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Filter Total Items: 151
Thrush feeding babies.
Date Published: March 16, 2016
Status: Active

The ecology, behavior, and conservation of migratory birds

U.S. Geological Survey research contributes to conservation measures and improved management of migratory bird populations and their habitats across the United States. Migratory birds provide ecosystem benefits that include pest control, pollination of plants and serve as food sources for other wildlife. They are also a source of recreation for millions of bird watchers and enthusiasts who...

Boreal toad on a burned log.
Date Published: March 15, 2016

RARMI: Northern Rocky Mountain Science Center (NOROCK) Apex Sites

In contrast to RARMI study areas in Colorado that have 10 or more years of records of continuous population monitoring, there are fewer long-term datasets for amphibian populations in the northern Rocky Mountains. The exception is an ongoing study of Columbia spotted frogs at Lodge Creek, Yellowstone National Park. Three other long-term research and monitoring areas have been established in...

Contacts: Blake Hossack
Red spotted toad.
Date Published: March 15, 2016

RARMI: Fort Collins Science Center (FORT) Apex Sites

FORT is monitoring populations of amphibians at three apex sites using capture-recapture methods. Our goal in monitoring populations is to detect fluctuations in population size, sex ratio, survival, and recruitment. Through long-term monitoring, we can also address breeding phenology in relation to elevation, weather, and climate. Other specific questions can be asked about issues such as...

A wolf at the Grizzly and Wolf Discovery Center in Montana as shown in thermal imagery.
Date Published: March 15, 2016
Status: Completed

COMPLETED: Using thermal imagery to assess wolf hairloss from sarcoptic mange

Researchers at NOROCK and their partners used thermal cameras at the Grizzly and Wolf Discovery Center in Montana to assess the amount of heat lost under a range of environmental conditions with and without hair. These methods help scientists better understand how mange operates in wild wolves throughout the Greater...

Contacts: Paul Cross, Emily Almberg, Doug Smith, Adam Munn, Peter Hudson, John Heine, Dan Stahler, Shane Maloney
Near-surface “mantis” sensors and a webcam, which is part of the National PhenoCam Network, to monitor sagebrush steppe.
Date Published: March 15, 2016

Impacts of climate change on habitat quality: plant phenology interactions with animal use and fitness

Weather and climate impact terrestrial wildlife habitat through their influences on plant productivity. Plant phenology – the timing of life-history events such as green-up, flowering and senescence – provides one indicator of the timing and magnitude of productivity. Changes and variability in plant phenology in space and time are indicators of habitat quality, which is a driver of fitness...

Contacts: Geneva W Chong
Red Eagle Fire, Montana.
Date Published: March 15, 2016

Identification of Fire Refugia in Rocky Mountain Ecosystems of the U.S. and Canada: Development and Application of the Refugium Concept for Biodiversity Conservation over Large Spatial and Temporal Scales

We described the climate space of fire regimes in northwestern North America (Whitman and others 2015), and we are refining an approach to identify fire refugia – areas that do not burn or burn with lower severity through multiple fire events. We continue our collaboration to test the function of refugia for biodiversity conservation under current and future climate and fire scenarios. We...

Contacts: Geneva W Chong
Capturing juvenile bull trout by electroshocking Logging Creek and then transporting them to another lake upstream.
Date Published: March 10, 2016

Translocation of imperiled fishes: Conservation introduction of threatened bull trout in Glacier National Park

There is an urgent need to consider more aggressive and direct interventions for conservation of freshwater fishes threatened by invasive species, habitat loss, and climate change. Conservation introduction - moving species to areas outside their previous range, where conditions are predicted to be more suitable - is one type of translocation strategy that fisheries managers can use to...

Screen shot of ScienceCache mobile application's site information.
Date Published: March 9, 2016
Status: Completed

ScienceCache

If you like to geocache and you want to contribute to research, or you are a scientist looking to engage the public in repeat observations at a particular place, you should try ScienceCache.  

ScienceCache is a scientific geocaching mobile application framework.  By melding training and games into the hunt for place-based data...

Native trout in Pacific Northwest.
Date Published: March 9, 2016

Predicting climate change impacts on river ecosystems and salmonids across the Pacific Northwest: Combining vulnerability modeling, landscape genomics, and economic evaluations for conservation

Salmonids – a group of coldwater adapted fishes of enormous ecological and socio-economic value – historically inhabited a variety of freshwater habitats throughout the Pacific Northwest (PNW). Over the past century, however, populations have dramatically declined due to habitat loss, overharvest, and invasive species. Consequently, many populations are listed as threatened or endangered under...

Westslope cutthroat trout
Date Published: March 8, 2016
Status: Active

Genetic status and distribution of native westslope cutthroat trout in Glacier National Park

After 14,000 years of surviving extreme environmental events, such as floods, fires and glaciations, Glacier’s greatest native trout is at high risk of disappearing from several streams and lakes east and west of the Continental Divide. The decline of westslope cutthroat trout (Oncorhynchus clarkii lewisi; WCT) in Glacier National Park (GNP) has been attributed to the establishment of...

Pit tagging a native trout.
Date Published: March 7, 2016
Status: Active

Evolutionary mechanisms influencing the spread of hybridization: genomics, fitness and dispersal

Invasive species and hybridization (reproduction between different species or subspecies) – among the most serious threats to native species and biodiversity – provide some of the richest opportunities for “natural experiments” in evolutionary biology. New genomic technologies, combined with long-term hybridization studies in natural populations, provide exciting opportunities to advance our...

A school of native trout swim in a Montana stream.
Date Published: March 6, 2016
Status: Active

Using the past as a prelude to the future to assess climate effects on native trout across the United States

Future climate change is expected to dramatically alter the structure and function of freshwater ecosystems that support salmonid species. The response of salmonids to climate change will vary through space and time and manifest in both known and currently unknown ways. A potentially rich source of understanding of how salmonids interact with climate lies in a unified retrospective analysis of...

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Year Published: 2017

Climate-induced trends in predator–prey synchrony differ across life-history stages of an anadromous salmonid

Differential climate-induced shifts in phenology can create mismatches between predators and prey, but few studies have examined predator–prey mismatch across multiple life-history stages. We used long-term data from a warming stream with shifting salmonid migration timings to quantify intra-annual migration synchrony between predatory Dolly...

Bell, Donovan A.; Kovach, Ryan; Vulstek, Scott C.; Joyce, John E.; Tallmon, David A.
Bell, D.A., Kovach, R.P., Vulstek, S.C., Joyce, J.E., Tallmon, D.A. 2017. Climate-induced trends in predator-prey synchrony differ across life-history stages of an anadromous salmonid. Canadian Journal of Fisheries and Aquatic Sciences, 2017, 74(9): 1431-1438

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Year Published: 2017

Temporal changes in nitrogen and phosphorus concentrations with comparisons to conservation practices and agricultural activities in the Lower Grand River, Missouri and Iowa, and selected watersheds, 1969–2015

This report presents the results of a cooperative study by the U.S. Geological Survey and Missouri Department of Natural Resources to estimate total nitrogen (TN) and total phosphorus (TP) concentrations at monitoring sites within and near the Lower Grand River hydrological unit. The primary objectives of the study were to quantify temporal...

Krempa, Heather M.; Flickinger, Allison K.
Krempa, H.M., and Flickinger, A.K., 2017, Temporal changes in nitrogen and phosphorus concentrations with comparisons to conservation practices and agricultural activities in the Lower Grand River, Missouri and Iowa, and selected watersheds, 1969–2015: U.S. Geological Survey Scientific Investigations Report 2017–5067, 28 p., https://doi.org/10.3133/sir20175067.

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Year Published: 2017

A global multiproxy database for temperature reconstructions of the Common Era

Reproducible climate reconstructions of the Common Era (1 CE to present) are key to placing industrial-era warming into the context of natural climatic variability. Here we present a community-sourced database of temperature-sensitive proxy records from the PAGES2k initiative. The database gathers 692 records from 648 locations, including all...

Emile-Geay, Julian; McKay, Nicholas P.; Kaufman, Darrell S.; von Gunten, Lucien; Wang, Jianghao; Anchukaitis, Kevin J.; Abram, Nerilie J.; Addison, Jason A.; Curran, Mark A.J.; Evans, Michael N.; Henley, Benjamin J.; Hao, Zhixin; Martrat, Belen; McGregor, Helen V.; Neukom, Raphael; Pederson, Gregory T.; Stenni, Barbara; Thirumalai, Kaustubh; Werner, Johannes P.; Xu, Chenxi; Divine, Dmitry V.; Dixon, Bronwyn C.; Gergis, Joelle; Mundo, Ignacio A.; Nakatsuka, T.; Phipps, Steven J.; Routson, Cody C.; Steig, Eric J.; Tierney, Jessica E.; Tyler, Jonathan J.; Allen, Kathryn J.; Bertler, Nancy A. N.; Bjorklund, Jesper; Chase, Brian M.; Chen, Min-Te; Cook, Ed; de Jong, Rixt; DeLong, Kristine L.; Dixon, Daniel A.; Ekaykin, Alexey A.; Ersek, Vasile; Filipsson, Helena L.; Francus, Pierre; Freund, Mandy B.; Frezzotti, M.; Gaire, Narayan P.; Gajewski, Konrad; Ge, Quansheng; Goosse, Hugues; Gornostaeva, Anastasia; Grosjean, Martin; Horiuchi, Kazuho; Hormes, Anne; Husum, Katrine; Isaksson, Elisabeth; Kandasamy, Selvaraj; Kawamura, Kenji; Koc, Nalan; Leduc, Guillaume; Linderholm, Hans W.; Lorrey, Andrew M.; Mikhalenko, Vladimir; Mortyn, P. Graham; Motoyama, Hideaki; Moy, Andrew D.; Mulvaney, Robert; Munz, Philipp M.; Nash, David J.; Oerter, Hans; Opel, Thomas; Orsi, Anais J.; Ovchinnikov, Dmitriy V.; Porter, Trevor J.; Roop, Heidi; Saenger, Casey; Sano, Masaki; Sauchyn, David; Saunders, K.M.; Seidenkrantz, Marit-Solveig; Severi, Mirko; Shao, X.; Sicre, Marie-Alexandrine; Sigl, Michael; Sinclair, Kate; St. George, Scott; St. Jacques, Jeannine-Marie; Thamban, Meloth; Thapa, Udya Kuwar; Thomas, E.; Turney, Chris; Uemura, Ryu; Viau, A.E.; Vladimirova, Diana O.; Wahl, Eugene; White, James W. C.; Yu, Z.; Zinke, Jens
Emile-Geay J, Mckay NP, Kaufman DS, Gunten Von L, Wang J, Anchukaitis KJ, Abram NJ, Addison JA, Curran MAJ, Evans MN, Henley BJ, Hao Z, Martrat B, McGregor HV, Neukom R, Pederson GT, Stenni B, Thirumalai K, Werner JP, Xu C, Divine DV, Dixon BC, Gergis J, Mundo IA, Nakatsuka T, Phipps SJ, Routson CC, Steig EJ, Tierney JE, Tyler JJ, Allen KJ, Bertler NAN, Björklund J, Chase BM, Chen M-T, Cook E, de Jong R, Delong KL, Dixon DA, Ekaykin AA, Ersek V, Filipsson HL, Francus P, Freund MB, Frezzotti M, Gaire NP, Gajewski K, Ge Q, Goosse H, Gornostaeva A, Grosjean M, Horiuchi K, Hormes A, Husum K, Isaksson E, Kandasamy S, Kawamura K, Kilbourne KH, Koç N, Leduc G, Linderholm HW, Lorrey AM, Mikhalenko V, Mortyn PG, Motoyama H, Moy AD, Mulvaney R, Munz PM, Nash DJ, Oerter H, Opel T, Orsi AJ, Ovchinnikov DV, Porter TJ, Roop HA, Saenger C, Sano M, Sauchyn D, Saunders KM, Seidenkrantz M-S, Severi M, Shao X, Sicre M-A, Sigl M, Sinclair K, St George S, St-Jacques J-M, Thamban M, Kuwar Thapa U, Thomas ER, Turney C, Uemura R, Viau AE, Vladimirova DO, Wahl ER, White JWC, Yu Z, Zinke J. 2017. A global multiproxy database for temperature reconstructions of the Common Era. Scientific Data. The Author(s) SN - 4: 170088. DOI: 10.1038/sdata.2017.88.

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Year Published: 2017

A method for examining temporal changes in cyanobacterial harmful algal bloom spatial extent using satellite remote sensing

Cyanobacterial harmful algal blooms (CyanoHAB) are thought to be increasing globally over the past few decades, but relatively little quantitative information is available about the spatial extent of blooms. Satellite remote sensing provides a potential technology for identifying cyanoHABs in multiple water bodies and across geo-political...

Urquhart, Erin A. ; Schaeffer, Blake A.; Stumpf, Richard P. ; Loftin, Keith A.; Werdell, P. Jeremy
Urquahart, E.A., Schaeffer, B.A., Stumpf, R.P., Loftin, K.A., Werdell, P.J., 2017. Harmful Algae, 67, 144-152.

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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

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. .

Filter Total Items: 181
USGs Water towers
December 31, 2012

USGS Water towers

USGS Water towers at Upper Midwest Environmental Sciences Center

Prairie dog and SPV bait
August 7, 2012

Prairie dog and SPV bait

In this image, a Gunnison prairie dog eats a bait laden with the sylvatic plague vaccine. Prairie dogs in the wild are less likely to succumb to plague after they ingest peanut-butter-flavored bait that contains a vaccine against the disease.

Low streamflow on the Arkansas River at Syracuse, Kansas.
July 17, 2012

Low streamflow on the Arkansas River at Syracuse, Kansas.

This image shows a low streamflow on the Arkansas River at Syracuse.
Human activity, such as groundwater pumping, land management, reservoir operations and urbanization, has a measurable effect on streamflows in Kansas locally, regionally and statewide, according to a new USGS report.

Mount Rushmore water sampling
July 10, 2012

Water Sampling at Mount Rushmore

USGS scientists take samples of Lafferty Gulch surface water, which was analyzed for perchlorate and metals.

June 30, 2012

Water-Level Fluctuations at Sheboygan River Mouth, Sheboygan, WI

A series of time-lapse photographs capture rapid water-level fluctuations in the vicinity of Wildwood Islands in the Sheboygan River, 4.4 km upstream of Lake Michigan near Sheboygan, Wis. The fluctuations are caused the interaction of seiche-related oscillations from Lake Michigan with river flows. 
 

Photo of the Platte River near South Bend, Nebraska
May 29, 2012

Platte River from the observation tower near South Bend, Nebraska.

Platte River from the observation tower near South Bend, Nebraska.

March 3, 2012

Water-Level Fluctuations at Sheboygan River Mouth, Sheboygan, WI

A series of time-lapse photographs capture rapid water-level fluctuations in the vicinity of Wildwood Islands in the Sheboygan River, 4.4 km upstream of Lake Michigan near Sheboygan, Wis. The fluctuations are caused the interaction of seiche-related oscillations from Lake Michigan with river flows. 
 

Bald Eagle Lake, MN
September 1, 2011

Bald Eagle Lake, MN

Bald Eagle Lake near the Twin Cities, Minnesota. 

Ice Formation 6
March 10, 2011

Ice Formation on Apple Creek near Menoken, ND (06349500)

Ice formation on Apple Creek near Menoken, ND (USGS streamgage 06349500; https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=06349500&agency_cd=USGS&) on March 10, 2011. Marker (3 feet 10 inches) stands next to ice spike. The 2010-11 winter

...
Ice Formation 7
March 3, 2011

Ice Formation on Big Muddy Creek near Almont, ND (06347500)

Ice formation on Big Muddy Creek near Almont, ND (USGS streamgage 06347500;
https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=06347500&agency_cd=USGS&) on March
3, 2011. USGS personnel stands next to ice formation at Big Muddy

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Ice Formation 3
January 13, 2011

Ice Formation on Apple Creek near Menoken, ND (06349500)

Ice formation on Apple Creek near Menoken, ND (USGS streamgage 06349500;
https://waterdata.usgs.gov/nd/nwis/inventory/?site_no=06349500&agency_cd=USGS&) on
January 13, 2011. Small ice mounds developed downstream from weir on Apple

...
Lock and Dam 7 Panorama
December 31, 2010

Lock and Dam 7 Panorama

Lock and Dam 7 Panorama