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Salt Plains

Ecoregion on Great Plains, OK

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The Salt Plains ecoregion is composed of salt flats, scattered hummocky mounds, islands, and lakes. High surface and subsurface salinity, extensive barren areas, and halophytic vegetation differentiate it from other ecoregions. Plant life is poor, both in number of species and number of plants; seapurslane, western seepweed, and an algae species are the only plants on the salt plains proper, whereas little bluestem occurs on isolated mounds. Animal life on the salt plains is limited to a few species of insects, birds, and fish. Amphibians and reptiles are restricted to grass-covered islands and mounds. Ecoregion 27p includes the Salt Plains National Wildlife Refuge, and provides nesting and foraging habitat for shorebirds including the least tern, federally listed as an endangered species.

— EPA

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Ecoregion