Using occupancy models to understand the distribution of an amphibian pathogen, Batrachochytrium dendrobatidis
M. J. Adams, Nathan Chelgren, David M. Reinitz, Rebecca A. Cole, L.J. Rachowicz, Stephanie Galvan, Brome McCreary, Christopher A. Pearl, Larissa L. Bailey, Jamie B. Bettaso, Evelyn L. Bull, Matthias Leu
2010, Ecological Applications (20) 289-302
Batrachochytrium dendrobatidis is a fungal pathogen that is receiving attention around the world for its role in amphibian declines. Study of its occurrence patterns is hampered by false negatives: the failure to detect the pathogen when it is present. Occupancy models are a useful but currently underutilized tool for analyzing...
Serving ocean model data on the cloud
Michael Meisinger, Claudiu Farcas, Emilia Farcas, Charles Alexander, Matthew Arrott, Jeff de La Beaujardiere, Paul Hubbard, Roy Mendelssohn, Richard P. Signell
2010, Conference Paper, OCEANS 2009, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges
The NOAA-led Integrated Ocean Observing System (IOOS) and the NSF-funded Ocean Observatories Initiative Cyberinfrastructure Project (OOI-CI) are collaborating on a prototype data delivery system for numerical model output and other gridded data using cloud computing. The strategy is to take an existing distributed system for delivering gridded data and redeploy...
Anomalous spawning of smallmouth bass in Nebish Lake, Wisconsin: Implications for early spawning and over-winter survival
Peter James Brown, Michael A. Bozek
2010, Journal of Freshwater Ecology (25) 169-177
We observed that the smallmouth bass (Micropterus dolomieu) population in Nebish Lake, Wisconsin spawned twice-once during the traditional spring period and then again in summer, well beyond the typical spawning season for north-temperate lakes. We documented this anomalous spawning behavior and compared the characteristics of smallmouth bass nests built during...
Maintenance of Eastern hemlock forests: Factors associated with hemlock vulnerability to hemlock woolly adelgid
Mary Ann Fajvan, Petra Bohall Wood
2010, Conference Paper, Proceedings from the Conference on the Ecology and Management of High-Elevation Forests in the Central and Southern Appalachian Mountains
Eastern hemlock (Tsuga canadensis [L.]) is the most shade-tolerant and long-lived tree species in eastern North America. The hemlock woolly adelgid (Adelges tsugae) (HWA), is a nonnative invasive insect that feeds on eastern hemlock and Carolina hemlock (Tsuga caroliniana Engelm.). HWA currently is established in 17 eastern states and is...
A versatile suite of laboratory-nonspecific software for processing sediment grain-size data
Lawrence J. Poppe, Andrew H. Eliason, Katherine Y. McMullen
2010, Conference Paper
No abstract available....
No evidence of trophic mismatch for caribou in Greenland
Dennis B. Griffith, Layne G. Adams, David C. Douglas, Christine Cuyler, Robert G. White, Anne Gunn, Donald E. Russell, Raymond D. Cameron
2010, Science
No abstract available....
Comment on "analysis of pumping test data for determining unconfined-aquifer parameters: Composite analysis or not?": Paper published in Hydrogeology Journal (2009) 17:1133-1147, by Hund-Der Yeh and Yen-Chen Huang
Allen F. Moench
2010, Hydrogeology Journal (18) 1975-1977
No abstract available....
Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications
H.W. Paerl, B.L. Peierls, N. S. Hall, A. R. Joyner, R.R. Christian, Jerad D. Bales, S.R. Riggs
2010, Book chapter, Coastal lagoons: Critical habitats of environmental change
The Pamlico Sound (PS) with its sub-estuaries is the largest lagoonal ecosystem in the United States. It exhibits periodically strong salinity stratification and an average freshwater residence time of 1 year for the sound proper. This relatively long residence time promotes effective use and cycling of nutrients, allowing the system...
Geologic controls on thermal maturity patterns in Pennsylvanian coal-bearing rocks in the Appalachian basin
Leslie F. Ruppert, James C. Hower, Robert T. Ryder, Jeffrey R. Levine, Michael H. Trippi, William C. Grady
2010, International Journal of Coal Geology (81) 169-181
Thermal maturation patterns of Pennsylvanian strata in the Appalachian basin were determined by compiling and contouring published and unpublished vitrinite reflectance (VR) measurements. VR isograd values range from 0.6% in eastern Ohio and eastern Kentucky (western side of the East Kentucky coal field) to greater than 5.5% in eastern Pennsylvania (Southern Anthracite field,...
It's not just about climate change - What about soils?
Martin B. Goldhaber
2010, Elements (6) 359-359
Vladimir Vernadsky was one of the giants of geochemistry. Considered the founder of the fi eld of biogeochemistry and a true pioneer in “whole Earth” studies, he realized by 1945 that “Man under our very eyes is becoming a mighty and ever-growing geological force.” In the intervening 65 years, his...
Calibration and filtering strategies for frequency domain electromagnetic data
Burke J. Minsley, Bruce D. Smith, Richard Hammack, James I. Sams, Garret Veloski
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
echniques for processing frequency-domain electromagnetic (FDEM) data that address systematic instrument errors and random noise are presented, improving the ability to invert these data for meaningful earth models that can be quantitatively interpreted. A least-squares calibration method, originally developed for airborne electromagnetic datasets, is implemented for a ground-based survey in...
Biological community structure on patch reefs in Biscayne National Park, FL, USA
Ilsa B. Kuffner, Rikki Grober-Dunsmore, John Brock, T. Don Hickey
2010, Environmental Monitoring and Assessment (164) 513-531
Coral reef ecosystem management benefits from continual quantitative assessment of the resources being managed, plus assessment of factors that affect distribution patterns of organisms in the ecosystem. In this study, we investigate the relationships among physical, benthic, and fish variables in an effort to help explain the distribution patterns of...
How vegetation and sediment transport feedbacks drive landscape change in the Everglades and wetlands worldwide
Laurel G. Larsen, Judson W. Harvey
2010, American Naturalist (176) E66-E79
Mechanisms reported to promote landscape self‐organization cannot explain vegetation patterning oriented parallel to flow. Recent catastrophic shifts in Everglades landscape pattern and ecological function highlight the need to understand the feedbacks governing these ecosystems. We modeled feedback between vegetation, hydrology, and sediment transport on the basis of a decade of...
Management of bacterial kidney disease in Chinook Salmon hatcheries based on broodstock testing by enzyme-linked immunosorbent assay: A multiyear study
A. Douglas Munson, Diane G. Elliott, Keith Johnson
2010, North American Journal of Fisheries Management (30) 940-955
From the mid-1980s through the early 1990s, outbreaks of bacterial kidney disease (BKD) caused by Renibacterium salmoninarum continued in Chinook salmon Oncorhynchus tshawytscha in Idaho Department of Fish and Game (IDFG) hatcheries despite the use of three control methods: (1) injection of returning adult fish with erythromycin to reduce prespawning...
Treated wastewater and Nitrate transport beneath irrigated fields near Dodge city, Kansas
M. Sophocleous, M.A. Townsend, F. Vocasek, Liwang Ma, K.C. Ashok
2010, Current Research in Earth Sciences (258) 1-31
Use of secondary-treated municipal wastewater for crop irrigation south of Dodge City, Kansas, where the soils are mainly of silty clay loam texture, has raised a concern that it has resulted in high nitratenitrogen concentrations (10-50 mg/kg) in the soil and deeper vadose zone, and also in the underlying deep...
Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer
Christopher T. Green, J.K. Bohlke, Barbara A. Bekins, Steven P. Phillips
2010, Water Resources Research (46)
Gradients in contaminant concentrations and isotopic compositions commonly are used to derive reaction parameters for natural attenuation in aquifers. Differences between field‐scale (apparent) estimated reaction rates and isotopic fractionations and local‐scale (intrinsic) effects are poorly understood for complex natural systems. For a heterogeneous alluvial fan aquifer, numerical models and field...
Bringing modeling to the masses: A web based system to predict potential species distributions
Jim Graham, Greg Newman, Sunil Kumar, Catherine S. Jarnevich, Nick Young, Alycia W. Crall, Thomas J. Stohlgren, Paul Evangelista
2010, Future Internet (2) 624-634
Predicting current and potential species distributions and abundance is critical for managing invasive species, preserving threatened and endangered species, and conserving native species and habitats. Accurate predictive models are needed at local, regional, and national scales to guide field surveys, improve monitoring, and set priorities for conservation and restoration. Modeling...
Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams
Jason A. Dittman, James B. Shanley, Charles T. Driscoll, George R. Aiken, Ann T. Chalmers, Janet E. Towse, Pranesh Selvendiran
2010, Water Resources Research (46)
Mercury (Hg) contamination is widespread in remote areas of the northeastern United States. Forested uplands have accumulated a large reservoir of Hg in soil from decades of elevated anthropogenic deposition that can be released episodically to stream water during high flows. The objective of this study was to evaluate spatial...
Source water controls on the character and origin of dissolved organic matter in streams of the Yukon River basin, Alaska
Jonathan A. O’Donnell, George R. Aiken, Evan S. Kane, Jeremy B. Jones
2010, Journal of Geophysical Research G: Biogeosciences (115) 1-12
Climate warming and permafrost degradation at high latitudes will likely impact watershed hydrology, and consequently, alter the concentration and character of dissolved organic carbon (DOC) in northern rivers. We examined seasonal variation of DOC chemistry in 16 streams of the Yukon River basin, Alaska. Our primary objective was to evaluate...
Effects of subsidized predators, resource variability, and human population density on desert tortoise populations in the Mojave Desert, USA
Todd C. Esque, Kenneth E. Nussear, K. Kristina Drake, Andrew D. Walde, Kristin H. Berry, Roy C. Averill-Murray, A. Peter Woodman, William I. Boarman, Phil A. Medica, Jeremy S. Mack, Jill S. Heaton
2010, Endangered Species Research (12) 167-177
Understanding predator–prey relationships can be pivotal in the conservation of species. For 2 decades, desert tortoise Gopherus agassizii populations have declined, yet quantitative evidence regarding the causes of declines is scarce. In 2005, Ft. Irwin National Training Center, California, USA, implemented a translocation project including 2 yr of baseline monitoring...
Age-specific survival estimates of King Eiders derived from satellite telemetry
Steffen Oppel, Abby N. Powell
2010, Condor (112) 323-330
Age- and sex-specific survival and dispersal are important components in the dynamics and genetic structure of bird populations. For many avian taxa survival rates at the adult and juvenile life stages differ, but in long-lived species juveniles' survival is logistically challenging to study. We present the first estimates of hatch-year...
Does garbage in diet improve Glaucous Gull reproductive output?
Abby Powell, Emily L. Weiser
2010, Condor (112) 530-538
Anthropogenic subsidies are used by a variety of predators in areas developed for human use or residence. If subsidies promote population growth, these predators can have a negative effect on local prey species. The Glaucous Gull (Larus hyperboreus) is an abundant predator in northern Alaska that is believed to benefit...
Post-construction monitoring of a Core-Loc™ breakwater using tripod-based LiDAR
Jessica H. Podoski, Gerald W. Bawden, Sandra Bond, Thomas D. Smith, James Foster
2010, Book chapter, Coasts, marine structures and breakwaters: Adapting to change
The goal of the technology application described herein is to determine whether breakwater monitoring data collected using Tripod (or Terrestrial) Light Detection and Ranging (T-LiDAR) can give insight into processes such as how Core-Loc™ concrete armour units nest following construction, and in turn how settlement affects armour layer stability, concrete...
Climatic water deficit, tree species ranges, and climate change in Yosemite National Park
James A. Lutz, Jan W. Van Wagtendonk, Jerry F. Franklin
2010, Journal of Biogeography (37) 936-350
Aim (1) To calculate annual potential evapotranspiration (PET), actual evapotranspiration (AET) and climatic water deficit (Deficit) with high spatial resolution; (2) to describe distributions for 17 tree species over a 2300-m elevation gradient in a 3000-km2 landscape relative to AET and Deficit; (3) to examine changes in AET and Deficit...
Microbial ecology of corals, sponges, and algae in mesophotic coral environments
Julie B. Olson, Christina A. Kellogg
2010, FEMS Microbiology Ecology (73) 17-30
Mesophotic coral ecosystems that occur at depths from 30 to 200 m have historically been understudied and yet appear to support a diverse biological community. The microbiology of these systems is particularly poorly understood, especially with regard to the communities associated with corals, sponges, and algae. This lack of information...
