Publications
Below is a list of available NOROCK peer reviewed and published science. If you are in search of a specific publication and cannot find it below or through a search, please contact twojtowicz@usgs.gov.
Filter Total Items: 1341
Detecting avalanche path ground cover and vegetation change across multiple scales through time using remote sensing tools Detecting avalanche path ground cover and vegetation change across multiple scales through time using remote sensing tools
Large-magnitude avalanches often alter vegetation composition, avalanche path dimensions, and subsequent avalanche return periods. Understanding temporal changes in individual avalanche path trimlines, runout zones, and geomorphic characteristics helps forecasters, planners, and engineers estimate potential avalanche destructive size and impact on infrastructure or settlements in the...
Authors
Erich H. Peitzsch, Zachary Miller, Ron Simonhois, Ethan M. Greene
An analytical approach for simulating effects of avalanches on mountain goat population dynamics: Implications for management and conservation An analytical approach for simulating effects of avalanches on mountain goat population dynamics: Implications for management and conservation
Mountain environments with snow avalanche hazard cover about 6% of Earth’s land area and occur on all continents. Whereas human risks associated with avalanche hazard have been widely studied, little is known about how avalanche activity affects population dynamics in mountain wildlife. Globally, 32 species of mountain ungulates across 70 countries occupy avalanche-prone terrain...
Authors
Kevin White, Taal Levi, Eran W. Hood, Gabriel J. Wolken, Erich H. Peitzsch, Yves Buhler, Katreen Wikstrom Jones, Chris Darimont
Structured science syntheses to inform decision making on Federal public lands Structured science syntheses to inform decision making on Federal public lands
The U.S. Geological Survey, Bureau of Land Management, and U.S. Fish and Wildlife Service partnered to develop a new type of science product: the structured science synthesis. Structured science syntheses are peer-reviewed reports that synthesize science information about a priority resource management issue on public lands. Structured science syntheses are developed explicitly to...
Authors
Emma I. Dietrich, Sarah K. Carter, Tait K. Rutherford, Megan A. Gilbert, Travis S. Haby, Aaron N. Johnston, Samuel E. Jordan, Nathan J. Kleist, Richard J. Lehrter, Elroy H. Masters, Claudia Mengelt, Alexandra L. Stoneburner, Elisabeth C. Teige, John C. Tull, Sarah E. Whipple, David J. A. Wood
Trends in plant cover derived from vegetation plot data using ordinal zero-augmented beta regression Trends in plant cover derived from vegetation plot data using ordinal zero-augmented beta regression
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Authors
Arco van Strien, Kathryn Irvine, Cas Retel
Glaciers and ice caps outside Greenland Glaciers and ice caps outside Greenland
No abstract available.
Authors
D. Burgess, G. Wolken, B. Wouters, L.M. Andreassen, Caitlyn Florentine, J. Kohler, B. Luks, F. Palsson, Louis C. Sass, L. Thomson, T. Thorsteinsson
A unified approach to long-term population monitoring of grizzly bears in the Greater Yellowstone Ecosystem A unified approach to long-term population monitoring of grizzly bears in the Greater Yellowstone Ecosystem
Long-term wildlife research and monitoring programs strive to maintain consistent data collections and analytical methods. Incorporating new techniques is important but can render data sets incongruent and limit their potential to discern trends in demographic parameters. Integrated population models (IPMs) can address these limitations by combining data sources that may span different...
Authors
Matthew J. Gould, Justin Clapp, Mark A. Haroldson, Cecily M. Costello, J. Joshua Nowak, Hans Martin, Michael Ebinger, Daniel D. Bjornlie, Daniel Thompson, Justin A. Dellinger, Matthew A. Mumma, Paul Lukacs, Frank T. van Manen
Observing glacier elevation changes from spaceborne optical and radar sensors – an inter-comparison experiment using ASTER and TanDEM-X data Observing glacier elevation changes from spaceborne optical and radar sensors – an inter-comparison experiment using ASTER and TanDEM-X data
Observations of glacier mass changes are key to understanding the response of glaciers to climate change and related impacts, such as regional runoff, ecosystem changes, and global sea level rise. Spaceborne optical and radar sensors make it possible to quantify glacier elevation changes, and thus multi-annual mass changes, on a regional and global scale. However, estimates from a...
Authors
Livia Piermattei, Michael Zemp, Christian Sommer, Fanny Brun, Matthias H. Braun, Liss M. Andreassen, Joaquin M. C. Belart, Etienne Berthier, Atanu Bhattacharya, Laura Boehm Vock, Tobias Bolch, Amaury Dehecq, Ines Dussaillant, Daniel Falaschi, Caitlyn Florentine, Dana Floricioiu, Christian Ginzler, Gregoire Guillet, Romain Hugonnet, Andreas Kaab, Owen King, Christoph Klug, Friedrich Knuth, Lukas Krieger, Jeff La Frenierre, Robert McNabb, Christopher McNeil, Rainer Prinz, Louis C. Sass, Thorsten Seehaus, David Shean, Desiree Treichler, Anja Wendt, Ruitang Yang
Wildland fire effects on sediment, salinity, and selenium yields in a basin underlain by Cretaceous marine shales near Rangely, Colorado Wildland fire effects on sediment, salinity, and selenium yields in a basin underlain by Cretaceous marine shales near Rangely, Colorado
Understanding and quantifying soil erosion from rangelands is a high priority for land managers, especially in areas underlain by Cretaceous Mancos Shale, which is a natural source of sediment, salinity, and selenium to surface waters in many areas of western Colorado and eastern Utah. The purpose of this report is to present the results of a U.S. Geological Survey study that assessed...
Authors
Natalie K. Day, Todd M. Preston, Patrick C. Longley
Clustering and unconstrained ordination with Dirichlet process mixture models Clustering and unconstrained ordination with Dirichlet process mixture models
Assessment of similarity in species composition or abundance across sampled locations is a common goal in multi-species monitoring programs. Existing ordination techniques provide a framework for clustering sample locations based on species composition by projecting high-dimensional community data into a low-dimensional, latent ecological gradient representing species composition...
Authors
Christian Stratton, Andrew Hoegh, Thomas Rodhouse, Jennifer L. Green, Katharine M. Banner, Kathryn Irvine
Incorporating projected climate conditions to map future riparian refugia Incorporating projected climate conditions to map future riparian refugia
Identifying areas expected to remain buffered from climate change and maintain biodiversity and ecological function (i.e., climate refugia) is important for climate adaptation planning. As structurally diverse transitional zones between terrestrial and aquatic environments, riparian areas are often biological hotspots and provide critical corridors for species movement, particularly in...
Authors
Kimberly E Szcodronski, Alisa A. Wade, Sarah Elizabeth Burton, Blake R. Hossack
Climate science and adaptation planning support for State Wildlife Action Plans in the North Central region Climate science and adaptation planning support for State Wildlife Action Plans in the North Central region
Final report for an NC CASC project to identify needs and provide support for states in the North Central region and Idaho to integrate climate science and adaptation into their State Wildlife Action Plans (SWAPs). Our objectives were to: 1) engage with state wildlife agencies in the North Central region to identify their needs for climate-informed planning support and 2) collaboratively...
Authors
Kimberly E Szcodronski, Blake R. Hossack, Sarah Elizabeth Burton, Alisa Wade Wilcox
Western and McKay's bumble bees occupancy trends and future projections Western and McKay's bumble bees occupancy trends and future projections
The Western and McKay's bumble bees, originally petitioned for listing as subspecies of the Western bumble bee (Bombus occidentalis) were previously among the most common western bumble bee species but have declined since the late 1990s (Graves et al. 2021). This report details an occupancy analysis utilizing pre-existing and newly collected bumble bee survey data to evaluate potential...
Authors
William Michael Janousek, Margaret R. Douglas, Imtiaz Rangwala, Jeffrey G. Everett, Douglas A. Keinath, Tabitha A. Graves