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Expert knowledge-based species-habitat relationships are used extensively to guide conservation planning, particularly when data are scarce.  Purported relationships describe the initial state of knowledge, but are rarely tested.  We assessed support in the data for suitability rankings of vegetation types based on expert knowledge for three terrestrial avian species in the South Atlantic Coastal Plain of the United States.  Experts used published studies, natural history, survey data, and field experience to rank vegetation types as optimal, suitable, and marginal.  We used single-season occupancy models, coupled with land cover and Breeding Bird Survey data, to examine the hypothesis that patterns of occupancy conformed to species-habitat suitability rankings purported by experts.  Purported habitat suitability was validated for two of three species.  As predicted for the Eastern Wood-Pewee (Contopus virens) and Brown-headed Nuthatch (Sitta pusilla), occupancy was strongly influenced by vegetation types classified as "optimal habitat" by the species suitability rankings for nuthatches and wood-pewees.  Contrary to predictions, Red-headed Woodpecker (Melanerpes erythrocephalus) models that included vegetation types as covariates received similar support by the data as models without vegetation types.  For all three species, occupancy was also related to sampling latitude.  Our results suggest that covariates representing other habitat requirements might be necessary to model occurrence of generalist species like the woodpecker.  The modeling approach described herein provides a means to test expert knowledge-based species-habitat relationships, and hence, help guide conservation planning

Use of Occupancy Models to Evaluate Expert Knowledge-based Species-Habitat Relationships