Tag Archive for: climate change

A Science-based approach to wilderness protection

June 5, 2023- You’ve likely heard us refer to climate resilience in relation to our work protecting lands in and around wilderness areas from development. Generally speaking, climate resilience is the ability to anticipate and respond to events, trends, and disturbances related to the changing climate. Climate resilience is something that can be built: we can make our communities and cities more resilient through planning to anticipate effects on our drinking water supplies, floodplains, or wildfire protection. We can also help make our natural landscapes more resilient through thoughtful management and habitat restoration. But some landscapes are also inherently more resilient on their own. Resilient landscapes tend to have high microclimatic diversity— or variation in factors like temperature, precipitation, humidity, or wind speed across the landscape— and low levels of human modification. Together these conditions provide the connected and diverse habitats that flora and fauna will need to adapt to a changing climate. 

Wilderness areas tend to rank high in both of these conditions— they are large enough to encompass diverse habitats from cool north-facing gullies to lush alpine meadows to dry sagebrush scrub, and as the highest level of protection for public lands in the US, they have little modification by humans. But understanding how climate resilience varies across wilderness landscapes is also becoming increasingly important for the Trust as we prioritize which areas and properties to protect.

The scientific community, aided by developing technologies like satellite remote sensing, has steadily been building databases of different measures of climate resilience, biodiversity, habitat connectivity, wildlife migration paths, and more. Many of these are now publicly available through tools like The Climate Atlas and The Nature Conservancy’s Resilient Land Mapping. If you’re interested in these issues, or just love maps, these tools are fun to explore and are excellent ways to learn more about your local area or wild places you love.

 

This analysis of the Silver Creek drainage in Washington’s Wild Sky Wilderness, where the Trust has completed a number of projects, shows it scores above average in resilience, connectivity, and landscape diversity. (Analysis from Resilient Lands Mapping Tool)

 

Using The Climate Atlas, we can not only see how the Bodie Hills in the eastern Sierra of California (where the Trust has also completed several projects) have high climate resilience, but also how they fit into a larger resilient ecoregion. (Mapping from The Climate Atlas).

This kind of data, along with boots-on-the-ground site visits by our staff, and partnerships with local agencies and organizations, allow us to dive deep into potential projects and understand all the conservation values at stake in their protection. Climate resilience is just one of the criteria that we evaluate potential projects on, but when we talk about protecting our wild places for future generations, it is an increasingly important one. Through a science-based approach we are able to able to ensure that your donations are being leveraged to have the greatest impact.

How protecting wilderness is key for the biodiversity loss crisis

January 13, 2023-

We are in the midst of a global biodiversity loss crisis. Species are going extinct at a rate of 1000x faster than without human influence. Globally, wildlife populations have dropped an average of 69% between 1970 and 2018. But research has shown that protecting habitat is one of the key solutions for slowing this loss. In fact, the higher the level of protection of an area, the better job it does at conserving biodiversity.

Almost 60 years ago The Wilderness Act set forward the strongest set of protections for our public lands with a vision of maintaining our wildest places for future generations. It envisioned “an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain.” When ranking different kinds of protected areas around the world, the International Union for the Conservation of Nature classifies designated wilderness in the United States as a Category 1 protected area, meaning it has the highest degree of protection.

That means that protecting wilderness areas is key to combating biodiversity loss in the U.S. Wilderness areas are some of the only protected areas large enough to allow natural ecosystem processes like cycles of fire to operate in a natural state, and to allow wide ranging carnivores like grizzly bears, lynx, and wolverines the room they need to roam.

At The Wilderness Land Trust, this is one of the factors driving our work and determining where we focus our efforts to acquire and transfer private wilderness inholdings to public ownership. By removing these gaps in protection across the landscape, we can protect key habitat areas, give wildlife clear corridors to migrate and adapt to a changing climate, combat climate change by maintaining ecosystems such as forests that sequester carbon, and expand protection in biodiversity hot spots with high species richness and rare species.

When we report our recent acquisitions and transfers to you, you’ll often see properties ranging from 20 to 200 acres protected. In the scale of the 111 million-acre federal wilderness system, these small parcels may seem inconsequential. But the benefits of their protection stretch far beyond their borders. Their protection can mean the difference between a fence line blocking an annual migration route from summer to winter habitat or a septic tank leaching into one of the last spawning grounds for native trout or salmon. No matter their size, protecting them is key to conserving our remaining biodiversity.