Nearctic
For the thoroughbred racehorse see Nearctic (horse).
The Nearctic is one of the eight terrestrial ecozones dividing the Earth's land surface.
In ecology, an ecozone is a large land mass that contains many terrestrial ecoregions, each of which has unique plants and animals.
The Nearctic ecozone covers most of North America, including Greenland and the highlands of Mexico.
Southern Mexico, southern Florida, Central America, and the Caribbean islands are part of the Neotropic ecozone, together with South America.
The World Wide Fund for Nature (WWF) divides the Nearctic into four Bioregions, defined as "geographic clusters of ecoregions that may span several habitat types, but have strong biogeographic affinities, particularly at taxonomic levels higher than the species level (genus, family)."
Nearctic Media
The Nearctic realm (in green)
Ecoregions of the Nearctic realm, color-coded by ecoregion. Note that much of the coast, south, and southwest Mexico and the southern half of Florida in the United states are considered part of the Neotropic realm.
Other websites
References
- Flannery, Tim 2001. The eternal frontier: an ecological history of North America and its peoples. Grove Press, New York.
- Ricketts, Taylor H., Eric Dinerstein, David M. Olson, Colby J. Loucks et al. 1999. Terrestrial ecoregions of North America: a conservation assessment. Island Press, Washington DC.