Treesearch
Displaying 1 - 10 of 62,799 Publications- Recovered and recovering carnivore populations in Europe and North America can pose risks to some human livelihoods like livestock ranching. These risks can motivate wildlife managers to lethally remove carnivores—decisions that are often controversial and poorly understood. We used a 13-year dataset on gray wolves (Canis lupus) in the northwestern United States (Montana, Idaho, Washington, and Oregon) to analyze how social, demographic, and environmental variables influence lethal removal of wolves at the county and state levels. We found that state-level differences are a major driver of let...AuthorsLeandra Merz, Nicolas Bergmann, Casey Brown, Jeff Martin, Chloe Wardropper, Jeremy Bruskotter, Neil H. CarterKeywordsSourceEnvironmental Research: Ecology. 4(1): 015008Year2025
- The frequency of tracts of timber offered for sale that do not receive any bids, also known as no-bids, is a concern for public land managers. No-bids can delay forest management and result in lost revenue to federal and state agencies. We used data collected by the USDA Forest Service (Forest Service) and the Minnesota Department of Natural Resources (MN DNR) to assess the impact of appraisal adjustments on the appraised value of federal and state timber tracts offered for sale in Minnesota and quantify the impact of appraisal characteristics on the likelihood of a sale. We found that Forest ...AuthorsSonia R. Bruck, Michael A. Kilgore, Jesse D. Henderson, Gregory E. FreySourceForest ScienceYear2025
- This case study conducted a cradle-to-gate life cycle assessment (LCA) on the production of hardwood lumber in New Brunswick, Canada, evaluating the environmental impacts from raw material extraction to the point where lumber exited the mill as rough green lumber, the primary input for manufacturing pallets and railway ties. Data on annual production, material flow, and energy use for harvesting and sawmilling were gathered through survey questionnaires and on-site visits. The life cycle inventory (LCI) was developed in SimaPro software, the life cycle impact assessment (LCIA) was conducted us...AuthorsNadia Zahabi, Meng Gong, Hongmei Gu, Janet BlackadarKeywordsSourceJournal: BuildingsYear2025
- Although insurance is an important risk management tool in many resource-dependent sectors, its connections to natural resource use are not well understood. We estimate the impact of US federal crop insurance pricing policy on the private use of common pool groundwater in the High Plains region of the United States. Field level panel data on insurance purchases and groundwater extraction allow us to exploit spatial discontinuities in insurance prices at county borders while instrumenting for endogenous prices. A theoretical model describes the mechanisms connecting insurance and resource extra...AuthorsMatthew R. Sloggy, R. Aaron Hrozencik, Dale T. Manning, Chris G. Goemans, Roger L. ClaassenKeywordsSourceJournal of Environmental Economics and Management. 130(1): 103125.Year2025
- After one year of surveying semiaquatic earthworms (oligochaeta, Sparganophilidae), we describe Sparganophilus jenkinsi sp. nov., S. carveri sp. nov., S. oconeeae sp. nov., S. williamsae sp. nov., S. muskogee sp. nov., S. youngae sp. nov., and S. borgesae sp. nov. based on extensive differences in morphological characters and molecular data. Three additional species are described morphologically but not formally named due to limited material. the species of Sparganophilus described here can be organized into three species groups: (1) S. jenkinsi, S. oconeeae, S. muskogee, S. carveri, S. willia...AuthorsROBERTO CARRERA-MARTÍNEZ, MELANIE TAYLOR, DANIEL JONES, SEAN D. SCHOVILLE, BRUCE A. SNYDER, MAC A. CALLAHAMKeywordsSourceZootaxaYear2025
- The scale of wildfires, in terms of acreage burned and mortality rates, is on the rise due to climate change. There are various causes for wildfire ignition; however, power lines are one of the most significant factors, leading to some of the most devastating wildfire events over the past decade and even bankrupting electric utilities. Traditional insurance strategies are often not applicable for providing financial resilience to electric utilities against such catastrophic events. This paper quantifies the associated risk and proposes a catastrophe bond (CAT bond) as a form of parametric insu...AuthorsSaeed Nematshahi, Behrouz Sohrabi, Ali Arabnya, Amin Khodaei, Erin BelvalSourceIEEE Transactions on Energy Markets, Policy and Regulation. https://doi.org/10.1109/TEMPR.2024.3501012.Year2025
- Rapid increases in wildfire area burned across North American forests pose novel challenges for managers and society. Increasing area burned raises questions about whether, and to what degree, contemporary fire regimes (1984-2022) are still departed from historical fire regimes (pre-1880). We use the North American tree-ring fire-scar network (NAFSN), a multi-century record comprising >1800 fire-scar sites spanning diverse forest types, and contemporary fire perimeters to ask whether there is a contemporary fire surplus or fire deficit, and whether recent fire years are unprecedented relative ...AuthorsSean A. Parks, Christopher H. Guiterman, Ellis Q. Margolis, Margaret Lonergan, Ellen Whitman, John T. Abatzoglou, Donald A. Falk, James D. Johnston, Lori D. Daniels, Charles W. Lafon, Rachel A. Loehman, Kurt F. Kipfmueller, Cameron E. Naficy, Marc-André Parisien, Jeanne Portier, Michael C. Stambaugh, A. Park Williams, Andreas P. Wion, Larissa L. YocomSourceNature Communications: 16: 1493.Year2025
- Core Habitat areas are the most ecologically intact sagebrush areas, while Growth Opportunity areas are generally quality sagebrush areas with low to moderate ecosystem threats that can become Core Habitat with restoration. Roughly 2.6 million acres of Core Habitat areas and 5.7 million acres of Growth Opportunity areas are found on Forest Service lands. The largest Core Habitat areas on Forest Services lands are concentrated in national forest and grasslands in Wyoming, North Dakota, Idaho, Nevada, and Montana (fig. 1, table 1). The largest Growth Opportunity areas on Forest Service lands are...AuthorsHannah Farrell, Teagan HayesKeywordsSourceFort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 2 p.Year2025
- We conducted a qualitative literature review and provided a theoretical discussion of how private, common, and public land property rights (LPRs) uniquely influence the effectiveness of Payments for Ecosystem Service (PES). We considered three aspects of PES’s effectiveness: additionality (PES programs typically employ tests to assess whether the payment will result in additional ecosystem services), socioeconomic impacts, and transaction costs. The existing literature has not addressed differences between LPR types with respect to ensuring additionality. Particularly striking is the lack of c...AuthorsHaojie Chen, Matthew R. Sloggy, Samuel EvansKeywordsSourceLand Use Policy. 151(1): 107496.Year2025
- Ammonia (NH3) concentration and flux measurements made in 2016 in a mixed deciduous forest at the western North Carolina Coweeta Hydrologic Laboratory are analyzed using a multi-layer, one-dimensional column model with detailed canopy physics and bi-directional exchange. Simulations for April 26–30 and July 19–30 are presented to assess the model's ability to represent measured in-canopy NH3 profiles and probe the processes that control bi-directional exchange with the canopy and forest floor. During dry canopy conditions, model simulations are found to well reproduce measured in-canopy profil...AuthorsRick D. Saylor, John T. Walker, Zhiyong Wu, Xi Chen, Donna B. Schwede, A.Christopher Oishi, Nebila LichihebKeywordsSourceEcological ModellingYear2025