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Keyword: forest management

Identifying old trees to inform ecological restoration in montane forests of the central Rocky Mountains, USA

Publications Posted on: April 05, 2019
Old trees (defined here as ≥150 years old) can be rare in many forests because of past timber harvest, uncharacteristically severe wildfires, and - increasingly - climate change. Old trees provide unique structural, ecological, scientific, and aesthetic values missing in forests containing only younger trees.

Open forest management for early successional birds

Publications Posted on: March 27, 2019
Wildlife biologists classify some bird species as early successional because of apparent dependence on early successional vegetation such as forbs, grasses, shrubs, and small trees.

System analysis in forest resources: proceedings of the 2003 symposium.

Publications Posted on: March 07, 2019
The 2003 symposium of systems analysis in forest resources brought together researchers and practitioners who apply methods of optimization, simulation, management science, and systems analysis to forestry problems. This was the 10th symposium in the series, with previous conferences held in 1975, 1985, 1988, 1991, 1993, 1994, 1997, 2000, and 2002.

Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts

Publications Posted on: February 21, 2019
Recent, widespread spruce beetle (Dendroctonus rufipennis) outbreaks have driven extensive tree mortality across western North America. Post-disturbance forest management often includes salvage logging to capture economic value of dead timber, reduce fire hazard, and meet other social or ecological objectives.

Landscape applications of machine learning: Comparing random forests and logistic regression in multi-scale optimized predictive modeling of American marten occurrence in northern Idaho, USA [Chapter 9]

Publications Posted on: December 04, 2018
The American marten (martes americana) is a species that is dependent on old conifer forest at middle to high elevations and is highly sensitive to habitat loss and fragmentation in a scale dependent fashion (e.g., Hargis et al. 1999; Wasserman et al. 2012a, b), and forest management is often influenced by considerations of how management will affect extent and pattern of marten habitat.

Recovering from the mountain pine beetle

Publications Posted on: November 20, 2018
Beginning in the late 1990s, the pine forests of Montana began to experience the largest mountain pine beetle outbreak in recorded history. Large swaths of forests began to turn red, then gray as the beetles ate their way through Pacific Northwest stands. At their peak in 2009, this native insect infested nearly 3.7 million acres statewide, leaving dead or dying trees in their wake.

Does oil and gas development impact recreation visits to public lands? A cross-sectional analysis of overnight recreation site use at 27 national forests with oil and gas development

Publications Posted on: November 19, 2018
Drawing on national forest visitor use data from 722 overnight use recreation sites across 27 National Forests with oil and gas development, this work examines whether the presence of oil and gas development within five kilometers of an overnight recreation site affects site visitation. Findings suggest that sites within five kilometers of oil and gas wells see less visitation, compared to sites farther away from wells.

A reconceptualization of open oak and pine ecosystems of eastern North America using a forest structure spectrum

Publications Posted on: November 15, 2018
We present a reconceptualization of forests in eastern North America by differentiating the ecological characteristics of open oak (Quercus) and pine (Pinus) forests from closed successional and oldgrowth forests. Despite historical abundance of savannas and woodlands, the fundamental ecology of open forest ecosystems remains ill-defined when compared to either closed forests or grasslands.

Comparisons between wildfire and forest harvesting and their implications in forest management

Documents and Media Posted on: October 03, 2018
Emulation silviculture is the use of silvicultural techniques that try to imitate natural disturbances such as wildfire. Emulation silviculture is becoming increasingly popular in Canada because it may help circumvent the political and environmental difficulties associated with intensive forest harvesting practices. In this review we summarize empirical evidence that illustrates disparities between forest harvesting and wildfire.Document Type: Other Documents

Mass of downed wood in northern hardwood forests in New Hampshire: Potential effects of forest management

Documents and Media Posted on: October 03, 2018
Downed (i.e., fallen, dead) wood was sampled in 1-, 15-, 50-, and 100-year-old managed stands, an uneven-aged, managed stand, and an uncut stand of northern hardwoods in New Hampshire. Mass of downed wood ranged from a mean of 32 t/ha in the 15-and 50-year-old stands to 86 t/ha in the recently cut stand.Document Type: Other Documents