EFFECTS OF EXURBAN DEVELOPMENT ON BIODIVERSITY: PATTERNS, MECHANISMS, AND RESEARCH NEEDS.

Autor: Hansen, Andrew J.1 hansen@montana.edu, Knight, Richard L.2, Marzluff, John M.3, Powell, Scott1, Brown, Kathryn1, Gude, Patricia H.1, Jones, Kingsford1
Předmět:
Zdroj: Ecological Applications. Dec2005, Vol. 15 Issue 6, p1893-1905. 13p.
Abstrakt: The article presents information about the effects of exurban development on biodiversity. Many retirees and entrepreneurs are fleeing the cities and seeking the small-town lifestyles of rural landscapes. The trend has led to large scale changes in the land use. As a result the land which was long used for forestry or ranching is being converted into home sites. The exurban development is manifest in two forms. Urban fringe development (UFD) is the expansion of exurban densities on the periphery of cities and include suburban dwellers seeking rural lifestyles while still having access to urban jobs and services. The second form is occurring distant from cities and focused on rural areas attractive in scenery, climate, outdoor recreation and other "natural amenities." This rural residential development (RRD) is common in the rural counties of the Rocky Mountain West, the Pacific Northwest, the upper Midwest, and the southeastern U.S. The impacts of RRD on biodiversity compared to other rural land uses are little studied. An aspect which differentiates RRD from UFD is that rural homes are more likely to be placed in landscapes that include public lands with natural habitats and wilderness condition. The suburban and exurban residential growth in the U.S. has led to an increase in vehicle miles traveled per person, escalating the potential for roadkill. The roadkill has affected the demographics and migrations of birds, snakes, invertebrates, and amphibians.
Databáze: GreenFILE