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1 May 2001 A HALF-CENTURY COMPARISON OF BREEDING BIRDS IN THE SOUTHERN APPALACHIANS
J. Christopher Haney, David S. Lee, Mark Wilbert
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Abstract

We evaluated long-term (∼50-year) change in a bird community of an extensively forested region of the southern Appalachian mountains in North Carolina and Tennessee. A species accumulation curve for a 1996–1998 survey identified a core of 50 breeding species in upper elevations of the Unicoi Mountains. Since a 1944–1946 survey, dominant species have remained identical, no species have disappeared, and mean ranked abundance of both short and long-distance migrants has not changed. Permanent residents, however, had decreased in rank by the late 1990s. Three “new” disturbance-dependent species, American Crow (Corvus brachyrhynchos), Indigo Bunting (Passerina cyanea), and Song Sparrow (Melospiza melodia), expanded into interior forest along a recently constructed parkway. Largest apparent increases in ranked abundance of individual species occurred in eight Neotropical migrants that rely upon mature, forest-interior habitat, whereas largest apparent declines in ranked abundance occurred in land-use generalists, cavity nesters, and three other Neotropical migrants. Modifications to land-use were reasonable explanations for changes in most species. Little change in community structure, greater representation of many Neotropical migrants, and virtual absence of Brown-headed Cowbirds (Molothrus ater) suggest that this large, continuous forest retained and probably regained functional integrity for forest birds during the latter half of the twentieth century.

J. Christopher Haney, David S. Lee, and Mark Wilbert "A HALF-CENTURY COMPARISON OF BREEDING BIRDS IN THE SOUTHERN APPALACHIANS," The Condor 103(2), 268-277, (1 May 2001). https://doi.org/10.1650/0010-5422(2001)103[0268:AHCCOB]2.0.CO;2
Received: 4 June 2000; Accepted: 1 November 2000; Published: 1 May 2001
KEYWORDS
avifaunal structure
forest birds
long-term comparisons
ranked abundances
southern Appalachians
Unicoi Mountains
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