Treesearch

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Maine. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly.Tables for Forests of Maine, 2019 can be found at https://doi.org/10.2737/FS-RU-236-TablesThe FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

As the American Fisheries Society (AFS) approaches its sesquicentennial, it is a time to take a moment to celebrate the increasing diversity within the Society and the pivotal role of pioneering women in shaping fisheries. Gender disparities still persist in science, including in fisheries where only a fraction of academic tenure-track, research, and federal scientist positions are held by women, though attainment of PhDs in biological sciences is equal between women and men. In addition, an extensive review of published peer-reviewed articles in both the International Aquaculture Curated...

As we reflect on the rich history of the American Fisheries Society (AFS), no greater inspiration emerges than the pioneering figure of our 47th president, Dr. Emmeline Moore. In addition to serving as the Society’s first woman president, her groundbreaking research in the fields of aquatic ecology, fish health, and watershed-based ecosystems irrevocably shaped fisheries research and management. She led the New York State Conservation Department (NYSCD), reminiscing “I had to be all things to all fishes”. She was similarly broad in her service to AFS as is demonstrated by her participation...

As a result of the dominance of urea formaldehyde (UF)-bonded particleboard, it seemed worthwhile to examine formaldehyde emissions years after production. A California Air Resources Board (CARB) phase II-compliant commercial particleboard produced with a UF resin adhesive was compared to a no-added formaldehyde (NAF)-particleboard produced with Soyad™ adhesive resin for formaldehyde emissions during exposure to elevated humidity and temperature conditions after being in a room at 21 ± 1.9 ◦C, 50 ± 3.3% relative humidity for 3.5 years. A modifed version of EN 717-3 was used to collect...

Fungal decay and fire resistance properties of wood treated with nanochitosan-TPP particles were investigated. Quaternized and nonquaternized nano-chitosan particles crosslinked with a commercial fire-retardant, tripolyphosphate, were prepared from low molecular weight chitosan (with a molecular weight of 50 to 190 kDa). Different treatments were performed on southern yellow pine wood samples via a vacuum impregnation process for both quaternized and non-quaternized nanochitosan-TPP particles with a concentration ratio of 12% to 4.8% (nanochitosan to TPP). Both the leached and unleached...

Watershed assessments have become common for prioritizing restoration in river networks. These assessments primarily focus on geomorphic conditions of rivers but less frequently incorporate non-geomorphic abiotic factors such as water chemistry and temperature, and biotic factors such as the structure of food webs. Using a dynamic food web model that integrates physical and ecological environmental conditions of rivers, we simulated how juvenile salmon (Oncorhynchus spp.) biomass responded to restoration at twelve sites distributed across the Methow River (Washington, USA), ranging from...

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Missouri. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly.Tables for Forests of Missouri, 2019 can be found at https://doi.org/10.2737/FS-RU-229-TablesThe FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

Introduction: Conduct problems are commonly reported among individuals with autism spectrum disorders (ASD) and children with other special health care needs (CSHCN). Environmental research indicates that exposure to natural environments can lead to decreased conduct problems; opposite effects (i.e., increased problems) are associated with built “gray” environments (e.g., roadways). Methods: This exploratory study analyzed the association between Zip-code level tree canopy coverage and severity of conduct problems in typical children, children with ASD, and CSHCN. Tree canopy data came...

A counter-balanced mass measurement system was constructed to allow measurement of water loss from a full-scale wood-framed wall assembly. Water was injected onto a localized area of paper towel adjacent to the oriented strand board (OSB) wall sheathing. Moisture pins in the OSB and relative humidity/temperature sensors inside the insulated wall cavity monitored conditions as the wall dried out. The wetted OSB area’s moisture content dropped at a faster rate than the total mass of the wall, indicating moisture redistribution within the wall. A simple model was used to calculate overall...

We previously described the structure and activity of a glycoside hydrolase family 30 subfamily 8 (GH30-8) endoxylanase, CaXyn30A, from Clostridium acetobutylicum which exhibited novel glucuronic acid (GA)-independent activity. Immediately downstream from CaXyn30A is encoded another GH30-8 enzyme, CaXyn30B. While CaXyn30A deviated substantially in the highly conserved β7-α7 and β8-α8 loop regions of the catalytic cleft which are responsible for GA-dependence, CaXyn30B maintains these conserved subfamily 8 amino acid residues thus predicting canonical GA-dependent activity. In this report,...