Bird species (N = 41) detected in 15 prairie and 15 switchgrass patches in southern Michigan.
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*Obligate grassland species, Michigan species of conservation concern1, Audubon Watchlist species2[18]. Species totals in parentheses represent obligate grassland species richness totals for prairie (n = 8) and switchgrass (n = 7).
创建时间：
2011-03-03
