Effects of Prescribed Fire on Vegetation and Passerine Birds in Northern Mixed-Grass Prairie

摘要: Abstract Prescribed fire is used widely to manage grasslands on National Wildlife Refuges and other public lands in the northern Great Plains, but its effects habitat use or production of wildlife region are poorly understood. During 1998–2003, we point counts examine prescribed vegetation passerines a mixed-grass prairie complex north-central North Dakota, USA (n  =  7 units, each 40–70 ha). Vegetation structure and, lesser extent, plant community composition varied with year study (likely related changes annual precipitation) number growing seasons since fire. Fire altered structure, especially amount residual vegetation, which turn influenced bird species richness abundance. The indicated pairs for sedge wren (Cistothorus platensis), clay-colored sparrow (Spizella pallida), Le Conte's (Ammodramus leconteii), Savannah (Passerculus sandwichensis), bobolink (Dolichonyx oryzivorus) wer...