Temporal variation of tectonic tremor activity in southern Taiwan around the 2010 ML6.4 Jiashian Earthquake
Kevin Chao, Zhigang Peng, Ya-Ju Hsu, Kazushige Obara, Kuo-En Ching, Chunquan Wu, Hsin-Chieh Pu, Peih-Lin Leu, Aaron Wech
2018, Journal of Geophysical Research B: Solid Earth (122) 5417-5434
Deep tectonic tremor, which is extremely sensitive to small stress variations, could be used to monitor fault-zone processes during large earthquake cycles and aseismic processes before large earthquakes. In this study, we develop an algorithm for the automatic detection and location of tectonic tremor beneath the southern Central Range of Taiwan and examine...
Growth strategies and threshold responses to water deficit modulate effects of warming on tree seedlings from forest to alpine
Brynne E. Lazarus, Cristina Castanha, Matthew J. Germino, Lara M. Kueppers, Andrew B. Moyes
2018, Journal of Ecology (106) 571-585
1.Predictions of upslope range shifts for tree species with warming are based on assumptions of moisture stress at lower elevation limits and low temperature stress at high elevation limits. However, recent studies have shown that warming can reduce tree seedling establishment across the entire gradient from subalpine forest to alpine...
An empirical perspective for understanding climate change impacts in Switzerland
Paul D. Henne, Moritz Bigalke, Ulf Buntgen, Daniele Colombaroli, Marco Conedera, Urs Feller, David Frank, Jurg Fuhrer, Martin Grosjean, Oliver Heiri, Jurg Luterbacher, Adrien Mestrot, Andreas Rigling, Ole Rossler, Christian Rohr, This Rutishauser, Margit Schwikowski, Andreas Stampfli, Sonke Szidat, Jean-Paul Theurillat, Rolf Weingartner, Wolfgan Wilcke, Willy Tinner
2018, Regional Environmental Change (18) 205-221
Planning for the future requires a detailed understanding of how climate change affects a wide range of systems at spatial scales that are relevant to humans. Understanding of climate change impacts can be gained from observational and reconstruction approaches and from numerical models that apply existing knowledge to climate change...
Reclamation after oil and gas development does not speed up succession or plant community recovery in big sagebrush ecosystems in Wyoming
Caitlin M. Rottler, Ingrid C. Burke, Kyle A. Palmquist, John B. Bradford, William K. Lauenroth
2018, Restoration Ecology (26) 114-123
Article for intended outlet: Restoration Ecology. Abstract: Reclamation is an application of treatment(s) following a disturbance to promote succession and accelerate the return of target conditions. Previous studies have framed reclamation in the context of succession by studying its effectiveness in re-establishing late-successional plant communities. Re-establishment of these plant communities...
Used-habitat calibration plots: A new procedure for validating species distribution, resource selection, and step-selection models
John R. Fieberg, James D. Forester, Garrett M. Street, Douglas H. Johnson, Althea A. ArchMiller, Jason Matthiopoulos
2018, Ecography (41) 737-752
“Species distribution modeling” was recently ranked as one of the top five “research fronts” in ecology and the environmental sciences by ISI's Essential Science Indicators (Renner and Warton 2013), reflecting the importance of predicting how species distributions will respond to anthropogenic change. Unfortunately, species distribution models (SDMs) often perform poorly...
Evaluating stocking efficacy in an ecosystem undergoing oligotrophication
Yu-Chun Kao, Mark W. Rogers, David B. Bunnell
2018, Ecosystems (21) 600-618
Oligotrophication has negatively affected fisheries production in many freshwater ecosystems and could conceivably reduce the efficacy of stockings used to enhance fisheries. In Lake Michigan, offshore oligotrophication has occurred since the 1970s, owing to reductions in total phosphorus (TP) inputs and nearshore sequestration of TP by nonindigenous dreissenid mussels. We...
The influence of data characteristics on detecting wetland/stream surface-water connections in the Delmarva Peninsula, Maryland and Delaware
Melanie K. Vanderhoof, Hayley Distler, Megan W. Lang, Laurie C. Alexander
2018, Wetlands Ecology and Management (26) 63-86
The dependence of downstream waters on upstream ecosystems necessitates an improved understanding of watershed-scale hydrological interactions including connections between wetlands and streams. An evaluation of such connections is challenging when, (1) accurate and complete datasets of wetland and stream locations are often not available and (2) natural variability in surface-water...
Shaler: in situ analysis of a fluvial sedimentary deposit on Mars
Lauren A. Edgar, Sanjeev Gupta, David M. Rubin, Kevin W. Lewis, Gary A. Kocurek, Ryan B. Anderson, James F. Bell III, Gilles Dromart, Kenneth S. Edgett, John P. Grotzinger, Craig Hardgrove, Linda C. Kah, Richard A. LeVeille, Michael C. Malin, Nicholas Mangold, Ralph E. Milliken, Michelle Minitti, Marisa C. Palucis, Melissa Rice, Scott K. Rowland, Juergen Schieber, Kathryn M. Stack, Dawn Y. Sumner, Roger C. Wiens, Rebecca M.E. Williams, Amy J. Williams
2018, Sedimentology (65) 96-122
This paper characterizes the detailed sedimentology of a fluvial sandbody on Mars for the first time and interprets its depositional processes and palaeoenvironmental setting. Despite numerous orbital observations of fluvial landforms on the surface of Mars, ground-based characterization of the sedimentology of such fluvial deposits has not previously been possible....
Repeated drought alters resistance of seed bank regeneration in baldcypress swamps of North America
Ting Lei, Beth A. Middleton
2018, Ecosystems (21) 190-201
Recurring drying and wetting events are likely to increase in frequency and intensity in predicted future droughts in the central USA and alter the regeneration potential of species. We explored the resistance of seed banks to successive droughts in 53 sites across the nine locations in baldcypress swamps in the...
Defining and classifying migratory habitats as sources and sinks: The migratory pathway approach
Richard A. Erickson, James E. Diffendorfer, Ryan Norris, Joanna A. Bieri, Julia Earl, Paula Federico, John Fryxell, Kevin Long, Brady J. Mattsson, Christine Sample, Ruscena Wiederholt, Wayne E. Thogmartin
2018, Journal of Applied Ecology (55) 108-117
Understanding and conserving migratory species requires a method for characterizing the seasonal flow of animals among habitats. Source-sink theory describes the metapopulation dynamics of species by classifying habitats as population sources (i.e. net contributors) or sinks (i.e. net substractors). Migratory species may have non-breeding habitats important to the species...
Depletion mapping and constrained optimization to support managing groundwater extraction
Michael N. Fienen, Kenneth R. Bradbury, Maribeth Kniffin, Paul M. Barlow
2018, Groundwater (56) 18-31
Groundwater models often serve as management tools to evaluate competing water uses including ecosystems, irrigated agriculture, industry, municipal supply, and others. Depletion potential mapping—showing the model-calculated potential impacts that wells have on stream baseflow—can form the basis for multiple potential management approaches in an oversubscribed basin. Specific management approaches can...
Evidence of sound production by spawning lake trout (Salvelinus namaycush) in lakes Huron and Champlain
Nicholas S. Johnson, Dennis Higgs, Thomas R. Binder, J. Ellen Marsden, Tyler John Buchinger, Linnea Brege, Tyler Bruning, Steve A. Farha, Charles C. Krueger
2018, Canadian Journal of Fisheries and Aquatic Sciences (75) 429-438
Two sounds associated with spawning lake trout (Salvelinus namaycush) in lakes Huron and Champlain were characterized by comparing sound recordings to behavioral data collected using acoustic telemetry and video. These sounds were named growls and snaps, and were heard on lake trout spawning reefs, but not on a non-spawning reef,...
Crater density differences: Exploring regional resurfacing, secondary crater populations, and crater saturation equilibrium on the moon
R. Z. Povilaitis, M. S. Robinson, C. H. van der Bogert, Harald Hiesinger, H. M. Meyer, Lillian R. Ostrach
2018, Planetary and Space Science (162) 41-51
The global population of lunar craters >20 km in diameter was analyzed by Head et al., (2010) to correlate crater distribution with resurfacing events and multiple impactor populations. The work presented here extends the global crater distribution analysis to smaller craters (5–20 km diameters, n = 22,746). Smaller craters form at a higher rate than...
Groundwater and streamflow information program Kansas Cooperative Water Science since 1895
Colin C. Painter, Ariele R. Kramer, Brian P. Kelly, Chantelle Davis
2018, General Information Product 176
The U.S. Geological Survey, in cooperation with State, local, and other Federal agencies, operates a network of streamgages throughout the State of Kansas. Data provided by this network are used to forecast floods, operate reservoirs, develop water policy, administer regulation of water, and perform interpretive analyses of streamflow. This data...
Microhabitat and biology of Sphaerium striatinum in a central New York stream
Dawn E. Dittman, James H. Johnson, Christopher C. Nack
2018, Hydrobiologia (810) 367-374
In many lotic systems, drastic declines in freshwater bivalve populations, including fingernail clams (Sphaeriidae), have created concerns about biodiversity and future ecosystem services. We examined the local occurrence of the historically common fingernail clam, Sphaerium striatinum, in a central New York stream. We sampled the density of sphaeriids...
Science programs in Kansas
Ariele R. Kramer, Brian P. Kelly
2018, General Information Product 175
The U.S. Geological Survey (USGS) is a non-regulatory Earth science agency within the Department of the Interior that provides impartial scientific information to describe and understand the health of our ecosystems and environment; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and...
Global trends in mineral commodities for advanced technologies
Steven M. Fortier, Christine Lyn Thomas, Erin A. McCullough, Amy Tolcin
2018, Natural Resources Research (27) 191-200
The U.S. Geological Survey National Minerals Information Center (NMIC) is the U.S. Government agency tasked with the collection, analysis, and dissemination of information on the production, consumption, import, export, and other measures of the flows of non-fuel mineral commodities of importance to the U.S. economy and national security. The NMIC...
Fungal endophytes from seeds of invasive, non-native Phragmites australis and their potential role in germination and seedling growth
Zackery R. C. Shearin, Matthew Filipek, Rushvi Desai, Wesley A. Bickford, Kurt P. Kowalski, Keith Clay
2018, Plant and Soil (422) 183-194
Background and aimsWe characterized fungal endophytes of seeds of invasive, non-native Phragmites from three sites in the Great Lakes region to determine if fungal symbiosis could contribute to invasiveness through their effects on seed germination and seedling growth.MethodsField-collected...
Spawning site fidelity and apparent annual survival of walleye (Sander vitreus) differ between a Lake Huron and Lake Erie tributary
Todd A. Hayden, Thomas Binder, Christopher Holbrook, Christopher Vandergoot, David G. Fielder, Steven J. Cooke, John M. Dettmers, Charles C. Krueger
2018, Ecology of Freshwater Fish (27) 339-349
Fidelity to spawning habitats can maximise reproductive success of fish by synchronising movements to sites of previous recruitment. To determine the role of reproductive fidelity in structuring walleye Sander vitreus populations in the Laurentian Great Lakes, we used acoustic telemetry combined with Cormack–Jolly–Seber capture–recapture models to estimate spawning site fidelity...
Rapid evolution meets invasive species control: The potential for pesticide resistance in sea lamprey
Erin S. Dunlop, Robert L. McLaughlin, Jean V. Adams, Michael L. Jones, Oana Birceanu, Mark R. Christie, Lori A. Criger, Julia Hinderer, Robert M. Hollingworth, Nicholas S. Johnson, Stephen R. Lantz, Weiming Li, James R. Miller, Bruce J. Morrison, David Mota-Sanchez, Andrew M. Muir, Maria S. Sepulveda, Todd B. Steeves, Lisa Walter, Erin Westman, Isaac Wirgin, Michael P. Wilkie
2018, Canadian Journal of Fisheries and Aquatic Sciences (75) 152-168
Rapid evolution of pest, pathogen and wildlife populations can have undesirable effects; for example, when insects evolve resistance to pesticides or fishes evolve smaller body size in response to harvest. A destructive invasive species in the Laurentian Great Lakes, the sea lamprey (Petromyzon marinus) has been controlled with the pesticide...
Interoperability in planetary research for geospatial data analysis
Trent M. Hare, Angelo P. Rossi, Alessandro Frigeri, Chiara Marmo
2018, Planetary and Space Science (150) 36-42
For more than a decade there has been a push in the planetary science community to support interoperable methods for accessing and working with geospatial data. Common geospatial data products for planetary research include image mosaics, digital elevation or terrain models, geologic maps,...
Diet of the Antillean manatee (Trichechus manatus manatus) in Belize, Central America
Aarin Conrad Allen, Cathy A. Beck, Robert K. Bonde, James A. Powell, Nicole Auil Gomez
2018, Journal of the Marine Biological Association of the United Kingdom (98) 1831-1840
Belize contains important habitat for Antillean manatees (Trichechus manatus manatus) and provides refuge for the highest known population density of this subspecies. As these animals face impending threats, knowledge of their dietary habits can be used to interpret resource utilization. The contents of 13 mouth, 6 digestive tract (stomach, duodenum...
Shallow bedrock limits groundwater seepage-based headwater climate refugia
Martin A. Briggs, John W. Lane Jr., Craig D. Snyder, Eric A. White, Zachary Johnson, David L. Nelms, Nathaniel P. Hitt
2018, Limnologica - Ecology and Management of Inland Waters (68) 142-156
Groundwater/surface-water exchanges in streams are inexorably linked to adjacent aquifer dynamics. As surface-water temperatures continue to increase with climate warming, refugia created by groundwater connectivity is expected to enable cold water fish species to survive. The shallow alluvial aquifers that source groundwater seepage to headwater streams, however, may also be...
Pore-types and pore-network evolution in Upper Devonian-Lower Mississippian Woodford and Mississippian Barnett mudstones: Insights from laboratory thermal maturation and organic petrology
Lucy T. Ko, Stephen C. Ruppel, Robert G. Loucks, Paul C. Hackley, Tongwei Zhang, Deyong Shao
2018, International Journal of Coal Geology (190) 3-28
Pore-evolution models from immature organic-matter (OM) -rich Barnett (0.42%Ro) and Woodford (0.49%Ro) mudstones were compared with models previously developed from low-maturity OM-lean Boquillas (Eagle Ford-equivalent) mudstones to investigate whether (1) different mineralogy (siliceous vs. calcareous) exerts different catalytic and sorption effects and influences OM-pore origin and evolution;...
Focused seismicity triggered by flank instability on Kīlauea's Southwest Rift Zone
Josiah Judson, Weston Thelen, Tim Greenfield, Robert G. White
2018, Journal of Volcanology and Geothermal Research (353) 95-101
Swarms of earthquakes at the head of the Southwest Rift Zone on Kīlauea Volcano, Hawaiʻi, reveal an interaction of normal and strike-slip faulting associated with movement of Kīlauea's south flank. A relocated subset of earthquakes between January 2012 and August 2014...
