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Filter Total Items: 151
Image: School of Bull Trout
Date Published: March 4, 2016

Assessing the impacts of mining in the Transboundary Flathead and Kootenai River systems

The Transboundary Flathead and Kootenai Basins in Montana and British Columbia host some of the most diverse and unique native aquatic ecosystems throughout North America. Headwaters of these basin feed into Waterton-Glacier International Peace Park (U.S. and Canada) and Flathead Lake, and Lake Koocanusa and the Kootenai River in the U.S.   Despite the tremendous historical and ecological...

Head shot of the Meltwater Stonefly
Date Published: March 3, 2016
Status: Active

Climate change links fate of glaciers and rare alpine stream invertebrates in Glacier National Park

The extensive loss of glaciers in Glacier National Park (GNP) is iconic of the global impacts of climate warming in mountain ecosystems. However, little is known about how climate change may threaten alpine stream species, especially invertebrates, persisting below disappearing snow and ice masses in GNP. Two alpine stream invertebrates – the meltwater stonefly and the glacier stonefly – have...

Collecting macroinvertebrates in Glacier National Park.
Date Published: March 2, 2016

Integrated bioassessment of imperiled alpine aquatic ecosystems using NPS vital signs and USGS research data: Implications for conservation under a warming climate

Climate warming in the mid- to high-latitudes and high-elevation mountainous regions is occurring more rapidly than anywhere else on Earth, causing extensive loss of glaciers and snowpack. The loss of glaciers in Glacier National Park (GNP) is iconic of the combined impacts of global warming and reduced snowpack−all remaining 25 glaciers are predicted to disappear by 2030. These changes will...

This radar image from May 16, 1999, captures the distribution of birds in the airspace shortly after the onset of nocturnal migr
Date Published: March 1, 2016

Radar Technology - A Tool for Understanding Migratory Aerofauna

Understanding the factors affecting migratory bird and bat populations during all three phases of their life cycle—breeding, non-breeding, and migration—is critical to species conservation planning. This includes the need for information about these species’ responses to natural challenges, as well as information about the impact of human activities that alter resources critical to migrants...

Contacts: Robb Diehl
Westslope cutthroat trout and bull trout in the North Fork of the Flathead River, Montana.
Date Published: March 1, 2016
Status: Active

Evaluation of alternative dam operations on the movement and habitat use of bull trout and westslope cutthroat trout

The goal of this project is to quantify the operational impacts of Hungry Horse Dam on native bull trout and westslope cutthroat trout in the upper Flathead River system, Montana.

A historical image of visitors and bears in Yellowstone National Park.
Date Published: March 1, 2016

History of the IGBST

A heated debate began in the 1960s and 1970s and grew to a national scope concerning the grizzly bears in the GYE. For decades, grizzly bears were allowed to rummage through garbage dumps searching for food. As early as the 1940s, some researchers suggested closing the open-pit dumps within Yellowstone National Park. In 1963, the Advisory Board on Wildlife Management in the National Parks...

UAV launch
Date Published: February 3, 2016

NOROCK's Small Unmanned Aircraft Systems (sUAS) Program

Scientists at NOROCK are actively exploring the use of small unmanned aerial system (sUAS) for sensor testing and scientific data collection. We are using the same sUAS deployed by the US Department of Defense. These systems have proven their utility in reconnaissance missions and are now finding a second life in scientific research.

Filter Total Items: 1,754
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Year Published: 2017

Genetic responses to rapid change in the environment during the anthropocene

Humans have greatly affected the genetic composition of many different organisms during the Anthropocene. Humans cause genetic changes by affecting the direction and magnitude of evolutionary forces that act to create the Earth's biota. In many cases, we expect the outcome of human actions to be extinction and hybridization of existing species,...

Tallmon, David A.; Kovach, Ryan
Tallmon, David & Kovach, Ryan. (2017). Genetic Responses to Rapid Change in the Environment During the Anthropocene. Reference Module in Earth Systems and Environmental Sciences. .

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Year Published: 2017

Distance and environmental difference in alpine plant communities

Differences in plant communities are a response to the abiotic environment, species interactions, and dispersal. The role of geographic distance relative to the abiotic environment is explored for alpine tundra vegetation from 319 plots of four regions along the Rocky Mountain cordillera in the USA. The site by species data were ordinated using...

Malanson, George P.; Zimmerman, Dale L.; Fagre, Daniel B.
George P. Malanson, Dale L. Zimmerman & Daniel B. Fagre (2017) Distance and environmental difference in alpine plant communities, Physical Geography, 38:6, 489-505, DOI: 10.1080/02723646.2017.1327284

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Year Published: 2017

Unraveling the disease consequences and mechanisms of modular structure in animal social networks

Disease risk is a potential cost of group living. Although modular organization is thought to reduce this cost in animal societies, empirical evidence toward this hypothesis has been conflicting. We analyzed empirical social networks from 43 animal species to motivate our study of the epidemiological consequences of modular structure in animal...

Sah, Pratha; Leu, Stephan T.; Cross, Paul C.; Hudson, Peter J.; Bansal, Shweta
Sah, P, ST Leu, PC Cross, PJ Hudson, S Bansal. 2017. Unraveling the disease consequences and mechanisms of modular structure in animal social networks. PNAS. 114(16): 4165-4170.

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Year Published: 2017

Estimating loss of Brucella abortus antibodies from age-specific serological data in elk

Serological data are one of the primary sources of information for disease monitoring in wildlife. However, the duration of the seropositive status of exposed individuals is almost always unknown for many free-ranging host species. Directly estimating rates of antibody loss typically requires difficult longitudinal sampling of individuals...

Benavides, J. A.; Caillaud, D.; Scurlock, B. M.; Maichak, E. J.; Edwards, W.H.; Cross, Paul C.
Benavides, JA, D Caillaud, BM Scurlock, EJ Maichak, WH Edwards, PC Cross. 2017.Estimating loss of Brucella abortus antibodies from age-specific serological data in elk. EcoHealth

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Year Published: 2017

Using decision analysis to support proactive management of emerging infectious wildlife diseases

Despite calls for improved responses to emerging infectious diseases in wildlife, management is seldom considered until a disease has been detected in affected populations. Reactive approaches may limit the potential for control and increase total response costs. An alternative, proactive management framework can identify immediate actions that...

Grant, Evan H. Campbell; Muths, Erin L.; Katz, Rachel A.; Canessa, Stefano; Adams, M.J.; Ballard, Jennifer R.; Berger, Lee; Briggs, Cheryl J.; Coleman, Jeremy; Gray, Matthew J.; Harris, M. Camille; Harris, Reid N.; Hossack, Blake R.; Huyvaert, Kathryn P.; Kolby, Jonathan E.; Lips, Karen R.; Lovich, Robert E.; McCallum, Hamish I.; Mendelson, Joseph R.; Nanjappa, Priya; Olson, Deanna H.; Powers, Jenny G.; Richgels, Katherine L. D.; Russell, Robin E.; Schmidt, Benedikt R.; Spitzen-van der Sluijs, Annemarieke; Watry, Mary Kay; Woodhams, Douglas C.; White, C. LeAnn
Grant, E. H. C., Muths, E., Katz, R. A., Canessa, S., Adams, M. J., Ballard, J. R., Berger, L., Briggs, C. J., Coleman, J. T. H., Gray, M. J., Harris, M C., Harris, R. N., Hossack, B., Huyvaert, K. P., Kolby, J., Lips, K. R., Lovich, R. E., McCallum, H. I., Mendelson, J. R., Nanjappa, P., Olson, D. H., Powers, J. G., Richgels, K. L. D., Russell, R. E., Schmidt, B. R., Spitzen-van der Sluijs, A., Watry, M. K., Woodhams, D. C., and White, C. L., 2017, Using decision analysis to support proactive management of emerging infectious wildlife diseases: Frontiers in Ecology and the Environment, v. 15, no. 4, p. 214-221.

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Year Published: 2017

Informing recovery in a human-transformed landscape: Drought-mediated coexistence alters population trends of an imperiled salamander and invasive predators

Understanding the additive or interactive threats of habitat transformation and invasive species is critical for conservation, especially where climate change is expected to increase the severity or frequency of drought. In the arid southwestern USA, this combination of stressors has caused widespread declines of native aquatic and semi-aquatic...

Hossack, Blake R.; Honeycutt, R. Ken; Sigafus, Brent H.; Muths, Erin L.; Crawford, Catherine L.; Jones, Thomas R.; Sorensen, Jeff A.; Rorabaugh, James C.; Chambert, Thierry
Hossack, B. R., R. K. Honeycutt, B. H. Sigafus, E. Muths, C. L. Crawford, T. R. Jones, J. A. Sorensen, J. C. Rorabaugh, and T. Chambert. 2017. Informing recovery in a human-transformed landscape: Drought-mediated coexistence alters population trends of an imperiled salamander and invasive predators. Biological Conservation 209:377–394.

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Year Published: 2017

Eighty years of cooperative water science

The Equus Beds aquifer in south-central Kansas is a primary water source for the city of Wichita. The Equus Beds aquifer storage and recovery (ASR) project was developed to help the city of Wichita meet increasing current and future demands. The Equus Beds ASR project is a recent part of an 80-year cooperative water science effort with the city of...

Stone, Mandy L.
Stone, M.L., 2017, Eighty years of cooperative water science: U.S. Geological Survey General Information Product 174, 2 p., https://doi.org/10.3133/gip174.

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Year Published: 2017

Additive impacts of experimental climate change increase risk to an ectotherm at the Arctic's edge

Globally, Arctic and Subarctic regions have experienced the greatest temperature increases during the last 30 years. These extreme changes have amplified threats to the freshwater ecosystems that dominate the landscape in many areas by altering water budgets. Several studies in temperate environments have examined the adaptive capacity of...

Davenport, Jon M.; Hossack, Blake R.; Fishback, LeeAnn
Davenport, J. M., B. R. Hossack, and L. Fishback. 2017. Additive impacts of experimental climate change increase risk to an ectotherm at the Arctic’s edge. Global Change Biology 23:2262-2271. doi:10.1111/gcb.13543.

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Year Published: 2017

Managing the livestock– Wildlife interface on rangelands

On rangelands the livestock–wildlife interface is mostly characterized by management actions aimed at controlling problems associated with competition, disease, and depredation. Wildlife communities (especially the large vertebrate species) are typically incompatible with agricultural development because the opportunity costs of wildlife...

du Toit, Johan T.; Cross, Paul C.; Valeix, Marion

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Year Published: 2017

Reassessment of the Upper Fremont Glacier ice-core chronologies by synchronizing of ice-core-water isotopes to a nearby tree-ring chronology

The Upper Fremont Glacier (UFG), Wyoming, is one of the few continental glaciers in the contiguous United States known to preserve environmental and climate records spanning recent centuries. A pair of ice cores taken from UFG have been studied extensively to document changes in climate and industrial pollution (most notably, mid-19th century...

Chellman, Nathan J.; McConnell, Joseph R.; Arienzo, Monica; Pederson, Gregory T.; Aarons, Sarah; Csank, Adam
Reassessment of the Upper Fremont Glacier Ice-Core Chronologies by Synchronizing of Ice-Core-Water Isotopes to a Nearby Tree-Ring Chronology Nathan Chellman, Joseph R. McConnell, Monica Arienzo, Gregory T. Pederson, Sarah M. Aarons, and Adam Csank Environmental Science & Technology 2017 51 (8), 4230-4238 DOI: 10.1021/acs.est.6b06574

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Year Published: 2017

Chapter 6: Temperature

Stream temperature has direct and indirect effects on stream ecology and is critical in determining both abiotic and biotic system responses across a hierarchy of spatial and temporal scales. Temperature variation is primarily driven by solar radiation, while landscape topography, geology, and stream reach scale ecosystem processes contribute to...

F. Richard Hauer; Lamberti, G.A.; Jones, Leslie A.; Muhlfeld, Clint C.; Hauer, F. Richard
Jones, Leslie, Clint C. Muhlfeld, and F. Richard Hauer. Temperature In Methods of Stream Ecology, Elsevier Publishing

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Year Published: 2017

Summary of hydrologic conditions in Kansas, water year 2016

The U.S. Geological Survey (USGS), in cooperation with Federal, State, and local agencies, maintains a long-term network of hydrologic monitoring sites in Kansas. Real-time data are collected at 216 streamgage sites and are verified throughout the year with regular measurements of streamflow made by USGS personnel. Annual assessments of hydrologic...

Louen, Justin M.
Louen, J.M., 2017, Summary of hydrologic conditions in Kansas, water year 2016: U.S. Geological Survey Fact Sheet 2017–3020, 4 p., https://doi.org/10.3133/fs20173020.

Filter Total Items: 181
Lamar Valley, Yellowstone National Park.
December 31, 2010

Lamar Valley, Yellowstone National Park.

Lamar Valley, Yellowstone National Park.

Ice Formation 11
December 13, 2010

Ice Formation on Des Lacs River at Foxholm, ND (05116500)

Ice formation on Des Lacs River at Foxholm, ND (USGS streamgage 05116500;
https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=05116500&agency_cd=USGS&) on
December 13, 2010. The weir and river are icing over and small ice spikes

...
Ice Formation 14
November 4, 2010

Des Lacs River at Foxholm, ND (05116500)

Des Lacs River at Foxholm, ND (USGS streamgage 05116500;
https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=05116500&agency_cd=USGS&) on
November 4, 2010. Open-water conditions at weir. Flow was 15.9 cubic feet per second.

Ice formation 2
November 2, 2010

Apple Creek near Menoken, ND (06349500)

Open weir on Apple Creek near Menoken, ND (USGS streamgage 06349500;
https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=06349500&agency_cd=USGS&) on
November 2, 2010. Flow was 36.7 cubic feet per second.

three neotropical birds (Left to right: Magnolia warbler, Wilson's warbler, Canada warbler - all males) that were cought in mist
December 31, 2009

three neotropical birds

Three neotropical birds (Left to right: Magnolia warbler, Wilson's warbler, Canada warbler - all males) that were cought in mist net for banding

Photo of scientist measuring groundwater levels at night.
April 3, 2009

Scientist measuring groundwater levels at during aquifer test study.

USGS Nebraska Water Science Center hydrologist, Greg Steele, collecting groundwater level measurements at night during an aquifer test.

Cheney algal bloom
September 26, 2008

Cheney algal bloom

Algae bloom near Cheney Reservoir Dam, Kansas.

Cheney Res water samples
September 26, 2008

Cheney Res water samples

Discrete samples collected from a near-shore accumulation of cyanobacteria (left) and an open-water area (right) in Cheney Reservoir, Kansas.

Photo of Platte River near Alda, Nebraska at sunset
November 6, 2006

Platte River near Alda, Nebraska at sunset.

Platte River near Alda, Nebraska at sunset, Nov. 6, 2006.