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- Broadleaves (4)
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Articles 1 - 25 of 25
Full-Text Articles in Life Sciences
Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr.
Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr.
Aspen Bibliography
No abstract provided.
Geographical Variation In Nesting Biology And Social Organization Of Halictus Ligatus, Charles D. Michener, Fred D. Bennett
Geographical Variation In Nesting Biology And Social Organization Of Halictus Ligatus, Charles D. Michener, Fred D. Bennett
Mi
No abstract provided.
Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra
Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra
Aspen Bibliography
We must be resourceful. Our "natural" resources are becoming scarcer every day, while waste products mushroom in dumps, along roadsides, in the water and air.
Some Intermountain Endemics, Arthur H. Holmgren
Some Intermountain Endemics, Arthur H. Holmgren
Faculty Honor Lectures
A growing concern for the welfare of endangered or threatened plant and animal species has developed during the past few years, coinciding with an awareness of mankind's deleterious influence on the environment. Technological man has altered vast areas of the earth's surface to such an extent that many species have been endangered or made extinct. Transcontinental highways, shopping malls, industrial parks, home sites where they shouldn't be, and huge acreages turned over by the plow for monocultures, have taken a toll on our native vegetation to such an extent that many species have either lost their diversity or have disappeared. …
Potassium And Calcium Cycling By Eupterotegaeus Rostratus (Acari: Cryptostigmata), A. Carter, J.B. Cragg
Potassium And Calcium Cycling By Eupterotegaeus Rostratus (Acari: Cryptostigmata), A. Carter, J.B. Cragg
Aspen Bibliography
Recent studies in an aspen woodland ecosystem in the Canadian Rockies have elucidated the biology of particular soil organisms and their roles in energy flow and, to a lesser extent, in chemical cycling.
The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe
The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe
Aspen Bibliography
An unknown number of deer are continually killed on summer and winter ranges by predators, and in at least some locations these losses are significant.
Proceedings From The 14th Annual Marschall Invitational Italian Cheese Seminar 1977, Various Authors
Proceedings From The 14th Annual Marschall Invitational Italian Cheese Seminar 1977, Various Authors
Cheese Industry Conference
No abstract provided.
Manually Calculating Fire-Danger Ratings - 1978 National Fire-Danger Rating System, United States Department Of Agriculture, Forest Service
Manually Calculating Fire-Danger Ratings - 1978 National Fire-Danger Rating System, United States Department Of Agriculture, Forest Service
Forestry
This publication contains instructions for manually calculating the indexes and components of the 1978 National Fire-Danger Rating System (NFDRS). The procedures are explained with worked examples. Working sets of nomograms for the 20 NFDRS fuel models are not included. However, an order form for obtaining the needed nomograms is provided. USDA Forest Service General Technical Report INT-39, The National Fire-Danger Rating System--1978 by John E. Deeming, Robert E. Burgan, and Jack D. Cohen, a companion publication, covers the NFDRS background, applications, and general principles of the system.
Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann
Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann
Aspen Bibliography
Biomass prediction equations were developed for 23 northeastern Minnesota shrub species. The allometric function was used to predict leaf, current annual woody twig, stem, and total woody biomass (dry grams), using stem diameter class estimated to the nearest 0.25 cm class at 15 cm above ground level as the independent variable.
Nutrient Transport In Surface Runoff And Interflow From An Aspen-Birch Forest, D.R. Timmons, E.S. Verry, R.E. Burwell, R.F. Holt
Nutrient Transport In Surface Runoff And Interflow From An Aspen-Birch Forest, D.R. Timmons, E.S. Verry, R.E. Burwell, R.F. Holt
Aspen Bibliography
No abstract provided.
A Survey Of Soil Invertebrates In Two Aspen Forests In Northern Minnesota, T.L. Wagner, W.J. Mattson, J.A. Witter
A Survey Of Soil Invertebrates In Two Aspen Forests In Northern Minnesota, T.L. Wagner, W.J. Mattson, J.A. Witter
Aspen Bibliography
Productivity of ecosystems depends to a large extent on the quantity of available nutrients. In natural ecosystems, much of the nutrient stock is unavailable because it is bound in live and dead organic matter. Additions to the pool of available nutrients come from several sources, but the largest and most important one is dead organic matter. Therefore, the productivity of ecosystems is often said to be related to the rate of nutrient release from, or the mineralization of, organic litter (Ghilarov 1971, Satchell 1974).
Managing Aspen [Populus Tremuloides] For Wildlife In The Southwest, David R. Patton, John R. Jones
Managing Aspen [Populus Tremuloides] For Wildlife In The Southwest, David R. Patton, John R. Jones
Aspen Bibliography
No abstract provided.
Grindstone Flat And Big Flat Exclosures: A 41-Year Record Of Changes In Clearcut Aspen Communities, Walter F. Mueggler, D.L. Bartos
Grindstone Flat And Big Flat Exclosures: A 41-Year Record Of Changes In Clearcut Aspen Communities, Walter F. Mueggler, D.L. Bartos
Aspen Bibliography
No abstract provided.
Field Studies Of Pine, Spruce And Aspen Periodically Subjected To Sulfur Gas Emissions, A.H. Legge, D.R. Jaques, R.G. Amundson, R.B. Walker
Field Studies Of Pine, Spruce And Aspen Periodically Subjected To Sulfur Gas Emissions, A.H. Legge, D.R. Jaques, R.G. Amundson, R.B. Walker
Aspen Bibliography
No abstract provided.
Growth And Decay Losses In Colorado Aspen, Thomas E. Hinds, E.M. Wengert
Growth And Decay Losses In Colorado Aspen, Thomas E. Hinds, E.M. Wengert
Aspen Bibliography
Quaking aspen (Populus tremuloides Michx.) stands in Arizona, Colorado, New Mexico, Utah, and Wyoming (fig. 1) contain an estimated 7.1 billion bd ft of sawtimber (Green and Setzer 1974).
Summary Of Nutrient And Biomass Data From Two Aspen Sites In Western United States, Robert S. Johnston, D.L. Bartos
Summary Of Nutrient And Biomass Data From Two Aspen Sites In Western United States, Robert S. Johnston, D.L. Bartos
Aspen Bibliography
No abstract provided.
Preliminary Forest Habitat Types Of The Uinta Mountains, Jan A. Henderson, Ronald L. Mauk, Donald L. Anderson, T.A. Davis, T.J. Keck
Preliminary Forest Habitat Types Of The Uinta Mountains, Jan A. Henderson, Ronald L. Mauk, Donald L. Anderson, T.A. Davis, T.J. Keck
Aspen Bibliography
Following pioneering work in northern Idaho and eastern Washington by Daubenmire, 1952, 1968, and later in Montana, Idaho, Wyoming and Utah by Pfister et al., 1974; Steele et al., 1974, 1975; Cooper, 1975; Reed, 1969; Ream 1964; and Pfister (1972) on the subalpine fir and engelmann spruce series. This current work covers all forest land in Utah and adjacent Wyoming including that covered by Pfister.
Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes
Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes
Aspen Bibliography
No abstract provided.
Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis
Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis
Aspen Bibliography
Characteristics of upland forest floors under mature jack pine and aspen in northeastern Minnesota were investigated.
Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal
Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal
Aspen Bibliography
No abstract provided.
Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith
Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith
Aspen Bibliography
This is one of the reports developed as part of the Forest-Range Environmental Study (FRES) of the Forest Service, U.S. Department of Agriculture. This report presents descriptive sketches of 34 soil-vegetation units, called ecosystems. These cover all the land area of the 48 contiguous States.
Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs
Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs
Aspen Bibliography
The forest types collectively known as "northern hardwoods" (Quigley and Babcock 1969) occupy nearly 100 million acres in eastern North America.
Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds
Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds
Aspen Bibliography
At the request of the White River National Forest, Dave Johnson, Plant Pathologist, FI&DM and Tom Hinds, Plant Pathologist, RMFRES, made an evaluation of aspen mortality in the Maroon Lake Campground, Aspen Ranger District during June 13 to 15, 1977. Previously, Hinds (1976) reported accelerated aspen loss in 17 campgrounds, including Maroon Lake, located throughout Colorado and New Mexico (Fig. 1).
Aspen Mortality At The Maroon Lake Campground, Aspen Ranger District, White River National Forest, David W. Johnson, Thomas E. Hinds, G.L. Downing, F.A. Dorrell
Aspen Mortality At The Maroon Lake Campground, Aspen Ranger District, White River National Forest, David W. Johnson, Thomas E. Hinds, G.L. Downing, F.A. Dorrell
Aspen Bibliography
No abstract provided.
Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet
Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet
Aspen Bibliography
The establishment of an experiment designed to study the effect of thinning and fertilization in a 6 year-old trembling aspen stand, provided the opportunity to determine the mass of the standing crop present at the age.