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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
- Estimating the key demographic parameters of animal populations can enhance our understanding of system dynamics and assist in developing and improving conservation decision–support models. The Rio Grande cooter Pseudemys gorzugi is a conservation reliant freshwater turtle native to lower Rio Grande River Basin (USA and Mexico), with limited knowledge regarding its natural history and population dynamics. In this study, we used seven years of capture–mark–recapture data from the northern edge of the species’ range to estimate survival probabilities, changes in abundance, and the probability...AuthorsIvana Mali, Adam DuarteKeywordsSourceWildlife Biology. 2025(3): e01355.Year2025
- Validation studies of the Forest Vegetation Simulator (FVS), a stand projection model widely used to predict carbon outcomes of alternative forest management strategies, have found departures from observed forest growth for several FVS variants in the western USA. We evaluated the accuracy of stand-level biomass accumulation predicted by FVS across an environmental gradient represented by three > 2 million ha landscapes that overlap seven FVS variants in Oregon, USA and the extent to which commonly deployed calibrations could correct for any departures. Calibrations included: growth...AuthorsDaniel Swann, Jeremy S. Fried, Andrew GrayKeywordsSourceForest Ecology and Management. 594(3): 122937.Year2025
- This report updates estimates presented in Forest Resources of the Tanana Unit, Alaska: 2018 (Cahoon and Baer 2022) from forests in the Tanana unit of the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis (FIA) interior Alaska inventory. In September 2023, the FIA program published a new modeling system for predicting tree volume, biomass, and carbon attributes called the National Scale Volume and Biomass (NSVB) framework. The new equations provide a more consistent and accurate accounting of structural components of trees across the United States. The FIA...AuthorsSarah Ellison, Olaf KueglerKeywordsSourceGen. Tech. Rep. PNW-GTR-1038. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 69 p. (Online Only).Year2025
- This essay examines the important roles of growth and yield models in forest management decision-making in the Pacific Northwest United States. It outlines how these models help managers evaluate and optimize forest productivity on commercial timberlands by incorporating site indices, growth responses to silvicultural treatments like thinning, fertilization, and vegetation control, the potential impacts of climate change, and other factors. The essay reflects on how growth and yield models help forest managers optimize stand development, balance multiple objectives, and adapt to changing...AuthorsSukhyun Joo, Hailemariam Temesgen, Bryce Frank, Aaron R. Weiskittel, Don ReimerKeywordsSourceJournal of Forestry. 123(5): 593-627.Year2025
- Mechanical thinning is often prescribed in dry coniferous forests to reduce stand density, ladder fuels, and canopy fuels before using prescribed burning to manage surface fuels. Mechanical mastication is a tool for thinning forests where commercial thinning is not viable. We evaluated the effects of mastication-based thinning – with and without subsequent prescribed burning – on forest structure and fuels in dry coniferous forests of the Pacific Northwest, USA. We thinned stands by masticating small-diameter trees and depositing the resulting slash on the forest floor. We then used...AuthorsDavid W. Peterson, Richy J. Harrod, Erich Dodson, Peter L. Ohlson, Natalie C. Pawlikowski, Kathryn Ireland, Roger D. OttmarSourceForest Ecology and Management. 593(8): 122909.Year2025