Publications
Filter Total Items: 2066
Disentangling the effects of climate and landscape change on bird population trends in the western U.S. and Canada Disentangling the effects of climate and landscape change on bird population trends in the western U.S. and Canada
Changes in climate are often assumed result in changes to species’ ranges, with potential impacts on natural system functioning and ecosystem services. ‘Climate envelope models’, which rely on correlations between climate and species distributions, have been used to predict the future of biodiversity under these assumptions. However, other factors including land-cover, dispersal ability...
Authors
Matthew G. Betts, Susan Shirley, Joan Hagar
Network analysis reveals multiscale controls on streamwater chemistry Network analysis reveals multiscale controls on streamwater chemistry
By coupling synoptic data from a basin-wide assessment of streamwater chemistry with network-based geostatistical analysis, we show that spatial processes differentially affect biogeochemical condition and pattern across a headwater stream network. We analyzed a high-resolution dataset consisting of 664 water samples collected every 100 m throughout 32 tributaries in an entire fifth...
Authors
Kevin J. McGuire, Christian E. Torgersen, Gene E. Likens, Donald C. Buso, Winsor H. Lowe, Scott W. Bailey
Ecological and evolutionary patterns of freshwater maturation in Pacific and Atlantic salmonines Ecological and evolutionary patterns of freshwater maturation in Pacific and Atlantic salmonines
Reproductive tactics and migratory strategies in Pacific and Atlantic salmonines are inextricably linked through the effects of migration (or lack thereof) on age and size at maturity. In this review, we focus on the ecological and evolutionary patterns of freshwater maturation in salmonines, a key process resulting in the diversification of their life histories. We demonstrate that the...
Authors
Matthew R. Sloat, Dylan J. Fraser, Jason B. Dunham, Jeffery A. Falke, Chris E. Jordan, John R. McMillan, Haley A. Ohms
Mercury exposure associated with altered plasma thyroid hormones in the declining western pond turtle (Emys marmorata) from California mountain streams Mercury exposure associated with altered plasma thyroid hormones in the declining western pond turtle (Emys marmorata) from California mountain streams
Mercury (Hg) is a global threat to wildlife health that can impair many physiological processes. Mercury has well-documented endocrine activity; however, little work on the effects of Hg on the thyroid hormones triiodothyronine (T3) and thyroxine (T4) in aquatic wildlife exists despite the fact that it is a sensitive endpoint of contaminant exposure. An emerging body of evidence points...
Authors
Erik Meyer, Collin A. Eagles-Smith, Donald Sparling, Steve Blumenshine
The interactive effects of climate change, riparian management, and a non-native predators on stream-rearing salmon The interactive effects of climate change, riparian management, and a non-native predators on stream-rearing salmon
Predicting how climate change is likely to interact with myriad other stressors that threaten species of conservation concern is an essential challenge in aquatic ecosystems. This study provides a framework to accomplish this task in salmon-bearing streams of the northwestern United States, where land-use related reductions in riparian shading have caused changes in stream thermal...
Authors
David J. Lawrence, Ben Stewart-Koster, Julian D. Olden, Aaron S. Ruesch, Christian E. Torgersen, Joshua J. Lawler, Don P. Butcher, Julia K. Crown
Differential invasion success of salmonids in southern Chile: patterns and hypotheses Differential invasion success of salmonids in southern Chile: patterns and hypotheses
Biological invasions create complex ecological and societal issues worldwide. Most of the knowledge about invasions comes only from successful invaders, but less is known about which processes determine the differential success of invasions. In this review, we develop a framework to identify the main dimensions driving the success and failure of invaders, including human influences
Authors
Ivan Arismendi, Brooke E. Penaluna, Jason B. Dunham, Carlos García de Leaniz, Doris Soto, Ian A. Fleming, Daniel Gomez-Uchidam, Gonzalo Gajardo, Pamela V. Vargas, Jorge Leon-Munoz
Region-wide ecological responses of arid Wyoming big sagebrush communities to fuel treatments Region-wide ecological responses of arid Wyoming big sagebrush communities to fuel treatments
If arid sagebrush ecosystems lack resilience to disturbances or resistance to annual invasives, then alternative successional states dominated by annual invasives, especially cheatgrass (Bromus tectorum L.), are likely after fuel treatments. We identified six Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis Beetle & Young) locations (152–381 mm precipitation) that we...
Authors
David A. Pyke, Scott E. Shaff, Andrew I. Lindgren, Eugene W. Schupp, Paul S. Doescher, Jeanne C. Chambers, Jeffrey S. Burnham, Manuela M. Huso
Successes and challenges from formation to implementation of eleven broad-extent conservation programs Successes and challenges from formation to implementation of eleven broad-extent conservation programs
Integration of conservation partnerships across geographic, biological, and administrative boundaries is increasingly relevant because drivers of change, such as climate shifts, transcend these boundaries. We explored successes and challenges of established conservation programs that span multiple watersheds and consider both social and ecological concerns. We asked representatives from...
Authors
Erik A. Beever, John B. Bradford, Matthew J. Germino, Brady J. Mattsson, Max Post van der Burg, Mark Brunson
Quantifying restoration effectiveness using multi-scale habitat models: implications for sage-grouse in the Great Basin Quantifying restoration effectiveness using multi-scale habitat models: implications for sage-grouse in the Great Basin
A recurrent challenge in the conservation of wide-ranging, imperiled species is understanding which habitats to protect and whether we are capable of restoring degraded landscapes. For Greater Sage-grouse (Centrocercus urophasianus), a species of conservation concern in the western United States, we approached this problem by developing multi-scale empirical models of occupancy in 211...
Authors
Robert S. Arkle, David S. Pilliod, Steven E. Hanser, Matthew L. Brooks, Jeanne C. Chambers, James B. Grace, Kevin C. Knutson, David A. Pyke, Justin L. Welty
Accounting for unsearched areas in estimating wind turbine-caused fatality Accounting for unsearched areas in estimating wind turbine-caused fatality
With wind energy production expanding rapidly, concerns about turbine-induced bird and bat fatality have grown and the demand for accurate estimation of fatality is increasing. Estimation typically involves counting carcasses observed below turbines and adjusting counts by estimated detection probabilities. Three primary sources of imperfect detection are 1) carcasses fall into...
Authors
Manuela M.P. Huso, Dan Dalthorp
Herbivores and nutrients control grassland plant diversity via light limitation Herbivores and nutrients control grassland plant diversity via light limitation
Human alterations to nutrient cycles and herbivore communities are affecting global biodiversity dramatically. Ecological theory predicts these changes should be strongly counteractive: nutrient addition drives plant species loss through intensified competition for light, whereas herbivores prevent competitive exclusion by increasing ground-level light, particularly in productive systems...
Authors
Elizabeth T. Borer, Eric W. Seabloom, Daniel S. Gruner, W. Stanley Harpole, Helmut Hillebrand, Eric M. Lind, Peter B. Alder, Juan Alberti, T. Michael Anderson, Jonathan D. Bakker, Lori Biederman, Dana Blumenthal, Cynthia S. Brown, Lars A. Brudvig, Yvonne M. Buckley, Marc Cadotte, Cheng-Jin Chu, Elsa E. Cleland, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Guozhen Du, Jennifer Firn, Yann Hautier, Robert W. Heckman, Andy Hector, Janneke HilleRisLambers, Oscar Iribarne, Julia A. Klein, Johannes M.H. Knops, Kimberly J. La Pierre, Andrew D.B. Leakey, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, Brent Mortensen, Lydia R. O’Halloran, John L. Orrock, Jesus Pascual, Suzanne M. Prober, David A. Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Ryan J. Williams, Peter D. Wragg, Justin P. Wright, Louie H. Yang
Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data
LiDAR (Light Detection And Ranging) is an emerging remote-sensing tool that can provide fine-scale data describing vertical complexity of vegetation relevant to species that are responsive to forest structure. We used LiDAR data to estimate occupancy probability for the federally threatened marbled murrelet (Brachyramphus marmoratus) in the Oregon Coast Range of the United States. Our...
Authors
Joan C. Hagar, Bianca Eskelson, Patricia K. Haggerty, S. Kim Nelson, David G. Vesely