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- Understanding relationships between environmental characteristics and variation in species occurrence and density can provide information for managing human activities, protected species, and species of commercial importance in a dynamic system. To identify environmental drivers associated with variation in harbor seal (Phoca vitulina) densities in the Salish Sea, Washington, we analyzed 20 years of boat-based survey data and environmental covariates using a hierarchical distance sampling model. We included spatial, temporal, and spatiotemporal environmental covariates in our model and...AuthorsJamie L. Brusa, Scott F. Pearson, Martin G. Raphael, Beth GardnerKeywordsSourceMarine Mammal Science. 107(3): e13155.Year2024
- Quantitative wildfire risk assessments increasingly are used to prioritize areas for investments in wildfire risk mitigation actions. However, current assessments of wildfire risk derived from fire models built primarily on biophysical data do not account for socioeconomic contexts that influence community vulnerability to wildfire. Research indicates that despite accounting for only a small proportion of high wildfire hazard areas, communities with fewer socioeconomic resources to devote to wildfire prevention and response may experience outsized exposure and impacts. We examined the...AuthorsCaitlyn Reilley, Christopher Dunn, Mindy Crandall, Jeffrey D. KlineKeywordsSourceEnvironmental Research Letters. 19(9): 094053.Year2024
- We analysed data from 25 mammal species recorded by camera traps at 6645 locations across the conterminous United States in a joint modelling framework to estimate relative abundance of each species. We then used a clustering analysis to describe 8 broad and 16 narrow mammal communities. Climate was the most important predictor of mammal abundance overall, while human population density and agriculture were less important, with mixed effects across species. Seed production by forests also predicted mammal abundance, especially hard-mast tree species. The mammal community maps are similar...AuthorsRoland Kays, Matthew H. Snider, George Hess, Michael V Cove, Alex Jensen, Hila Shamon, William J. McShea, Brigit Rooney, Maximilian L. Allen, Charles E. Pekins, Christopher C. Wilmers, Mary E. Pendergast, Austin M. Green, Justin Suraci, Matthew S. Leslie, Sophie Nasrallah, Dan Farkas, Mark Jordan, Melissa Grigione, Michael C. LaScaleia, Miranda L. Davis, Chris Hansen, Josh Millspaugh, Jesse S. Lewis, Michael Havrda, Robert Long, Kathryn R. Remine, Kodi J. Jaspers, Diana J. R. Lafferty, Tru Hubbard, Colin E. Studds, Erika L. Barthelmess, Katherine Andy, Andrea Romero, Brian J. O'Neill, Melissa T. R. Hawkins, Jason V Lombardi, Maksim Sergeyev, M. Caitlin Fisher‐Reid, Michael S. Rentz, Christopher Nagy, Jon M. Davenport, Christine C. Rega‐Brodsky, Cara L. Appel, Damon B. Lesmeister, Sean T. Giery, Christopher A. Whittier, Jesse M. Alston, Chris Sutherland, Christopher Rota, Thomas Murphy, Thomas E. Lee, Alessio Mortelliti, Dylan L. Bergman, Justin A. Compton, Brian D. Gerber, Jess Burr, Kylie Rezendes, Brett A. DeGregorio, Nathaniel H. Wehr, John F. Benson, M. Teague O'Mara, David S. Jachowski, Morgan Gray, Dean E. Beyer, Jerrold L. Belant, Robert V Horan, Robert C. Lonsinger, Kellie M. Kuhn, Steven C. M. Hasstedt, Marketa Zimova, Sophie M. Moore, Daniel J. Herrera, Sarah Fritts, Andrew J. Edelman, Elizabeth A. Flaherty, Tyler R. Petroelje, Sean A. Neiswenter, Derek R. Risch, Fabiola Iannarilli, Marius van der Merwe, Sean P. Maher, Zach J. Farris, Stephen L. Webb, David S. Mason, Marcus A. Lashley, Andrew M. Wilson, John P. Vanek, Samuel R. Wehr, L. Mike Conner, James C. Beasley, Carolina Baruzzi, Susan N. Ellis‐Felege, Mike D. Proctor, Jan Schipper, Katherine C. B. Weiss, Andrea K. Darracq, Evan G. Barr, Peter D. Alexander, Çağan H. Şekercioğlu, Daniel A. Bogan, Christopher Schalk, Jean E. Fantle‐Lepczyk, Christopher A. Lepczyk, Scott LaPoint, Helen L. Bontrager, Laura S. Whipple, Helen Ivy Rowe, Kayleigh Mullen, Tori Bird, Adam Zorn, LaRoy Brandt, Richard G. Lathrop, Craig McCain, Anthony P. Crupi, James Clark, Arielle ParsonsSourceDiversity and Distributions. 30(9): e13900.Year2024
- In 2015, the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis program collected forest and tree measurements from 37 plots among three forest communities on the islands of Rota, Saipan, and Tinian in the Commonwealth of the Northern Mariana Islands (CNMI). A total of 36 tree species and 132 dominant vascular plant species were recorded, including 28 invasive species. Invasive plant species covered most of the forest area, and 9 of the top 20 most dominant nontree plant species were invasive. The small tree Leucaena leucocephala (tångantångan), comprising by far...AuthorsJulian Dendy, Olaf Kuegler, Ashley Lehman, Victor D. GuerreroSourceGen. Tech. Rep. PNW-GTR-1028. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 38 p.Year2024
- Hunting is a popular recreational pursuit that can provide social, economic, and ecological benefits. It also serves as a primary tool for managing deer and elk populations. Yet hunter behavior—how different types of hunters (elk vs deer, rifle vs archery) use landscapes and the factors that influence hunting success—is seldom quantified. Scientists at the Starkey Experimental Forest and Range collected real-time data from tracking units worn by hunters to better understand their movements as well as how deer and elk respond to their presence. They found that hunters used a small portion...AuthorsSylvia Kantor, Mary M. Rowland, Michael Wisdom, Darren ClarkSourceScience Findings 269. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p.Year2024
- Arthropods contribute importantly to ecosystem functioning but remain understudied. This undermines the validity of conservation decisions. Modern methods are now making arthropods easier to study, since arthropods can be mass-trapped, mass-identified, and semi-mass-quantified into ‘many-row (observation), many-column (species)‘datasets, with homogeneous error, high resolution, and copious environmental-covariate information. These ‘novel community data sets’ let us efficiently generate information on arthropod species distributions, conservation values, uncertainty, and the magnitude and...AuthorsYuanheng Li, Christian Devenish, Marie I Tosa, Mingjie Luo, David M. Bell, Damon B. Lesmeister, Paul Greenfield, Maximilian Pichler, Taal Levi, Douglas W. YuKeywordsSourcePhilosophical Transactions of the Royal Society B: Biological Sciences. 379(1904): e37986.Year2024
- Climate warming poses challenges to native fish, particularly at high latitudes. We used incubation models to explore how interactions between spawning timing and daily varying water temperature affected emergence timing for five species of Pacific salmon in 33 thermally diverse streams in south-central Alaska. Interactions between spawning timing and stream thermal regime led to three different emergence timing responses: (1) “expanded” by typically 2–3 times the duration of the spawning window for summer spawning salmon at streams with a large annual water temperature range; (2) “equal”...AuthorsLuca A. Adelfio, Steve Wondzell, Nathan J. Mantua, Gordon ReevesSourceCanadian Journal of Fisheries and Aquatic Sciences. 81(5): 573-588.Year2024
- Many studies have identified an association between exposure to the natural environment and improved public-health outcomes. However, much of this observational work lacks a theoretical foundation, so we look to the humanities for a stronger basis for green-health research, examining how trees have been used as religious metaphors and symbols for health and wellbeing. In particular, the tree of life, sacred trees, and other religious symbols provide a promising theoretical basis for green-health research. Based on this review, we propose the value of incorporating attributes such as...AuthorsGeoffrey Donovan, Monika Derrien, Kendra Wendel, Yvonne L. MichaelKeywordsSourceHeliyon. 10(15): e35111.Year2024
- The full-scale Russian invasion of Ukraine in 2022 has had a dramatic impact on Ukrainian forestry and forest resources. In this situation, the ability of the National Forest Inventory (NFI) to update forest information at the state level is very limited due to the large territory which is inaccessible for field data collection. This study presents an approach for the combined use of different sources of field observations and remotely-sensed forest vegetation imagery to produce a time series (TS) to characterize forest conditions and changes across Ukraine. First, we created a forest...AuthorsViktor Myroniuk, Axel Weinreich, Vincent von Dosky, Viktor Melnychenko, Andrii Shamrai, Maksym Matsala, Matthew J. Gregory, David M. Bell, Raymond DavisKeywordsSourceForest Ecology and Management. 569(10): 122156.Year2024
- The effects of timber harvest practices and climate change have altered forest ecosystems in southeast Alaska. However, quantification of patterns and trends in stream habitats associated with these forests is limited owing to a paucity of data available in remote watersheds. Here, we analyzed a 30-year dataset from southeast Alaska’s Tongass National Forest to understand how these factors shape stream habitats. First, we examined differences between broad management classes (i.e., harvested and non-harvested) that have been used to guide stream channel restoration goals. Second, we...AuthorsMichael J. Moore J., Rebecca Flitcroft, Emil Tucker, Katherine M. Prussian, Shannon Claeson, Alejandro Huertas HerreraSourcePLOS ONE. 19(7): e0301723.Year2024