ArticleEcological applications : a publication of the Ecological Society of America2021
Mapping potential effects of proposed roads on migratory connectivity for a highly mobile herbivore using circuit theory.
Article in Ecological applications : a publication of the Ecological Society of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Predicting Road Encounter Hotspots for Infrequently Detected Species Using Opportunistic Data: A Case Study With Blanding's Turtle (Ecology and evolution · 2026Article
- Behavioral responses of migratory caribou to semi-permeable roads in Arctic Alaska.Scientific reports · 2025Article
- Assessing the connectivity value of roadway structures for terrestrial mammals across the Northern Appalachian forest of Vermont.PloS one · 2025Article
- Effect of fencing on regional ecological networks in the northern Tibetan Plateau.Frontiers in plant science · 2023Article
- Towns and trails drive carnivore movement behaviour, resource selection, and connectivity.Movement ecology · 2022Article
- Mapping potential effects of proposed roads on migratory connectivity for a highly mobile herbivore using circuit theory.Ecological applications : a publication of the Ecological Society of America · 2021Article
- Variation in winter site fidelity within and among individuals influences movement behavior in a partially migratory ungulate.PloS one · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Migration is common worldwide as species access spatiotemporally varying resources and avoid predators and parasites. However, long-distance migrations are increasingly imperiled due to development and habitat fragmentation. Improved understanding of migratory behavior has implications for conservation and management of migratory species, allowing identification and protection of seasonal ranges and migration corridors. We present a technique that applies circuit theory to predict future effects of development by analyzing season-specific resistance to movement from anthropogenic and natural environmental features across an entire migratory path. We demonstrate the utility of our approach by examining potential effects of a proposed road system on barren ground caribou (Rangifer tarandus granti) and subsistence hunters in northern Alaska. Resource selection functions revealed migratory selection by caribou. We tested five scenarios relating habitat selection to landscape resistance using Circuitscape and GPS telemetry data. To examine the effect of potential roads on connectivity of migrating animals and human hunters, we compared current flow values near communities in the presence of proposed roads. Caribou avoided dense vegetation, rugged terrain, major rivers, and existing roads in both spring and fall. A negative linear relationship between resource selection and landscape resistance was strongly supported for fall migration while spring migration featured a negative logarithmic relationship. Overall patterns of caribou connectivity remained similar in the presence of proposed roads, though reduced current flow was predicted for communities near the center of current migration areas. Such data can inform decisions to allow or disallow projects or to select among alternative development proposals and mitigation measures, though consideration of cumulative effects of development is needed. Our approach is flexible and can easily be adapted to other species, locations and development scenarios to expand understanding of movement behavior and to evaluate proposed developments. Such information is vital to inform policy decisions that balance new development, resource user needs, and preservation of ecosystem function.
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