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Big Ten Academic Alliance Geoportal

Ecoregions United States (Bailey): North America, 2004

Author:
Description:
This map layer is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.S. Virgin Islands. Four levels of detail are included to show a hierarchy of ecosystems. The largest ecosystems are domains, which are groups of related climates and which are differentiated based on precipitation and temperature. Divisions represent the climates within domains and are differentiated based on precipitation levels and patterns as well as temperature. Divisions are subdivided into provinces, which are differentiated based on vegetation or other natural land covers. The finest level of detail is described by subregions, called sections, which are subdivisions of provinces based on terrain features. Also identified are mountainous areas that exhibit different ecological zones based on elevation.
Collection:
Pennsylvania Spatial Data Access (PASDA)
Place:
North America
Subjects:
Environment, Biota, Baileys ecoregions, Ecosystem geography, Ecosystems, Mapping, Regional ecology, and Ecoregions
Year:
2004
Contributed by:
Penn State
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