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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: 1,762
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Year Published: 2017

Behavioral flexibility as a mechanism for coping with climate change

Of the primary responses to contemporary climate change – “move, adapt, acclimate, or die” – that are available to organisms, “acclimate” may be effectively achieved through behavioral modification. Behavioral flexibility allows animals to rapidly cope with changing environmental conditions, and behavior represents an important component of a...

Beever, Erik A.; Hall, L. Embere; Varner, Johanna; Loosen, Anne E.; Dunham, Jason B.; Gahl, Megan K.; Smith, Felisa A.; Lawler, Joshua J.

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Year Published: 2017

Life history migrations of adult Yellowstone Cutthroat Trout in the upper Yellowstone River

Knowledge of salmonid life history types at the watershed scale is increasingly recognized as a cornerstone for effective management. In this study, we used radiotelemetry to characterize the life history movements of Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri in the upper Yellowstone River, an extensive tributary that...

Ertel, Brian D.; McMahon, Thomas E.; Koel, Todd M.; Gresswell, Robert E.; Burckhardt, Jason
Ertel, B.D., T.E. McMahon, T.M. Koel, R.E. Gresswell, and J.C. Burckhardt. 2017. Life history migrations of adult Yellowstone Cutthroat Trout in the upper Yellowstone River. North American Journal of Fisheries Management 37:743-755.

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Year Published: 2017

Yellowstone grizzly bears: Ecology and conservation of an icon of wildness

No abstract available.

White, P.J.; Gunther, Kerry A.; van Manen, Frank T.
Yellowstone grizzly bears : ecology and conservation of an icon of wildness / editors, P.J. White, Kerry A. Gunther, and Frank T. van Manen ; contributing authors, Daniel D. Bjornlie [and thirteen others] ; managing editor, Jennifer A. Jerrett. Yellowstone National Park, [Wyoming] : National Park Service, Yellowstone National Park ; [Bozeman, Montana] : U.S. Geological Survey, Northern Rocky Mountain Science Center, 2017.

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Year Published: 2017

Streamflow alteration at selected sites in Kansas

An understanding of streamflow alteration in response to various disturbances is necessary for the effective management of stream habitat for a variety of species in Kansas. Streamflow alteration can have negative ecological effects. Using a modeling approach, streamflow alteration was assessed for 129 selected U.S. Geological Survey streamgages...

Juracek, Kyle E.; Eng, Ken
Juracek, K.E., and Eng, Ken, 2017, Streamflow alteration at selected sites in Kansas: U.S. Geological Survey Scientific Investigations Report 2017–5046, 75 p., https://doi.org/10.3133/sir20175046.

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Year Published: 2017

Shifting brucellosis risk in livestock coincides with spreading seroprevalence in elk

Tracking and preventing the spillover of disease from wildlife to livestock can be difficult when rare outbreaks occur across large landscapes. In these cases, broad scale ecological studies could help identify risk factors and patterns of risk to inform management and reduce incidence of disease. Between 2002 and 2014, 21 livestock herds in the...

Brennan, Angela; Cross, Paul C.; Portacci, Katie; Scurlock, Brandon M.; Edwards, William H.
Brennan, A, PC Cross, K Portacci, BM Scurlock, WH Edwards. Accepted. Shifting brucellosis risk in livestock coincides with spreading seroprevalence in elk. PLoS ONE.

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Year Published: 2017

Assessment of imperfect detection of blister rust in whitebark pine within the Greater Yellowstone Ecosystem

We examined data on white pine blister rust (blister rust) collected during the monitoring of whitebark pine trees in the Greater Yellowstone Ecosystem (from 2004-2015). Summaries of repeat observations performed by multiple independent observers are reviewed and discussed. These summaries show variability among observers and the potential for...

Wright, Wilson J.; Irvine, Kathryn M.
Wright WJ and Irvine KM. 2017. Assessment of imperfect detection of blister rust in whitebark pine within the Greater Yellowstone Ecosystem. Natural Resource Report. NPS/GRYN/NRR—2017/1457. National Park Service. Fort Collins, Colorado

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Year Published: 2017

A critical review of the postulated role of the non-essential amino acid, β-N-methylamino-L-alanine, in neurodegenerative disease in humans

The compound BMAA (β-N-methylamino-L-alanine) has been postulated to play a significant role in four serious neurological human diseases: Amyotrophic Lateral Sclerosis/Parkinsonism Dementia Complex (ALS/PDC) found on Guam, and ALS, Parkinsonism, and dementia that occur globally. ALS/PDC with symptoms of all three diseases first came to the...

Chernoff, Neil; Hill, D. J.; Diggs, D. L.; Faison, B. D.; Francis, B. M.; Lang, J. R.; Larue, M. M.; Le, T.-T.; Loftin, Keith A.; Lugo, J. N.; Schmid, J. E.; Winnik, W. W.
N. Chernoff, D. J. Hill, D. L. Diggs, B. D. Faison, B. M. Francis, J. R Lang, M. M. Larue, T.-T. Le, K. A. Loftin, J. N. Lugo, J. E. Schmid & W. M. Winnik (2017): A critical review of the postulated role of the non-essential amino acid, β-N-methylamino-L-alanine, in neurodegenerative disease in humans, Journal of Toxicology and Environmental Health, Part B, DOI: 10.1080/10937404.2017.1297592

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Year Published: 2017

Evaluating species-specific changes in hydrologic regimes: an iterative approach for salmonids in the Greater Yellowstone Area (USA)

Despite the importance of hydrologic regimes to the phenology, demography, and abundance of fishes such as salmonids, there have been surprisingly few syntheses that holistically assess regional, species-specific trends in hydrologic regimes within a framework of climate change. Here, we consider hydrologic regimes within the Greater Yellowstone...

Al-Chokhachy, Robert K.; Sepulveda, Adam J.; Ray, Andrew M.; Thoma, David P.; Tercek, Michael T.
Al-Chokhachy R., Sepulveda A.J., Ray A.M., Thoma D.P., Tercek M.T. Evaluating species-specific changes in hydrologic regimes: an iterative approach for salmonids in the Greater Yellowstone Area (USA). Rev Fish Biol Fisheries 27(2):425-441 https://doi.org/10.1007/s11160-017-9472-3

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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

Filter Total Items: 178
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.

Lake Whitefish
November 4, 2006

Lake Whitefish

Lake Whitefish from our fall survey.