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Title: Avian use of scoria rock outcrops
Author: Rumble, Mark A.
Source: Great Basin naturalist. 47(4): 625-630
Description: Avian use of scoria outcrop habitats was compared to use of sagebrush (Artemisia spp.)/grassland habitats. Outcrop habitats exhibited higher species richness, total population density, density of lark sparrows (Chondestres grammucus), and density of rock wrens (Salpinctes obsoetus). Western meadowlarks (Sturnella neglecta) and vesper sparrows (Pooecetes grumineus) were more abundant in sagebrush/grassland habitats than in scoria outcrops. Habitat relationship models indicated that the unique plant community and structural diversity provided by the scoria outcrops were correlated with increased avian use.
Keywords: Passeriformes, wild birds, grasslands, sagebrush, habitat selection, population density, scoria soils
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Rumble, Mark A. 1987. Avian use of scoria rock outcrops. Great Basin naturalist. 47(4): 625-630
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