How animal movement influences wildlife-vehicle collision risk: a mathematical framework for range-resident species
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| author | de Figueiredo, Benjamin Garcia Silva, Inês Noonan, Michael J. Fleming, Christen H. Fagan, William F. Calabrese, Justin M. Martinez-Garcia, Ricardo |
| author_facet | de Figueiredo, Benjamin Garcia Silva, Inês Noonan, Michael J. Fleming, Christen H. Fagan, William F. Calabrese, Justin M. Martinez-Garcia, Ricardo |
| contents | Wildlife-vehicle collisions (WVC) threaten both biodiversity and human safety worldwide. Despite empirical efforts to characterize the major determinants of WVC risk and optimize mitigation strategies, we still lack a theoretical framework linking traffic, landscape, and individual movement features to collision risk. Here, we introduce such a framework by leveraging recent advances in movement ecology and reaction-diffusion stochastic processes with partially absorbing boundaries. Focusing on range-resident terrestrial mammals -- responsible for most fatal WVCs -- we model interactions with a single linear road and derive exact expressions for key survival statistics, including mean collision time and road-induced lifespan reduction. These quantities are expressed in terms of measurable parameters, such as traffic intensity or road width, and movement parameters that can be robustly estimated from relocation data, such as home-range crossing times, home-range sizes, or distance between home-range center and road. Therefore, our work provides an effective theoretical framework integrating movement and road ecology, laying the foundation for data-driven, evidence-based strategies to mitigate WVCs and promote safer, more sustainable transportation networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_17058 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | How animal movement influences wildlife-vehicle collision risk: a mathematical framework for range-resident species de Figueiredo, Benjamin Garcia Silva, Inês Noonan, Michael J. Fleming, Christen H. Fagan, William F. Calabrese, Justin M. Martinez-Garcia, Ricardo Populations and Evolution Statistical Mechanics Wildlife-vehicle collisions (WVC) threaten both biodiversity and human safety worldwide. Despite empirical efforts to characterize the major determinants of WVC risk and optimize mitigation strategies, we still lack a theoretical framework linking traffic, landscape, and individual movement features to collision risk. Here, we introduce such a framework by leveraging recent advances in movement ecology and reaction-diffusion stochastic processes with partially absorbing boundaries. Focusing on range-resident terrestrial mammals -- responsible for most fatal WVCs -- we model interactions with a single linear road and derive exact expressions for key survival statistics, including mean collision time and road-induced lifespan reduction. These quantities are expressed in terms of measurable parameters, such as traffic intensity or road width, and movement parameters that can be robustly estimated from relocation data, such as home-range crossing times, home-range sizes, or distance between home-range center and road. Therefore, our work provides an effective theoretical framework integrating movement and road ecology, laying the foundation for data-driven, evidence-based strategies to mitigate WVCs and promote safer, more sustainable transportation networks. |
| title | How animal movement influences wildlife-vehicle collision risk: a mathematical framework for range-resident species |
| topic | Populations and Evolution Statistical Mechanics |
| url | https://arxiv.org/abs/2507.17058 |