Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

40807 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 398, results 9926 - 9950

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Lake Sturgeon, Lake Whitefish, and Walleye egg deposition patterns with response to fish spawning substrate restoration in the St. Clair–Detroit River system
Jason L. Fischer, Jeremy J. Pritt, Edward F. Roseman, Carson G. Prichard, Jaquelyn M. Craig, Gregory W. Kennedy, Bruce A. Manny
2018, Transactions of the American Fisheries Society (147) 79-93
Egg deposition and use of restored spawning substrates by lithophilic fishes (e.g., Lake Sturgeon Acipenser fulvescens, Lake Whitefish Coregonus clupeaformis, and Walleye Sander vitreus) were assessed throughout the St. Clair–Detroit River system from 2005 to 2016. Bayesian models were used to quantify egg abundance and presence/absence relative to site-specific variables (e.g., depth, velocity,...
The electric storm of November 1882
Jeffrey J. Love
2018, Space Weather (16) 37-46
In November 1882, an intense magnetic storm related to a large sunspot group caused widespread interference to telegraph and telephone systems and provided spectacular and unusual auroral displays. The (ring current) storm time disturbance index for this storm reached maximum −Dst ≈ 386 nT, comparable to Halloween storm of 29–31 October 2003, but...
Strain partitioning in southeastern Alaska: Is the Chatham Strait Fault active?
Daniel S. Brothers, Julie L. Elliott, James E. Conrad, Peter J. Haeussler, Jared W. Kluesner
2018, Earth and Planetary Science Letters (481) 362-371
A 1200 km-long transform plate boundary passes through southeastern Alaska and northwestern British Columbia and represents one of the most seismically active, but poorly understood continental margins of North America. Although most of the plate motion is accommodated by the right-lateral Queen Charlotte–Fairweather Fault (QCFF) System, which has produced at least...
What to eat in a warming world: do increased temperatures necessitate hazardous duty pay?
L. Embere Hall, Anna D. Chalfoun
2018, Oecologia (186) 73-84
Contemporary climate change affects nearly all biomes, causing shifts in animal distributions and resource availability. Changes in resource selection may allow individuals to offset climatic stress, thereby providing a mechanism for persistence amidst warming conditions. Whereas the role of predation risk in food choice has been studied broadly, the extent...
Range position and climate sensitivity: The structure of among-population demographic responses to climatic variation
Staci M. Amburgey, David A. W. Miller, Evan H. Campbell Grant, Tracy A. G. Rittenhouse, Michael F. Benard, Jonathan L. Richardson, Mark C. Urban, Ward Hughson, Adrianne B. Brand, Christopher J. Davis, Carmen R. Hardin, Peter W. C. Paton, Christopher J. Raithel, Rick A. Relyea, A. Floyd Scott, David K. Skelly, Dennis E. Skidds, Charles K. Smith, Earl E. Werner
2018, Global Change Biology (24) 439-454
Species’ distributions will respond to climate change based on the relationship between local demographic processes and climate and how this relationship varies based on range position. A rarely tested demographic prediction is that populations at the extremes of a species’ climate envelope (e.g., populations in areas with the highest mean...
Purpose, processes, partnerships, and products: four Ps to advance participatory socio-environmental modeling
Steven Gray, Alexey Voinov, Michael Paolisso, Rebecca Jordan, Todd BenDor, Pierre Bommel, Pierre D. Glynn, Beatrice Hedelin, Klaus Hubacek, Josh Introne, Nagesh Kolagani, Bethany Laursen, Christina Prell, Laura Schmitt-Olabisi, Alison Singer, Eleanor J. Sterling, Moira Zellner
2018, Ecological Applications (28) 46-61
Including stakeholders in environmental model building and analysis is an increasingly popular approach to understanding ecological change. This is because stakeholders often hold valuable knowledge about socio-environmental dynamics and collaborative forms of modeling produce important boundary objects used to collectively reason about environmental problems. Although the number of participatory modeling...
Advances in drainage: Selected works from the Tenth International Drainage Symposium
Jeffrey S. Strock, Christopher Hay, Matthew Helmers, Kelly A. Nelson, Gary R. Sands, R. Wayne Skaggs, Kyle R. Douglas-Mankin
2018, Transactions of the ASABE (61) 161-168
This article introduces a special collection of fourteen articles accepted from among the 140 technical presentations, posters, and meeting papers presented at the 10th International ASABE Drainage Symposium. The symposium continued in the tradition of previous symposia that began in 1965 as a forum for presenting and assessing the progress...
Environmental and ecological conditions at Arctic breeding sites have limited effects on true survival rates of adult shorebirds
Emily L. Weiser, Richard B. Lanctot, Stephen C. Brown, H. River Gates, Rebecca L. Bentzen, Joel Bety, Megan L. Boldenow, Willow B. English, Samantha E. Franks, Laura Koloski, Eunbi Kwon, Jean-François Lamarre, David B. Lank, Joseph R. Liebezeit, Laura McKinnon, Erica Nol, Jennie Rausch, Sarah T. Saalfeld, Nathan R. Senner, David H. Ward, Paul F. Wood, Brett K. Sandercock
2018, The Auk (135) 29-43
Many Arctic shorebird populations are declining, and quantifying adult survival and the effects of anthropogenic factors is a crucial step toward a better understanding of population dynamics. We used a recently developed, spatially explicit Cormack–Jolly–Seber model in a Bayesian framework to obtain broad-scale estimates of true annual survival rates for...
The size, distribution, and mobility of landslides caused by the 2015 Mw7.8 Gorkha earthquake, Nepal
Kevin Roback, Marin K. Clark, A. Joshua West, Dimitrios Zekkos, Li, Sean F. Gallen, Deepak Chamlagain, Jonathan W. Godt
2018, Geomorphology (301) 121-138
Coseismic landslides pose immediate and prolonged hazards to mountainous communities, and provide a rare opportunity to study the effect of large earthquakes on erosion and sediment budgets. By mapping landslides using high-resolution satellite imagery, we find that the 25 April 2015 Mw7.8 Gorkha earthquake and aftershock sequence produced at least...
Demography of the Pacific walrus (Odobenus rosmarus divergens) in a changing Arctic
Rebecca L. Taylor, Mark S. Udevitz, Chadwick V. Jay, John J. Citta, Lori T. Quakenbush, Patrick R. Lemons, Jonathan A. Snyder
2018, Marine Mammal Science (34) 54-86
The Pacific walrus (Odobenus rosmarus divergens) is a candidate to be listed as an endangered species under United States law, in part, because of climate change‐related concerns. While the population was known to be declining in the 1980s and 1990s, its recent status has not been determined. We developed Bayesian...
The role of driving factors in historical and projected carbon dynamics of upland ecosystems in Alaska
Hélène Genet, Yujie He, Zhou Lyu, A. David McGuire, Qianlai Zhuang, Joy S. Clein, David D'Amore, Alec Bennett, Amy Breen, Frances Biles, Eugénie S. Euskirchen, Kristofer Johnson, Tom Kurkowski, Svetlana Schroder, Neal J. Pastick, T. Scott Rupp, Bruce K. Wylie, Yujin Zhang, Xiaoping Zhou, Zhiliang Zhu
2018, Ecological Applications (28) 5-27
It is important to understand how upland ecosystems of Alaska, which are estimated to occupy 84% of the state (i.e., 1,237,774 km2), are influencing and will influence state‐wide carbon (C) dynamics in the face of ongoing climate change. We coupled fire disturbance and biogeochemical models to assess the relative effects of...
Detecting geothermal anomalies and evaluating LST geothermal component by combining thermal remote sensing time series and land surface model data
Mireia Romaguera, R. Greg Vaughan, J. Ettema, E. Izquierdo-Verdiguier, C. A. Hecker, van der Meer
2018, Remote Sensing of Environment (204) 534-552
This paper explores for the first time the possibilities to use two land surface temperature (LST) time series of different origins (geostationary Meteosat Second Generation satellite data and Noah land surface modelling, LSM), to detect geothermal anomalies and extract the geothermal component of LST, the LSTgt. We hypothesize that...
Implementing the 2012 North American Waterfowl Management Plan revision: Populations, habitat, and people
Dale D. Humburg, Michael G. Anderson, Michael G. Brasher, Michael F. Carter, John M. Eadie, David C. Fulton, Fred A. Johnson, Michael C. Runge, Mark P. Vrtiska
2018, Journal of Wildlife Management (82) 275-286
The North American Waterfowl Management Plan (NAWMP) has established a model for wildlife conservation planning over the last 3 decades. Management at a continental scale, leveraged funding, regional partnerships, and a strong science basis have been notable features. Periodic updates to the NAWMP occurred since implementation in 1986; however, a...
A land product characterization system for comparative analysis of satellite data and products
Kevin Gallo, Gregory L. Stensaas, John L. Dwyer, Ryan Longhenry
2018, Remote Sensing (10)
A Land Product Characterization System (LPCS) has been developed to provide land data and products to the community of individuals interested in validating space-based land products by comparing them with similar products available from other sensors or surface-based observations. The LPCS facilitates the application of global multi-satellite and in...
Managing the water-energy-food nexus: Opportunities in Central Asia
Shokhrukh Jaliliv, Saud A. Amer, Frank Ward
2018, Journal of Hydrology (557) 407-425
This article examines impacts of infrastructure development and climate variability on economic outcomes for the Amu Darya Basin in Central Asia. It aims to identify the most economically productive mix of expanded reservoir storage for economic benefit sharing to occur, in...
Constraints on friction, dilatancy, diffusivity, and effective stress from low-frequency earthquake rates on the deep San Andreas Fault
Nicholas M. Beeler, Amanda Thomas, Roland Bürgmann, David R. Shelly
2018, Journal of Geophysical Research (123) 583-605
Families of recurring low-frequency earthquakes (LFEs) within nonvolcanic tremor on the San Andreas Fault in central California are sensitive to tidal stresses. LFEs occur at all levels of the tides, are strongly correlated and in phase with the ~200 Pa shear stresses, and weakly and not systematically correlated with the ~2 kPa...
Punctuated sediment discharge during early Pliocene birth of the Colorado River: Evidence from regional stratigraphy, sedimentology, and paleontology
Rebecca J. Dorsey, Brennan O’Connell, Kristin McDougall-Reid, Mindy B. Homan
2018, Sedimentary Geology (363) 1-33
The Colorado River in the southwestern U.S. provides an excellent natural laboratory for studying the origins of a continent-scale river system, because deposits that formed prior to and during river initiation are well exposed in the lower river valley and nearby basinal sink. This paper presents a synthesis of...
Equilibrium and non-equilibrium controls on the abundances of clumped isotopologues of methane during thermogenic formation in laboratory experiments: Implications for the chemistry of pyrolysis and the origins of natural gases
Yanhua Shuai, Peter M.J. Douglas, Shuichang Zhang, Daniel A. Stolper, Geoffrey S. Ellis, Michael Lawson, Michael Lewan, Michael Formolo, Jingkui Mi, Kun He, Guoyi Hu, John M. Eiler
2018, Geochimica et Cosmochimica Acta (223) 159-174
Multiply isotopically substituted molecules (‘clumped’ isotopologues) can be used as geothermometers because their proportions at isotopic equilibrium relative to a random distribution of isotopes amongst all isotopologues are functions of temperature. This has allowed measurements of clumped-isotope abundances to be used to constrain formation temperatures of several natural materials. However,...
Erratum: Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models
Kevin J. Gutzwiller, Joseph D. White, Wylie C. Barrow Jr., Lori A. Randall
2018, Conservation Biology (32) 258-259
This article corrects: Understanding Interaction Effects of Climate Change and Fire Management on Bird Distributions through Combined Process and Habitat Models Volume 25, Issue 3, 536–546, Article first published online: 28 April 2011...
Integrating continuous stocks and flows into state-and-transition simulation models of landscape change
Colin J. Daniel, Benjamin M. Sleeter, Leonardo Frid, Marie-Josée Fortin
2018, Methods in Ecology and Evolution (9) 1133-1143
State-and-transition simulation models (STSMs) provide a general framework for forecasting landscape dynamics, including projections of both vegetation and land-use/land-cover (LULC) change. The STSM method divides a landscape into spatially-referenced cells and then simulates the state of each cell forward in time, as a discrete-time stochastic process using a Monte Carlo...
Are ranger patrols effective in reducing poaching-related threats within protected areas?
Jennnifer F. Moore, Felix Mulindahabi, Michel K. Masozera, James D. Nichols, James E. Hines, Ezechiel Turikunkiko, Madan K. Oli
2018, Journal of Applied Ecology (55) 99-107
Poaching is one of the greatest threats to wildlife conservation world-wide. However, the spatial and temporal patterns of poaching activities within protected areas, and the effectiveness of ranger patrols and ranger posts in mitigating these threats, are relatively unknown.We used 10 years (2006–2015) of ranger-based monitoring data and...
Making do with less: Must sparse data preclude informed harvest strategies for European waterbirds?
Fred A. Johnson, Mikko Alhainen, Anthony D. Fox, Jesper Madsen, Matthieu Guillemain
2018, Ecological Applications (28) 427-441
The demography of many European waterbirds is not well understood because most countries have conducted little monitoring and assessment, and coordination among countries on waterbird management has little precedent. Yet intergovernmental treaties now mandate the use of sustainable, adaptive harvest strategies, whose development is challenged by a paucity of demographic...
To reduce the global burden of human schistosomiasis, use ‘old fashioned’ snail control
Susanne H. Sokolow, Chelsea L. Wood, Isabel J. Jones, Kevin D. Lafferty, Armand Kuris, Michael H. Hsieh, Giulio A. De Leo
2018, Trends in Parasitology (34) 23-40
Control strategies to reduce human schistosomiasis have evolved from ‘snail picking’ campaigns, a century ago, to modern wide-scale human treatment campaigns, or preventive chemotherapy. Unfortunately, despite the rise in preventive chemotherapy campaigns, just as many people suffer from schistosomiasis today as they did 50 years ago. Snail control can complement...
Ore-forming adakitic porphyry produced by fractional crystallization of oxidized basaltic magmas in a subcrustal chamber (Jiamate, East Junggar, NW China)
Tao Hong, Xing-Wang Xu, Jungang Gao, Stephen Peters, Di Zhang, Reyaniguli Jielili, Peng Xiang, Hao Li, Chu Wu, Jun You, Jie Liu, Qiang Ke
2018, LITHOS (296-299) 96-112
Adakitic intrusions are supposed to have a close genetic and spatial relationship to porphyry Cu deposits. However, the genesis of adakitic intrusions is still under dispute. Here, we describe newly discovered intrusive complex rocks, which are composed of ore-bearing, layered magnetite-bearing gabbroic and adakitic rocks in Jiamate, East Junggar,...