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The Center for Native Grasslands Management

Title: Summer avian abundance, invertebrate biomass, and forbs in Kansas CRP
Year: 1996
Author(s): Hull, S. D., Robel, R. J., Kemp, K. E.
Source Title: Prairie Naturalist
Source Type: Journal
pages: 1-12
Original Publication: http://  
Abstract: Conservation Reserve Program (CRP) fields planted to native grasses have the potential to provide summer habitaat for grassland bird populations in the Great Plains. Forbs in native grasslands are thought to increase the suitability of grasslands for birds. We measured invertebrate biomass (summer food for birds) and avian abundance in Kansas CRP fields planted to native grasses to determine if they were correlated with forb abundance in those fields. Sweep nets were used to collect invertebrate abundance and avian abundance was estimated along line-transects in six CRP fields from May through August 1992. Correlation analysis did not detect a statistically significant relationship between forb abundance and invertebrate biomass or avian abundance, or between avian abundance and invertebrate biomass. Avian species richness did not vary with forb abundance and the avian community assemblages on CRP were low and high forb abundance was similar.