Users as essential contributors to spatial cyberinfrastructures
B.S. Poore
2011, Conference Paper, Proceedings of the National Academy of Sciences of the United States of America
Current accounts of spatial cyberinfrastructure development tend to overemphasize technologies to the neglect of critical social and cultural issues on which adoption depends. Spatial cyberinfrastructures will have a higher chance of success if users of many types, including nonprofessionals, are made central to the development process. Recent studies in the...
Evaluating the effect of predators on white-tailed deer: Movement and diet of coyotes
M.M. Turner, A.P. Rockhill, C.S. Deperno, J.A. Jenks, R. W. Klaver, A.R. Jarding, T.W. Grovenburg, K. H. Pollock
2011, Journal of Wildlife Management (75) 905-912
Coyotes (Canis latrans) may affect adult and neonate white-tailed deer (Odocoileus virginianus) survival and have been implicated as a contributor to the decline of deer populations. Additionally, coyote diet composition is influenced by prey availability, season, and region. Because coyote movement and diet vary by region, local data are important...
Late Quaternary environmental change inferred from phytoliths and other soil-related proxies: Case studies from the central and southern Great Plains, USA
C.E. Cordova, W.C. Johnson, R.D. Mandel, M.W. Palmer
2011, Catena (85) 87-108
This study investigates stable carbon isotopes (δ13C), opal phytolith assemblages, burnt phytoliths, microscopic charcoal and Sporormiella spores from modern soils and paleosols in Kansas and Oklahoma. Grass and dicot phytoliths in combination with δ13C are used as proxies for reconstructing the structure of grasslands and woodlands. Burnt grass phytoliths and microscopic charcoal...
Sexing young snowy owls
Mathew T. Seidensticker, Denver W. Holt, Jennifer Detienne, Sandra L. Talbot, Kathy Gray
2011, Journal of Raptor Research (45) 281-289
We predicted sex of 140 Snowy Owl (Bubo scandiacus) nestlings out of 34 nests at our Barrow, Alaska, study area to develop a technique for sexing these owls in the field. We primarily sexed young, flightless owls (3844 d old) by quantifying plumage markings on the remiges and tail, predicting...
Predicting community responses to perturbations in the face of imperfect knowledge and network complexity
M. Novak, J.T. Wootton, D.F. Doak, M. Emmerson, J. A. Estes, M. T. Tinker
2011, Ecology (92) 836-846
How best to predict the effects of perturbations to ecological communities has been a long-standing goal for both applied and basic ecology. This quest has recently been revived by new empirical data, new analysis methods, and increased computing speed, with the promise that ecologically important insights may be obtainable from...
Spatiotemporal evolution of dike opening and décollement slip at Kīlauea Volcano, Hawai'i
E. K. Montgomery-Brown, D. K. Sinnett, K.M. Larson, Michael P. Poland, P. Segall, Asta Mikijus
2011, Journal of Geophysical Research B: Solid Earth (116)
Rapid changes in ground tilt and GPS positions on Kīlauea Volcano, Hawai'i, are interpreted as resulting from a shallow, two-segment dike intrusion into the east rift zone that began at 1217 UTC (0217 HST) on 17 June 2007 and lasted almost 3 days. As a result of the intrusion, a...
Transient changes in shallow groundwater chemistry during the MSU ZERT CO2 injection experiment
J. A. Apps, Lingyun Zheng, N. Spycher, J.T. Birkholzer, Yousif K. Kharaka, James J. Thordsen, Evangelos Kakouros, R. Trautz
2011, Conference Paper, Energy Procedia
Food-grade CO2 was injected into a shallow aquifer through a perforated pipe placed horizontally 1–2 m below the water table at the Montana State University Zero Emission Research and Technology (MSU-ZERT) field site at Bozeman, Montana. The possible impact of elevated CO2 levels on...
High-frequency filtering of strong-motion records
J. Douglas, D.M. Boore
2011, Bulletin of Earthquake Engineering (9) 395-409
The influence of noise in strong-motion records is most problematic at low and high frequencies where the signal to noise ratio is commonly low compared to that in the mid-spectrum. The impact of low-frequency noise (<1 Hz) on strong-motion intensity parameters such as ground velocities, displacements and response spectral ordinates...
Compositional diversity and geologic insights of the Aristarchus crater from Moon Mineralogy Mapper data
J.F. Mustard, C.M. Pieters, P.J. Isaacson, J.W. Head, S. Besse, R. N. Clark, R.L. Klima, N.E. Petro, M.I. Staid, J.M. Sunshine, C.J. Runyon, S. Tompkins
2011, Journal of Geophysical Research E: Planets (116)
The Moon Mineralogy Mapper (M3) acquired high spatial and spectral resolution data of the Aristarchus Plateau with 140 m/pixel in 85 spectral bands from 0.43 to 3.0 m. The data were collected as radiance and converted to reflectance using the observational constraints and a solar spectrum scaled to the Moon-Sun...
Study design and sampling intensity for demographic analyses of bear populations
R.B. Harris, C.C. Schwartz, R.D. Mace, M.A. Haroldson
2011, Ursus (22) 24-36
The rate of population change through time (??) is a fundamental element of a wildlife population's conservation status, yet estimating it with acceptable precision for bears is difficult. For studies that follow known (usually marked) bears, ?? can be estimated during some defined time by applying either life-table or matrix...
The relative importance of physicochemical factors to stream biological condition in urbanizing basins: Evidence from multimodel inference
Daren M. Carlisle, Wade L. Bryant Jr.
2011, Freshwater Science (31) 154-166
Many physicochemical factors potentially impair stream ecosystems in urbanizing basins, but few studies have evaluated their relative importance simultaneously, especially in different environmental settings. We used data collected in 25 to 30 streams along a gradient of urbanization in each of 6 metropolitan areas (MAs) to evaluate the relative importance...
Changes in monoterpene mixing ratios during summer storms in rural New Hampshire (USA)
Karl B. Haase, C. Jordan, E. Mentis, L. Cottrell, H.R. Mayne, R. Talbot, B.C. Sive
2011, Atmospheric Chemistry and Physics (11) 11465-11476
Monoterpenes are an important class of biogenic hydrocarbons that influence ambient air quality and are a principle source of secondary organic aerosol (SOA). Emitted from vegetation, monoterpenes are a product of photosynthesis and act as a response to a variety of environmental factors. Most parameterizations of monoterpene emissions are based...
Inland surface water: Chapter 18
Jill Baron, C. T. Driscoll, J.L. Stoddard
2011, General Technical Report NRS-80
Freshwater aquatic ecosystems include rivers and streams, large and small lakes, reservoirs, and ephemeral ponds. Wetlands are defi ned and discussed in Chapter 17 of this report. It is estimated that there are 123,400 lakes with a surface area greater than 4 ha in the United States. Most lakes, however,...
Detecting post-fire burn severity and vegetation recovery using multitemporal remote sensing spectral indices and field-collected composite burn index data in a ponderosa pine forest
Xuexia Chen, James E. Vogelmann, Matt Rollins, Donald Ohlen, Carl H. Key, Limin Yang, Chengquan Huang, Hua Shi
2011, International Journal of Remote Sensing (32) 7905-7927
It is challenging to detect burn severity and vegetation recovery because of the relatively long time period required to capture the ecosystem characteristics. Multitemporal remote sensing data can providemultitemporal observations before, during and after a wildfire, and can improve the change detection accuracy. The goal of this study is to...
Integrating occupancy modeling and interview data for corridor identification: A case study for jaguars in Nicaragua
K.A. Zeller, S. Nijhawan, R. Salom-Perez, S.H. Potosme, James E. Hines
2011, Biological Conservation (144) 892-901
Corridors are critical elements in the long-term conservation of wide-ranging species like the jaguar (Panthera onca). Jaguar corridors across the range of the species were initially identified using a GIS-based least-cost corridor model. However, due to inherent errors in remotely sensed data and model uncertainties, these corridors warrant field verification...
Validating growth and development of a seabird as an indicator of food availability: Captive-reared Caspian Tern chicks fed ad libitum and restricted diets
Donald E. Lyons, Daniel D. Roby
2011, Journal of Field Ornithology (82) 88-100
For seabirds raising young under conditions of limited food availability, reducing chick provisioning and chick growth rates are the primary means available to avoid abandonment of a breeding effort. For most seabirds, however, baseline data characterizing chick growth and development under known feeding conditions are unavailable, so it is difficult...
Spawning habitat selection of hickory shad
Julianne E. Harris, Joseph E. Hightower
2011, North American Journal of Fisheries Management (31) 495-505
We examined the spawning habitat selectivity of hickory shad Alosa mediocris, an anadromous species on the Atlantic coast of North America. Using plankton tows and artificial substrates (spawning pads), we collected hickory shad eggs in the Roanoke River, North Carolina, to identify spawning timing, temperature, and microhabitat use. Hickory shad eggs...
Multiplets: Their behavior and utility at dacitic and andesitic volcanic centers
W. Thelen, S. Malone, M. West
2011, Journal of Geophysical Research B: Solid Earth (116)
Multiplets, or groups of earthquakes with similar waveforms, are commonly observed at volcanoes, particularly those exhibiting unrest. Using triggered seismic data from the 1980-1986 Mount St. Helens (MSH) eruption, we have constructed a catalog of multiplet occurrence. Our analysis reveals that the occurrence of multiplets is related, at least in...
Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models
Joseph D. White, Kevin J. Gutzwiller, Wylie C. Barrow, Lori Johnson-Randall, Lisa Zygo, Pamela Swint
2011, Conservation Biology (25) 536-546
Avian conservation efforts must account for changes in vegetation composition and structure associated with climate change. We modeled vegetation change and the probability of occurrence of birds to project changes in winter bird distributions associated with climate change and fire management in the northern Chihuahuan Desert (southwestern U.S.A.). We simulated...
Forecasting carbon budget under climate change and CO2 fertilization for subtropical region in China using integrated biosphere simulator (IBIS) model
Q. Zhu, H. Jiang, J. Liu, C. Peng, X. Fang, S. Yu, G. Zhou, X. Wei, W. Ju
2011, Polish Journal of Ecology (59) 3-24
The regional carbon budget of the climatic transition zone may be very sensitive to climate change and increasing atmospheric CO2 concentrations. This study simulated the carbon cycles under these changes using process-based ecosystem models. The Integrated Biosphere Simulator (IBIS), a Dynamic Global Vegetation Model (DGVM), was used to evaluate the...
Evidence for foraging -site fidelity and individual foraging behavior of pelagic cormorants rearing chicks in the Gulf of Alaska
J. Kotzerka, Scott A. Hatch, S. Garthe
2011, Condor (113) 80-88
The Pelagic Cormorant (Phalacrocorax pelagicus) is the most widespread cormorant in the North Pacific, but little is known about its foraging and diving behavior. However, knowledge of seabirds' foraging behavior is important to understanding their function in the marine environment. In 2006, using GPS dataloggers, we studied the foraging behavior...
Barrier island response to late Holocene climate events, North Carolina, USA
D. J. Mallinson, C. W. Smith, S. Mahan, S.J. Culver, K. McDowell
2011, Quaternary Research (76) 46-57
The Outer Banks barrier islands of North Carolina, USA, contain a geologic record of inlet activity that extends from ca. 2200 cal yr BP to the present, and can be used as a proxy for storm activity. Optically stimulated luminescence (OSL) dating (26 samples) of inlet-fill and flood tide delta...
Changes in monoterpene mixing ratios during summer storms in rural New Hampshire (USA)
Karl B. Haase, C. Jordan, E. Mentis, L. Cottrell, H.R. Mayne, R. Talbot, B.C. Sive
2011, Atmospheric Chemistry and Physics Discussions (11) 20631-20665
Monoterpenes are an important class of biogenic hydrocarbons that influence ambient air quality and are a principle source of secondary organic aerosol (SOA). Emitted from vegetation, monoterpenes are a product of photosynthesis and act as a response to a variety of environmental factors. Most parameterizations of monoterpene emissions are based...
Preening behavior of adult gyrfalcons tagged with backpack transmitters
T.L. Booms, P.F. Schempf, M.R. Fuller
2011, Journal of Raptor Research (45) 264-267
Radio transmitters provide data that enhance understanding of raptor biology (Walls and Kenward 2007) and are now used to answer a multitude of research questions (Meyburg and Fuller 2007). However, transmitters affect the birds that carry them (Barron et al. 2010), and it is important to document and evaluate such...
Estimation of mussel population response to hydrologic alteration in a southeastern U.S. stream
James T. Peterson, J.M. Wisniewski, C.P. Shea, Jackson C. Rhett
2011, Environmental Management (48) 109-122
The southeastern United States has experienced severe, recurrent drought, rapid human population growth, and increasing agricultural irrigation during recent decades, resulting in greater demand for the water resources. During the same time period, freshwater mussels (Unioniformes) in the region have experienced substantial population declines. Consequently, there is growing interest in...
