Why Trees?

Trees have a powerful impact on air quality, climate change, energy conservation, water quality, economy, comfort, habitat, and public health.


Trees provide food and shelter for our critter neighbors.

An important aspect of preserving biological diversity in our changing landscape is accomplished by protecting and replacing trees in urban and disturbed areas. The many species of birds, reptiles, amphibians and small mammals that live in or migrate through our human communities depend upon trees for food, shelter, cover, and nesting habitat. By planting and protecting trees of all ages and types in our neighborhoods and yards, we increase our chances of attracting an array of wildlife to view and enjoy.

Native trees, such as the California black walnut, valley oak, blue oak and live oak, are particularly important as they produce a generous food supply for the wildlife species that call the Sacramento region home and depend on these trees for their survival throughout the year. Trees also provide habitat for insects, which comprise an important part of the food chain and act as essential pollinators and decomposers in our ecosystem.

In addition to backyards, parks, and streetscapes, woodlands in open spaces and inaccessible areas—such as railroad easements and alleys—are important migration and dispersal corridors. They also provide increased opportunities to find food and water. Without these open space areas, many wildlife populations would be isolated from one another by freeways and other development.