Treesearch

This resource bulletin is part of a series of reports presenting findings from a University of Montana Bureau of Business and Economic Research (BBER) census of Alaska’s primary forest products industry. Part 1 of this series presents information on the volume of timber harvested in Alaska during 2015 by product, ownership, species, and resource area. It also describes the flow of timber within the state, across state lines, and exports to countries outside the United States.

This paper presents an example of an integrated application of two commonly used multi-criteria decision-making methods in landscape management, AHP and PROMETHEE, in order to select one of four management alternatives as the preferred alternative for management of the Fruska Gora National park in Serbia. AHP was used to derive the weights on five decision criteria, while PROMETHEE was used to assess the performance of four alternative management plans with respect to the five decision criteria. The five decision criteria were promoting biodiversity, wilderness, tourism, education, and use...

This resource bulletin is part of a series of reports presenting findings from a Bureau of Business and Economic Research (BBER) census of Alaska’s primary forest products industry. Part 1 of this series presents information on the volume of timber harvested in Alaska during 2015 by product, ownership, species, and resource area. It also describes the flow of timber within the state, across state lines, and exports to countries outside the United States. Part 2 of the series presents information on the forest products industry sectors that processed timber and mill residue into finished...

The tayra (Eira barbara) is a common and broadly distributed Neotropical carnivore, yet is not well-studied. While this species is apparently associated with forested habitats, it also appears tolerant of some anthropogenic disturbance. We deployed 57 unbaited camera traps (n = 4923 trap-days) in and around a protected area (Furnas do Bom Jesus State Park, São Paulo, Brazil) to survey for tayra and two potentially interactive species: puma (Puma concolor) and free-ranging dogs (Canis familiaris). We used encounter histories generated from photographs and occupancy models to quantify tayra...

Background: The northern spotted owl (Strix occidentalis caurina) is an Endangered Species Act-listed subspecies that requires coniferous forests with structurally complex and closed-canopy old-growth characteristics for nesting. With climate change, large wildfires are expected to become more common within the subspecies’ range and an increasing threat to these types of forests. Understanding fire severity patterns related to suitable nesting forest will be important to inform forest management that affects conservation and recovery. We examined the relationship between fire severity and...

Implementation of wildfire- and climate-adaptation strategies in seasonally dry forests of western North America is impeded by numerous constraints and uncertainties. After more than a century of resource and land use change, some question the need for proactive management, particularly given novel social, ecological, and climatic conditions. To address this question, we first provide a framework for assessing changes in landscape conditions and fire regimes. Using this framework, we then evaluate evidence of change in contemporary conditions relative to those maintained by active fire...

In young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) stands, intensive forest management has resulted in variable responses in survival and growth and therefore stand biomass due to effects on microclimate and competition for limited resources. As seedling genetics and management practices develop over time, there is a need to re-evaluate how Douglas-fir survival and growth varies with intensive practices. Five-year Douglas-fir diameter at 15 cm (D15) and height growth, biomass, and nitrogen (N) pools after organic matter removals and soil compaction at a recently...

Owls are important avian predators in forested systems, but little is known about landscape use by most forest-adapted owl species in environments impacted by mixed-severity wildfire. To better understand species-specific patterns of post-wildfire landscape use within an owl guild, we used passive acoustic monitoring using autonomous recording units. The technology is effective for multi-species surveys, especially if some species are rare, nocturnal, or difficult to detect by traditional means. In 2017, we surveyed the interior and adjacent unburned areas of a 10,700-ha mixed-severity...

In the social sciences, the topic of imaginaries refers to socially constructed, taken-for-granted meanings about events, places, and people. Imaginaries are created symbolically and rhetorically, through claims about self, others, and places; they help people make sense of individual and shared experiences. This study explores how residents of a rural community discursively construct imaginaries to address tourism-related transitions. Telephone interviews were conducted with three types of residents (leaders, permanent residents, and second homeowners) in Burke, Vermont (USA). Results...

This report traces the flow of Oregon’s 2017 timber harvest through the primary wood products industry with detailed descriptions of the structure, timber use, operations, and condition of Oregon’s industry. It is the fourth in a series of reports that periodically update the status of the industry, and is based on a census of timber-using facilities conducted during 2018. Historical forest products industry changes are discussed, as well as trends in harvest, production, mill residue, and sales. Also examined are employment and worker earnings in the state’s primary and secondary forest...