Treesearch
Displaying 1 - 10 of 62,750 Publications- Rangelands around the globe are experiencing management challenges associated with existing and emerging stressors, including more frequent and severe fires, woody species expansion, annual grass invasion, heavy, repeated growing season grazing, and climate change. Disturbance is an essential part of rangeland systems. Yet climate change is likely to affect rangelands most directly by increasing the likelihood, severity, and extent of long term, negative impacts from disturbance. We conducted a synthesis of key vulnerabilities to climate change for Northwest US rangelands. These rangelands are...AuthorsAnna T. Maher, Holly R. Prendeville, Jessica E. Halofsky, Mary M. Rowland, Kirk W. Davies, Chad S. BoydSourceRangeland Ecology & Management. 98(1): 399-413.Year2025
- Accurate positioning in the forest (e.g., less than 1–2 m horizontal error) is needed to leverage the potential of high-resolution auxiliary data sources such as airborne or satellite imagery, lidar, and photogrammetric heights used in forest monitoring. Unfortunately, typical short duration occupations in the forest with budget Global Navigation Satellite System (GNSS; GPS is the American constellation) receivers are generally inaccurate (horizontal errors >5–20 m). This study demonstrates that accurate GNSS positioning is feasible beneath 40 to 60 m-tall closed-canopy conifer forests of west...AuthorsJacob Strunk, Stephen E. Reutebuch, Robert J. McGaughey, Hans-Erik AndersenKeywordsSourceRemote Sensing Applications: Society and Environment. 37(3): 101428.Year2025
- Originally, forest sustainability was primarily concerned with continual timber production. Contemporary concepts such as sustainable forest management (SFM) and climate-smart forestry (CSF) emphasize the continual production of multiple forest goods and services, both market and non-market. In addition to the creation of new programs for CSF, recent legislation in the United States (US) has expanded the use of incentive programs traditionally used for subsidizing SFM to also support management activities that aid in climate adaptation and mitigation. Understanding landowner perceptions of inc...AuthorsStephanie Chizmar, Tamara Cushing, Srijana Baral, Tatyana RusevaKeywordsSourceTrees, Forests and PeopleYear2025
- Forests contribute to the nutritional and medicinal needs of billions of people worldwide. In the United States, the extent and impacts of provisioning forest foods are not fittingly understood. This study seeks to elucidate the scope and scale of forest food harvest. Using publicly available data, hunting surveys and proprietary data from the Wild Harvest Initiative®, we provide estimates of the amount of foods and medicines from wild-harvested flora and fauna, and meat produced from domesticated livestock grazed on public forest lands. The evidence strongly supports the assertion that large ...AuthorsJames Chamberlain, Richard D. Honor, Karl Malcolm, Shane P. Mahoney, J. Ryan Bellmore, Matthew C. Reeves, Hailey Wilmer, Marie K. Gutgesell, Lauren A. SillSourceTrees, Forests and PeopleYear2025
- Whether specialist pests can cause more damage to their host plants than generalist pests is a critical issue in both basic biology and nonnative species management. To date, there is no consensus on how we define “specialist vs. generalist” pests and how we should assess forest damage or impacts (volume loss vs. mortality). Here, we comparatively investigate whether nonnative generalist pests may cause more damage to US forests than nonnative specialist pests using two frameworks: (1) the “binary or dichotomous approach” through a largely arbitrary classification of specialist and generalist ...AuthorsQinfeng Guo, Kevin PotterKeywordsSourceForestsYear2025
- Soil respiration plays a key role in regulating ecosystem CO2 emissions and atmospheric concentrations. However, because it is highly sensitive to the environment and has large temporal and spatial variability, its contribution to the global carbon cycle remains highly uncertain. Recent advances in ecosystem process models have uniquely constrained soil respiration rates, largely based on results from tracing ecosystem CO2 losses using radioisotope and stable isotope methods. However, the computational requirements of process-based models at large scales are costly, limiting their application ...AuthorsS.N. Ferdous, J.P. Ahire, R. Bergman, L. Xin, E. Blanc-Betes, Z. Zhang, J. WangKeywordsSourceJournal: Ecological InformaticsYear2025
- Temperate agroforestry practices offer various ecological, social, and economic benefits. However, data surrounding drivers of adoption for agroforestry in the U.S. remains limited. A survey of Missouri agricultural land managers was conducted to determine the extent of agroforestry adoption in the state, current knowledge and perceptions of agroforestry, and interest in implementing agroforestry practices. A choice experiment model was employed to assess participants’ willingness to accept (WTA) payment for adopting agroforestry practices and to determine land managers’ valuation of technical...AuthorsKelsi Stubblefield, Matthew Smith, Sarah Lovell, Kelly Wilson, Mary Hendrickson, Zhen CaiKeywordsSourceJournal: Agroforestry SystemsYear2025
- Evidence of unintended introductions of Phytophthora species into native habitats has become increasingly prevalent in California. If not managed adequately, Phytophthora species can become devastating agricultural and forest plant pathogens. Additionally, California’s natural areas, characterized by a Mediterranean climate and dominated by chaparral (evergreen, drought-tolerant shrubs) and oak woodlands, lack sufficient baseline knowledge on Phytophthora biology and ecology, hindering effective management efforts. From 2018 to 2021, soil samples were collected from Angeles National Forest lan...AuthorsSebastian N. Fajardo, Tyler B. Bourret, Susan J. Frankel, David M. RizzoKeywordsSourceJournal of Fungi. 11(1): 33.Year2025
- Terrestrial vegetation is a crucial component of Earth’s biosphere, regulating global carbon and water cycles and contributing to human welfare. Despite an overall greening trend, terrestrial vegetation exhibits a significant inter-annual variability. The mechanisms driving this variability, particularly those related to climatic and anthropogenic factors, remain poorly understood, which hampers our ability to project the long-term sustainability of ecosystem services. Here, by leveraging diverse remote sensing measurements, we pinpointed 2020 as a historic landmark, registering as the greenes...AuthorsYulong Zhang, Jiafu Mao, Ge Sun, Qinfeng Guo, Jeffrey Atkins, Wenhong Li, Mingzhou Jin, Conghe Song, Jingfeng Xiao, Taehee Hwang, Tong Qiu, Lin Meng, Daniel M. Ricciuto, Xiaoying Shi, Xing Li, Peter Thornton, Forrest HoffmanKeywordsSourceRemote Sensing of EnvironmentYear2025
- 1. Urban natural area forests provide cities with crucial ecosystem services, including carbon storage and sequestration. Although previous work from a single city has suggested that urban natural area forests may be carbon-rich and dominated by native species, it is unclear if that pattern is widespread. Indeed, little is known about the species composition and carbon storage in these green spaces, or how urban natural area forests compared with similar rural forests. 2. Here, we use data collected by the Forests in Cities network to quantify carbon stored in urban natural area forests acros...AuthorsFiona Jevon, Crystal A. Crown, Jeffrey A. G. Clark, Danica A. Doroski, Lindsay Darling, Nancy Sonti, Ian D. Yesilonis, Grace Dietsch, Mark Bradford, Clara C. PregitzerKeywordsSourceJournal of Applied EcologyYear2025