USGS - science for a changing world

Northern Prairie Wildlife Research Center

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

Waterfowl Production on the Woodworth Station
in South-central North Dakota, 1965-1981

Table 32. Percent of upland nest success among treatments in habitats by duck species,
Woodworth Study Area, 1966-81a.

Table 32. Percent of upland nest success among treatments in habitats by duck species, Woodworth Study Area, 1966-81a.
  Mallard Gadwall Northern pintail Green-winged teal Blue-winged teal Northern shoveler American wigeon Lesser scaup Total
Habitat and treatment n % n % n % n % n % n % n % n % n %
Native prairie
Burned 98 10.2 184 24.0 49 21.3 8 25.7 750 17.2 59 22.3 19 29.8 20 25.4 1,187 18.3
Grazed 18 12.8 79 25.5 22 4.0 14 16.4 330 12.3 19 3.6 2 2.6 10 9.1 494 13.0
Idle 50 17.9 98 17.1 26 21.7 19 19.1 360 10.3 26 19.8 10 13.1 7 20.0 596 12.9
Seeded cover
Burned 24 16.2 58 31.4 12 13.1 1 100.0 107 21.5 14 7.0 3 54.5 4 11.8 223 22.7
Grazed 2 3.7 1 2.4 1 100.0 0 0.0 14 4.4 1 100.0 0 0.0 2 3.4 21 9.3
Idle 201 16.8 250 18.7 115 19.0 13 5.6 507 15.5 70 17.7 25 20.5 5 3.6 1,186 16.7
Cropland
Standing crop 4 2.5 7 55.5 5 5.5 0 0.0 18 33.8 3 3.2 0 0.0 2 25.0 39 20.7
Stubble 0 0.0 0 0.0 2 1.3 0 0.0 5 2.9 0 0.0 0 0.0 0 0.0 7 2.3
Mulched stubble 1 3.7 1 2.8 0 0.0 0 0.0 3 4.7 0 0.0 0 0.0 0 0.0 5 3.7
Summer fallow 3 11.8 0 0.0 2 37.5 0 0.0 6 6.4 0 0.0 0 0.0 1 1.0 12 12.5
aPercent nest success is by the Mayfield method.

Previous Section -- Table 31.
Return to Contents
Return to List of Tables
Next Section -- Table 33.

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/wpwood/table32.htm
Page Contact Information: Webmaster
Page Last Modified: Friday, 01-Feb-2013 20:09:20 EST
Menlo Park, CA [caww54]