Semester

Fall

Date of Graduation

2001

Document Type

Thesis

Degree Type

MS

College

Davis College of Agriculture, Natural Resources and Design

Department

Wildlife and Fisheries Resources

Committee Chair

Petra Bohall Wood.

Abstract

Raptor abundance and diversity were compared between 4 treatments (grassland, shrub/pole, fragmented forest, and intact forest) over 3 seasons (migration, summer, and winter) on 3 mountaintop/valley fill mines in southern West Virginia. Habitat characteristics of Red-shouldered Hawks (Buteo lineatus) were examined at landscape and microhabitat scales. Forty-eight points were surveyed monthly (Feb. 2000--Jan. 2001) using broadcast calls. I quantified microhabitat characteristics within an 11.3 m radius plot and landscape characteristics within 1000 and 564 m buffer zones at each point. Abundance was highest in grasslands; richness did not differ among treatments. Overall, I detected a shift from a forest to a grassland raptor community. Red-shouldered Hawks were the most common woodland raptor species, occurring almost exclusively in the 2 forest treatments, particularly in the intact forest. Amount of wetland in the landscape was the key characteristic determining presence of Red-shouldered Hawks. Woody debris was positively related to their abundance.

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