Blandings Turtle Habitat Requirements |
ABSTRACT: Blandings turtle, Emydoidea blandingii, listed as Threatened in New York State, occurs in Dutchess County and one other region of the state. In Dutchess, at least 11 small populations (each 1050+ adults) use complexes of several wetland units (0.037 ha). Primary wetland habitats usually include the following characteristics: permanent or intermittent hydroperiod with little through flow; high water depths of 25120 cm; tree canopy open or absent; tree fringe present; and a dense cover of shrubs, forbs, lemnids or nymphaeids, with coarse and fine organic debris. A deeper permanent or spring-fed pond (used for drought refuge) and adjoining well-drained, gravelly soils are also believed to be important habitat components. Adults readily move 100500+ m between pools, and females migrate up to 1,000 m overland to nest. There is evidence that existing small preserves are not large enough to contain nesting areas. Loss of habitat and loss of individuals to road and mowing-equipment mortality, to collecting, and to predation are believed to be significant threats. |
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