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- Passive acoustic monitoring (PAM) has revolutionized wildlife monitoring by lowering barriers associated with data collection. Data from PAM can support adaptive management programs aimed at meeting multiple objectives in the face of uncertainty. Pairing PAM with acoustic classifiers capable of identifying sounds produced by wildlife can generate thousands of species detections across managed landscapes. However, such species detections represent both true- and false-positive detections, and human review is required to generate accurate detection data. Although collecting audio recordings...AuthorsBen J. Vernasco, Adam Duarte, Matthew J. Weldy, Savannah Finch, Jamie RatliffKeywordsSourceGen. Tech. Rep. PNW-GTR-1039. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 54 p.Year2025
- Managers grappling with questions about dead wood in productive, often high-volume, westside Pacific Northwest forests seek to balance wildlife habitat quality and fire hazard reduction, especially following wildfires which can both consume and generate exceptional quantities of dead wood. Longitudinal analysis of a large (n = 327) sample of permanent forest inventory monitoring plots measured before and repeatedly after wildfires and an equal-sized sample of comparable but unburned reference plots revealed post-fire trajectories of dead wood and factors that drive abundance of snags,...AuthorsOriana “Ori” Chafe, Jeremy S. FriedSourceForest Ecology and Management. 595: 123003.Year2025
- Community-based collaboration has been touted as an effective model for forest governance because it promotes democratized decision-making and stakeholder engagement to address landscape-scale problems. Forest collaboratives are assumed to be heterogeneous, consisting of stakeholders with a diverse range of interests. Few studies have systematically explored variables associated with collaborative composition. We identify six elements of collaborative composition for investigation: size, stakeholder diversity, balance, locality–diversity, core attendance, and cross-participation. This...AuthorsLee K. Cerveny, Rebecca J. McLain, Kristen WrightSourceForests. 16(6): 1022.Year2025
- (1) Background: Analyses using participatory GIS (PGIS) data have primarily focused on reporting landscape values (e.g., subsistence, spiritual) or activities (e.g., hunting, meditation) and less frequently on identifying patterns of value and activity co-occurrence. This paper explores whether consistent combinations of landscape values and activities associated with meaningful places identified by visitors—referred to as “bundles”—emerge across protected areas. These bundles represent the cognitive-behavioral components of sense of place. (2) Methods: We used exploratory factor analysis...AuthorsJackie Delie, Kelly Biedenweg, Lee K. CervenyKeywordsSourceJournal of Parks. 1(1): 3.Year2025
- Wildfires have the potential to profoundly alter forest structure, which can leave land managers with severe information gaps when making post-fire forest management decisions. We assess point clouds derived from aerial lidar (16.8 points/m²) and digital aerial photogrammetry (DAP, 13.9 points/m²) for the purposes of generating post-fire forest attribute maps using 82 permanent field plots. Low-cost aerial lidar and DAP data can enable predictive mapping after fires occur, and an assessment of the utility of DAP in this context is warranted given its lower cost. We evaluated the performance...AuthorsBryce Frank, Jacob L. Strunk, Jeremy S. Fried, Karin Wolken, Sean C. McKenzieKeywordsSourceEcology and Management. 595: 123002.Year2025
Opportunities to better integrate inland fish and fisheries in multilateral environmental agreements
Inland fish and fisheries are globally important to environmental function and human services, yet their persistent lack of recognition in global agreements, especially multilateral environmental agreements (MEAs), may hinder progress towards biodiversity conservation and human well-being. The connection between inland fish, fisheries, and their ecosystems means that addressing the needs of fish directly offers opportunities to meet multiple global commitments and provide indicators of progress towards many global goals. In this perspective, we highlight opportunities to better integrate...AuthorsAbigail J. Lynch, Devin Bartley, T. Douglas Beard Jr, Gabriel Borba, Steven J. Cooke, Ian G. Cowx, Vittoria Elliott, Holly Embke, Edith Gondwe, Zeb Hogan, Jonathan G. Low, Jamie C. Madden, Sui Phang, Emma D. Rice, Nicholas Sievert, Gretchen L. Stokes, Leonard Akwany, Edward H. Allison, Robert Arlinghaus, Robert Arthur, Vidyadhar Atkore, Mahatub Khan Badhon, Claudio Baigun, Jill L. Brooks, Leandro Castello, Somvilay Chanthalounnavong, Seila Chea, Soksan Chhorn, Michael S. Cooperman, Kim Crisafi, James Dalton, V Doughty, Jason Earl, Wasseem Emam, Rebecca Flitcroft, Daria Gundermann, Henry H. Hansen, Ian Harrison, Kathy Hughes, Külli Kangur, Ted Lawrence, Roman Lyach, Bonnie J.E. Myers, Muruganandam Muthiah, Nguyen Thi Kim Quyen, Vivian M. Nguyen, Elizabeth A. Nyboer, Julian D. Olden, Craig Paukert, Morgan L. Piczak, Yasmín Quintana, Vu Dang Ha Quyen, Shehu Latunji Akintola, Roshani Shrestha, Sokmoly Uon, Sophorn Uy, Cassie M. VanWynenKeywordsSourceEnvironmental Science & Policy. 171: 104089.Year2025- Critical flow theory provides a physical foundation for inferring discharge from measurements of wavelength and channel width made from images. In rivers with hydraulically steep local slopes greater than ∼0.01, flow velocities are high and the Froude number Fr (ratio of inertial to gravitational forces) can approach 1.0 (critical flow) or greater. Under these conditions, undular hydraulic jumps (UHJ's) can form as standing wave trains at slope transitions or constrictions. The presence of UHJ's indicates that mean Fr ≈ 1, implying that the velocity and depth of the flow and the spacing of...AuthorsCarl J. Legleiter, Gordon Grant, Inhyeok Bae, Becky Fasth, Elowyn Yager, Daniel C. White, Laura Hempel, Merritt E. Harlan, Christina Leonard, Robert DudleyKeywordsSourceGeophysical Research Letters. 52(9): e2025GL114851.Year2025
- Hydrologists commonly use climate metrics to understand watershed function and streamflow response due to their widespread availability and effectiveness in hydrologic models used to predict streamflow. This is particularly true in research aimed at characterising how streamflow response varies under changing climate conditions. In semi-arid to arid environments, researchers typically hypothesise that in drier, warmer years, vegetation and streamflow are in direct competition for stored water. Conceptual models suggest that seasonal plant water use and evapotranspiration (ET) can ultimately...AuthorsAnna Bergstrom, Adam N. Price, Mac Beers, Kevin R. RocheKeywordsSourceHydrological Processes. 39(6): e70167.Year2025
- Bees are essential pollinators in many natural and agricultural systems and declines of some species are well-documented. Threats to bees include habitat loss and degradation and uncertainty remains about how management practices influence bee communities. Globally, ungulates are common in many systems and though numerous studies have examined livestock effects on bees, native ungulate effects on bees are poorly studied. In the western US, two native ungulates, deer (Odocoileus spp.) and elk (Cervus canadensis), are widespread and may occupy large annual home ranges. Public land managers...AuthorsSandra J. DeBano, Mary M. Rowland, Samantha M. Roof, Skyler Burrows, Joshua P. AverettKeywordsSourceGlobal Ecology and Conservation. 61(108): e03661.Year2025
- Developing conservation strategies for species vulnerable to the effects of climate change, like polar bears (Ursus maritimus), can be challenging given the uncertainty of future environmental conditions. Effective conservation planning requires identifying and ranking threats to the persistence of polar bears throughout their circumpolar range and then assessing the ability of mitigative actions to aid in meeting plan objectives. We used a Bayesian network model to (1) characterize the relative importance of multiple biotic and anthropogenic stressors on four ecoregional polar bear...AuthorsTodd C. Atwood, Bruce G. Marcot, David C. Douglas, Jeffrey F. Bromaghin, Anthony M. PaganoKeywordsSourceEcosphere. 16(6): e70316.Year2025