Effects of prescribed burns and bison (Bos bison) grazing on breeding bird abundances in tallgrass prairie
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Published source details
Powell A.F.L.A. (2006) Effects of prescribed burns and bison (Bos bison) grazing on breeding bird abundances in tallgrass prairie. The Auk, 123, 183-197.
Published source details Powell A.F.L.A. (2006) Effects of prescribed burns and bison (Bos bison) grazing on breeding bird abundances in tallgrass prairie. The Auk, 123, 183-197.
Actions
This study is summarised as evidence for the following.
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Employ grazing in natural grasslands Action Link |
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Use prescribed burning on grasslands Action Link |
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Employ grazing in natural grasslands
A replicated study using 23 years of data (up to 2003) from a tallgrass prairie in Kansas, USA (Powell 2006), found that three of seven species showed a significant response to grazing by American bison Bos bison: upland sandpipers and grasshopper sparrows were consistently more abundant on grazed sites, whilst Henslow's sparrows were almost absent. Dickcissel, eastern meadowlark, Bell's vireo Vireo bellii (a shrub-dependent species) and brown-headed cowbird Molothrus ater showed no significant response.
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Use prescribed burning on grasslands
A replicated study in tallgrass prairie in Kansas, USA (Powell 2006), found that six of seven birds surveyed showed a significant response to burning: Henslow's sparrow, grasshopper sparrow, dickcissel, eastern meadowlark (grassland species) and Bell's vireo Vireo bellii (a shrub-dependent species) were least abundant in the breeding season following a burn (with Bell's vireo being absent from sites burned annually); upland sandpipers Bartramia longicauda were most abundant in the season following a burn. Brown-headed cowbird Molothrus ater did not show any significant response.
Output references
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