Backyard Wildlife Habitat place for raising young to beneficial insects or animals. Over time the Federation has introduced variants or expansions of the program for schoolyards and for communities. In order for a backyard to be certified as a Backyard Wildlife Habitat by the National Wildlife Federation, the space must do all of the following: provide food, water, cover, a place to raise young, and be maintained in a way that has a positive effect o n the health of the soil, air, water, and habitat for native wildlife. More specifically, the presence of native forbs, shrubs, and trees is necessary to provide
Habitat fragmentation interior habitat. Another mitigation measure is the enlargement of small remnants in order to increase the amount of interior habitat. This may be impractical since developed land is often more expensive and could require significant time and effort to restore. The best solution is generally dependent on the particular species or ecosystem that is being considered. More mobile species, like most birds, do not need connected habitat while some smaller animals, like rodents, may be more exposed to predation in open land. These questions generally fall under the headings of metapopulations island biogeography. As the remaining habitat patches are smaller,