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Displaying 281 - 290 of 6,852 Publications
- Monitoring provides the foundation for evaluating recovery of endangered species, yet many species lack monitoring programs designed to integrate a species’ unique attributes, specific monitoring objectives, and principles of statistical sampling theory. We developed a framework for monitoring and assessment of endangered light-footed Ridgway’s rails (Rallus obsoletus levipes) across their U.S. range, relative to multi-scale recovery goals. We created spatially explicit sample units and a sampling frame covering all potential habitat to facilitate range-wide probability sampling, and also...AuthorsBryan Stevens, Courtney J. Conway, Kimberly A. Sawyer, Lauren Kershek, Giselle Block, Sandra Hamilton, Rebecca KolstromKeywordsSourceBiodiversity and Conservation. 6: e239.Year2024
- Headwater streams are reliant on riparian tree leaf litterfall to fuel brown food webs. Terrestrial agents like herbivores and contaminants can alter plant growth, litter production, litter quality, and the timing of litterfall into streams, influencing aspects of the brown food web. At Mount St. Helens (USA), early successional streams are developing willow (Salix sitchensis) riparian zones. The willows are attacked by stem-boring herbivores, altering litter quality and the timing of litterfall. Within a established experimental plots, willows (male and female plants) were protected from...AuthorsCarri J. LeRoy, Sabrina J. Heitmann, Madeline A. Thompson, Iris J. Garthwaite, Angie M. Froedin-Morgensen, Sorrel Hartford, Brandy K. Kamakawiwo’ole, Lauren J. Thompson, Joy M. Ramstack Hobbs, Shannon Claeson, Rebecca C. Evans, John G. Bishop, Posy E. BusbyKeywordsSourceForests. 15(8): 1282.Year2024
- Amphibians face many challenges in their conservation, including threats from emerging infectious pathogens/parasites and habitat degradation. In diverse amphibian communities, where multiple emerging pathogens tend to co-occur, we know little about how the structural partitioning of host specificity impacts population maintenance despite disease. Here, we used field data from amphibian communities in north Florida to investigate host-specific traits influencing the prevalence, intensity, and transmission of three emerging pathogens of amphibians: Batrachochytrium dendrobatidis (Bd),...AuthorsArik M. Hartmann, Kimberly Sash, E. Pierson Hill, Natalie M. Claunch, Max Maddox, Sarah McGrath-Blaser, Cory C. McKinstry, Robert J. Ossiboff, Ana V LongoSourceBiological Conservation. 296: 110685.Year2024
- Camera traps deployed with olfactory attractants are used to survey rare and elusive carnivores. Study areas with deep snowpack and rugged terrain present challenges and risks to field personnel, who traditionally must revisit camera stations regularly to refresh attractants. In such locations, alternative overwinter survey protocols that include a persistent attractant would improve both the safety and efficiency of camera-trap surveys. We present a protocol for installing camera traps and automated scent dispensers on trees at above-average maximum snow depth to eliminate the need for...AuthorsRobert A. Long, Paula MacKay, Joel D. Sauder, Mike Sinclair, Keith B. Aubry, Catherine M. RaleyKeywordsSourceEcology and Evolution. 14(5): e11290.Year2024
- Introduction: Habitat loss and degradation pose significant threats to global fish and wildlife populations, prompting substantial investments in habitat creation and restoration efforts. Not all habitats provide equal benefits, leading to challenges in prioritizing restoration actions. For example, juvenile anadromous salmonids require high quality rearing aquatic habitats to achieve the physiological requirements needed to successfully migrate to the ocean. However, there are profound disagreements among anadromous salmon restoration managers whether it is best to focus efforts on...AuthorsJames T. Peterson, Adam DuarteKeywordsSourceFrontiers in Conservation Science. 5:1428697.Year2024
- Managers invest substantial resources to promote recovery of declining anadromous fish stocks. Recovery strategies are manifold and often include management actions intended to stimulate somatic growth, increase in-river survival, and motivate juvenile outmigration during favorable environmental conditions. Evaluating the efficacy of these management actions is difficult, however, because monitoring data that explicitly track individuals from egg deposition to juvenile outmigration are typically lacking. We developed an integrated population model that links two different and often...AuthorsPatti J. Wohner, Adam Duarte, James T. PetersonKeywordsSourceEcological Modelling. 495(1): 110780.Year2024
- Wildfire activity throughout western North America is increasing which can have important consequences for species persistence. Native species have evolved disturbance-adapted traits that confer resilience to natural disturbance provided disturbances operate within their historical range of variability. This resilience can erode as disturbance regimes change and begin operating outside this range. We assessed wildfire impacts during 1987–2018 on the northern spotted owl, an imperiled species with complex relationships with late and early seral forest in the Pacific Northwest, USA. We...AuthorsJeremy T. Rockweit, Katie M. Dugger, Damon B. Lesmeister, Raymond J. Davis, Alan B. Franklin, J. Mark. HigleyKeywordsSourceBiological Conservation. 296: 110701.Year2024
- 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