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pro vyhledávání: '"Douglas L. Gilbert"'
Autor:
Douglas L. Gilbert
Publikováno v:
Fisheries. 2:24-25
Education in natural resources is changing toward a specialist graduating in a specific major with general natural resource knowledge in other areas. Graduates also are required to have knowledge in sophisticated methodology. Courses in sociology, ec
Autor:
Douglas L. Gilbert, James R. Fazio
Publikováno v:
The Journal of Environmental Education. 3:14-15
Autor:
Douglas L. Gilbert
Publikováno v:
The Journal of Wildlife Management. 20:456
The need for conservation education in the broad sense has recently become increasingly important in securing better use of our natural resources. Wildlife education, as related primarily to conservation, has also been increasing in importance due to
Autor:
A. G. Randall, Douglas L. Gilbert
Publikováno v:
Journal of Range Management. 18:155
Autor:
Paul F. Gilbert, Douglas L. Gilbert
Publikováno v:
The Southwestern Naturalist. 15:264
Publikováno v:
The Journal of Wildlife Management. 34:446
The ecology of bighorn sheep (Ovis canadensis) was studied in Yellowstone National Park, Wyoming, during the summers of 1966 and 1967. Ewe groups often included rams up to 2 years old, but rams older than 2 years remained in their own groups. With fe
Autor:
Jack P. Hailman, Douglas L. Gilbert
Publikováno v:
Bird-Banding. 43:77
Publikováno v:
The Journal of Wildlife Management. 35:257
Bighorn sheep (Ovis c. canadensis) were intensively studied on the northern Yellowstone winter range during the winter of 1965-66, with additional data gathered the following two winters. Censuses showed a stable or slowly increasing population of ab
Autor:
Richard W. Jones, Douglas L. Gilbert
Publikováno v:
The Journal of Wildlife Management. 30:243