Skip to Main Content

The Center for Native Grasslands Management

Title: Effects of shrub coverage on birds on North Dakota mixed grass prairies
Year: 1986
Author(s): Arnold, T. W., Higgins, K. F.
Source Title: Canadian Field-Naturalist
Source Type: Journal
pages: 10-14
Original Publication: http://  
Abstract: We studied the distribution and density of passerine birds in relation to Wolfberry and Silverberry shrub coverages on mixed-grass prairies of central North Dakota. Birds were counted along shrubby and shrubless transects during the 1982 breeding season. Species richness and total density of birds were greater on shrubby transects. Five species were more abundant on shrubby transects. Availability of woody nesting substrates best explained differences in bird species abundances. Differences in shrub coverages between transects were probably the result of different land-use practices. Land management practices which modify shrub coverages can alter the composition of passerine bird communties.