USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

The Conservation Reserve Program:
Habitat for Grassland Birds

Douglas H. Johnson & Michael D. Schwartz


Abstract: The Conservation Reserve Program (CRP) has effected major changes to the landscape, especially in the northern Great Plains. Breeding birds have responded dramatically to habitat changes by colonizing CRP fields, often in large numbers. The vegetation in most CRP fields consists of introduced grasses and legumes, along with a variety of weedy species. This paper describes the bird populations found during three years of surveys on more than 300 CRP fields in western Minnesota, North Dakota, South Dakota, and eastern Montana. We relate densities of selected species to geographic location, annual effects, conservation practice adopted, and vegetation features.
This resource is based on the following source (Northern Prairie Publication 0878):
Johnson, Douglas H., and Michael D. Schwartz.  1993.  The Conservation Reserve 
     Program: habitat for grassland birds.  Great Plains Research 3(2):273-295.

This resource should be cited as:

Johnson, Douglas H., and Michael D. Schwartz.  1993.  The Conservation Reserve 
     Program: habitat for grassland birds.  Great Plains Research 3(2):273-295.
     Jamestown, ND: Northern Prairie Wildlife Research Center Online.  
     http://www.npwrc.usgs.gov/resource/birds/crphab/index.htm  
     (Version 31JAN2002).

Table of Contents

Tables and Figures


Douglas H. Johnson and Michael D. Schwartz, U.S. Fish and Wildlife Service, Northern Prairie Wildlife Research Center, Jamestown, ND 58401
Downloading Instructions -- Instructions on downloading and extracting files from this site.
(Download) crphab.zip ( 64K) -- The Conservation Reserve Program: Habitat for Grassland Birds
Installation: Extract all files and open index.htm in a web browser.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/crphab/index.htm
Page Contact Information: Webmaster
Page Last Modified: Friday, 01-Feb-2013 19:07:42 EST
Menlo Park, CA [caww55]