The Challenge of Fragmentation
The vast grasslands of the Great Plains have been profoundly fragmented by roads, fences, cropland, and urban development, creating isolated islands of habitat that threaten the long-term survival of wide-ranging species. The Nebraska Institute of Great Plains' Wildlife Connectivity Initiative is dedicated to reversing this fragmentation. The work is inherently large-scale and collaborative, focusing on identifying, protecting, and restoring ecological corridors that allow animals to move, find mates, access seasonal resources, and adapt to climate change. This is conservation at the landscape level, thinking beyond individual parcels to the functional connectivity of the entire region.
Flagship Species and Umbrella Benefits
Research often focuses on "umbrella" or "keystone" species whose needs encapsulate those of many others. The American pronghorn, a grassland specialist requiring large, open spaces, is a primary study subject. Using GPS collar data, researchers map their migratory routes, identifying critical bottlenecks like highways or fenced subdivisions where movement is blocked. Similarly, studies on lesser prairie-chickens and grassland birds help define the habitat requirements for a suite of declining avian species. Protecting corridors for these species benefits countless insects, plants, and small mammals that share the same landscape.
Science of Corridor Design
Designing effective corridors is a complex science. Researchers use circuit theory and least-cost path modeling to predict wildlife movement across landscapes, weighting different land uses (e.g., native prairie = low resistance, interstate highway = high resistance). They conduct genetic studies to assess the current level of population connectivity and inbreeding. Field biologists monitor existing wildlife crossing structures (like highway underpasses) to evaluate their effectiveness and inform the design of new ones. This science provides the evidence base for where conservation action will have the greatest impact.
The Human Dimension: Working with Landowners
The vast majority of potential corridor land is privately owned. Therefore, the social and economic dimension is as important as the ecological. The Initiative has a dedicated team that builds relationships with ranchers and farmers, understanding their operational needs and co-developing solutions. This might involve designing wildlife-friendly fencing (with a smooth bottom wire for pronghorn to crawl under), establishing conservation easements that pay landowners for maintaining habitat, or creating programs that recognize ranchers as stewards of working landscapes that also support wildlife. The goal is to make conservation compatible with, and even beneficial to, agricultural livelihoods.
Policy Advocacy and Multi-State Collaboration
Because wildlife do not recognize political boundaries, the Institute actively facilitates collaboration between state wildlife agencies, federal land managers (like the US Forest Service and BLM), and non-governmental organizations across multiple states. They convene working groups to align management plans and pool resources. A major policy focus is advocating for the inclusion of wildlife connectivity in state transportation plans and federal infrastructure legislation, ensuring that new roads and highway upgrades include crossing structures from the outset.
The work of the Wildlife Connectivity Initiative embodies a forward-looking vision of conservation. It is not just about saving species in isolated reserves, but about rewilding the working landscape, creating a network of life that flows across the plains. By combining rigorous science with respectful partnership and bold policy advocacy, the Nebraska Institute of Great Plains is helping to ensure that the iconic wildlife of the region—from bison to butterflies—has a connected and resilient future.