Running on empty: Recharge dynamics from animal movement data
Mevin Hooten, Henry R. Scharf, Juan M. Morales
2019, Ecology Letters (22) 377-389
Vital rates such as survival and recruitment have always been important in the study of population and community ecology. At the individual level, physiological processes such as energetics are critical in understanding biomechanics and movement ecology and also scale up to influence food webs and trophic cascades. Although vital rates...
Coastal wetlands: A synthesis
Charles S. Hopkinson, Eric Wolanski, Donald R. Cahoon, Gerardo M. E. Perillo, Mark M. Brinson
Gerardo M. E. Perillo, Eric Wolanski, Donald R. Cahoon, Charles S. Hopkinson, editor(s)
2019, Book chapter, Coastal wetlands: An integrated ecosystem approach
This book and this synthesis address the pressing need for better management of coastal wetlands worldwide because these wetlands are disappearing at an alarming rate; in some countries the loss is 70%–80% in the last 50 years. Managing requires understanding. Although our understanding of the functioning of coastal wetland ecosystems has grown rapidly over the...
Evaluating restored tidal freshwater wetlands
Andrew H. Baldwin, Richard S. Hammerschlag, Donald R. Cahoon
Gerardo M. E. Perillo, Eric Wolanski, Donald R. Cahoon, Charles S. Hopkinson, editor(s)
2019, Book chapter, Coastal wetlands: An integrated ecosystem approach
As restoration of tidal freshwater wetlands has progressed in North America and Eurasia, research findings have continued to emerge on the postrestoration success of these ecosystems. The most common approaches used to restore tidal freshwater wetlands involve excavation or placement of dredged sediment to restore tidal hydrology compatible with vegetation establishment and managed realignment or diversion,...
Fire changes the spatial distribution and sources of soil organic carbon in a grassland-shrubland transition zone
Guan Wang, Junran Li, Sujith Ravi, Bethany P. Theiling, Joel B. Sankey
2019, Plant and Soil (435) 309-321
AimsIn many mixed grass-shrub ecosystems, increased shrub biomass tends to promote overall carbon storage, but the distribution of carbon pools may be complicated by disturbances such as wildfires. We investigated the spatial distribution of surface soil organic carbon (SOC) and its relative contribution from grasses...
Acidification impacts and goals for gauging recovery of Brook Trout populations and fish communities in streams of the Western Adirondack Mountains, New York, USA
Barry Baldigo, Scott George, Gregory Lawrence, Eric Paul
2019, Transactions of the American Fisheries Society (148) 373-392
Results from several long‐term monitoring programs in the western Adirondack Mountains, New York, indicate that acid–base chemistry of headwater streams has remained unchanged or improved only marginally since the 1990s. A paucity of quantitative fishery data, however, limits our understanding of the pre‐acidified communities as well as present‐day impacts of...
River reach restored by dam removal offers suitable spawning habitat for endangered Shortnose Sturgeon
Joseph D. Zydlewski, Catherine Johnston, Gayle Barbin Zydlewski, Sean Smith, Michael T. Kinnison
2019, Transactions of the American Fisheries Society (148) 163-175
The lowermost dam on the Penobscot River, Maine, was removed in 2013, making new habitat available for migratory fish. There is no evidence that endangered Shortnose Sturgeon Acipenser brevirostrum have spawned in the Penobscot River in recent years, but dam removal has facilitated access to potential freshwater habitat essential for...
Seasonality of nitrate sources and isotopic composition in the Upper Illinois River
Jiajia Lin, J.K. Bohlke, Sheng Huang, Miquel Gonzalez-Meler, Neil C. Sturchio
2019, Journal of Hydrology (568) 849-861
To improve understanding of spatial, seasonal, and inter-annual variations in nitrate sources and in-stream processes in the Illinois River system, nitrate concentrations and isotopic compositions were measured in 445 water samples collected over a four-year period (2004–2008) from the Upper Illinois River Basin (UIRB). Samples included surface water in the...
When ignimbrite meets water: Megascale gas-escape structures formed during welding
Peter W. Lipman
2019, Geology (47) 63-66
Diverse welding, crystallization, and structural features develop when a hot ignimbrite encounters external water, depending largely on volatile-rock ratios. Such processes are spectacularly documented by a regional ignimbrite, where ponded within an older caldera in the San Juan Mountains, Colorado. Interaction of hot pyroclastic flows with moist underlying sediments or...
Pulsed salmonfly emergence and its potential contribution to terrestrial detrital pools
Jeff Wesner, David Walters, Robert E. Zuellig
2019, Food Webs (18) 1-7
Adult aquatic insects are a globally important subsidy in terrestrial food webs. However, our understanding of their importance is largely limited to studies that measure predation of live insects by terrestrial predators. Yet the flux of adult aquatic insects to terrestrial detrital pools may also be an important subsidy pathway, particularly in cases where insect production...
Impacts of nonnative Brown Trout on Yellowstone Cutthroat Trout in a tributary stream
Robert K. Al-Chokhachy, Adam J. Sepulveda
2019, North American Journal of Fisheries Management (39) 17-28
Nonnative trout are a considerable threat to native salmonids, yet our understanding of the mechanisms behind interspecific interactions remains limited. We evaluated the impacts of nonnative Brown Trout Salmo salar on a population of Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri in Montana. We contrasted diets, growth, and survival of Yellowstone Cutthroat Trout occurring in...
Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams
Paul M. Bradley, Celeste A. Journey, Jason P. Berninger, Daniel T. Button, Jimmy M. Clark, Steven R. Corsi, Laura A. DeCicco, Kristina G. Hopkins, Bradley J. Huffman, Naomi Nakagaki, Julia E. Norman, Lisa H. Nowell, Sharon L. Qi, Peter C. Van Metre, Ian R. Waite
2019, Science of the Total Environment (655) 70-83
Complex chemical mixtures have been widely reported in larger streams but relatively little work has been done to characterize them and assess their potential effects in headwaterstreams. In 2014, the United States Geological Survey (USGS) sampled 54 Piedmont streams over ten weeks and measured 475 unique organic compounds using five analytical methods. Maximum and median...
Probability of streamflow permanence model (PROSPER): A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest
Kristin Jaeger, Roy Sando, Ryan R. McShane, Jason B. Dunham, David Hockman-Wert, Kendra E. Kaiser, Konrad Hafen, John Risley, Kyle W. Blasch
2019, Journal of Hydrology X (2)
The U.S. Geological Survey (USGS) has developed the PRObability of Streamflow PERmanence (PROSPER) model, a GIS raster-based empirical model that provides streamflow permanence probabilities (probabilistic predictions) of a stream channel having year-round flow for any unregulated and minimally-impaired stream channel in the Pacific Northwest region, U.S. The model provides annual...
The Albuquerque Seismological Lab WWSSN film chip preservation project
Alexis Casondra Bianca Alejandro, Charles R. Hutt, Adam T. Ringler, Sabrina Veronica Moore, Robert E. Anthony, David C. Wilson
2019, Seismological Research Letters (90) 401-408
From 1961 to 1996, the Albuquerque Seismological Laboratory (ASL) installed and operated the World‐Wide Standardized Seismograph Network (WWSSN). Each station within the network consisted of three Benioff short‐period sensors and three Sprengnether Press‐Ewing long‐period sensors along with recording, timing, and calibration equipment. Approximately 3.7 million single‐day record film chips were...
Water-quality trends in US rivers: Exploring effects from streamflow trends and changes in watershed management
Jennifer C. Murphy, Lori A. Sprague
2019, Science of the Total Environment (656) 645-658
We present a conceptual model that explores the relationship of streamflow trends to 15 water-quality parameters at 370 sites across the contiguous United States (US). Our analytical framework uses discrete water-quality data, daily streamflow records, and a statistical model to estimate water-quality trends between 1982 and 2012 and parse these trends into the amount of change...
Geographic attribution of soils using probabilistic modeling of GIS data for forensic search efforts
Libby A Stern, Jodi B Webb, Debra A. Willard, Christopher E. Bernhardt, David Korejwo, Maureen Bottrell, Garrett McMahon, nancy McMillan, Jared Schuetter, Patrick Wheatley, Jack Hieptas
2019, Geochemistry, Geophysics, Geosystems (20) 913-932
Examinations of soil traces associated with forensic evidence can be used to narrow potential source area(s) by characterizing features of the trace soil assemblage, some of which are limited to specific regions. Soil characteristics may be used to infer the likelihoods of the soil trace being derived...
Incorporating productivity as a measure of fitness into models of breeding area quality of Arctic peregrine falcons
David E. Andersen, Jason E. Bruggeman, Ted Swem, Patricia L. Kennedy, Debora Nigro
2019, Wildlife Biology
Using empirical location data from individuals to model habitat quality and species distributions is valuable towards understanding habitat use of wildlife, especially for conservation and management planning. Incorporating measures of reproductive success or survival into these models helps address the role of vital rates (a surrogate of fitness) in affecting...
Cyanobacteria reduce motility of quagga mussel (Driessena rostriformis bugensis) sperm
Anna G. Boegehold, Karim Alame, Nicholas S. Johnson, Donna R. Kashian
2019, Environmental Toxicology and Chemistry (38) 368-374
The temporal expansion of harmful algal blooms, primarily associated with cyanobacteria, may impact aquatic organisms at vulnerable life history stages. Broadcast spawning species release gametes into the water column for external fertilization, directly exposing sperm to potential aquatic stressors. To determine if cyanobacteria can disrupt reproduction in freshwater broadcast spawners,...
The ~1.85 Ga carbonatite in north China and its implications on the evolution of the Columbia supercontinent
Yuling Xie, Yunwei Qu, Richen Zhong, Philip L. Verplanck, Sebastien Meffre, Daoxue Xu
2019, Gondwana Research (65) 125-141
Mantle-derived carbonatites provide a unique window in the understanding of mantle characteristics and dynamics, as well as insight into the assembly and breakup of supercontinents. As a petrological indicator of extensional tectonic regimes, Archean/Proterozoic carbonatites provide important constraints on the timing of the breakup of ancient supercontinents. The majority of...
Linkages between hydrology and seasonal variations of nutrients and periphyton in a large oligotrophic subalpine lake
Ramon C. Naranjo, Richard G. Niswonger, David Smith, Donald O. Rosenberry, Sudeep Chandra
Richard G. Niswonger, David Smith, Donald O. Rosenberry, Sudeep Chandra, editor(s)
2019, Journal of Hydrology (568) 877-890
Periphyton is important to lake ecosystems, contributing to primary production, nutrient cycling, and benthic metabolism. Increases in periphyton growth in lakes can be indicative of changes in water quality, shifts in ecosystem structure, and increases in nutrient fluxes. In oligotrophic lakes, conservationists are interested in characterizing the influence of hydrological...
Long-term streamflow trends in Hawai‘i and implications for native stream fauna
H. M. Clilverd, Y.-P. Tsang, D. M. Infante, Abigail Lynch, A. M. Strauch
2019, Hydrological Processes (33) 699-719
Climate change has fundamentally altered the water cycle in tropical islands, which is a critical driver of freshwater ecosystems. To examine how changes in streamflow regime have impacted habitat quality for native migratory aquatic species, we present a 50‐year (1967–2016) analysis of hydrologic records in 23...
Petroleum systems framework of significant new oil discoveries in a giant Cretaceous (Aptian–Cenomanian) clinothem in Arctic Alaska
David W. Houseknecht
2019, American Association of Petroleum Geologists Bulletin (103) 619-652
Recent oil discoveries in an Aptian–Cenomanian clinothem in Arctic Alaska demonstrate the potential for hundred-million- to billion-barrel oil accumulations in Nanushuk Formation topsets and Torok Formation foresets–bottomsets. Oil-prone source rocks and the clinothem are draped across the Barrow arch, a structural hinge between the Colville foreland basin and Beaufort Sea...
An analysis of autocorrelation and bias in home range estimation
Michael T. Noonan, Marlee A. Tucker, Christen H. Fleming, Thomas S. Akre, Susan C Alberts, Abdullahi H. Ali, Jeanne Altmann, Pamela Castro Antunes, Jerrold L. Belant, Dean Beyer, Niels Blaum, Katrin Bohning-Gaese, Larry Cullen, Rogerio Cunha de Paula, Jasia Dekker, Jonathan Drescher-Lehman, Nina Farwig, Claudia Fichtel, Christina Fischer, Adam T. Ford, Jacob R. Goheen, Rene Janssen, Florian Jeltsch, Matthew Kauffman, Peter M. Kappeler, Flavia Koch, Scott LaPoint, A. Catherine Markham, Emilia Patricia Medici, Ronaldo G. Morato, Ran Nathan, Luiz G. R. Oliveira-Santos, Kirk A. Olson, Bruce D. Patterson, Agustin Paviolo, Emiliano Esterci Ramalho, Sascha Rosner, Dana G. Schabo, Nuria Selva, Agnieszka Sergiel, Marina Xavier da Silva, Orr Spiegel, Peter C. Thompson, Wiebke Ullmann, Filip Zieba, Tomasz Zwijacz-Kozica, William F. Fagan, Thomas Mueller, J.M. Calabrese
2019, Ecological Monographs (89)
Home range estimation is routine practice in ecological research. While advances in animal tracking technology have increased our capacity to collect data to support home range analysis, these same advances have also resulted in increasingly autocorrelated data. Consequently, the question of which home range estimator to use on modern, highly...
Functional and geographic components of risk for climate sensitive vertebrates in the Pacific Northwest, USA
Meryl Mims, Deanna H. Olson, David S. Pilliod, Jason B. Dunham
2019, Biological Conservation (228) 183-194
Rarity and life history traits inform multiple dimensions of intrinsic risk to climate and environmental change and can help systematically identify at-risk species. We quantified relative geographic rarity (area of occupancy), climate niche breadth, and life history traits for 114 freshwater fishes, amphibians, and reptiles in the U.S. Pacific Northwest....
Characterization of groundwater resources in the Chequamegon-Nicolet National Forest, Wisconsin: Medford Unit
Ken Bradbury, Stephen Mauel, Peter R. Schoephoester, Anna Fehling, Andrew T. Leaf, Paul Juckem, Randall Hunt, Aaron Pruitt
2019, Report, Technical Report
No abstract available....
Genetic swamping and species collapse: Tracking introgression between the native Candy Darter and introduced Variegate Darter
Isaac Gibson, Amy B. Welsh, Stuart A. Welsh, Daniel A. Cincotta
2019, Conservation Genetics (20) 287-298
Candy Darters (Etheostoma osburni) and Variegate Darters (E. variatum) are both native to West Virginia and Virginia. The geographic ranges of these two species were historically separated by Kanawha Falls, a natural barrier to fish dispersal located at Glen Ferris, WV. In the early 1980s, Variegate Darters or putative hybrids...
