Treesearch

Many researchers have identified and described different segments of family forest owners. This report describes one segmentation scheme that has been developed and used by the Tools for Engaging Landowners (TELE) program using National Woodland Owner Survey data. TELE divides landowners into four broad groups based on their reasons for owning land. Because this segmentation scheme focuses on motivations, it is a particularly useful grouping strategy for designing communications with landowners. The first part of the paper describes the current (2018) TELE segments and shows how they...

Reliable interpretation of fire pattern indicators is essential for wildland fire origin investigations, yet experimental validation is scarce. Damage Differential in the context of this study refers to the measurable changes in combustible and noncombustible objects after fire exposure, enabling the comparison and contrast of fire-caused effects on different faces or zones of artifacts, as described in NWCG PMS 412 (2025, 2016, 2005) and NFPA 921. The principle was quantifiably applied using image analysis and statistical methods (ANOVA) to evaluate directional reliability under controlled...

Homeowners’ willingness to pay for urban forest benefits can be inferred from hedonic property value studies, which use real estate transactions to estimate the elasticity between home value and tree canopy cover (i.e., the % change in home value for a 1 % change in tree cover). We compiled a meta-dataset of 17 hedonic studies to predict this elasticity for 64,658 urban census tracts across the contiguous United States. Three benefit transfer methods were evaluated: matching value transfer using a nearest-neighbor technique, unit value transfer using weighted mean elasticities, and...

The world-wide diversity of ash trees includes genetic information encoding resistance to the ash dieback fungus and the emerald ash borer beetle, which are currently devastating ash populations in Europe and North America. In order to mobilise this genetic diversity in conventional breeding programmes, we need to be able to accurately identify ash species from around the world and cross them with one another. Here, we present a preliminary genetic barcoding system for ash, and a series of hybridisation experiments between European ash and other species. Two of the hybrids show early...

Forests provide critical ecological and economic services in Bhutan. After reports of a heavy adelgid infestation damaging trees in a forest nursery in Changaphu in 2019, a country-wide survey was conducted between 2020 and 2022. Eight adelgid species were found. Four were described elsewhere before this survey: Adelges (Annandina) tsugae Annand, Ad. (Gilletteela) glandulae, Pineus (Pineus) armandicola Zhang, Zhong and Zhang, and P. (P.) wallichianae Yaseen and Ghani. The remaining 4 were new species described in a separate paper: Ad. (Cholodkovskya) changaphuensis Havill and Brunet, Ad....

This literature review synthesizes recent research on use of stable isotopes to advance forest ecosystem management. Stable isotopes provide insights into soil fertility, nutrient cycling, climate variability, and pollution impacts by tracing carbon, nitrogen, and water dynamics. Microbial activity influences on soil conditions are also highlighted. Integration of soil metrics with genomic and forest management strategies allows for an understanding of carbon sequestration and soil health while supporting adaptive approaches to climate change. Seasonal variations in nitrogen uptake and the...

Understanding the spatial and demographic structure of local outbreaks is critical for identifying the ecological mechanisms underlying invasive forest insect dynamics.We investigated a population outbreak of Sirex noctilio within a pine plantation in Patagonia by integrating spatial analyses of infestation patterns with quantification of oviposition behaviour and adult performance.At the plot level, the distribution of infested trees shifted from a highly clustered pattern in previous seasons to a more spatially dispersed one of newly attacked treesLogs sampled from S. noctilio ‐infested...

Despite about half a million injurious pedestrian falls occurring annually in the United States, prevention of pedestrian falls is under studied. Sidewalk damage from street trees is a known risk for falls; however, tree canopy cover might reduce falls in summer months by lowering ambient temperatures. We conducted pilot research to assess whether emergency medical services (EMS) data could be used to implement a multi-city, location-based case–control study investigating the association between tree canopy cover and locations of injurious pedestrian falls. Case locations (n= 497) were...

Global conservation targets include protecting genetic diversity within species. Yet few studies have assessed whether protected areas (PAs) include genetically diverse populations across species globally. A first step is understanding the availability of population genetic data that could be used in these assessments. We surveyed georeferenced population-level nuclear (as opposed to mitochondrial or plastid-based) genetic data across continents and marine biomes (36,354 populations, 2809 species) and found substantial geographic and taxonomic gaps. Most data were concentrated in Europe...

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in Nebraska. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all...