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- Forest change affects the relative magnitudes of hydrologic fluxes such as evapotranspiration (ET) and streamflow. However, much is unknown about the sensitivity of streamflow response to forest disturbance and recovery. Several physically based models recognize the different influences that overstory versus understory canopies exert on hydrologic processes, yet most input datasets consist of total leaf area index (LAI) rather than individual canopy strata. Here, we developed stratum-specific LAI datasets with the intent of improving the representation of vegetation for ecohydrologic...AuthorsSara A. Goeking, David G. TarbotonSourceWater. 14: 2414.Year2022
- Metrosideros polymorpha, Hawaiian common name ‘ōhi‘a, is the dominant tree of Hawaiian forests, comprising 80% of the native forests and 50% of all forests in the state (Owen et al., in press; US Department of Agriculture Forest Service, n.d.). ‘Ōhi‘a trees contain 41% of all live-tree carbon sequestered on these islands (Owen et al., in press; US Department of Agriculture Forest Service, n.d.). Many ‘ōhi‘a forests are almost monospecific in the canopy, although they support a diverse and largely endemic understory. ‘Ōhi‘a is one of the first woody species to colonize new lava flows and...AuthorsPhilip Cannon, James B. Friday, Thomas Harrington, Lisa Keith, Marc Hughes, Rob Hauff, Flint F. Hughes, Ryan Perroy, David Benitez, Kylle Roy, Robert Peck, Sheri Smith, Blaine Luiz, Susan Cordell, Christian P. Giardina, Jennifer Juzwik, Stephanie Yelenik, Zachary CookKeywordsSourceForest Microbiology. 2: 267-289.Year2022
- The use of biomass from forests by humans has been practiced since the dawn of time. Such practices have resulted in severe watershed degradation historically and in today’s world. As modern society seeks alternative energy sources, they are once again turning to forests, but now use mechanized harvesting systems to remove the biomass and transport it to processing or utilization sites. This study investigated the impacts of different mechanized biomass operations on sediment displacement, soil hydraulic conductivity, and canopy interception to determine if severe watershed impacts...AuthorsWilliam J. Elliot, Hakjun RheeKeywordsSourceTrees, Forests and People. 7: 100186.Year2022
- Several plant traits are associated with resistance to fire, thus fire-resistant species may give rise to more fire-resistant landscapes. However, upscaling from plant traits to landscape- and regional-scale fire effects remains a challenge.AuthorsJose V Moris, Matthew J. Reilly, Zhiqiang Yang, Warren B. Cohen, Renzo Motta, Davide AscolKeywordsSourceLandscape Ecology. 37: 2149-2164.Year2022
- New approaches to managing climate change uncertainty rely on integrating innovative forest management practices with adaptive management techniques and robust decision-support strategies. Forest management alternatives for a changing climate can enhance ecosystem health and sustainability while ensuring the flow of ecosystem services, such as water, wildlife, biodiversity, recreation, and ecosystem resilience. Ideally, these methods will help reverse the decline in ecosystem function from associated ecological disturbances, such as drought, wildfire, insects, diseases, or invasive...AuthorsCarlos Rodriguez Franco, Deborah S. Page-Dumroese, James ArchuletaKeywordsSourceJournal of Soil and Water Conservation. 77(4): 60A-64A.Year2022
- Soil physical and chemical properties play important roles in mass loss during soil-block tests but the relationship between soil properties and the decay caused by brown-rot and white-rot fungi remains unclear. The objective of this study was to investigate the soil effects on the decay resistance of pine (Pinus spp.) and poplar (Liriodendron tulipifera L.) blocks. The properties of soil from nine different sources (six from Idaho, one from Mississippi, one from Wisconsin, and one from Oregon) were characterized for soil texture, sieved bulk density, water-holding capacity, pH, organic...AuthorsChi-Jui (Barry) Kuo, Mark Kimsey, Deborah S. Page-Dumroese, Grant Kirker, Audrey Qiuyan Fu, Lili CaiKeywordsSourceForest Products Journal. 72(3): 140-146.Year2022
- We (Jacobs et al. 2021) analyzed an extensive 21- year data set of Chinook Salmon Oncorhynchus tshawytscha redd locations to (1) explain covariation between redd occurrence and environmental variables in the Middle Fork Salmon River (MFSR) and (2) leverage these relationships to predict changes in Chinook Salmon spawning habitat distribution under future climate scenarios. We have since discovered a small but consequential error in the process we used for applying future climate scenarios to our redd occurrence model in pursuit of our second objective: to predict the response of Chinook...AuthorsGregory R. Jacobs, Russ F. Thurow, John M. Buffington, Daniel J. Isaak, Seth J. WengerKeywordsSourceTransactions of the American Fisheries Society. 151: 390-395.Year2022
- Climate change threatens biodiversity through global alteration of habitats, but efficient conservation responses are often hindered by imprecise downscaling of impacts. Besides thermal effects, warming also drives important ancillary environmental changes, such as when river hydrology evolves in response to climate forcing. Earlier snowmelt runoff and summer flow declines are broadly manifested in snowdependent regions and relevant to socioeconomically important cold-water fishes. Here, we mechanistically quantify how climate-induced summer flow declines during historical and future...AuthorsDaniele Tonina, James A. McKean, Daniel J. Isaak, Rohan M. Benjankar, Chunling Tang, Qiuwen ChenKeywordsSourceGeophysical Research Letters. 49: e2022GL098552.Year2022
- Lewis flax (Linum lewisii) is widely distributed across western North America and is currently used in native ecosystem restoration. There is also growing interest in de novo domestication of Lewis flax as a perennial oilseed crop. To better understand this species and facilitate both restoration and domestication, we used common gardens to assess biogeographical variation in a variety of seed and growth traits from 37 flax accessions, consisting of 35 wild populations from the Intermountain West region, the pre-variety germplasm Maple Grove (L. lewisii) and the cultivar ‘Appar’ (L....AuthorsPeter Innes, Andre Gossweiler, Scott L. Jensen, Derek Tilley, Loren St. John, Thomas Jones, Stanley G. Kitchen, Brent S. HulkeKeywordsSourceAoB PLANTS. 14(2): plac005.Year2022
- Fire regimes in North American forests are diverse and modern fire records are often too short to capture important patterns, trends, feedbacks, and drivers of variability. Tree-ring fire scars provide valuable perspectives on fire regimes, including centuries-long records of fire year, season, frequency, severity, and size. Here, we introduce the newly compiled North American tree-ring fire-scar network (NAFSN), which contains 2562 sites, > 37,000 fire-scarred trees, and covers large parts of North America. We investigate the NAFSN in terms of geography, sample depth, vegetation, topograph...AuthorsDavid W. Huffman, Jose Iniguez, Kurt F. Kipfmueller, Stanley G. Kitchen, Keith Lombardo, Donald McKenzie, Andrew G. Merschel, Kerry L. Metlen, Jesse Minor, Christopher D. O'Connor, Laura Platt, William J. Platt, Thomas Saladyga, Amanda B. Stan, Scott Stephens, Colleen Sutheimer, Ramzi Touchan, Peter J. Weisberg, Ellis Q. Margolis, Christopher H. Guiterman, Raphael D. Chavardes, Jonathan D. Coop, Kelsey Copes-Gerbitz, Denyse A. Dawe, Donald A. Falk, James D. Johnston, Evan Larson, Hang Li, Joseph M. Marschall, Cameron E. Naficy, Adam T. Naito, Marc-Andre Parisien, Sean A. Parks, Jeanne Portier, Helen M. Poulos, Kevin M. Robertson, James H. Speer, Michael Stambaugh, Thomas W. Swetnam, Alan J. Tepley, Ichchha Thapa, Craig D. Allen, Yves Bergeron, Lori D. Daniels, Peter Z. Fule, David Gervais, Martin P. Girardin, Grant L. Harley, Jill E. Harvey, Kira M. Hoffman, Jean M. Huffman, Matthew D. Hurteau, Lane B. Johnson, Charles W. Lafon, Manuel K. Lopez, R. Stockton Maxwell, Jed Meunier, Malcolm P. North, Monica T. Rother, Micah R. Schmidt, Rosemary L. Sherriff, Lauren A. Stachowiak, Alan Taylor, Erana J. Taylor, Valerie Trouet, Miguel L. Villarreal, Larissa L. Yocom, Karen B. Arabas, Alexis H. Arizpe, Dominique Arseneault, Alicia Azpeleta Tarancon, Christopher Baisan, Erica Bigio, Franco Biondi, Gabriel D. Cahalan, Anthony Caprio, Julian Cerano-Paredes, Brandon M. Collins, Daniel C. Dey, Igor Drobyshev, Calvin Farris, M. Adele Fenwick, William Flatley, M. Lisa Floyd, Ze'ev Gedalof, Andres Holz, Lauren F. HowardKeywordsSourceEcosphere. 13: e4159.Year2022