Former Wildlife Linkages Program Manager
Over the past several decades, POST and our partners have made great progress in protecting large areas of core habitat – places where we can experience a sense of wonder and awe, knowing that we share these lands with a remarkable cast of wildlife. More recently, we have added a focus on connecting those areas in order to best support wildlife and the ecosystems they are part of.
As important as it is to protect and connect open space, we also need to make sure that habitats are healthy and robust, and that the landscape is permeable so that wildlife can move safely past infrastructure like roads and railways.
This is why much of our work today is focused on protecting and improving landscape linkages – broad areas of land that support the movement of plants and animals. We often use the term landscape linkage, rather than wildlife corridor, when our focus is on connecting habitats that suit the needs of a full suite of native animals and plants, both now and into the future.
Click on the points below to learn more about the fundamental characteristics that make for a healthy and functional landscape linkage in the Bay Area:
Wildlife needs room to roam. Bobcats, for example, prefer moving under vegetative cover as they prowl in search of food.
The needs of an individual can change throughout their life. For example, California tiger salamander are born in wetlands but spend their adult lives in upland habitats.
Migration happens at a variety of spatial and temporal scales. Species that migrate long-distances, like birds on the Pacific Flyway, need access to habitat to rest, refuel and, in some cases, breed.
Diversity in terrain, soils, and vegetation provides a range of living conditions, allowing plants and animals to find a comfortable spot as the climate changes and habitats shift.
All life needs access to water. In our region, creek corridors are one of the most important features for the movement of wildlife.
Pumas are an animal that travel long distances and need a good amount of vegetative cover in order to be comfortable moving through the landscape.
Our area has amazing floristic diversity. An optimal linkage will host a variety of plants, in turn serving different species and vice versa, regardless of whether they have general or specialized needs.
The linkage needs to be wide enough to buffer the interior from adjacent land uses that could disturb sensitive species.
Larger and more intact habitat areas typically support an abundance and diversity of life. The role of the linkage is to connect these areas so that species can exchange genes and find the resources they need.
Transportation systems can act as a barrier to wildlife movement, posing a risk to wildlife and motorists alike. There are a variety of options for wildlife-passage infrastructure that can alleviate conflicts between wildlife and vehicles.
Practices such as planting hedgerows, water-wise irrigation, crop rotation, avoiding rodenticide and preserving riparian vegetation are examples of “wildlife-friendly agriculture.”
The underlying goal of this work is resilience. By creating healthy landscape linkages, we’re supporting the plants and animals in our open spaces and helping ecosystems to be resilient to changes in the environment.
The abundance and availability of habitats, food and water will change in the coming decades, and plants and animals need access to the resources they require to adapt, migrate, reproduce and thrive. The more we can do to support healthy ecosystems, the more resilient these species will be to change.
If you are interested in greater detail, the Coyote Valley Landscape Linkage report offers an in-depth, place-based example of how these principles relate to our long-term vision for Coyote Valley.
Peninsula Open Space Trust (POST) protects open space on the Peninsula and in the South Bay for the benefit of all. Since its founding in 1977, POST has been responsible for saving more than 87,000 acres as permanently protected land in San Mateo, Santa Clara and Santa Cruz counties. Learn more