Details

Autor(en) / Beteiligte

• Bartlett, J. G.
• Mageean, D. M.
• O'Connor, R. J.

Titel

Residential Expansion as a Continental Threat to U.S. Coastal Ecosystems

Ist Teil von

• Population and environment, 2000-05, Vol.21 (5), p.429-468

Ort / Verlag

New York: Human Sciences Press

Erscheinungsjahr

2000

Quelle

PAIS Index

Beschreibungen/Notizen

• Spatially extensive analysis of satellite, climate, and census data reveals human-environment interactions of regional or continental concern in the United States. A grid-based principal components analysis of Bureau of Census variables revealed two independent demographic phenomena, α-settlement reflecting traditional human settlement patterns and β-settlement describing relative population growth correlated with recent construction in non-agricultural areas, notably in coastal, desert, and "recreational" counties and around expanding metropolitan areas. Regression tree analysis showed that β-settlement was differentially associated with five distinct combinations of seasonality, summer heat or cool, intensity of agriculture, and extent of "barren" land. Beta-settlement was greatest in coastal and desert areas, and coincided with national concentrations of threatened and endangered species.