Comparison of point counts and territory mapping for detecting effects of forest management on songbirds
Felicity L. Newell, James Sheehan, Petra Bohall Wood, Amanda D. Rodewald, David A. Buehler, Patrick D. Keyser, Jeffrey L. Larkin, Tiffany A. Beachy, Marja H. Bakermans, Than J. Boves, Andrea Evans, Gregory A. George, Molly E. McDermott, Kelly A. Perkins, Matthew White, T. Bently Wigley
2013, Journal of Field Ornithology (84) 270-286
Point counts are commonly used to assess changes in bird abundance, including analytical approaches such as distance sampling that estimate density. Point-count methods have come under increasing scrutiny because effects of detection probability and field error are difficult to quantify. For seven forest songbirds, we compared fixed-radii counts (50 m...
Emulating natural disturbances for declining late-successional species: A case study of the consequences for Cerulean Warblers (Setophaga cerulea)
Than J. Boves, David A. Buehler, James Sheehan, Petra Bohall Wood, Amanda D. Rodewald, Jeffrey L. Larkin, Patrick D. Keyser, Felicity L. Newell, Gregory A. George, Marja H. Bakermans, Andrea Evans, Tiffany A. Beachy, Molly E. McDermott, Kelly A. Perkins, Matthew White, T. Bently Wigley
2013, PLoS ONE (8) 1-13
Forest cover in the eastern United States has increased over the past century and while some late-successional species have benefited from this process as expected, others have experienced population declines. These declines may be in part related to contemporary reductions in small-scale forest interior disturbances such as fire, windthrow, and...
Catalogue of Life: 2013 Annual Checklist
David T. Nicolson, Yuri Roskov, Thomas Kunze, Luvie Paglinawan, Thomas Orrell, Alistair Culham, Nicolas Bailly, Paul Kirk, Thierry Bourgoin, Guy Baillargeon, Franciso Hernandez, Aaike De Wever
2013, Report
The most comprehensive and authoritative global index of species currently available, it consists of a single integrated species checklist and taxonomic hierarchy. It is available (1) as a DVD and booklet; and (2) on the Web. The contact for the booklet and DVD is Thomas Orrell at the Smithsonian Institution,...
Storm surges and climate change implications for tidal marshes: Insight from the San Francisco Bay Estuary, California, USA
Karen M. Thorne, Kevin J. Buffington, Kathleen Swanson, John Y. Takekawa
2013, International Journal of Climate Change: Impacts and Responses (4) 169-190
Tidal marshes are dynamic ecosystems, which are influenced by oceanic and freshwater processes and daily changes in sea level. Projected sea-level rise and changes in storm frequency and intensity will affect tidal marshes by altering suspended sediment supply, plant communities, and the inundation duration and depth of the marsh platform....
Research strategies for addressing uncertainties
David E. Busch, Levi D. Brekke, Kristen Averyt, Angela Jardine, Leigh Welling
2013, Book chapter, Assessment of climate change in the Southwest U.S.
There is an immense volume of information pertaining to research needs for addressing climate change uncertainties and resolving key information gaps. Fortunately, multiple independent efforts to establish research priorities have yielded similar results. Input on research needs is being used to craft national scientific priorities and strategies that are being...
Biological effects-based tools for monitoring impacted surface waters in the Great Lakes: a multiagency program in support of the Great Lakes Restoration Initiative
Drew R. Ekman, Gerald T. Ankley, Vicki Blazer, Timothy W. Collette, Natàlia Garcia-Reyero, Luke R. Iwanowicz, Zachary G. Jorgensen, Kathy Lee, Pat M. Mazik, David H. Miller, Edward J. Perkins, Edwin T. Smith, Joseph E. Tietge, Daniel L. Villeneuve
2013, Environmental Practice (15) 409-426
There is increasing demand for the implementation of effects-based monitoring and surveillance (EBMS) approaches in the Great Lakes Basin to complement traditional chemical monitoring. Herein, we describe an ongoing multiagency effort to develop and implement EBMS tools, particularly with regard to monitoring potentially toxic chemicals and assessing Areas of Concern...
Effects of prescribed fire on Coluber constrictor Mormon in coastal San Mateo County, California
Michelle E. Thompson, Brian J. Halstead, Glenn D. Wylie, Melissa Amarello, Jeffrey J. Smith, Michael L. Casazza, Eric J. Routman
2013, Herpetological Conservation and Biology (8) 602-615
Although prescribed burns are used in many locations where reptiles are present, the effects of fire on reptiles are poorly understood. our objective was to determine the effects of prescribed fire on the Western yellow-bellied racer, Coluber constrictor mormon, at a study site in coastal san Mateo county, california. We sampled an...
The changing southwest
David M. Theobald, William Travis, Mark A. Drummond, Eric Gordon, Michelle Betsill
2013, Book chapter, Assessment of climate change in the southwest United States
This chapter describes important geographical and socio-economic characteristics and trends in the Southwest—such as population and economic growth and changes in land ownership, land use, and land cover—that provide the context for how climate change will likely affect the Southwest. The chapter also describes key laws and institutions relevant to...
The 2011 M = 9.0 Tohoku oki earthquake more than doubled the probability of large shocks beneath Tokyo
Shinji Toda, Ross S. Stein
2013, Geophysical Research Letters (40) 2562-2566
1] The Kanto seismic corridor surrounding Tokyo has hosted four to five M ≥ 7 earthquakes in the past 400 years. Immediately after the Tohoku earthquake, the seismicity rate in the corridor jumped 10-fold, while the rate of normal focal mechanisms dropped in half. The seismicity rate decayed for 6–12 months, after which it...
Incorporating probabilistic seasonal climate forecasts into river management using a risk-based framework
Richard S. Sojda, Erin Towler, Mike Roberts, Balaji Rajagopalan
2013, Water Resources Research (49) 4997-5008
[1] Despite the influence of hydroclimate on river ecosystems, most efforts to date have focused on using climate information to predict streamflow for water supply. However, as water demands intensify and river systems are increasingly stressed, research is needed to explicitly integrate climate into streamflow forecasts that are relevant to...
The 1960 tsunami on beach-ridge plains near Maullín, Chile: Landward descent, renewed breaches, aggraded fans, multiple predecessors
Brian F. Atwater, Marco Cisternas, E. Yulianto, A. Prendergast, K. Jankaew, A. Eipert, Warnakulasuriya Fernando, Iwan Tejakusuma, Ignacio Schiappacasse, Yuki Sawai
2013, Andean Geology (40) 393-418
The Chilean tsunami of 22 May 1960 reamed out a breach and built up a fan as it flowed across a sparsely inhabited beach-ridge plain near Maullín, midway along the length of the tsunami source. Eyewitnesses to the flooding, interviewed mainly in 1988 and 1989, identified levels that the tsunami...
Extremely arsenic-rich, pH-neutral waters from the Giant Mine, Canada
D. Kirk Nordstrom
2013, Conference Paper
Roasting arsenopyrite-bearing gold ore for more than fifty years has resulted in nearly 300,000 tons of arsenic trioxide waste at the Giant mine near Yellowknife, NWT, Canada. Most of this has been stored in underground chambers sealed with concrete bulkheads. Seepages from underground drillholes and fractures contain up to 4,000...
Use of fragile geologic structures as indicators of unexceeded ground motions and direct constraints on probabilistic seismic hazard analysis
J. W. Baker, John W. Whitney, Thomas C. Hanks, Norman A. Abramson, Mark P. Board
2013, BSSA (103) 1898-1911
We present a quantitative procedure for constraining probabilistic seismic hazard analysis results at a given site, based on the existence of fragile geologic structures at that site. We illustrate this procedure by analyzing precarious rocks and undamaged lithophysae at Yucca Mountain, Nevada. The key metric is the probability that the...
Stable stress‐drop measurements and their variability: Implications for ground‐motion prediction
Thomas C. Hanks, Annemarie S. Baltay Sundstrom, Gregory C. Beroza
2013, BSSA (103) 211-222
We estimate the arms‐stress drop, Graphic, (Hanks, 1979) using acceleration time records of 59 earthquakes from two earthquake sequences in eastern Honshu, Japan. These acceleration‐based static stress drops compare well to stress drops calculated for the same events by Baltay et al. (2011) using an empirical Green’s function (eGf) approach....
Rapid chemical evolution of tropospheric volcanic emissions from Redoubt Volcano, Alaska, based on observations of ozone and halogen-containing gases
Cynthia A. Werner, Peter J. Kelly, Christoph Kern, T.J. Roberts, A. Aluppe
2013, Journal of Volcanology and Geothermal Research (259) 317-333
We report results from an observational and modeling study of reactive chemistry in the tropospheric plume emitted by Redoubt Volcano, Alaska. Our measurements include the first observations of Br and I degassing from an Alaskan volcano, the first study of O3 evolution in a volcanic plume, as well as the first...
Magmatism, ash-flow tuffs, and calderas of the ignimbrite flareup in the western Nevada volcanic field, Great Basin, USA
Christopher D. Henry, David A. John
2013, Geosphere (9) 951-1008
The western Nevada volcanic field is the western third of a belt of calderas through Nevada and western Utah. Twenty-three calderas and their caldera-forming tuffs are reasonably well identified in the western Nevada volcanic field, and the presence of at least another 14 areally extensive, apparently voluminous ash-flow tuffs...
New microsatellite loci isolated via next-generation sequencing for two endangered pronghorn from the Sonoran Desert
Adrian Munguia-Vega, Anastasia Klimova, Melanie Culver
2013, Conservation Genetics Resources (5) 125-127
We isolated 16 novel microsatellite loci in two subspecies of endangered desert pronghorns (Antilocapra americana sonoriensis and Antilocapra americana peninsularis) using a shotgun pyrosequencing approach. All and 87.5 % of the loci were polymorphic within each subspecies, respectively. The mean number of alleles per locus was 4.86 (range 2–8) and...
Black bear density in Glacier National Park, Montana
Jeff B. Stetz, Katherine C. Kendall, Amy C. Macleod
2013, Wildlife Society Bulletin (38) 60-70
We report the first abundance and density estimates for American black bears (Ursus americanus) in Glacier National Park (NP),Montana, USA.We used data from 2 independent and concurrent noninvasive genetic sampling methods—hair traps and bear rubs—collected during 2004 to generate individual black bear encounter histories for use in closed population mark–recapture...
Land surface phenology
Jonathan M. Hanes, Li Li, Jeffrey T. Morisette
2013, Book chapter, Biophysical Applications of Satellite Remote Sensing
Certain vegetation types (e.g., deciduous shrubs, deciduous trees, grasslands) have distinct life cycles marked by the growth and senescence of leaves and periods of enhanced photosynthetic activity. Where these types exist, recurring changes in foliage alter the reflectance of electromagnetic radiation from the land surface, which can be measured using...
Thermal tolerance of meltwater stonefly Lednia tumana nymphs from an alpine stream in Waterton–Glacier International Peace Park, Montana, USA
Hilary G. Billman, J. Joseph Giersch, K.M. Kappenman, Clint C. Muhlfeld, Molly A. H. Webb
2013, Freshwater Science (32) 597-605
Global climate change threatens to affect negatively the structure, function, and diversity of aquatic ecosystems worldwide. In alpine systems, the thermal tolerances of stream invertebrates can be assessed to understand better the potential effects of rising ambient temperatures and continued loss of glaciers and snowpack on alpine stream ecosystems. We...
Localized extinction of an arboreal desert lizard caused by habitat fragmentation
Adrian Munguia-Vega, Ricardo Rodriguez-Estrella, William W. Shaw, Melanie Culver
2013, Biological Conservation (157) 11-20
We adopted a species’ perspective for predicting extinction risk in a small, endemic, and strictly scansorial lizard (Urosaurus nigricaudus), in an old (∼60 year) and highly fragmented (8% habitat remaining) agricultural landscape from the Sonoran Desert, Mexico. We genotyped 10 microsatellite loci in 280 individuals from 11 populations in fragmented and continuous...
Vascular flora of saline lakes in the southern high plains of Texas and eastern New Mexico
David J. Rosen, Warren C. Conway, David A. Haukos, Amber D. Caskey
2013, Journal of the Botanical Research Institute of Texas (7) 595-602
Saline lakes and freshwater playas form the principal surface hydrological feature of the High Plains of the Southern Great Plains. Saline lakes number less than 50 and historically functioned as discharge wetlands with relatively consistent water availability due to the presence of one or more springs. Currently, less than ten...
Re‐estimated effects of deep episodic slip on the occurrence and probability of great earthquakes in Cascadia
Nicholas M. Beeler, Evelyn A. Roeloffs, Wendy McCausland
2013, Bulletin of the Seismological Society of America (104) 128-144
Mazzotti and Adams (2004) estimated that rapid deep slip during typically two week long episodes beneath northern Washington and southern British Columbia increases the probability of a great Cascadia earthquake by 30–100 times relative to the probability during the ∼58 weeks between slip events. Because the...
4D petroleum system model of the Mississippian System in the Anadarko Basin Province, Oklahoma, Kansas, Texas, and Colorado, U.S.A.
Debra K. Higley
2013, Mountain Geologist (50) 81-98
The Upper Devonian and Lower Mississippian Woodford Shale is an important petroleum source rock for Mississippian reservoirs in the Anadarko Basin Province of Oklahoma, Kansas, Texas, and Colorado, based on results from a 4D petroleum system model of the basin. The Woodford Shale underlies Mississippian strata over most of the...
Telescoping metamorphic isograds: Evidence from 40Ar/39A dating in the Orange-Milford belt, southern Connecticut
Michael J. Kunk, Gregory J. Walsh, Martha L. Growdon, Robert P. Wintsch
2013, American Journal of Science (313) 1017-1053
New 40Ar/39Ar ages for hornblende and muscovite from the Orange-Milford belt in southern Connecticut reflect cooling from Acadian amphibolite facies metamorphism between ∼380 to 360 Ma followed by retrograde recrystallization of fabric-forming muscovite and chlorite during lower greenschist facies Alleghanian transpression at ∼280 Ma. Reported field temperature and pressure gradients...
