Douglas Johnson (Former Employee)
Science and Products
Filter Total Items: 318
Habitat use by migrant sandhill cranes in Nebraska Habitat use by migrant sandhill cranes in Nebraska
The principal spring staging areas of the midcontinent population of sandhill cranes (Grus canadensis) are along the Platte and North Platte rivers in south-central Nebraska. Most of these lands are privately owned and managed for corn and cattle production. Diurnal habitat use by radio-tagged cranes was primarily in cropland (55%), native grassland (28%), and tame hayland (15%). Ninety...
Authors
Gary L. Krapu, D.E. Facey, E.K. Fritzell, Douglas H. Johnson
Forty-seventh breeding bird census - Kentucky blue grass prairie and Mixed prairie I-V, and VIII Forty-seventh breeding bird census - Kentucky blue grass prairie and Mixed prairie I-V, and VIII
Abstract has not been submitted
Authors
C. A. Faanes, Douglas H. Johnson
[Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas [Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas
Review of: The youngest science: notes of a medicine-watcher. Alfred P. Sloan Foundation Series. Lewis Thomas. Penguin Books, 1995. Pennsylvania State University. 270 pp. ISBN: 0140243275, 9780140243277.
Authors
Douglas H. Johnson
Effects of weather on breeding ducks in North Dakota Effects of weather on breeding ducks in North Dakota
The present report quantifies relations between weather and several aspects of the breeding biology of four duck species: mallard (Anas platyrhynchos), gadwall (A. strepera), blue-winged teal (A. discors), and redhead (Aythya americana). Data were obtained from two locations in North Dakota,--the J. Clark Salyer National Wildlife Refuge, intermittently during 1936-68, and the Northern...
Authors
M.C. Hammond, Douglas H. Johnson
Water storage capacity of natural wetland depressions in the Devils Lake basin of North Dakota Water storage capacity of natural wetland depressions in the Devils Lake basin of North Dakota
Photogrammetric mapping techniques were used to derive the water storage capacities of natural wetland depressions other than lakes in the Devils Lake Basin of North Dakota. Results from sample quarter-section areas were expanded to the entire basin. Depressions in the Devils Lake Basin have a maximum storage capacity of nearly 811,000 cubic dekameters (657,000 acre-feet). The...
Authors
A.P. Ludden, D.L. Frink, Douglas H. Johnson
[Book review] Animal population dynamics by R. Moss, A. Watson and J. Ollason [Book review] Animal population dynamics by R. Moss, A. Watson and J. Ollason
No abstract available.
Authors
Douglas H. Johnson, J.W. Grier
Science and Products
Filter Total Items: 318
Habitat use by migrant sandhill cranes in Nebraska Habitat use by migrant sandhill cranes in Nebraska
The principal spring staging areas of the midcontinent population of sandhill cranes (Grus canadensis) are along the Platte and North Platte rivers in south-central Nebraska. Most of these lands are privately owned and managed for corn and cattle production. Diurnal habitat use by radio-tagged cranes was primarily in cropland (55%), native grassland (28%), and tame hayland (15%). Ninety...
Authors
Gary L. Krapu, D.E. Facey, E.K. Fritzell, Douglas H. Johnson
Forty-seventh breeding bird census - Kentucky blue grass prairie and Mixed prairie I-V, and VIII Forty-seventh breeding bird census - Kentucky blue grass prairie and Mixed prairie I-V, and VIII
Abstract has not been submitted
Authors
C. A. Faanes, Douglas H. Johnson
[Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas [Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas
Review of: The youngest science: notes of a medicine-watcher. Alfred P. Sloan Foundation Series. Lewis Thomas. Penguin Books, 1995. Pennsylvania State University. 270 pp. ISBN: 0140243275, 9780140243277.
Authors
Douglas H. Johnson
Effects of weather on breeding ducks in North Dakota Effects of weather on breeding ducks in North Dakota
The present report quantifies relations between weather and several aspects of the breeding biology of four duck species: mallard (Anas platyrhynchos), gadwall (A. strepera), blue-winged teal (A. discors), and redhead (Aythya americana). Data were obtained from two locations in North Dakota,--the J. Clark Salyer National Wildlife Refuge, intermittently during 1936-68, and the Northern...
Authors
M.C. Hammond, Douglas H. Johnson
Water storage capacity of natural wetland depressions in the Devils Lake basin of North Dakota Water storage capacity of natural wetland depressions in the Devils Lake basin of North Dakota
Photogrammetric mapping techniques were used to derive the water storage capacities of natural wetland depressions other than lakes in the Devils Lake Basin of North Dakota. Results from sample quarter-section areas were expanded to the entire basin. Depressions in the Devils Lake Basin have a maximum storage capacity of nearly 811,000 cubic dekameters (657,000 acre-feet). The...
Authors
A.P. Ludden, D.L. Frink, Douglas H. Johnson
[Book review] Animal population dynamics by R. Moss, A. Watson and J. Ollason [Book review] Animal population dynamics by R. Moss, A. Watson and J. Ollason
No abstract available.
Authors
Douglas H. Johnson, J.W. Grier