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Keyword: snags

Historic range of variability for upland vegetation in the Medicine Bow National Forest, Wyoming

Publications Posted on: August 01, 2018
An approach for synthesizing the results of ecological research pertinent to land management is the analysis of the historic range of variability (HRV) for key ecosystem variables that are affected by management activities. This report provides an HRV analysis for the upland vegetation of the Medicine Bow National Forest in southeastern Wyoming.

Ecology, silviculture, and management of Black Hills ponderosa pine

Publications Posted on: August 01, 2018
This paper presents a broad-based synthesis of the general ecology of the ponderosa pine ecosystem in the Black Hills. This synthesis contains information and results of research on ponderosa pine from numerous sources within the Black Hills ecosystem.

Managing western white pine plantations for multiple resource objectives

Publications Posted on: May 11, 2018
Western white pine (Pinus monticola Dougl. ex D. Don) continues to be one of the most important coniferous tree species growing in Northern Rocky Mountain forests. Because large wildfires occurred early in the 1900s, many plantations of western white pine with varying levels of resistance to blister rust (Cronartium ribicola Fisch.) were established.

Changes in snag populations on National Forest System lands in Arizona, 1990s to 2000s

Publications Posted on: December 30, 2016
Snags receive special management attention as important components of forest systems. We used data from the US Department of Agriculture (USDA) Forest Service Forest Inventory and Analysis Program, collected during two recent time periods (1995 to 1999 and 2001 to 2010), to evaluate trends in snag populations in two forest types in Arizona. Densities of snags ≥4 in.

Snag and log populations in northern Arizona mixed-conifer and ponderosa pine forests

Science Spotlights Posted on: August 24, 2016
Since 1997, RMRS scientists have monitored populations of snags (standing dead trees) and downed logs in northern Arizona mixed-conifer and ponderosa pine forests, as well as patterns of climate-mediated tree mortality influencing inputs to snag and log populations.

The Fire and Fuels Extension to the Forest Vegetation Simulator

Publications Posted on: May 12, 2016
The Fire and Fuels Extension (FFE) to the Forest Vegetation Simulator (FVS) simulates fuel dynamics and potential fire behaviour over time, in the context of stand development and management. Existing models of fire behavior and fire effects were added to FVS to form this extension. New submodels representing snag and fuel dynamics were created to complete the linkages. This report contains four chapters.

Coarse woody debris: Managing benefits and fire hazard in the recovering forest

Publications Posted on: May 12, 2016
Management of coarse woody debris following fire requires consideration of its positive and negative values. The ecological benefits of coarse woody debris and fire hazard considerations are summarized. This paper presents recommendations for desired ranges of coarse woody debris. Example simulations illustrate changes in debris over time and with varying management.

Implementing the expanded prescribed fire program on the Gila National Forest, New Mexico: implications for snag management

Publications Posted on: May 12, 2016
Efforts to return natural fire to the Gila National Forest, New Mexico, have resulted in controversy regarding management of snags (standing dead trees). The importance of snags for wildlife, especially cavity-dependent birds, is well documented.

Effects of wildfire on densities of secondary cavity-nesting birds in ponderosa pine forests of northern Arizona

Publications Posted on: May 12, 2016
Many catastrophic wildfires burned throughout forests in Arizona during the spring and summer of 1996 owing to severely dry conditions. One result of these fires was a loss of preexisting tree cavities for reproduction. In ponderosa pine (Pinus ponderosa) forests most cavities are found in dead trees; therefore, snags are a very important habitat component for cavity-nesting species.

Recommendations for snag retention in southwestern mixed-conifer and ponderosa pine forests: History and current status

Publications Posted on: February 10, 2016
Snags provide habitat for numerous species of wildlife. Several authors have provided recommendations for snag retention in southwestern mixed-conifer and ponderosa pine (Pinus ponderosa) forests. Most recommendations were presented in terms of minimum snag density and/or size.