D’Amico, M, Román, J, de los Reyes, L, and Revilla, E (2015). Vertebrate road-kill patterns in Mediterranean habitats: who, when and where. Biological Conservation 191, 234–242.
Vertebrate road-kill patterns in Mediterranean habitats: who, when and where.Crossref | GoogleScholarGoogle Scholar |

D’Amico, M, Périquet, S, Román, J, and Revilla, E (2016). Road avoidance responses determine the impact of heterogeneous road networks at a regional scale. Journal of Applied Ecology 53, 181–190.
Road avoidance responses determine the impact of heterogeneous road networks at a regional scale.Crossref | GoogleScholarGoogle Scholar |

Diaz-Varela, ER, Vazquez-Gonzalez, I, Marey-Pérez, MF, and Álvarez-López, CJ (2011). Assessing methods of mitigating wildlife–vehicle collisions by accident characterization and spatial analysis. Transportation Research Part D: Transport and Environment 16, 281–287.
Assessing methods of mitigating wildlife–vehicle collisions by accident characterization and spatial analysis.Crossref | GoogleScholarGoogle Scholar |

Duffett, D, D’Amico, M, Mulero-Pázmány, M, and González-Suárez, M (2020). Species’ traits as predictors of avoidance towards roads and traffic. Ecological Indicators 115, 106402.
Species’ traits as predictors of avoidance towards roads and traffic.Crossref | GoogleScholarGoogle Scholar |

Garber NJ, Hoel LA (2019) ‘Traffic and highway engineering.’ (Cengage Learning)

González-Suárez, M, Zanchetta Ferreira, F, and Grilo, C (2018). Spatial and species-level predictions of road mortality risk using trait data. Global Ecology and Biogeography 27, 1093–1105.
Spatial and species-level predictions of road mortality risk using trait data.Crossref | GoogleScholarGoogle Scholar |

Grilo, C, Ascensão, F, Santos-Reis, M, and Bissonette, JA (2011). Do well-connected landscapes promote road-related mortality? European Journal of Wildlife Research 57, 707–716.
Do well-connected landscapes promote road-related mortality?Crossref | GoogleScholarGoogle Scholar |

Grilo, C, Sousa, J, Ascensão, F, Matos, H, Leitão, I, Pinheiro, P, Costa, M, Bernardo, J, Reto, D, Lourenço, R, Santos-Reis, M, and Revilla, E (2012). Individual spatial responses towards roads: implications for mortality risk. PLoS ONE 7, e43811.
Individual spatial responses towards roads: implications for mortality risk.Crossref | GoogleScholarGoogle Scholar | 22970143PubMed |

Jacobson, SL, Bliss-Ketchum, LL, de Rivera, CE, and Smith, WP (2016). A behavior-based framework for assessing barrier effects to wildlife from vehicle traffic volume. Ecosphere 7, e01345.
A behavior-based framework for assessing barrier effects to wildlife from vehicle traffic volume.Crossref | GoogleScholarGoogle Scholar |

Jakes, AF, Jones, PF, Paige, LC, Seidler, RG, and Huijser, MP (2018). A fence runs through it: a call for greater attention to the influence of fences on wildlife and ecosystems. Biological Conservation 227, 310–318.
A fence runs through it: a call for greater attention to the influence of fences on wildlife and ecosystems.Crossref | GoogleScholarGoogle Scholar |

Kang, W, Minor, ES, Woo, D, Lee, D, and Park, C-R (2016). Forest mammal roadkills as related to habitat connectivity in protected areas. Biodiversity and Conservation 25, 2673–2686.
Forest mammal roadkills as related to habitat connectivity in protected areas.Crossref | GoogleScholarGoogle Scholar |

Kasiringua, E, Kopij, G, and Procheş, Ş (2017). Daily activity patterns of ungulates at water holes during the dry season in the Waterberg National Park, Namibia. Russian Journal of Theriology 16, 129–138.
Daily activity patterns of ungulates at water holes during the dry season in the Waterberg National Park, Namibia.Crossref | GoogleScholarGoogle Scholar |

Kihwele, ES, Mchomvu, V, Owen-Smith, N, Hetem, RS, Hutchinson, MC, Potter, AB, Olff, H, and Veldhuis, MP (2020). Quantifying water requirements of African ungulates through a combination of functional traits. Ecological Monographs 90, e01404.
Quantifying water requirements of African ungulates through a combination of functional traits.Crossref | GoogleScholarGoogle Scholar |

Laurance, SGW, Stouffer, PC, and Laurance, WF (2004). Effects of road clearings on movement patterns of understory rainforest birds in central Amazonia. Conservation Biology 18, 1099–1109.
Effects of road clearings on movement patterns of understory rainforest birds in central Amazonia.Crossref | GoogleScholarGoogle Scholar |

Macdonald, DW (1979). Some observations and field experiments on the urine marking behaviour of the red fox, Vulpes vulpes L. Zeitschrift für Tierpsychologie 51, 1–22.
Some observations and field experiments on the urine marking behaviour of the red fox, Vulpes vulpes L.Crossref | GoogleScholarGoogle Scholar |

Matos, C, Sillero, N, and Argaña, E (2012). Spatial analysis of amphibian road mortality levels in northern Portugal country roads. Amphibia-Reptilia 33, 469–483.
Spatial analysis of amphibian road mortality levels in northern Portugal country roads.Crossref | GoogleScholarGoogle Scholar |

Meijer, JR, Huijbregts, MAJ, Schotten, KCGJ, and Schipper, AM (2018). Global patterns of current and future road infrastructure. Environmental Research Letters 13, 064006.
Global patterns of current and future road infrastructure.Crossref | GoogleScholarGoogle Scholar |

Monclús, R, Arroyo, M, Valencia, A, and de Miguel, FJ (2009). Red foxes (Vulpes vulpes) use rabbit (Oryctolagus cuniculus) scent marks as territorial marking sites. Journal of Ethology 27, 153–156.
Red foxes (Vulpes vulpes) use rabbit (Oryctolagus cuniculus) scent marks as territorial marking sites.Crossref | GoogleScholarGoogle Scholar |

Мorelle, К, Lehaire, F, and Lejeune, P (2013). Spatio-temporal patterns of wildlife-vehicle collisions in a region with a high-density road network. Nature Conservation 5, 53–73.
Spatio-temporal patterns of wildlife-vehicle collisions in a region with a high-density road network.Crossref | GoogleScholarGoogle Scholar |

R Foundation for Statistical Computing (2013) ‘R: a language and environment for statistical computing.’ (R Foundation for Statistical Computing: Vienna, Austria)

Román J, Barón A, Revilla E (2010) Evaluación de los efectos del tránsito a motor sobre especies y comunidades de interés en el Espacio Natural Doñana. Estación Biológica de Doñana CSIC, Seville, Spain.

Rytwinski, T, Soanes, K, Jaeger, JAG, Fahrig, L, Findlay, CS, Houlahan, J, van der Ree, R, and van der Grift, EA (2016). How effective is road mitigation at reducing road-kill? A meta-analysis. PLoS ONE 11, e0166941.
How effective is road mitigation at reducing road-kill? A meta-analysis.Crossref | GoogleScholarGoogle Scholar | 27870889PubMed |

Stokes J (2015) What transportation agencies need in environmental impact assessments and other reports to minimise ecological impacts. In ‘Handbook of road ecology’. (Eds R van der Ree, DJ Smith, C Grilo) pp. 43–50. (Wiley-Blackwell)

Suárez-Esteban, A, Delibes, M, and Fedriani, JM (2013). Barriers or corridors? The overlooked role of unpaved roads in endozoochorous seed dispersal. Journal of Applied Ecology 50, 767–774.
Barriers or corridors? The overlooked role of unpaved roads in endozoochorous seed dispersal.Crossref | GoogleScholarGoogle Scholar |

Toger, M, Benenson, I, Wang, Y, Czamanski, D, and Malkinson, D (2018). Pigs in space: an agent-based model of wild boar (Sus scrofa) movement into cities. Landscape and Urban Planning 173, 70–80.
Pigs in space: an agent-based model of wild boar (Sus scrofa) movement into cities.Crossref | GoogleScholarGoogle Scholar |

Visintin, C, van der Ree, R, and McCarthy, MA (2016). A simple framework for a complex problem? Predicting wildlife–vehicle collisions. Ecology and Evolution 6, 6409–6421.
A simple framework for a complex problem? Predicting wildlife–vehicle collisions.Crossref | GoogleScholarGoogle Scholar | 27648252PubMed |

Visintin, C, Golding, N, van der Ree, R, and McCarthy, MA (2018). Managing the timing and speed of vehicles reduces wildlife-transport collision risk. Transportation Research Part D: Transport and Environment 59, 86–95.
Managing the timing and speed of vehicles reduces wildlife-transport collision risk.Crossref | GoogleScholarGoogle Scholar |

Whittington, J, St. Clair, CC, and Mercer, G (2005). Spatial responses of wolves to roads and trails in mountain valleys. Ecological Applications 15, 543–553.
Spatial responses of wolves to roads and trails in mountain valleys.Crossref | GoogleScholarGoogle Scholar |

Whittington, J, Hebblewhite, M, DeCesare, NJ, Neufeld, L, Bradley, M, Wilmshurst, J, and Musiani, M (2011). Caribou encounters with wolves increase near roads and trails: a time-to-event approach. Journal of Applied Ecology 48, 1535–1542.
Caribou encounters with wolves increase near roads and trails: a time-to-event approach.Crossref | GoogleScholarGoogle Scholar |