Exploring similarities among many species distributions
Scott Simmerman, Jingyuan Wang, James Osborne, Kimberly Shook, Jia Hu, William Godsoe, Theodore R. Simons
2012, Conference Paper, Proceedings of the 1st Conference of the Extreme Science and Engineering Discovery Environment: Bridging from the eXtreme to the campus and beyond
Collecting species presence data and then building models to predict species distribution has been long practiced in the field of ecology for the purpose of improving our understanding of species relationships with each other and with the environment. Due to limitations of computing power as well as limited means of...
The hidden cost of wildfires: Economic valuation of health effects of wildfire smoke exposure in Southern California
L.A. Richardson, P.A. Champ, J.B. Loomis
2012, Journal of Forest Economics (18) 14-35
There is a growing concern that human health impacts from exposure to wildfire smoke are ignored in estimates of monetized damages from wildfires. Current research highlights the need for better data collection and analysis of these impacts. Using unique primary data, this paper quantifies the economic cost of health effects...
Effects of roads on survival of San Clemente Island foxes
N.P. Snow, William F. Andelt, Thomas R. Stanley, J.R. Resnik, L. Munson
2012, Journal of Wildlife Management (76) 243-252
Roads generate a variety of influences on wildlife populations; however, little is known about the effects of roads on endemic wildlife on islands. Specifically, road‐kills of island foxes (Urocyon littoralis) on San Clemente Island (SCI), Channel Islands, California, USA are a concern for resource managers. To determine the effects of...
Quantifying urban land cover change between 2001 and 2006 in the Gulf of Mexico region
George Z. Xian, Collin G. Homer, Brett Bunde, Patrick Danielson, Jon Dewitz, Joyce Fry, Ruiliang Pu
2012, Geocarto International (27) 479-497
We estimated urbanization rates (2001–2006) in the Gulf of Mexico region using the National Land Cover Database (NLCD) 2001 and 2006 impervious surface products. An improved method was used to update the NLCD impervious surface product in 2006 and associated land cover transition between 2001 and 2006. Our estimation reveals...
Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study
J. Jiang, Donald L. DeAngelis, T. J. Smith III, S.Y. Teh, H. L. Koh
2012, Landscape Ecology (27) 109-119
Coastal vegetation of South Florida typically comprises salinity-tolerant mangroves bordering salinity-intolerant hardwood hammocks and fresh water marshes. Two primary ecological factors appear to influence the maintenance of mangrove/hammock ecotones against changes that might occur due to disturbances. One of these is a gradient in one or more environmental factors. The...
Upper Klamath Basin Landsat Image for August 19, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Migrating birds’ use of stopover habitat in the southwestern United States
Janet M. Ruth, R.H. Diehl, R.K. Felix Jr.
2012, The Condor (114) 698-710
In the arid Southwest, migratory birds are known to use riparian stopover habitats; we know less about how migrants use other habitat types during migratory stopover. Using radar data and satellite land-cover data, we determined the habitats with which birds are associated during migration stopover. Bird densities differed significantly by...
Genetic diversity and species diversity of stream fishes covary across a land-use gradient
M.J. Blum, M.J. Bagley, D.M. Walters, S.A. Jackson, F.B. Daniel, D.J. Chaloud, Brian S. Cade
2012, Oecologia (168) 83-95
Genetic diversity and species diversity are expected to covary according to area and isolation, but may not always covary with environmental heterogeneity. In this study, we examined how patterns of genetic and species diversity in stream fishes correspond to local and regional environmental conditions. To do so, we compared population...
Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2006
Water Resources Division, U.S. Geological Survey
2012, Report
Upper Klamath Basin Landsat Image for September 20, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Microbial reduction of structural iron in interstratified illite-smectite minerals by a sulfate-reducing bacterium
D. Liu, H. Dong, M.E. Bishop, Jiahua Zhang, Hongfang Wang, S. Xie, Shaoming Wang, L. Huang, D. D. Eberl
2012, Geobiology (10) 150-162
Clay minerals are ubiquitous in soils, sediments, and sedimentary rocks and could coexist with sulfate‐reducing bacteria (SRB) in anoxic environments, however, the interactions of clay minerals and SRB are not well understood. The objective of this study was to understand the reduction rate and capacity of structural Fe(III) in dioctahedral...
Methylation of Hg downstream from the Bonanza Hg mine, Oregon
John E. Gray, Mark E. Hines, David P. Krabbenhoft, Bryn Thoms
2012, Applied Geochemistry (27) 106-114
Speciation of Hg and conversion to methyl-Hg were evaluated in stream sediment, stream water, and aquatic snails collected downstream from the Bonanza Hg mine, Oregon. Total production from the Bonanza mine was >1360t of Hg, during mining from the late 1800s to 1960, ranking it as an intermediate sized Hg...
Power analysis and trend detection for water quality monitoring data. An application for the Greater Yellowstone Inventory and Monitoring Network
Kathryn M. Irvine, Kezia Manlove, Cynthia Hollimon
2012, Natural Resource Report NPS/GRYN/NRR-2012/556
An important consideration for long term monitoring programs is determining the required sampling effort to detect trends in specific ecological indicators of interest. To enhance the Greater Yellowstone Inventory and Monitoring Network’s water resources protocol(s) (O’Ney 2006 and O’Ney et al. 2009 [under review]), we developed a set of tools...
Thermal infrared remote sensing of water temperature in riverine landscapes
Rebecca N. Handcock, Christian E. Torgersen, Keith A. Cherkauer, Alan R. Gillespie, Tockner Klement, Russell N. Faux, Jing Tan
Patrice E. Carbonneau, Hervé Piégay, editor(s)
2012, Book chapter, Fluvial remote sensing for science and management
Water temperature in riverine landscapes is an important regional indicator of water quality that is influenced by both ground- and surface-water inputs, and indirectly by land use in the surrounding watershed (Brown and Krygier, 1970; Beschta et al., 1987; Chen et al., 1998; Poole and Berman, 2001).Coldwater fishes such as...
Seed dispersal and seed fate in Joshua tree (Yucca brevifolia)
B.A. Waitman, S.B. Vander Wall, Todd Esque
2012, Journal of Arid Environments (81) 1-8
Joshua tree (Yucca brevifolia) is a charismatic symbol of the Mojave Desert. Despite its familiarity, we know little about the reproduction of this species, including mechanisms of seed dispersal. Here we examine mechanisms of seed dispersal and resulting seed fate. We experimentally tracked fruit and seed removal and followed the...
Wetlands of the Central Valley of California and Klamath Basin
Joseph P. Fleskes
Darold P. Batzer, Andrew H. Baldwin, editor(s)
2012, Book chapter, Wetland habitats of North America: ecology and conservation concerns
No abstract available. ...
Nest defense- Grassland bird responses to snakes
Kevin S. Ellison, Christine Ribic
2012, Studies in Avian Biology (43) 149-159
Predation is the primary source of nest mortality for most passerines; thus, behaviors to reduce the impacts of predation are frequently quantified to study learning, adaptation, and coevolution among predator and prey species. Video surveillance of nests has made it possible to examine real-time parental nest defense. During 1999-2009, we...
The paleohydrology of unsaturated and saturated zones at Yucca Mountain, Nevada, and vicinity
James B. Paces, Joseph F. Whelan
John S. Stuckless, editor(s)
2012, Book chapter, Hydrology and geochemistry of Yucca Mountain and vicinity, Southern Nevada and California
Surface, unsaturated-zone, and saturated-zone hydrologic conditions at Yucca Mountain responded to past climate variations and are at least partly preserved by sediment, fossil, and mineral records. Characterizing past hydrologic conditions in surface and subsurface environments helps to constrain hydrologic responses expected under future climate conditions and improve predictions of repository...
Gulf Coast Ecosystem Restoration Task Force---Gulf of Mexico Ecosystem Science Assessment and Needs
Shelby Walker, Alyssa M. Dausman, Dawn L. Lavoie, editor(s)
2012, Report
The Gulf Coast Ecosystem Restoration Task Force (GCERTF) was established by Executive Order 13554 as a result of recommendations from “America’s Gulf Coast: A Long-term Recovery Plan after the Deepwater Horizon Oil Spill” by Secretary of the Navy Ray Mabus (Mabus Report). The GCERTF consists of members from 11 Federal...
Deltamethrin flea-control preserves genetic variability of black-tailed prairie dogs during a plague outbreak
P.H. Jones, Dean E. Biggins, David Eads, S.L. Eads, H.B. Britten
2012, Conservation Genetics (13) 183-195
Genetic variability and structure of nine black-tailed prairie dog (BTPD, Cynomys ludovicianus) colonies were estimated with 15 unlinked microsatellite markers. A plague epizootic occurred between the first and second years of sampling and our study colonies were nearly extirpated with the exception of three colonies in which prairie dog burrows were...
Functional ecology of saltglands in shorebirds: Flexible responses to variable environmental conditions
J.S. Gutierrez, M.W. Dietz, J.A. Masero, Robert E. Gill Jr., Anne Dekinga, Phil F. Battley, J. M. Sanchez-Guzman, Theunis Piersma
2012, Functional Ecology (26) 236-244
1. Birds of marine environments have specialized glands to excrete salt, the saltglands. Located on the skull between the eyes, the size of these organs is expected to reflect their demand, which will vary with water turnover rates as a function of environmental (heat load, salinity of prey and drinking...
Using rocks to reveal the inner workings of magma chambers below volcanoes in Alaska’s National Parks
Michelle L. Coombs, Charles R. Bacon
2012, Alaska Park Science (11) 26-33
Alaska is one of the most vigorously volcanic regions on the planet, and Alaska’s national parks are home to many of the state’s most active volcanoes. These pose both local and more distant hazards in the form of lava and pyroclastic flows, lahars (mudflows), ash clouds, and ash fall. Alaska’s...
Managing inherent complexity for sustainable walleye fisheries in Lake Erie
Edward F. Roseman, Richard Drouin, Marc Gaden, Roger Knight, Jeff Tyson, Yingming Zhao
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2012, Book chapter, Great Lakes fisheries policy and management: A binational perspective
In Lake Erie, Walleye (Sander vitreus vitreus) is king. The naturally occurring species is the foundation of commercial fishing operations on the Canadian side of the lake and is a much-prized sport fish on the American side. Management of Lake Erie walleye fisheries is complex and takes place in...
Bird productivity and nest predation in agricultural grasslands
Christine Ribic, Michael J. Guzy, Travis J. Anderson, David W. Sample, Jamie L. Nack
2012, Studies in Avian Biology (43) 119-134
Effective conservation strategies for grassland birds in agricultural landscapes require understanding how nesting success varies among different grassland habitats. A key component to this is identifying nest predators and how these predators vary by habitat. We quantified nesting activity of obligate grassland birds in three habitats [remnant prairie, cool-season grass...
Surface heat flow and CO2 emissions within the Ohaaki hydrothermal field, Taupo Volcanic Zone, New Zealand
C. Rissmann, B. Christenson, Cynthia A. Werner, M. Leybourne, J. Cole, D. Gravley
2012, Applied Geochemistry (27) 223-239
Carbon dioxide emissions and heat flow have been determined from the Ohaaki hydrothermal field, Taupo Volcanic Zone (TVZ), New Zealand following 20 a of production (116 MWe). Soil CO2 degassing was quantified with 2663 CO2 flux measurements using the accumulation chamber method, and 2563 soil temperatures were measured and converted to equivalent heat flow...
