Publications
Filter Total Items: 1990
A review of fire effects on vegetation and soils in the Great Basin region: response and ecological site characteristics
This review synthesizes the state of knowledge on fire effects
on vegetation and soils in semi-arid ecosystems in the Great
Basin Region, including the central and northern Great
Basin and Range, Columbia River Basin, and the Snake
River Plain. We summarize available literature related to:
(1) the effects of environmental gradients, ecological site,
and vegetation characteristics on resilien
Authors
Richard F. Miller, Jeanne C. Chambers, David A. Pyke, Fred B. Pierson, C. Jason Williams
Resilience to stress and disturbance, and resistance to Bromus tectorum L. invasion in cold desert shrublands of western North America
Alien grass invasions in arid and semi-arid ecosystems are resulting in grass–fire cycles and ecosystem-level transformations that severely diminish ecosystem services. Our capacity to address the rapid and complex changes occurring in these ecosystems can be enhanced by developing an understanding of the environmental factors and ecosystem attributes that determine resilience of native ecosystems
Authors
Jeanne C. Chambers, Bethany A. Bradley, Cynthia S. Brown, Carla D'Antonio, Matthew J. Germino, James B. Grace, Stuart P. Hardegree, Richard F. Miller, David A. Pyke
Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness?
Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader richness can indicate invasion resistance by the native community or, alternatively, dominance by a
Authors
Eric Seabloom, Elizabeth Borer, Yvonne Buckley, Elsa E. Cleland, Kendi Davies, Jennifer Firn, W. Stanley Harpole, Yann Hautier, Eric M. Lind, Andrew MacDougall, John L. Orrock, Suzanne M. Prober, Peter Adler, Juan Alberti, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Dana Blumenthal, Cynthia S. Brown, Lars A. Brudvig, Maria Caldeira, Cheng-Jin Chu, Michael J. Crawley, Pedro Daleo, Ellen Ingman Damschen, Carla M. D'Antonio, Nicole M. DeCrappeo, Chris R. Dickman, Guozhen Du, Philip A. Fay, Paul Frater, Daniel S. Gruner, Nicole Hagenah, Andrew Hector, Aveliina Helm, Helmut Hillebrand, Kirsten S. Hofmockel, Hope C. Humphries, Oscar Iribarne, Virginia L. Jin, Adam Kay, Kevin P. Kirkman, Julia A. Klein, Johannes M.H. Knops, Kimberly J. La Pierre, Laura M. Ladwig, G. John, Andrew D.B. Leakey, Qi Li, Wei Li, Rebecca McCulley, Brett Melbourne, E. Charles, Joslin L. Moore, John Morgan, Brent Mortensen, Lydia R. O'Halloran, Meelis Pärtel, Jesús Pascual, David A. Pyke, Anita C. Risch, Roberto Salguero-Gómez, Mahesh Sankaran, Martin Schuetz, Anna Simonsen, Melinda Smith, Carly Stevens, Lauren Sullivan, Glenda M. Wardle, Elizabeth M. Wolkovich, Peter D. Wragg, Justin Wright, Louie Yang
Genetic structure, diversity and subspecies status of Gull-billed Terns (Gelochelidon nilotica) from the United States
Gull-billed Terns (Gelochelidon nilotica) are among the most widespread, yet scarce, Charadriiformes in the world. Two subspecies are recognized in the United States: G. n. aranea breeds along the U.S. Atlantic and Gulf coasts and G. n. vanrossemi breeds in the Salton Sea and San Diego Bay of California. Conservation concerns exist for the species due to its low abundance in the United States and
Authors
Mark P. Miller, Thomas D. Mullins, Susan M. Haig
Monitoring of livestock grazing effects on Bureau of Land Management land
Public land management agencies, such as the Bureau of Land Management (BLM), are charged with managing rangelands throughout the western United States for multiple uses, such as livestock grazing and conservation of sensitive species and their habitats. Monitoring of condition and trends of these rangelands, particularly with respect to effects of livestock grazing, provides critical information
Authors
Kari E. Veblen, David A. Pyke, Cameron L. Aldridge, Michael L. Casazza, Timothy J. Assal, Melissa A. Farinha
A hybrid double-observer sightability model for aerial surveys
Raw counts from aerial surveys make no correction for undetected animals and provide no estimate of precision with which to judge the utility of the counts. Sightability modeling and double-observer (DO) modeling are 2 commonly used approaches to account for detection bias and to estimate precision in aerial surveys. We developed a hybrid DO sightability model (model MH) that uses the strength of
Authors
Paul C. Griffin, Bruce C. Lubow, Kurt J. Jenkins, David J. Vales, Barbara J. Moeller, Mason Reid, Patricia J. Happe, Scott M. Mccorquodale, Michelle J. Tirhi, Jim P. Schaberi, Katherine Beirne
Diel horizontal migration in streams: juvenile fish exploit spatial heterogeneity in thermal and trophic resources
Vertical heterogeneity in the physical characteristics of lakes and oceans is ecologically salient and exploited by a wide range of taxa through diel vertical migration to enhance their growth and survival. Whether analogous behaviors exploit horizontal habitat heterogeneity in streams is largely unknown. We investigated fish movement behavior at daily timescales to explore how individuals integra
Authors
Jonathan B. Armstrong, Daniel E. Schindler, Casey P. Ruff, Gabriel T. Brooks, Kale E. Bentley, Christian E. Torgersen
SSR_pipeline: a bioinformatic infrastructure for identifying microsatellites from paired-end Illumina high-throughput DNA sequencing data
SSR_pipeline is a flexible set of programs designed to efficiently identify simple sequence repeats (e.g., microsatellites) from paired-end high-throughput Illumina DNA sequencing data. The program suite contains 3 analysis modules along with a fourth control module that can automate analyses of large volumes of data. The modules are used to 1) identify the subset of paired-end sequences that pass
Authors
Mark P. Miller, Brian J. Knaus, Thomas D. Mullins, Susan M. Haig
Probabilistic accounting of uncertainty in forecasts of species distributions under climate change
Forecasts of species distributions under future climates are inherently uncertain, but there have been few attempts to describe this uncertainty comprehensively in a probabilistic manner. We developed a Monte Carlo approach that accounts for uncertainty within generalized linear regression models (parameter uncertainty and residual error), uncertainty among competing models (model uncertainty), an
Authors
Seth J. Wenger, Nicholas A. Som, Daniel C. Dauwalter, Daniel J. Isaak, Helen M. Neville, Charles H. Luce, Jason B. Dunham, Michael K. Young, Kurt D. Fausch, Bruce E. Rieman
Evaluating the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at wind turbines
Large numbers of bats are killed by wind turbines worldwide and minimizing fatalities is critically important to bat conservation and acceptance of wind energy development. We implemented a 2-year study testing the effectiveness of an ultrasonic acoustic deterrent for reducing bat fatalities at a wind energy facility in Pennsylvania. We randomly selected control and treatment turbines that were se
Authors
Edward B. Arnett, Cris D. Hein, Michael R. Schirmacher, Manuela M.P. Huso, Joseph M. Szewczak
Decomposition and nitrogen dynamics of 15N-labeled leaf, root, and twig litter in temperate coniferous forests
Litter nutrient dynamics contribute significantly to biogeochemical cycling in forest ecosystems. We examined how site environment and initial substrate quality influence decomposition and nitrogen (N) dynamics of multiple litter types. A 2.5-year decomposition study was installed in the Oregon Coast Range and West Cascades using 15N-labeled litter from Acer macrophyllum, Picea sitchensis, and Pse
Authors
Tiff L. van Huysen, Mark E. Harmon, Steven S. Perakis, Hua Chen
Factors influencing detection of eDNA from a stream-dwelling amphibian
Environmental DNA (eDNA) methods for detecting and estimating abundance of aquatic species are emerging rapidly, but little is known about how processes such as secretion rate, environmental degradation, and time since colonization or extirpation from a given site affect eDNA measurements. Using stream-dwelling salamanders and quantitative PCR (qPCR) analysis, we conducted three experiments to ass
Authors
David S. Pilliod, Caren S. Goldberg, Robert S. Arkle, Lisette P. Waits