Publications
Filter Total Items: 1990
Adaptive variation, including local adaptation, requires decades to become evident in common gardens
Population‐level adaptation to spatial variation in factors such as climate and soils is critical for climate‐vulnerability assessments, restoration seeding, and other ecological applications in species management, and the underlying information is typically based on common‐garden studies that are short duration. Here, we show >20 yr were required for adaptive differences to emerge among 13 popula
Authors
Matthew J. Germino, Ann M. Moer, Alan R. Sands
Landscape and organismal factors affecting sagebrush-seedling transplant survival after megafire restoration
Larger and more frequent disturbances are motivating efforts to accelerate recovery of foundational perennial species by focusing efforts into establishing island patches to sustain keystone species and facilitate recovery of the surrounding plant community. Evaluating the variability in abiotic and biotic factors that contribute to differences in survival and establishment can provide useful insi
Authors
Bill Davidson, Matthew J. Germino, Bryce Richardson, David Barnard
Effects of nest exposure and spring temperatures on golden eagle brood survival: An opportunity for mitigation
We examined Golden Eagle (Aquila chrysaetos) brood survival in relation to spring temperatures and exposure of nests to afternoon sun in southwestern Idaho from 1970 through 2012. Most (77%) nests classified as shaded in a subset of 96 nests had northwest to east aspects, and most (71%) nests classified as exposed had south to west aspects. We analyzed survival of 1154 Golden Eagle broods in 64 te
Authors
Michael N. Kochert, Karen Steenhof, Jessi L. Brown
Using motion-activated cameras to study diet and productivity of cliff-nesting Golden Eagles
Studies of cliff-nesting raptors can be challenging because direct observations of nest
contents are difficult. Our goals were to develop a protocol for installing motionactivated
trail cameras at Golden Eagle (Aquila chrysaetos) nests to record diet
information and productivity, and to estimate prey detection probability using different
diet study methods. In 2014 and 2015, we installed cameras a
Authors
Jordan Harrison, Michael N. Kochert, Benjamin P. Pauli, Julie A. Heath
Can’t see the random forest for the decision trees: Selecting predictive models for restoration ecology
Improving predictions of restoration outcomes is increasingly important to resource managers for accountability and adaptive management, yet there is limited guidance for selecting a predictive model from the multitude available. The goal of this paper was to identify an optimal predictive framework for restoration ecology using eleven modeling frameworks (including, machine learning, inferential,
Authors
David Barnard, Matthew Germino, David Pilliod, Robert Arkle, Cara Applestein, Bill Davidson, Matthew Fisk
Nutrients mediate the effects of temperature on methylmercury concentrations in freshwater zooplankton
Methylmercury (MeHg) bioaccumulation in freshwater aquatic systems is impacted by anthropogenic stressors, including climate change and nutrient enrichment. The goal of this study was to determine how warmer water temperatures and excess nutrients would alter zooplankton communities and phytoplankton concentrations, and whether those changes would in turn increase or decrease MeHg concentrations i
Authors
Meredith P Jordan, A. Robin Stewart, Collin A. Eagles-Smith, Angela L Stracker
Simulating demography, genetics, and spatially explicit processes to inform reintroduction of a threatened char
The success of species reintroductions can depend on a combination of environmental, demographic, and genetic factors. Although the importance of these factors in the success of reintroductions is well‐accepted, they are typically evaluated independently, which can miss important interactions. For species that persist in metapopulations, movement through and interaction with the landscape is predi
Authors
Meryl C. Mims, Casey C. Day, Jacob J. Burkhart, Matthew R. Fuller, Jameson Hinkle, Andrew Bearlin, Jason B. Dunham, Patrick W. DeHaan, Zachary A. Holden, Erin L. Landguth
A strategy for defining the reference for land health and degradation assessments
Much of the confusion about the definition of reference conditions for land health and degradation assessments is due to differences in policy and management objectives. Selection of a historic reference where it is not necessary, such as in the definition of future land degradation neutrality, can add significant cost and uncertainty to land management projects that require some knowledge of the
Authors
Jeffrey E. Herrick, Patrick Shaver, David A. Pyke, Mike Pellant, David Toledo, Nika Lepak
Hierarchical multi-population viability analysis
Population viability analysis (PVA) uses concepts from theoretical ecology to provide a powerful tool for quantitative estimates of population dynamics and extinction risks. However, conventional statistical PVA requires long-term data from every population of interest, whereas many species of concern exist in multiple isolated populations that are only monitored occasionally. We present a hierarc
Authors
Douglas R. Leasure, Seth J. Wenger, Nathan Chelgren, Helen M. Neville, Daniel C. Dauwalter, Robin Bjork, Kurt A. Fesenmyer, Jason B. Dunham, Mary M. Peacock, Charlie H. Luce, Abby C. Lute, Daniel J. Isaak
Compounding effects of climate change reduce population viability of a montane amphibian
Anthropogenic climate change presents challenges and opportunities to the growth, reproduction, and survival of individuals throughout their life cycles. Demographic compensation among life‐history stages has the potential to buffer populations from decline, but alternatively, compounding negative effects can lead to accelerated population decline and extinction. In montane ecosystems of the U.S.
Authors
Amanda M. Kissel, Wendy J. Palen, Maureen E. Ryan, Michael J. Adams
Conceptualizing ecological responses to dam removal: If you remove it, what's to come?
One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objective, we synthesized information from empirical studies and ecological theory into conceptual models that depict key physical and biological links driving ecological responses to removing dams. We define models for three distinct spatial domains: upstre
Authors
J. Ryan Bellmore, George R. Pess, Jeffrey J. Duda, Jim E. O'Connor, Amy E. East, Melissa M. Foley, Andrew C. Wilcox, Jon J. Major, Patrick B. Shafroth, Sarah A. Morley, Christopher S. Magirl, Chauncey W. Anderson, James E. Evans, Christian E. Torgersen, Laura S. Craig
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Species Management Research Program, Arizona Water Science Center, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Oregon Water Science Center, Pacific Coastal and Marine Science Center, Western Fisheries Research Center
Wildland Fire Science — Supporting wildland fire and land management
The U.S. Geological Survey's Wildland Fire Science Program produces fundamental information to identify the causes of wildfires, understand the impacts and benefits of both wildfires and prescribed fires, and help prevent and manage larger, catastrophic events. Our fire scientists provide information and develop tools that are widely used by stakeholders to make decisions before, during, and after
Authors
Paul F. Steblein, Mark P. Miller, Suzanna C. Soileau