Behavioral and reproductive effects of bird-borne data logger attachment on Brown Pelicans (Pelecanus occidentalis) on three temporal scales
Juliet S. Lamb, Yvan G. Satge, Christine V. Fiorello, Patrick G.R. Jodice
2017, Journal of Ornithology (158) 617-627
Although the use of bird-borne data loggers has become widespread in avian field research, the effects of capture and transmitter attachment on behavior and demographic rates are not often measured. Tag- and capture-induced effects on individual behavior, survival and reproduction may limit extrapolation of transmitter data to wider populations. However,...
Element migration of pyrites during ductile deformation of the Yuleken porphyry Cu deposit (NW-China)
Tao Hong, Xing-Wang Xu, Jungang Gao, Stephen Peters, Jilei Li, Mingjian Cao, Peng Xiang, Chu Wu, Jun You
2017, Ore Geology Reviews (100) 205-219
The strongly deformed Yuleken porphyry Cu deposit (YPCD) occurs in the Kalaxiangar porphyry Cu belt (KPCB), which occupies the central area of the Central Asian Orogenic Belt (CAOB) between the Sawu’er island arc and the Altay Terrane in northern Xinjiang. The YPCD is one of several typical subduction-related deposits in...
Extending the habitat concept to the airspace
Robert H. Diehl, Anna C. Peterson, Rachel T. Bolus, Douglas H. Johnson
2017, Book chapter, Aeroecology
Habitat is one of the most familiar and fundamental concepts in the fields of ecology, animal behavior, and wildlife conservation and management. Humans interact with habitats through their senses and experiences and education to such a degree that their perceptions of habitat have become second nature. For this reason, it...
Hydrogeologic characteristics and geospatial analysis of water-table changes in the alluvium of the lower Arkansas River Valley, southeastern Colorado, 2002, 2008, and 2015
Michael J. Holmberg
2017, Scientific Investigations Map 3378
The U.S. Geological Survey in cooperation with the Lower Arkansas Valley Water Conservancy District measures groundwater levels periodically in about 100 wells completed in the alluvial material of the Arkansas River Valley in Pueblo, Crowley, Otero, Bent, and Prowers Counties in southeastern Colorado, of which 95 are used for the...
Timing of autumn migration of Sora (Porzana carolina) in Missouri
Auriel M. V. Fournier, Doreen C. Mengel, Edward E. Gbur, David G. Krementz
2017, Wilson Journal of Ornithology (129) 765-770
Monitoring and conserving waterbirds, including Sora (Porzana carolina), in Missouri, is constrained by the lack of information on migration phenology. We performed nocturnal distance sampling surveys by ATV across 11 state and federal managed wetlands in Missouri, USA from 2012–2015 to compare the timing of Sora' autumn migration among years....
Testing the limits of temporal stability: Willingness to pay values among Grand Canyon whitewater boaters across decades
Chris J. Neher, John Duffield, Lucas S. Bair, David A. Patterson, Katherine Neher
2017, Water Resources Research (53) 10108-10120
We directly compare trip willingness to pay (WTP) values between 1985 and 2015 stated preference surveys of private party Grand Canyon boaters using identically designed valuation methods. The temporal gap of 30 years between these two studies is well beyond that of any tests of WTP temporal stability in the...
Control of landslide volume and hazard by glacial stratigraphic architecture, Northwest Washington state, USA
Jonathan Perkins, Mark E. Reid, Kevin M. Schmidt
2017, Geology (45) 1139-1142
Landslide volumes span many orders of magnitude, but large-volume slides tend to travel farther and consequently can pose a greater hazard. In northwest Washington State, USA, a landscape abounding with landslides big and small, the recent occurrence of the large-volume and tragically deadly State Route 530 (Oso) landslide is a stark reminder of...
Assessing the impacts of future climate conditions on the effectiveness of winter cover crops in reducing nitrate loads into the Chesapeake Bay Watershed using SWAT model
Sangchul Lee, Ali M. Sadeghi, In-Young Yeo, Gregory W. McCarty, W. Dean Hively
2017, Transactions of the American Society of Agricultural and Biological Engineers (60) 1939-1955
Winter cover crops (WCCs) have been widely implemented in the Coastal Plain of the Chesapeake Bay watershed (CBW) due to their high effectiveness at reducing nitrate loads. However, future climate conditions (FCCs) are expected to exacerbate water quality degradation in the CBW by increasing nitrate loads from agriculture....
Effects of lava heating on volatile-rich slopes on Io
Colin M. Dundas
2017, Journal of Geophysical Research E: Planets (122) 546-559
The upper crust of Io may be very rich in volatile sulfur and SO2. The surface is also highly volcanically active, and slopes may be warmed by radiant heat from the lava. This is particularly the case in paterae, which commonly host volcanic eruptions and long-lived lava lakes. Paterae slopes...
Host susceptibility to snake fungal disease is highly dispersed across phylogenetic and functional trait space
Frank T. Burbrink, Jeffrey M. Lorch, Karen R. Lips
2017, Science Advances (3)
Emerging infectious diseases (EIDs) reduce host population sizes, cause extinction, disassemble communities, and have indirect negative effects on human well-being. Fungal EIDs have reduced population abundances in amphibians and bats across many species over large areas. The recent emergence of snake fungal disease (SFD) may have caused declines in some...
Estimating the impact of oyster restoration scenarios on transient fish production
Elizabeth McCoy, Stuart R. Borrett, Megan K. LaPeyre, Bradley J. Peterson
2017, Restoration Ecology (25) 798-809
Oyster reef restoration projects are increasing in number both to enhance oyster density and to retain valuable ecosystem services provided by oyster reefs. Although some oyster restoration projects have demonstrated success by increasing density and biomass of transient fish, it still remains a challenge to quantify the effects of oyster...
A general modeling framework for describing spatially structured population dynamics
Christine Sample, John Fryxell, Joanna A. Bieri, Paula Federico, Julia Earl, Ruscena Wiederholt, Brady J. Mattsson, Tyler Flockhart, Sam Nicol, James E. Diffendorfer, Wayne E. Thogmartin, Richard A. Erickson, D. Ryan Norris
2017, Ecology and Evolution (8) 493-508
Variation in movement across time and space fundamentally shapes the abundance and distribution of populations. Although a variety of approaches model structured population dynamics, they are limited to specific types of spatially structured populations and lack a unifying framework. Here, we propose a unified network-based framework sufficiently novel in its...
Operationalizing the telecoupling framework for migratory species using the spatial subsidies approach to examine ecosystem services provided by Mexican free-tailed bats
Laura Lopez Hoffman, James E. Diffendorfer, Ruscena Widerholt, Wayne E. Thogmartin, Gary McCraken, Rodrigo Medellin, Kenneth J. Bagstad, Amy Russell, Darius J. Semmens
2017, Ecology and Society (22)
Drivers of environmental change in one location can have profound effects on ecosystem services and human well-being in distant locations, often across international borders. The telecoupling provides a conceptual framework for describing these interactions—for example, locations can be defined as sending areas (sources of flows of ecosystem services, energy, or...
Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water
Colin M. Dundas, Alfred S. McEwen, Matthew Chojnacki, Moses P. Milazzo, Shane Byrne, Jim McElwaine, Anna Urso
2017, Nature Geoscience (10) 903-907
Recent liquid water flow on Mars has been proposed based on geomorphological features, such as gullies. Recurring slope lineae — seasonal flows that are darker than their surroundings — are candidate locations for seeping liquid water on Mars today, but their formation mechanism remains unclear. Topographical analysis shows that the...
Geologic overview of the Mars Science Laboratory rover mission at the Kimberley, Gale crater, Mars
Melissa Rice, Sanjeev Gupta, Allan H. Treiman, Kathryn M. Stack, Fred J. Calef, Lauren A. Edgar, John P. Grotzinger, Nina L. Lanza, Laetitia Le Deit, Jeremie Lasue, Kirsten L. Siebach, Ashwin R. Vasavada, Roger C. Wiens, Josh Williams
2017, Journal of Geophysical Research E: Planets (122) 2-20
The Mars Science Laboratory (MSL) Curiosity rover completed a detailed investigation at the Kimberley waypoint within Gale crater from sols 571-634 using its full science instrument payload. From orbital images examined early in the Curiosity mission, the Kimberley region had been identified as a high-priority science target based on its...
Geology and assessment of undiscovered oil and gas resources of the West Greenland-East Canada Province, 2008
Christopher J. Schenk
Thomas E. Moore, Donald L. Gautier, editor(s)
2017, Professional Paper 1824-J
The U.S. Geological Survey (USGS) recently assessed the potential for undiscovered oil and gas resources of the West Greenland-East Canada Province as part of the USGS Circum-Arctic Resource Appraisal program. The province lies in the offshore area between western Greenland and eastern Canada and includes Baffin Bay, Davis Strait, Lancaster...
Geology and assessment of undiscovered oil and gas resources of the Hope Basin Province, 2008
Kenneth J. Bird, David W. Houseknecht, Janet K. Pitman
Thomas E. Moore, Donald L. Gautier, editor(s)
2017, Professional Paper 1824-D
The Hope Basin, an independent petroleum province that lies mostly offshore in the southern Chukchi Sea north of the Chukotka and Seward Peninsulas and south of Wrangel Island, the Herald Arch, and the Lisburne Peninsula, is the largest in a series of postorogenic (successor) basins in the East Siberian-Chukchi Sea...
Geologic map of the Washington West 30’ × 60’ quadrangle, Maryland, Virginia, and Washington D.C.
Peter T. Lyttle, John N. Aleinikoff, William C. Burton, E. Allen Crider Jr., Avery A. Drake Jr., Albert J. Froelich, J. Wright Horton Jr., Gregorios Kasselas, Robert B. Mixon, Lucy McCartan, Arthur E. Nelson, Wayne L. Newell, Louis Pavlides, David S. Powars, C. Scott Southworth, Robert E. Weems
2017, Open-File Report 2017-1142
The Washington West 30’ × 60’ quadrangle covers an area of approximately 4,884 square kilometers (1,343 square miles) in and west of the Washington, D.C., metropolitan area. The eastern part of the area is highly urbanized, and more rural areas to the west are rapidly being developed. The area lies...
Graphite in the Bishop Tuff and its effect on postcaldera oxygen fugacity
Edward Hildreth, Juliet Ryan-Davis, Benjamin Harlow
2017, Geosphere (14) 343-359
Several cubic kilometers of Paleozoic graphite-bearing argillitic country rocks are present as lithic fragments in Bishop Tuff ignimbrite and fallout. The lithics were entrained by the 650 km3 of rhyolite magma that vented during the 5- to 6-day-long, caldera-forming eruption at Long Valley, California. The caldera is floored by a 350...
Human presence diminishes the importance of climate in driving fire activity across the United States
Alexandra D. Syphard, Jon E. Keeley, Anne Hopkins Pfaff, Ken Ferschweiler
2017, PNAS (114) 13750-13755
Growing human and ecological costs due to increasing wildfire are an urgent concern in policy and management, particularly given projections of worsening fire conditions under climate change. Thus, understanding the relationship between climatic variation and fire activity is a critically important scientific question. Different factors limit fire behavior in different...
Controls of multi-modal wave conditions in a complex coastal setting
Christie Hegermiller, Ana C. Rueda, Li H. Erikson, Patrick L. Barnard, J.A.A. Antolinez, Fernando J. Mendez
2017, Geophysical Research Letters (44) 12315-12323
Coastal hazards emerge from the combined effect of wave conditions and sea level anomalies associated with storms or low-frequency atmosphere-ocean oscillations. Rigorous characterization of wave climate is limited by the availability of spectral wave observations, the computational cost of dynamical simulations, and the ability to link wave-generating atmospheric patterns with...
Declining survival of black brant from subarctic and arctic breeding areas
Alan G. Leach, David H. Ward, James S. Sedinger, Mark S. Lindberg, W. Sean Boyd, Jerry W. Hupp, Robert J. Ritchie
2017, Journal of Wildlife Management (81) 1210-1218
Since the mid 1990s, the number of black brant (Branta bernicla nigricans; brant) nests on the Yukon‐Kuskokwim Delta (YKD), Alaska, USA, the historically predominant breeding area of brant, has declined steadily. This has caused researchers and managers to question if arctic breeding populations can compensate for the reduction in brant...
A simulation method for combining hydrodynamic data and acoustic tag tracks to predict the entrainment of juvenile salmonids onto the Yolo Bypass under future engineering scenarios
Aaron R. Blake, Paul Stumpner, Jon R. Burau
2017, Report
During water year 2016 the U.S. Geological Survey California Water Science Center (USGS) collaborated with the California Department of Water Resources (DWR) to conduct a joint hydrodynamic and fisheries study to acquire data that could be used to evaluate the effects of proposed modifications to the Fremont Weir on outmigrating...
Investigation of input reduction techniques for morphodynamic modeling of complex inlets with baroclinic forcing
Guy R. Gelfenbaum, Edwin Elias, Andrew W. Stevens
2017, Conference Paper, Coastal Dynamics 2017, Proceedings
The Mouth of the Columbia River (MCR) is a complex estuary inlet system characterized by a buoyant plume created by high freshwater flows from the Columbia River into the Pacific Ocean. Data obtained during two major field campaigns have resulted in a comprehensive dataset of hydrodynamics and sediment transport under high (2013)...
Production and evaluation of YY-male Brook Trout to eradicate nonnative wild brook trout populations
Patrick Kennedy, Daniel J. Schill, Kevin A. Meyer, Matthew R. Campbell, Ninh V. Vu, Michael J. Hansen
2017, Conference Paper, Wild Trout Symposium XII—Science, Politics, and Wild Trout Management: Who’s Driving and Where Are We Going?
Nonnative Brook Trout Salvelinus fontinalis were introduced throughout western North America in the early 1900s, resulting in widespread self-sustaining populations that are difficult to eradicate and often threaten native salmonid populations. A novel approach for their eradication involves use of YY male (MYY) Brook Trout (created in the hatchery by...
