Treesearch

Dams and the reservoirs they create are notorious for disrupting the migration of salmon, both when they travel downstream as juveniles and when they return to spawn years later as adults. In an effort to improve downstream salmon migration, the U.S. Army Corps of Engineers in 2011 began yearly, short-term draining of Fall Creek Reservoir located on a tributary of the Willamette River in Oregon. The reservoir is drained down to the streambed over one week every autumn. The full effects of this novel practice were largely unknown until researchers Sherri Johnson and Christina Murphy...

This resource bulletin is part of a series of reports presenting findings from a census of Alaska’s primary forest products industry. Part 2 of the series presents information on the forest products industry sectors that processed timber and mill residue into finished wood products in 2015. All dollar figures included have been adjusted for inflation to constant 2015 dollars, unless otherwise noted.

This resource bulletin is part of a series of reports presenting findings from a census of Alaska’s primary forest products industry. Part 3 of the series presents information on sales value and employment associated with primary wood products manufacturing, the economic contribution of forest products manufacturing in the state, and an analysis of the changes in the broader forest industry over time. All dollar figures included have been adjusted for inflation to constant 2015 dollars, unless otherwise noted.

This resource bulletin is part of a series of reports presenting findings from a census of Alaska’s primary forest products industry. Part 4 of the series presents data tables characterizing information on Alaska’s forest products industry sectors that processed timber and mill residue into finished wood products during 2015. Part 4 of this series includes those tables contained in parts 1 through 3 as well as supplemental tables characterizing additional information on Alaska’s forest products industry and timber harvest.

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 report reviews existing research and datasets from 17 U.S. Forest Service-affiliated experimental forests and ranges (EFRs) that are relevant to science needs of state and federal water quality regulatory agencies. A focus group of regulatory personnel chose “biological responses to stream nutrients” as the focus for this synthesis, and identified a broader array of science topics that could be of regulatory interest. Additional research needs of regulators that could potentially be filled by future studies at these sites were identified as (1) the composition of biotic communities...

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...