Travel corridors from uplands to existing water supplies such as ponds and streams on or adjacent to the site will allow access by many species. An animal's need for space is the size of area that contains sufficient amounts of food, cover, and water for it to survive. Most species cannot satisfy their space requirements on a single construction site. By arranging remaining natural areas on each site so that they are adjacent to one another, larger intact quality habitats can be retained. These reduce the overall impacts of site construction better than if several smaller areas were retained.
Many species also have vertical space requirements.
Some, such as the American crow, nest high in tall trees but feed on the ground. Others, like the Hooded warbler, nest close to the ground but feed in understory trees. Economic Justification Public opinion surveys have indicated that an overwhelming majority of property owners in Florida want to view and interact with nature, and even to attract wildlife to their property. Managing construction sites so that the final product will be most appealing to such a large property owner market is economically justified. Property owners and developers often use the wildlife diversity of a site or development as a marketing tool.