Movements of female Sage Grouse Centrocercus urophasianus during incubation recess
Jonathan E. Dudko, Peter S. Coates, David J. Delehanty
2019, Ibis (161) 222-229
We combined GPS data‐loggers, VHF transmitters, and DVR video‐monitoring to measure fine‐scale movement patterns during daily incubation recesses by female Sage Grouse Centrocercus urophasianus, a species with uniparental incubation that has experienced widespread population decline and distributional contraction. Most (69.6%) Sage Grouse recess activity was highly localized within a core recess...
Behavior and survival of stocked trout in southern Appalachian Mountain streams
H.J. Flowers, Thomas J. Kwak, J.R. Fischer, W. G. Cope, J.M. Rash, D.A. Besler
2019, Transactions of the American Fisheries Society (148) 3-20
Stocking of trout to support recreational fisheries is a common practice among state and federal agencies to meet angling and harvest demands. Success of stocking efforts relies upon fish behavior and survival to maximize the availability of fish to anglers. We quantitatively described the movement behavior...
A Bayesian life-cycle model to estimate escapement at maximum sustained yield in salmon based on limited information
Jan Ohlberger, Samuel J. Brinkman, Patrick Crain, George R. Pess, Jeffrey J. Duda, Thomas W. Buehrens, Thomas P. Quinn, Ray Hilborn
2019, Canadian Journal of Fisheries and Aquatic Sciences (76) 299-307
Life-cycle models combine several strengths for estimating population parameters and biological reference points of harvested species and are particularly useful for those exhibiting distinct habitat shifts and experiencing contrasting environments. Unfortunately, time series data are often limited to counts of adult abundance and harvest. By incorporating data from other populations...
Earthquake catalogs for the USGS National Seismic Hazard Maps
Charles Mueller
2019, Seismological Research Letters (90) 251-261
We describe a methodology that has been developed at the U.S. Geological Survey for making earthquake catalogs for seismic hazard analysis and review the status of the catalogs for the conterminous United States. A new catalog is assembled from several pre‐existing catalogs. Uniform moment...
Movement ecology of reintroduced migratory Whooping Cranes
Claire S. Teitelbaum, Sarah J. Converse, William F. Fagan, Thomas Mueller
2019, Book chapter, Whooping Cranes: Biology and conservation
No abstract available....
Reproduction and reproductive strategies relevant to management of Whooping Cranes ex situ
Nucharin Songsasen, Sarah J. Converse, Megan Brown
2019, Book chapter, Whooping Cranes: Biology and conservation
Due to the small population size (∼400 birds) and continuing threats to wild Whooping Cranes (Grus americana), an ex situ (captive) population is maintained to contribute to the recovery of the species. The goals of the captive breeding program are to provide opportunity for research and birds for reintroduction. However, reproduction among captive...
Population dynamics of reintroduced Whooping Cranes
Sarah J. Converse, Sabrina Servanty, Clinton T. Moore, Michael C. Runge
2019, Book chapter, Whooping Cranes: Biology and conservation
Because of the small size and restricted range of the Aransas-Wood Buffalo Population, reintroduction is a prominent element of the recovery effort to ensure persistence of Whooping Cranes (Grus americana). A fundamental objective of all Whooping Crane reintroduction efforts is the establishment of a self-sustaining population. Therefore, success of reintroduction efforts will...
Whooping Cranes past and present
John B. French Jr., Sarah J. Converse, Jane E. Austin
2019, Book chapter, Whooping Cranes: Biology and conservation
The Whooping Crane (Grus americana), endemic to North America, is the rarest of all crane species. It is believed that in the early 1800s, the Whooping Crane was widespread in North America, though it was never very abundant. Whooping Crane numbers decreased precipitously as westward migration of Euro-American settlers converted prairie to cropland and...
Reproductive failure in the Eastern Migratory Population: The interaction of research and management
Sarah J. Converse, Bradley N. Strobel, Jeb A. Barzen
2019, Book chapter, Whooping Cranes: Biology and conservation
The reintroduction of the Eastern Migratory Population of Whooping Cranes (Grus americana) has shown the most promise of any effort to date toward the establishment of a self-sustaining population. However, reproduction – including both nest success and chick survival – has been a major challenge. Here, we review the research and management...
Mortality in Aransas-Wood Buffalo Whooping Cranes: Timing, location, and causes
Aaron T. Pearse, David A. Brandt, Barry K. Hartup, Mark T. Bidwell
2019, Book chapter, Whooping Cranes: Biology and conservation
For long-lived species with low fecundity rates, population growth rate can be sensitive to changes in annual survival. Understanding where, when, and why animals die provides useful information for prioritizing conservation practices designed to increase survival. As part of a satellite tracking study, we identified 19 confirmed and suspected deaths...
Revisiting the historic distribution and habitats of the Whooping Crane
Jane E. Austin, Matthew A. Hayes, Jeb A. Barzen
2019, Book chapter, Whooping cranes: Biology and conservation
The endangered Whooping Crane (Grus americana) historically had a wide distribution that covered diverse ecoregions across North America while retaining consistent habitat preferences within each ecoregion. We reevaluate the historic information compiled by Robert Porter Allen in 1952 and added 74 other records. Based on the ecological features of historic locations relative...
Statistical detection of flow regime changes in horizontal hydraulically fractured Bakken oil wells
Emil D. Attanasi, T.C. Coburn, B. Ran-McDonald
2019, Natural Resources Research (28) 259-272
The application of horizontal and hydraulically fractured wells for producing oil from low permeability formations has changed the face of the North American oil industry. One feature of the production profile of many such wells is a transition from transient linear oil flow to boundary-dominated flow. The identification of the...
Changing station coverage impacts temperature trends in the Upper Colorado River Basin
Stephanie A. McAfee, Gregory J. McCabe, Stephen Gray, Gregory T. Pederson
2019, International Journal of Climatology (39) 1517-1538
Over the Upper Colorado River Basin (UCRB), temperatures in widely used gridded data products do not warm as much as mean temperatures from a stable set of U.S. Historical Climatology Network (USHCN) stations, located at generally lower elevations, in most months of the year. This is contrary to expectations of...
Globally detected volcanic lightning and umbrella dynamics during the 2014 eruption of Kelud, Indonesia
Kirstin A Hargie, Alexa R. Van Eaton, Larry G. Mastin, Robert H. Holzworth, John W. Ewert, Michael J. Pavolonis
2019, Journal of Volcanology and Geothermal Research (382) 81-91
Volcanic lightning shows considerable promise as a monitoring and research tool to characterize explosive eruptions. Its key strengths are rapid and remote detection, because the radio signals produced by lightning can propagate thousands of km at the speed of light. Despite...
Conservation challenges emerging from free-roaming horse management: a vexing social-ecological mismatch
Erik A. Beever, Lynn Huntsinger, Steven L. Petersen
2019, Conservation Letters (226) 321-328
Horses have been associated with human societies for millennia, and for many have come to symbolize wildness, power, resilience, and freedom. Although equids were extirpated from North America 10 000-12 000 years ago, descendants of domestic horses now roam freely in the USA and 17 other countries across six continents....
Tropical cyclone projections: Changing climate threats for Pacific Island defense installations
Matthew J. Widlansky, Hariharasubramanian Annamalai, Stephen B. Gingerich, Curt D. Storlazzi, John J. Marra, Kevin I. Hodges, Barry Choy, Akio Kitoh
2019, Weather, Climate, and Society (11)
Potential changing climate threats in the tropical and subtropical North Pacific Ocean were assessed, using coupled ocean-atmosphere and atmosphere-only general circulation models, to explore their response to projected increasing greenhouse gas emissions. Tropical cyclone occurrence, described by their frequency and intensity, near islands housing major U.S. defense installations was the...
Near-surface environmentally forced changes in the Ross Ice Shelf observed with ambient seismic noise
J. Chaput, R. C. Aster, D. McGrath, M.G.W. Baker, Robert E. Anthony, P. Gerstoft, P. Bromirski, A. Nyblade, R.A. Stephen, D. Wiens
2019, Geophysical Research Letters (45) 11,187-11,196
Continuous seismic observations across the Ross Ice Shelf reveal ubiquitous ambient res- onances at frequencies >5 Hz. These firn-trapped surface wave signals arise through wind and snow bedform interactions coupled with very low velocity structures. Progressive and long-term spectral changes are associated with surface snow redistribution by wind and with a January 2016...
India National Gas Hydrate Program Expedition 02 summary of scientific results: Evaluation of natural gas hydrate-bearing pressure cores
R. Boswell, J. Yoneda, William F. Waite
2019, Journal of Marine and Petroleum Geology (108) 143-153
India’s National Gas Hydrate Program (NGHP) Expedition-02 was conducted in 2015 with the goal of investigating numerous locations that had been determined to be prospective for gas hydrate at high saturation in sand-rich reservoirs. Initial logging while drilling data revealed extensive sand-rich gas hydrate occurrences at multiple drill sites...
Assessing effects of nonnative crayfish on mosquito survival
Gary M. Bucciarelli, Daniel Suh, Avery Davis Lamb, Dave Roberts, Debra Sharpton, H. Bradley Shaffer, Robert N. Fisher, Lee B. Kats
2019, Conservation Biology (33) 122-131
Introductions of nonnative predators often reduce biodiversity and affect natural predator–prey relationships and may increase the abundance of potential disease vectors (e.g., mosquitoes) indirectly through competition or predation cascades. The Santa Monica Mountains (California, U.S.A.), situated in a global biodiversity hotspot, is an area of conservation concern due to climate...
Prevalence of three-chick nests in Adelie Penguins Pygoscelis adeliae at Cape Crozier, Ross Island
Virginia Morandini, Amelie Lescröel, Dennis Jongsomjit, Suzanne Winquist, Annie Schmidt, Grant Ballard, Peter Kappes, Katie Dugger
2019, Marine Ornithology: Journal of Seabird Research and Conservation (47) 77-80
In 2017/18, we recorded multiple instances of Adelie Penguin Pygoscelis adeliae nests containing three chicks at Cape Crozier, Ross Island, Antarctica. In one sub-colony, 0.67 % of nests had three chicks, or two chicks and one egg. We found that some Adelie Penguin pairs were willing to brood three chicks, as well as...
Potential responses of the Lower Missouri River Shovelnose Sturgeon (Scaphirhynchus platorynchus) population to a commercial fishing ban
Nicholas S. Green, Mark L. Wildhaber, Janice L. Albers
2019, Journal of Applied Ichthyology (35) 370-377
We developed an age‐structured population matrix model to perform population viability analysis for Lower Missouri River (LMR) shovelnose sturgeon (Scaphirhynchus platorynchus). We investigated potential effects of the commercial fishing moratorium put in place to help protect the similar‐appearing pallid sturgeon (S. albus). The model applies different components of total variance...
Water-quality trends in U.S. rivers, 2002 to 2012: Relations to levels of concern
Megan E. Shoda, Lori A. Sprague, Jennifer C. Murphy, Melissa L. Riskin
2019, Science of the Total Environment (650) 2314-2324
Effective management and protection of water resources relies upon understanding how water-quality conditions are changing over time. Water-quality trends for ammonia, chloride, nitrate, sulfate, total dissolved solids (TDS), total nitrogen (TN) and total phosphorus (TP) were assessed at 762 sites located in the conterminous United States between 2002 and 2012. Annual mean concentrations...
Testing the potential role of brine reflux in the formation of sedimentary exhalative (Sedex) ore deposits
Andrew H. Manning, Poul Emsbo
2019, Ore Geology Reviews (102) 862-874
Sedimentary exhalative (sedex) ore deposits are the world’s largest Zn-Pb deposits. While the geologic processes that formed these deposits are generally well understood, the fundamental hydrologic processes that drove these massive hydrothermal systems remain an area of debate. We use numerical modeling to test an emerging hypothesis, supported by recent...
Evidence for shelf acidification during the onset of the Paleocene-Eocene Thermal Maximum
Timothy J. Bralower, Lee R. Kump, Marci M. Robinson, Jean Self-Trail, Shelby L. Lyons, Tali Babila, Edward Ballaron, Katherine H. Freeman, Elizabeth A. Hajek, William Rush, James C. Zachos
2019, Paleoceanography and Paleoclimatology (33) 1408-1426
A transect of paleoshelf cores from Maryland and New Jersey contains a ~0.19 m to 1.61 m thick interval with reduced percentages of carbonate during the onset of the Paleocene-Eocene Thermal Maximum (PETM). Outer paleoshelf cores are barren of nannofossils and correspond to two minor disconformities. Middle paleoshelf...
Formation and occurrence of ferromanganese crusts: Earth’s storehouse for critical metals
Paul A. Lusty, James R. Hein, Pierre Josso
Samantha Whisman, editor(s)
2019, Elements (14) 313-318
Marine ferromanganese oxide crusts (Fe–Mn crusts) are potentially important metal resources formed on the seafloor by precipitation of dissolved and colloidal components from ambient seawater onto rocky surfaces. The unique properties and slow growth rates of the crusts promote adsorption of numerous elements from seawater: some, such as Te and...
