Treesearch

Water vapor sorption is a fundamental physical property of wood and has numerous implications for the behavior of wood as a building material. As a result, water vapor sorption isotherms have been studied for over a century and are the topic of countless publications. Despite their importance and depth of study, there has not yet been a thorough review of these studies that can be used to guide readers to the highest quality sorption data. Sorption data acquired at multiple temperatures are frequently used for thermodynamic analysis or to validate sorption models. This review summarizes...

Adaptive seed dispersal mechanisms are fundamental to plant fitness, but dispersal advantage is scale-dependent. We tested the hypothesis that informed dispersal in response to an environmental cue enables dispersal by wind on a local scale for Astragalus holmgreniorum, a desert species restricted to swales and wash skirts with overland flow, but prevents longer-distance dispersal by water into unfavorable wash habitats.

To keep environmental product declarations current, the underlying life-cycle inventory data and subsequent life-cycle assessment (LCA) data for structural wood products must be updated. This publication developed the cradle-to-gate LCA production of southeast laminated veneer lumber aligned to the new ULE 2019 wood product PCR.

To keep environmental product declarations current, the underlying life-cycle inventory data and subsequent life-cycle assessment (LCA) data for structural wood products must be updated. This publication developed the cradle-to-gate LCA production of Pacific Northwest composite I-joists aligned to the new ULE 2019 wood product PCR.

To keep environmental product declarations current, the underlying life-cycle inventory data and subsequent life-cycle assessment (LCA) data for structural wood products must be updated. This publication developed the cradle-to-gate LCA production of southeast composite I-joists aligned to the new ULE 2019 wood product PCR.

To keep environmental product declarations current, the underlying life-cycle inventory data and subsequent life-cycle assessment (LCA) data for structural wood products must be updated. This publication developed the cradle-to-gate LCA production of Pacific Northwest laminated veneer lumber aligned to the new ULE 2019 wood product PCR.

Ecological resilience is essential for maintaining ecosystem services in an era of rapid global change, but successful attempts to operationalize it for managing ecosystems at risk have been limited. Clear formulation and application of ecological resilience concepts can guide ecosystem management so that it enhances the capacity of ecosystems to resist and recover from disturbances and provides adaptive space for periods of ecological reorganization. As originally defined, ecological resilience measures the amount of perturbation required to change an ecosystem from one set of processes...

Through the application of silvicultural research, the forests of the South that were devastated by aggressive harvesting in the early 20th century have been restored to become the most productive and sustainable forests in the world. The development of this research capability and its application throughout the South is documented, and the role of the Biennial Southern Silvicultural Research Conference is discussed.

Canada lynx (Lynx canadensis) occupy cold wet forests (boreal and subalpine forest) that were structured by natural disturbance processes for millennia. In the Southern Rocky Mountains, at the species’ southern range periphery, Canada lynx habitat has been recently impacted by large-scale disturbance from spruce beetles (Dendroctonus rufipennis). This disturbance poses a challenge for forest managers who must administer this novel landscape in ways that also facilitate timber salvage. To aid managers with this problem, we instrumented Canada lynx with GPS collars to document their selection...

Roads have several negative effects on large mammals including restricting movements, isolating populations, and mortality due to vehicle collisions. Where large mammals regularly cross roads, driver safety is also a concern. Wildlife road crossing structures are often proposed to mitigate the negative effects on wildlife and human safety. However, few studies have compared the efficacy of different methods in identifying wildlife road crossing and mitigation locations.