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Using the spatial information implicit in the habitat specificity of the burrowing crayfish Distocambarus crockeri to identify a lost landscape component

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Historical ecology can be used to model past environments and identify reference conditions for restoration efforts. The primary burrowing crayfish Distocambarus crockeri exhibits a high degree of habitat specialization and is largely limited to open canopied terrestrial habitats maintained along roadsides, utility rights-of-way, and agricultural field edges within a portion of the South Carolina piedmont, USA. Crayfish abundance, vegetation structure, and negative binomial regression were used to model the habitat of D. crockeri. Modeling indicated that within a community-defined landscape patch context, D. crockeri was a prairie specialist. Historical descriptions of areas within the species’ range indicated that prairie-like habitats (piedmont prairies) were a regular component of the landscape. The congruence between habitat models and historical data indicate that prairie habitat was a natural component of the historic piedmont landscape and that the habitat specificity of D. crockeri contained spatial information about this lost landscape component.
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Document Type: Research Article

Publication date: June 1, 2007

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