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Ecosystem

Displaying 5221 - 5240 of 5949 results

Geostatistics provides a method to describe the spatial continuity of many natural phenomena. Spatial models are based upon the concept of scaling, kriging and conditional simulation. These techniques were used to describe the spatially-varied…
Author(s): Peter R. Robichaud
Year Published:

Provides information on fire ecology in forest habitat and community types occurring in northern Idaho. Identifies fire groups based on presettlement fire regimes and patterns of succession and stand development after fire. Describes forest fuels…
Author(s): Jane Kapler Smith, William C. Fischer
Year Published:

No description available.
Author(s): William H. Romme, Monica G. Turner, Robert H. Gardner, William W. Hargrove, Gerald A. Tuskan, Don G. Despain, Roy A. Renkin
Year Published:

Fires occur frequently in dry forests of the Inland West. Fire effects vary across the landscape, reflecting topography, elevation, aspect, slope, soils, and vegetation attributes. Patches minimally affected by successive fires may be thought of as…
Author(s): Ann Camp, Chad Oliver, Paul F. Hessburg, Richard L. Everett
Year Published:

Issues related to forest health and the threat of larger, more destructive wildfires have led to major new initiatives to restructure and recompose forest communities in the western United States. Proposed solutions will depend, in part, on…
Author(s): Bruce E. Rieman, James L. Clayton
Year Published:

This FEIS species review synthesizes information on the relationship of Aristida purpurea (purple threeawn) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Janet L. Howard
Year Published:

Species descriptions for Betula nana and Betula glandulosa.
Author(s): William J. de Groot, P. A. Thomas, Ross W. Wein
Year Published:

Presents maps of major fire episodes in the inland northwestern United States between 1540 and 1940 based on a compilation of fire history studies. Estimates annual acreage historically burned in this region and compares that with recent fire years.
Author(s): Stephen W. Barrett, Stephen F. Arno, James P. Menakis
Year Published:

Methods for the quantification of coarse woody debris volume and the description of spatial patterning were studied in the Tenderfoot Creek Experimental Forest, Montana. The line transect method was found to be an accurate, unbiased estimator of…
Author(s): Paul B. Alaback, Duncan C. Lutes
Year Published:

This report evaluates 24 computer-aided decision support systems (DSS) that can support management decision-making in forest ecosystems. It compares the scope of each system, spatial capabilities, computational methods, development status, input and…
Author(s): H. Todd Mowrer
Year Published:

We used 16 years of survey data for a moose population, and 3 Landsat satellite scenes, 19 years, to evaluate the hypotheses that Ontario's Moose Habitat Guidelines for timber harvest: (1) the effects of unmodified clearcuts on moose populations,…
Author(s): Robert S. Rempel, Philip C. Elkie, Arthur R. Rodgers, Michael J. Gluck
Year Published:

Wildfire is a major large-scale disturbance affecting terrestrial landscapes and lotic ecosystems in many regions of the world. We examined environmental and biological responses of 20 streams in Yellowstone National Park, U.S.A., over 5 years…
Author(s): G. Wayne Minshall, Christopher T. Robinson, Deron E. Lawrence
Year Published:

Mindful learning takes place with an awareness of contexts and of the ever-changing nature of information. A mindful approach is distinguished by three characteristics: the continuous creation of new categories, openness to new information, and an…
Author(s): Ellen J. Langer
Year Published:

This FEIS species review synthesizes information on the relationship of Ambystoma macrodactylum (long-toed salamander) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Janet L. Howard
Year Published:

Alder recognizes two decisions common to both the Mann Gulch and Storm King Mountain fires that influenced the behavior of firefighters during critical moments: 1) failing to question authority and 2) failing to obey authority. He argues that these…
Author(s): G. Stoney Alder
Year Published:

This FEIS species review synthesizes information on the relationship of Poa fendleriana (Fendler bluegrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Janet L. Howard
Year Published:

This FEIS species review synthesizes information on the relationship of Spea intermontana (Great Basin spadefoot) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Janet L. Howard
Year Published:

Atwood notes that while managers must adopt a passion for safety, the true test is on the fire line. Supervisors are in charge of making decisions that ultimately put safety first, or not.  Atwood argues that improvement will not come from the…
Author(s): George Atwood
Year Published:

Laboratory studies were conducted with five early life stages of rainbow trout, Oncorhynchus mykiss, to determine the acute toxicities of five fire‐fighting chemical formulations in standardized soft and hard water. Eyed egg, embryo–larvae, swim‐up…
Author(s): M. P. Gaikowski, Steven J. Hamilton, Kevin J. Buhl, S. F. McDonald, C. H. Summers
Year Published:

Anyone who has ever tried building fireline on rocky land knows there has been a need for an inexpensive, efficient piece of equipment to do this job. We've recently invented a simple fireline plow to build fireline in such terrain. Fireline…
Author(s): Nathan P. Arno, Stephen F. Arno
Year Published: