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Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
A Prairie Dog Abatement Program In San Juan County, Utah, Terry A. Messmer, Jim Keyes, Roy Mcdonald
A Prairie Dog Abatement Program In San Juan County, Utah, Terry A. Messmer, Jim Keyes, Roy Mcdonald
All U.S. Government Documents (Utah Regional Depository)
Four species of prairie dogs are native to the plains and plateaus of the western United States. The most abundant and widely distributed of these is the blacktailed prairie dog, (Cynomys ludovicianus). This species has been a frequent topic of discussion at previous Great Plains Wildlife Damage Control workshops. Black-tailed prairie dog ecology and management was the topic of a panel discussion held at the Fifth Great Plains Wildlife Damage Control Workshop, in Lincoln, Nebraska (Timm and Johnson 1982) and the theme topic at the Eighth Great Plains Wildlife Damage Control Workshop in Rapid City, South Dakota (Uresk et al. …
Final Oil And Gas Leasing Environmental Impact Statement [Microform] : Grand Mesa, Uncompahgre And Gunnison National Forests V1, United States Forest Service
Final Oil And Gas Leasing Environmental Impact Statement [Microform] : Grand Mesa, Uncompahgre And Gunnison National Forests V1, United States Forest Service
Environmental Assessments (NV)
No abstract provided.
Tournament-Style Debate As A Natural Resources Education Technique, Matthew S. Carroll, F. J. Alt, A. M. Brandenburg, W. Schlosser, Steven E. Daniels
Tournament-Style Debate As A Natural Resources Education Technique, Matthew S. Carroll, F. J. Alt, A. M. Brandenburg, W. Schlosser, Steven E. Daniels
Sociology, Social Work and Anthropology Faculty Publications
Curricula in the natural resource professions are placing increased emphasis on course work dealing with the larger philosophical and value-related questions surrounding resource management. This development presents a challenge to instructors, particularly in terms of encouraging active student involvement in such courses. The use of tournament debate format provides one useful means for fostering such involvement while also aiding in the development of oral communication skills. The authors' experience with the use of debate suggests that certain modifications to traditional debate format aid in its successful classroom use.
Final Oil And Gas Leasing Environmental Impact Statement [Microform] : Grand Mesa, Uncompahgre And Gunnison National Forests V2, United States Forest Service
Final Oil And Gas Leasing Environmental Impact Statement [Microform] : Grand Mesa, Uncompahgre And Gunnison National Forests V2, United States Forest Service
Environmental Assessments (NV)
No abstract provided.
Important Pests Of Ornamental Aspen, Fred A. Baker, Karen Shotwell, Diane Alston, Sherman Thomson
Important Pests Of Ornamental Aspen, Fred A. Baker, Karen Shotwell, Diane Alston, Sherman Thomson
Aspen Bibliography
No abstract provided.
Predicting Quaking Aspen Stand Dynamics In Minnesota, R.A. Leary, G.J. Brand, D.A. Perala
Predicting Quaking Aspen Stand Dynamics In Minnesota, R.A. Leary, G.J. Brand, D.A. Perala
Aspen Bibliography
This paper presents equations for predicting future basal area, number of trees, and total cubic-foot volume of aspen stands in Minnesota. The modeling methodology uses a fully-stocked yield table for quaking aspen as a density standard. A relative density change equation based on observed growth from permanent plots provides the basis for predicting the future relative density and therefore the future basal area, number of trees, and volume. The equations are easy to apply and require only site index, age, and beginning basal area, number of trees, and volume. North. J. Appl. For. 10(1):20-27.
Browse And Herbage Yield Following Clearing In The Alberta Montane Aspen Ecoregion, Edmund S. Telfer
Browse And Herbage Yield Following Clearing In The Alberta Montane Aspen Ecoregion, Edmund S. Telfer
Aspen Bibliography
Small openings were cleared by bulldozing in montane aspen Populus tremuloides forest in southwestern Alberta in 1976. Production of browse, forbs and grasses was measured at the end of the growing season 2 and 7 years later. In the 2nd year production of woody twigs was significantly higher than on uncut controls (87.0 kg/ha compared to 56.0 kg/ha). In the 7th year twig production on cut blocks still exceeded that on the control blocks (53.9 kg/ha compared to 35.5 g/ha). Leaf production was also significantly higher on the treated blocks during both years. Forb production and species composition was not …
Adaptive Cluster Sampling For Forest Inventories, F.A. Roesch, Jr.
Adaptive Cluster Sampling For Forest Inventories, F.A. Roesch, Jr.
Aspen Bibliography
No abstract provided.
Volume And Value Growth Of Hardwood Trees In Wisconsin, J. Buongiorno, J.S. Hseu
Volume And Value Growth Of Hardwood Trees In Wisconsin, J. Buongiorno, J.S. Hseu
Aspen Bibliography
The volume of healthy trees of commercial size in the maple-birch forest type measured during the last two Forest Inventory Analysis surveys of Wisconsin grew at 2 to 3%/yr for sawtimber, and 3 to 4% for pole timber, with substantial differences among species. However, from 1967 to 1989, the real price of logs decreased or remained constant for most grades and species. The decrease was especially large for high grade logs. The only exceptions were red oak and elm, whose prices increased at i to 2 %/yr, for all grades. As a result, the average value growth rate of the …
Carbon Allocation In Aspen Clones Varying In Ozone Sensitivity, M.D. Coleman, R.E. Dickson, J.G. Isebrands, D.F. Karnosky
Carbon Allocation In Aspen Clones Varying In Ozone Sensitivity, M.D. Coleman, R.E. Dickson, J.G. Isebrands, D.F. Karnosky
Aspen Bibliography
No abstract provided.
The Effect Of Harvesting Activities On Soil Compaction, Root Damage, And Suckering In Colorado Aspen, Wayne D. Shepperd
The Effect Of Harvesting Activities On Soil Compaction, Root Damage, And Suckering In Colorado Aspen, Wayne D. Shepperd
Aspen Bibliography
No abstract provided.
Moose (Alces Alces L.) Browsing In Young Scots Pine Stands In Relation To The Characteristics Of Their Winter Habitats, Risto Heikkila, Sauli Harkonen
Moose (Alces Alces L.) Browsing In Young Scots Pine Stands In Relation To The Characteristics Of Their Winter Habitats, Risto Heikkila, Sauli Harkonen
Aspen Bibliography
Moose (Alces alces L.) browsing was studied in young Scots pine (Pinus sylvestris L.) stands mixed with deciduous trees in high-density winter ranges. The proportional use of twig biomass decreased as the availability increased. The total as well as proportional biomass consumption were higher on the moist than on the dry type of forest. The per tree consumption of pine was higher on the moist type, where the availability of pine was lower. Deciduous trees were more consumed on the moist type, where their availability was relatively high. The consumption of pine saplings increased as the availability of …
A Jack Pine Bark Factor Equation For Michigan, G.W. Fowler
A Jack Pine Bark Factor Equation For Michigan, G.W. Fowler
Aspen Bibliography
No abstract provided.
Clonal Propagation In Non-Aspen Popular Hybrids, Y.W. Chun
Clonal Propagation In Non-Aspen Popular Hybrids, Y.W. Chun
Aspen Bibliography
Species and hybrids of Populus are considered ideal species for pulpwood, lumber production, and woody biomass production because of their rapid growth, ease of establishment through stem or root cuttings, and relative ease of coppice regeneration [19].