Northern Rocky Mountain Science Center (NOROCK)

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 ssoileau@usgs.gov.

Filter Total Items: 771
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Year Published: 2019

Research Note: How old are the people who die in avalanches? A look into the ages of avalanche victims in the United States (1950-2018)

Since the winter of 1950-1951, 1084 individuals perished in snow avalanches in the United States. In this study, we analyze the ages of those killed (n=900) by applying non-parametric methods to annual median ages and for age groups and primary activity groups. Change point detection results suggest a significant change in 1990 in the median age...

Peitzsch, Erich; Boilen, Sara; Birkeland, Karl W.; Logan, Spencer

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Year Published: 2019

Drought-mediated extinction of an arid-land amphibian: Insights from a spatially explicit dynamic occupancy model

Understanding how natural and anthropogenic processes affect population dynamics of species with patchy distributions is critical to predicting their responses to environmental changes. Despite considerable evidence that demographic rates and dispersal patterns vary temporally in response to an array of biotic and abiotic processes, few...

Muths, Erin L.; Zylstra, Erin R; Swann, Don E; Hossack, Blake R.; Steidl, Robert J

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Year Published: 2019

Restoring a forest icon: Could returning the American chestnut remodel our wildlife landscape?

Mother Nature was not making it easy. It was February 18, 2009, and winds were gusting, sleet was falling, and temperatures were hovering around 40° F. Our crew of 9 which consisted of personnel from the USDA Forest Service Southern Research Station, the Cherokee National Forest, and The University of Tennessee’s Tree Improvement Program, was...

Clark, Staci L; Schlarbaum, Scott E.; Clark, Joseph D.

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Year Published: 2019

Adding invasive species bio-surveillance to the U.S. Geological Survey streamgage network

The costs of invasive species in the United States alone are estimated to exceed US$100 billion per year so a critical tactic in minimizing the costs of invasive species is the development of effective, early-detection systems. To this end, we evaluated the efficacy of adding environmental (e)DNA surveillance to the U.S. Geological Survey (USGS)...

Sepulveda, Adam J.; Schmidt, Christian; Amberg, Jon J.; Hutchins, Patrick R.; Stratton, Christian; Mebane, Christopher A.; Laramie, Matthew; Pilliod, David

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Year Published: 2019

Epidemic growth rates and host movement patterns shape management performance for pathogen spillover at the wildlife-livestock interface

Managing pathogen spillover at the wildlife–livestock interface is a key step towards improving global animal health, food security and wildlife conservation. However, predicting the effectiveness of management actions across host–pathogen systems with different life histories is an on-going challenge since data on intervention effectiveness are...

Manlove, K.R.; Sampson, L. M.; Borremans, B.; Cassirer, E. Frances; Miller, R. S.; Pepin, K.; Besser, T. E.; Cross, Paul

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Year Published: 2019

Confronting models with data: The challenges of estimating disease spillover

For pathogens known to transmit across host species, strategic investment in disease control requires knowledge about where and when spillover transmission is likely. One approach to estimating spillover is to directly correlate observed spillover events with covariates. An alternative is to mechanistically combine information on host density,...

Cross, Paul C.; Prosser, Diann; Ramey, Andrew M.; Hanks, Ephraim M.; Pepin, Kim M.

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Year Published: 2019

Ecological interventions to prevent and manage zoonotic pathogen spillover

Spillover of a pathogen from a wildlife reservoir into a human or livestock host requires the pathogen to overcome a hierarchical series of barriers. Interventions aimed at one or more of these barriers may be able to prevent the occurrence of spillover. Here, we demonstrate how interventions that target the ecological context in which spillover...

Sokolow, S. H.; Nova, Nicole; Pepin, Kim; Peel, A. J.; Pulliam, J; Manlove, Kezia R.; Cross, Paul; Becker, D.; Plowright, RK; McCallum, Hamish; De Leo, Giulio A.

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Year Published: 2019

Streamflow reconstruction in the Upper Missouri River Basin using a novel Bayesian network model

A Bayesian model that uses the spatial dependence induced by the river network topology, and the leading principal components of regional tree-ring chronologies for paleo-streamflow reconstruction is presented. In any river basin, a convergent, dendritic network of tributaries comes together to form the main stem of a river. Consequently, it is...

Ravindranath, Arun; Devineni, Naresh; Lall, Upmanu; Cook, Edward; Pederson, Gregory T.; Martin, Justin; Woodhouse, Connie A.

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Year Published: 2019

Climatic correlates of white pine blister rust infection in whitebark pine in the Greater Yellowstone Ecosystem

Whitebark pine, a foundation species at tree line in the Western U.S. and Canada, has declined due to native mountain pine beetle epidemics, wildfire, and white pine blister rust. These declines are concerning for the multitude of ecosystem and human benefits provided by this species. Understanding climatic correlates associated with spread is...

Thoma, David; Shanahan, Erin K.; Irvine, Kathryn

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Year Published: 2019

Spatial capture-recapture reveals age- and sex-specific survival and movement in stream amphibians

Life history information sets the foundation for our understanding of ecology and conservation requirements. For many species, this information is lacking even for basic demographic rates such as survival and movement. When survival and movement estimates are available, they are often derived from mixed demographic groups and do not consider...

Honeycutt, R. Ken; Garwood, Justin M; Lowe, Winsor H.; Hossack, Blake R.
Honeycutt RK, Garwood JM, Lowe WH, Hossack BR (2019) Spatial capture–recapture reveals age- and sex-specific survival and movement in stream amphibians. Oecologia. doi: 10.1007/s00442-019-04464-3

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Year Published: 2019

Predicting attenuation of salinized surface- and groundwater-resources from legacy energy development in the Prairie Pothole Region

Oil and gas (energy) development in the Williston Basin, which partly underlies the Prairie Pothole Region in central North America, has helped meet U.S. energy demand for decades. Historical handling and disposal practices of saline wastewater co-produced during energy development resulted in salinization of surface and groundwater at numerous...

Preston, Todd M.; Anderson, Chauncey W.; Thamke, Joanna N.; Hossack, Blake R.; Skalak, Katherine; Cozzarelli, Isabelle M.

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Year Published: 2019

Improved detection of rare, endangered and invasive trout using a new large-volume sampling method for eDNA capture

Environmental DNA (eDNA) detection probability increases with volume of water sampled. Common approaches for collecting eDNA samples often require many samples since these approaches usually use fine filters, which restricts the volume of water that can be sampled. An alternative to collecting many, small volume water samples using fine filters...

Sepulveda, Adam J.; Schabacker, Jenna; Smith, Seth; Al-Chokhachy, Robert; Luikart, Gordon; Amish, Stephen J.