Experience preferences as mediators of the wildlife related recreation participation: Place attachment relationship
D.H. Anderson, D.C. Fulton
2008, Human Dimensions of Wildlife (13) 73-88
The human dimensions literature challenges the notion that settings are simply features and attributes that can be manipulated to satisfy public demand; instead, people view specific recreation settings as unique kinds of places. Land managers provide recreation experience opportunities, but most conventional management frameworks do not allow managers to address...
Cardiopulmonary responses of intratracheally instilled tire particles and constituent metal components
R.R. Gottipolu, E. R. Landa, M.C. Schladweiler, J.K. McGee, A.D. Ledbetter, J.H. Richards, G.J. Wallenborn, U.P. Kodavanti
2008, Inhalation Toxicology (20) 473-484
Tire and brake wear particles contain transition metals, and contribute to near-road PM. We hypothesized that acute cardiopulmonary injury from respirable tire particles (TP) will depend on the amount of soluble metals. Respirable fractions of two types of TP (TP1 and TP2) were analyzed for water...
General and specialized media routinely employed for primary isolation of bacterial pathogens of fishes
C. E. Starliper
2008, Journal of Wildlife Diseases (44) 121-132
There are a number of significant diseases among cultured and free-ranging freshwater fishes that have a bacterial etiology; these represent a variety of gram-negative and gram-positive genera. Confirmatory diagnosis of these diseases involves primary isolation of the causative bacterium on bacteriologic media. Frequently used "general" bacteriologic media simply provide the...
The effect of terrace geology on ground-water movement and on the interaction of ground water and surface water on a mountainside near Mirror Lake, New Hampshire, USA
T. C. Winter, D.C. Buso, P.C. Shattuck, P. T. Harte, D.A. Vroblesky, D.J. Goode
2008, Hydrological Processes (22) 21-32
The west watershed of Mirror Lake in the White Mountains of New Hampshire contains several terraces that are at different altitudes and have different geologic compositions. The lowest terrace (FSE) has 5 m of sand overlying 9 m of till. The two next successively higher terraces (FS2 and FS1) consist...
Estimation of walrus populations on sea ice with infrared imagery and aerial photography
Mark S. Udevitz, D. M. Burn, M.A. Webber
2008, Marine Mammal Science (24) 57-70
Population sizes of ice-associated pinnipeds have often been estimated with visual or photographic aerial surveys, but these methods require relatively slow speeds and low altitudes, limiting the area they can cover. Recent developments in infrared imagery and its integration with digital photography could allow substantially larger areas to be surveyed...
Compound-specific isotope analysis: Questioning the origins of a trichloroethene plume
S. M. Eberts, C. Braun, S. Jones
2008, Environmental Forensics (9) 85-95
Stable carbon isotope ratios of trichloroethene (TCE), cis-1,2- dichloroethene, and trans-1,2-dichloroethene were determined by use of gas chromatography-combustion-isotope ratio mass spectroscopy to determine whether compound-specific stable carbon isotopes could be used to help understand the origin and history of a TCE groundwater plume in Fort Worth, TX. Calculated ??13C values...
Integrated impact of tropical cyclones on sea surface chlorophyll in the North Atlantic
M. N. Hanshaw, M.S. Lozier, J.B. Palter
2008, Geophysical Research Letters (35)
Past studies have shown that surface chlorophyll-a concentrations increase in the wake of hurricanes. Given the reported increase in the intensity of North Atlantic hurricanes in recent years, increasing chlorophyll-a concentrations, perhaps an indication of increasing biological productivity, would be an expected consequence. However, in order to understand the impact...
Impairment of the reproductive potential of male fathead minnows by environmentally relevant exposures to 4-nonylphenolf
H.L. Schoenfuss, S.E. Bartell, T.B. Bistodeau, R.A. Cediel, K.J. Grove, Larry Zintek, K. E. Lee, L. B. Barber
2008, Aquatic Toxicology (86) 91-98
The synthetic organic compound 4-nonylphenol (NP) has been detected in many human-impacted surface waters in North America. In this study, we examined the ability of NP to alter reproductive competence in male fathead minnows after a 28 day flow-through exposure in a range of...
Environment and paleoecology of a 12 ka mid-North American Younger Dryas forest chronicled in tree rings
Irina P. Panyushkina, Steven W. Leavitt, Todd A. Thompson, Allan F. Schneider, Todd Lange
2008, Quaternary Research (70) 433-441
Until now, availability of wood from the Younger Dryas abrupt cooling event (YDE) in N. America ca. 12.9 to 11.6 ka has been insufficient to develop high-resolution chronologies for refining our understanding of YDE conditions. Here we present a multi-proxy tree-ring chronology (ring widths, “events” evidenced by microanatomy and macro...
Littoral zones as sources of biodegradable dissolved organic carbon in lakes
E.G. Stets, J.B. Cotner
2008, Canadian Journal of Fisheries and Aquatic Sciences (65) 2454-2460
A survey of 12 lakes in Minnesota, USA, was conducted to examine the factors controlling variability in biodegradable dissolved organic carbon (BDOC) concentration. The principal question addressed was whether BDOC concentration was more strongly related to lake trophic status or morphometric parameters. BDOC concentration was determined by incubating filtered lake...
Embryo toxicity of 2,3,7,8-tetrachlorodibenzo-p-dioxin to the wood duck (Aix sponsa)
T.P. Augspurger, D. E. Tillitt, S.J. Bursian, S.D. Fitzgerald, D.E. Hinton, R.T. Di Giulio
2008, Archives of Environmental Contamination and Toxicology (55) 659-669
We examined the sensitivity of the wood duck (Aix sponsa) embryo to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) by injecting the toxicant into their eggs. Six groups of wood duck eggs (n = 35 to 211 per trial) were injected with 0 to 4600 pg TCDD/g egg between 2003 and 2005. Injections were made...
Do non-native plant species affect the shape of productivity-diversity relationships?
J.M. Drake, E.E. Cleland, M. C. Horner-Devine, E. Fleishman, C. Bowles, M. D. Smith, K. Carney, S. Emery, J. Gramling, D.B. Vandermast, J.B. Grace
2008, American Midland Naturalist (159) 55-66
The relationship between ecosystem processes and species richness is an active area of research and speculation. Both theoretical and experimental studies have been conducted in numerous ecosystems. One finding of these studies is that the shape of the relationship between productivity and species richness varies considerably among ecosystems and at...
Environmental versus genetic influences on growth rates of the corals Pocillopora eydouxi and Porites lobata (Anthozoa: Scleractinia)
L.W. Smith, H.H. Wirshing, A.C. Baker, C. Birkeland
2008, Pacific Science (62) 57-69
Reciprocal transplant experiments of the corals Pocillopora eydouxi Milne Edwards & Haime and Porites lobata Dana were carried out for an 18-month period from September 2004 to March 2006 between two back reef pools on Ofu Island, American Samoa, to test environmental versus genetic effects on skeletal growth rates. Skeletal...
Numerical simulation of the paleohydrology of glacial Lake Oshkosh, eastern Wisconsin, USA
J.A. Clark, K.M. Befus, T.S. Hooyer, P.W. Stewart, T.D. Shipman, C.T. Gregory, D.J. Zylstra
2008, Quaternary Research (69) 117-129
Proglacial lakes, formed during retreat of the Laurentide ice sheet, evolved quickly as outlets became ice-free and the earth deformed through glacial isostatic adjustment. With high-resolution digital elevation models (DEMs) and GIS methods, it is possible to reconstruct the evolution of surface hydrology. When a DEM deforms through time as...
The critical role of volcano monitoring in risk reduction
R.I. Tilling
2008, Advances in Geosciences (14) 3-11
Data from volcano-monitoring studies constitute the only scientifically valid basis for short-term forecasts of a future eruption, or of possible changes during an ongoing eruption. Thus, in any effective hazards-mitigation program, a basic strategy in reducing volcano risk is the initiation or augmentation of volcano monitoring at historically active volcanoes...
Monitoring a supervolcano in repose: Heat and volatile flux at the yellostone caldera
J. B. Lowenstern, S. Hurwitz
2008, Elements (4) 35-40
Although giant calderas ("supervolcanoes") may slumber for tens of thousands of years between eruptions, their abundant earthquakes and crustal deformation reveal the potential for future upheaval. Any eventual supereruption could devastate global human populations, so these systems must be carefully scrutinized. Insight into dormant but restless calderas can be gained...
Assessing age in the desert tortoise Gopherus agassizii: Testing skeletochronology with individuals of known age
A.J. Curtin, G.R. Zug, P.A. Medica, J.R. Spotila
2008, Endangered Species Research (5) 21-27
Eight desert tortoises Gopherus agassizii from a long-term mark-recapture study in the Mojave Desert, Nevada, USA, afforded an opportunity to examine the accuracy of skeletochronological age estimation on tortoises from a seasonal, yet environmentally erratic environment. These 8 tortoises were marked as hatchlings or within the first 2 yr of...
Quantile regression applied to spectral distance decay
D. Rocchini, B.S. Cade
2008, IEEE Geoscience and Remote Sensing Letters (5) 640-643
Remotely sensed imagery has long been recognized as a powerful support for characterizing and estimating biodiversity. Spectral distance among sites has proven to be a powerful approach for detecting species composition variability. Regression analysis of species similarity versus spectral distance allows us to quantitatively estimate the amount of turnover in...
Hydroacoustic measures of Mysis relicta abundance and distribution in Lake Ontario
L. G. Rudstam, T. Schaner, G. Gal, B. T. Boscarino, R. O'Gorman, D.M. Warner, O. E. Johannsson, K.L. Bowen
2008, Conference Paper, Aquatic Ecosystem Health and Management
Mysis relicta can be observed on echograms as a sound scattering layer when they migrate into the water column at night to feed on zooplankton. However, quantitative measures of mysid abundance with hydroacoustics requires knowledge of mysid target strength (TS), a method of removing fish echoes and contribution from noise,...
Size of spawning population, residence time, and territory shifts of individuals in the spawning aggregation of a riverine catostomid
T.B. Grabowski, J. Jeffery Isely
2008, Southeastern Naturalist (7) 475-482
Little is known about the behavior of individual fish in a spawning aggregation, specifically how long an individual remains in an aggregation. We monitored Moxostoma robustum (Cope) (Robust Redhorse) in a Savannah River spawning aggregation during spring 2004 and 2005 to provide an estimate of the total number of adults...
Application of environmental groundwater tracers at the Sulphur Bank Mercury Mine, California, USA
M.A. Engle, F. Goff, D.G. Jewett, G.J. Reller, J.B. Bauman
2008, Hydrogeology Journal (16) 559-573
Boron, chloride, sulfate, ??D, ??18O, and 3H concentrations in surface water and groundwater samples from the Sulphur Bank Mercury Mine (SBMM), California, USA were used to examine geochemical processes and provide constraints on evaporation and groundwater flow. SBMM is an abandoned sulfur and mercury mine with an underlying hydrothermal system,...
Nutrient dynamics as indicators of karst processes: Comparison of the Chalk aquifer (Normandy, France) and the Edwards aquifer (Texas, U.S.A.)
B.J. Mahler, D. Valdes, M. Musgrove, N. Massei
2008, Journal of Contaminant Hydrology (98) 36-49
Karst aquifers display a range of geologic and geomorphic characteristics in a wide range of climatic and land-use settings; identification of transport dynamics representative of karst aquifers in general could help advance our understanding of these complex systems. To this end, nutrient, turbidity, and major ion dynamics in response to...
A test of the cross-scale resilience model: Functional richness in Mediterranean-climate ecosystems
D.A. Wardwell, Craig R. Allen, G.D. Peterson, A.J. Tyre
2008, Ecological Complexity (5) 165-182
Ecological resilience has been proposed to be generated, in part, in the discontinuous structure of complex systems. Environmental discontinuities are reflected in discontinuous, aggregated animal body mass distributions. Diversity of functional groups within body mass aggregations (scales) and redundancy of functional groups across body mass aggregations (scales) has been proposed...
Influences of the unsaturated, saturated, and riparian zones on the transport of nitrate near the Merced River, California, USA
Joseph L. Domagalski, S.P. Phillips, E.R. Bayless, C. Zamora, C. Kendall, R.A. Wildman, J. G. Hering
2008, Hydrogeology Journal (16) 675-690
Transport and transformation of nitrate was evaluated along a 1-km groundwater transect from an almond orchard to the Merced River, California, USA, within an irrigated agricultural setting. As indicated by measurements of pore-water nitrate and modeling using the root zone water quality model, about 63% of the applied nitrogen was...
Biodynamic modeling of PCB uptake by Macoma balthica and Corbicula fluminea from sediment amended with activated carbon
Pamela B. McLeod, S. N. Luoma, R.G. Luthy
2008, Environmental Science & Technology (42) 484-490
Activated carbon amendment was assessed in the laboratory as a remediation strategy for freshwater sediment contaminated with polychlorinated biphenyls (PCBs) from the Grasse River (near Massena, NY). Three end points were evaluated: aqueous equilibrium PCB concentration, uptake into semipermeable membrane devices (SPMDs), and 28-day bioaccumulation in the clam Corbicula fluminea....
