Using transient encounter rates to quantify spatial patterns of home-range organization
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915555559079936 |
|---|---|
| author | Surendran, Anudeep Calabrese, Justin M. Fagan, William F. Martinez-Garcia, Ricardo |
| author_facet | Surendran, Anudeep Calabrese, Justin M. Fagan, William F. Martinez-Garcia, Ricardo |
| contents | Encounters between individuals underlie key ecological processes such as predation, mating, and disease transmission, making encounter rates a direct link between individual movement behavior and population-level outcomes. We investigate how two common features of animal movement--directional persistence and range residency--jointly shape encounter rates. Using the Ornstein-Uhlenbeck with foraging (OUF) model, which integrates these two properties of animal movement, we derive exact analytical expressions for encounter rates and show that, for range-resident animals, the effect of persistence depends strongly on the degree of home-range overlap. Based on this theoretical result, we then introduce a new encounter-based metric that quantifies the spatial organization of home ranges at scales relevant to animal encounters. We finally apply this metric to movement data from lowland tapirs ($\textit{Tapirus terrestris}$) in Brazil's Pantanal region and find a significant level of home-range spatial segregation, consistent with the solitary behavior of this species. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_13017 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Using transient encounter rates to quantify spatial patterns of home-range organization Surendran, Anudeep Calabrese, Justin M. Fagan, William F. Martinez-Garcia, Ricardo Populations and Evolution Encounters between individuals underlie key ecological processes such as predation, mating, and disease transmission, making encounter rates a direct link between individual movement behavior and population-level outcomes. We investigate how two common features of animal movement--directional persistence and range residency--jointly shape encounter rates. Using the Ornstein-Uhlenbeck with foraging (OUF) model, which integrates these two properties of animal movement, we derive exact analytical expressions for encounter rates and show that, for range-resident animals, the effect of persistence depends strongly on the degree of home-range overlap. Based on this theoretical result, we then introduce a new encounter-based metric that quantifies the spatial organization of home ranges at scales relevant to animal encounters. We finally apply this metric to movement data from lowland tapirs ($\textit{Tapirus terrestris}$) in Brazil's Pantanal region and find a significant level of home-range spatial segregation, consistent with the solitary behavior of this species. |
| title | Using transient encounter rates to quantify spatial patterns of home-range organization |
| topic | Populations and Evolution |
| url | https://arxiv.org/abs/2510.13017 |