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The John Muir Newsletter, Spring 2008, The John Muir Center For Environmental Studies

Muir Center Newsletters (1981-2015)

John Muir Newsletter University of toe Pacific, Stockton, CA Vdlume,18, Number 2 Spring 2008 _EI Reflections on Muir's 1868 Walk from Oakland to Gilroy A Study in Literature and Environment Howard Cooley Belmont, California "See how God writes history. No technical knowledge is required; only a calm day and a calm mind. " Yellowstone National Park Atlantic Monthly, April 1898 John Muir wrote extensively about his 1869 walk to Yosemite from Snelling in the Central Valley of California, and this was the story that was published as My First Summer In The Sierra in 1911; thus it is also the …

The Polar Thaw: An Analysis Of The Impacts Of Climate Change On The Environment And Geopolitics Of The Arctic Polar Region, Alexandra Stoicof

Independent Study Project (ISP) Collection

The issues facing the Arctic region today are of relatively new importance on the agendas of environmentalists, lawyers, and national governments. Global warming is affecting the polar regions at a faster pace than the rest of the world, and is drastically changing the ecosystem and viability of the indigenous groups who depend on the environment of the tundra. The forced adaptation of the natives has lead to convictions of human rights and debates over the accountability of the world to affected communities. The retreat of Arctic sea-ice also exposes another area of controversy; the claims to the resources and passageways …

Conceptions Of Wilderness In Tasmania, Sam Adels

Independent Study Project (ISP) Collection

With this project I set out collect and compare different conceptions of wilderness from individuals on all sides of the ongoing wilderness protection versus forestry debate in Tasmania. I purposed to share the results with all parties to bring them together to cooperate and work towards wilderness protection and sustainable forestry for the future of Tasmania. I spent 5 weeks in April and May of 2008 researching the history of the concept of wilderness as well as Tasmanian wilderness issues. I interviewed 11 subjects, involved in the wilderness versus forestry debate in many different arenas, including forest ecologists, wilderness academics, …

Scwds Briefs: Volume 24, Number 1 (April 2008), Gary L. Doster , Editor, Scwds Briefs, Michael J. Yabsley

Southeastern Cooperative Wildlife Disease Study: Publications

Table of Contents:

National Feral Swine Mapping System

Feral Hog Conference

Wildebeest MCF in U.S. Cattle

The Value of Wildlife Recreation

Unusual Antlered Doe

White Nose Syndrome in Bats

New Myxozoan Parasite in Ducks

Duncan New Director in Virginia

SCWDS Personnel Awards

Colorado College State Of The Rockies Report Card, David Havlick, Walter E. Hecox, Christopher B. Jackson, Matthew K. Reuer

Publications (SD)

The critical research topics for the 2008 Report Card include immigration, affordable housing, renewable energy resources, river restoration and restoration economies, and wildlands.

Tracing Nutrient Inputs Into A Eutrophic Lake Using Nitrogen Isotopes, Wilgreen Lake, Madison County, Kentucky, Walter S. Borowski, Theresa A. Aguiar

EKU Faculty and Staff Scholarship

Wilgreen Lake is a dammed lake that has been classified as nutrient-impaired (303d list) by the EPA and State of Kentucky. The lake is moderately-sized covering 169 acres (0.7 km²), and drains a watershed with residential developments, cattle pasture, modified woodlands, and some industrial/urban usage in the city of Richmond. The principal tributaries are Taylor Fork and Old Town Branch that meet to form the trunk of the lake approximately one mile in length. The upper reaches of Taylor Fork are adjacent to a densely-packed (quarter-acre lots) housing development with septic systems. Old Town Branch drains cattle pasture …

Waste Management Education In Samoa: A Collection Of Case Studies On Present Issues, Kathy Feeney

Independent Study Project (ISP) Collection

Despite the presence of environmental education and awareness programs, Samoa still faces many environmental problems today, especially in the area of waste management. With the influx of packaged goods into a society that had always lived off the land, Samoans have had to change their conception disposal of rubbish. In schools, students are learning about waste management, yet litter and improper disposal of waste continues to be an issue. In order to understand this dichotomy exists, surveys were conducted at eight secondary schools on ‘Upolu and Savai’i to determine what kinds of waste exist at different schools and how much …

Potential Future Changes Of The Terrestrial Ecosystem Based On Climate Projections By Eight General Circulation Models, Clement Alo, Guiling Wang

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

A number of previous modeling studies have assessed the implications of projected CO2-induced climate change for future terrestrial ecosystems. However, although current understanding of possible long-term response of vegetation to elevated CO2 and CO2-induced climate change in some geographical areas (e.g., the high-latitude regions) has been strengthened by dint of accumulating evidence from these past studies, it is still weak in others. This study examines the responses of global potential natural vegetation distribution, net primary production (NPP), and fire emissions to future changes in atmospheric CO2 concentration and climate using the National Center for Atmospheric Research Community Land Model's dynamic …

Land Use Influences The Spatiotemporal Controls On Nitrification And Denitrification In Headwater Streams, Clay P. Arango, J. L. Tank

All Faculty Scholarship for the College of the Sciences

N and C cycles in headwater streams are coupled, and land use can modify these cycles by increasing N availability and removing riparian vegetation. To increase our understanding of how land use modifies the controls on N cycling, we quantified rates of 2 microbial N transformations in a total of 18 agricultural and urban streams (with and without riparian buffers) for 3 y to examine how riparian vegetation and land use influence sediment nitrification and denitrification. Nitrification rates were highest in agricultural streams in late spring. Nitrification was not related to streamwater NH₄⁺ concentrations but was positively related …

Seasonal Changes In Stratification And Oxygen Content Of A Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Jill Hunter, Walter S. Borowski

EKU Faculty and Staff Scholarship

Wilgreen Lake (Madison County, Kentucky) is listed by the Environmental Protection Agency as nutrient-impaired. The overabundance of nutrients is likely linked to the land-use practices in this area. Cattle pasture, residential developments served by septic systems, and urban/industrial areas lie in the lake’s watershed. We have studied the lake for two years to characterize its physical and chemical characteristics, and to identify nutrient sources.

The 2007 field season began in March and continued through October. We measured temperature and oxygen levels along with other parameters at 1-meter depth intervals at 19 stations distributed along the length of the lake and …

Using E. Coli And Bacteroides Distribution And Abundance In A Eutrophic Lake As A Tracer For Nutrient Inputs, Wilgreen Lake, Madison County, Kentucky, Theresa A. Aguiar, Walter S. Borowski, Alice C. Layton, Larry Mckay

EKU Faculty and Staff Scholarship

Wilgreen Lake is a eutrophic lake that has been listed on the EPA’s 303d list as nutrient impaired. Potential sources of this impairment are likely from humans, cattle manure, and fertilizers. We suspect that the majority of nutrients originate from human sources, namely from septic tank effluent emanating from key housing developments ringing the lakeshore. We test our hypothesis with conventional microbial assays (Escherichia coli) and RT-PCR techniques (Bacteroides).

We took water samples at 19 sampling locations on 4 occasions, and measured the abundance of Escherichia coli using IDEXX methods. Corresponding sub-samples slated for potential PCR …

Regional Analysis Of Trend And Step Changes Observed In Hydroclimatic Variables Around The Colorado River Basin, William Paul Miller, Thomas C. Piechota

Civil and Environmental Engineering and Construction Faculty Research

Recent research has suggested that changes in temperature and precipitation events due to climate change have had a significant impact on the availability and timing of streamflow. In this study, monthly temperature and precipitation data collected over 29 climate divisions covering the entire Colorado River basin and monthly natural flow data from 29 U.S. Geological Survey (USGS) gauge locations along the Colorado River are investigated for trend or step changes using parametric and nonparametric statistical tests. Temperature increases are persistent (at least 10 climate divisions over 6 months in trend analysis) throughout the year over the Colorado River basin, whereas …

Water Current ,Volume 40, No. 1, Winter 2008

Water Current Newsletter

Water Quality Subject of Fifth Water Law, Policy and Science Conference By Steve Ress
Water Center History nears Completion By Steve Ress
A Wake-up Call on Climate Change
Meet the Faculty
Planning Begins for June Tour of Republican River Basin By Steve Ress
LB 701: Is it an Answer to Nebraska’s Republican River Problems? By Katherine Kalisek-Vogel
Griffin Named Groundwater Foundation President
Jackson Joins Water Center as Intern
Spring Seminars Continue Through April 16
Nebraska DNR Sponsors Modeling Group Meetings By Steve Ress
Nebraska’s Current Top 10 Water Challenges
ENWRA: Accessing Groundwater Resources in Eastern Nebraska By Julie Wragge
Ethanol …

Derek Ford Oral History Interview With Dr. Philip Van Beynen, January 24, 2008, Derek Ford (Interviewee), Philip Van Beynen (Interviewer)

Environmental Sustainability Oral Histories

Dr. Derek Ford, karst science authority and author, begins the interview discussing his childhood in and around the city of Bath, England and the beginnings of his interest in rock climbing, cave diving, and cave mapping. Special attention is given to his relationship to the transition from the physiographic approach to geography to a quantitative approach. He elaborates on his friendship with eminent geomorphologist Paul Williams and how they came to write their book together. The conversation continues with an in-depth discussion of Dr. Ford's major scientific breakthroughs and notable publications with various research partners. He reflects on his career …

A Test Of The Cross-Scale Resilience Model: Functional Richness In Mediterranean-Climate Ecosystems, Donald A. Wardwell, Craig R. Allen, Garry D. Peterson, Andrew J. Tyre

School of Natural Resources: Faculty Publications

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 to increase resilience. We evaluate that proposition by analyzing mammalian and avian communities of Mediterranean-climate ecosystems. We first determined that body mass distributions for each animal community were discontinuous. We then calculated the variance in richness of function across aggregations in each community, and compared observed values with distributions created …

Temporal Variations In Physical And Chemical Features Of Cryoconite Holes On Canada Glacier, Mcmurdo Dry Valleys, Antarctica, Andrew G. Fountain, Thomas H. Nylen, Martyn Tranter, Elizabeth A. Bagshaw

Geography Faculty Publications and Presentations

Cryoconite holes in the McMurdo Dry Valleys are ice-lidded, thus isolating the pools of water from the atmosphere and from potential surface melt. Hourly measurements of ice and water temperature and water electrical conductivity (EC) were recorded to broadly characterize the physical and chemical changes on daily to seasonal timescales. Overall, subsurface ice/water temperatures were typically several degrees warmer than air temperatures, underscoring the importance of subsurface solar heating. At no time was surface melt observed and the holes melted from within. Detailed differences in the timing and magnitude of both temperature and EC variations during melt-out and freezeup existed …

Equilibrium Sampling Used To Monitor Malodors In A Swine Waste Lagoon, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

Buffered, Lagged, Or Cooled? Disentangling Hyporheic Influences On Temperature Cycles In Stream Channels, Alicia S. Arrigoni, Geoffrey C. Poole, Leal A. K. Mertes, Scott J. O'Daniel, William W. Woessner, Steven A. Thomas

School of Natural Resources: Faculty Publications

We monitored summertime base flow water temperatures of hyporheic discharge to surface water in main, side, and spring channels located within the bank-full scour zone of the gravel- and cobble-bedded Umatilla River, Oregon, USA. Diel temperature cycles in hyporheic discharge were common, but spatially variable. Relative to the main channel’s diel cycle, hyporheic discharge locations typically had similar daily mean temperatures, but smaller diel ranges (compressed by 2 to 6°C) and desynchronized phases (offset by 0 to 6 h). In spring channels (which received only hyporheic discharge), surface water diel cycles were also compressed (by 2 to 6°C) and desynchronized …

Estimation Of Net Ecosystem Carbon Exchange For The Conterminous United States By Combining Modis And Ameriflux Data, Jingfeng Xiao, Qianlai Zhuang, Dennis D. Baldocchi, Beverly E. Law, Andrew D. Richardson, Jiquan Chen, Ram Oren, Gregory Starr, Asko Noormets, Siyan Ma, Shashi Verma, Sonia Wharton, Steven C. Wofsy, Paul V. Bolstad, Sean P. Burns, David R. Cook, Peter S. Curtis, Bert G. Drake, Matthias Falk, Marc L. Fischer, David R. Foster, Lianhong Gu, Julian L. Hadley, David Y. Hollinger, Gabriel G. Katul, Marcy Litvak, Timothy A. Martin, Roser Matamala, Steve Mcnulty, Tilden P. Meyers, Russell K. Monson, J. William Munger, Walter C. Oechel, Kyaw Tha Paw U, Hans Peter Schmid, Russell L. Scott, Ge Sun, Andrew E. Suyker, Margaret S. Torn

School of Natural Resources: Faculty Publications

Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of the tower footprint. To quantify the net exchange of carbon dioxide between the terrestrial biosphere and the atmosphere for regions or continents, flux tower measurements need to be extrapolated to these large areas. Here we used remotely sensed data from the Moderate Resolution Imaging Spectrometer (MODIS) instrument on board the National Aeronautics and Space Administration’s (NASA) Terra satellite to scale up AmeriFlux NEE measurements to the …

What Limits Fire? An Examination Of Driver's Of Burnt Area In Southern Africa, Sally Archibald, David P. Roy, Brian W. Van Wilgen, Robert J. Scholes

GSCE Faculty Publications

The factors controlling the extent of fire in Africa south of the equator were investigated using moderate resolution (500 m) satellite-derived burned area maps and spatial data on the environmental factors thought to affect burnt area. A random forest regression tree procedure was used to determine the relative importance of each factor in explaining the burned area fraction and to address hypotheses concerned with human and climatic influences on the drivers of burnt area. The model explained 68% of the variance in burnt area. Tree cover, rainfall in the previous 2 years, and rainfall seasonality were the most important predictors. …

Phylogeography Of Smallmouth Bass (Micropterus Dolomieu) And Comparative Myology Of The Black Bass (Micropterus, Centrarchidae), William Calvin Borden

ETD Archive

Biogeographic patterns were investigated within a single species and among its congenerics. Smallmouth bass (Micropterus dolomieu) were characterized by portions of the cytochrome b gene and the control region although bass in Lake Erie were also evaluated using eight nDNA microsatellites. Overall, little population structure was observed among sites in Lake Erie which was surprising given that most male smallmouth bass exhibit nest site fidelity. But, these lake bass were divergent from bass residing in nearby tributaries indicating that lacustrine bass are reproductively isolated from riverine bass even though both groups may spawn in the same rivers. Adjacent riverine populations …

The Geography Of Open Dumps In Rural Appalachia, Bj Jones

Theses, Dissertations and Capstones

The dumping of waste into the environment has plagued the mountains of Rural Appalachia for decades. Tire, cars, appliances, and drug producing materials routinely are illegally disposed of via open dumps. The purpose of this research is to reveal the motives of the damaging open dumpsites that damage the beauty of the Appalachian Mountains. The states of Kentucky and West Virginia were analyzed through the use of GIS and descriptive statistics. The distance to refuse centers and application of disposal fees are the leading factors that result to the use of open dumps.

A Route For The Overland Stage, Jesse G. Petersen

All USU Press Publications

The 1859 exploration of the Great Basin by army topographical engineer James Simpson opened up one of the West's most important transportation and communication corridors, a vital link between the Pacific Coast and the rest of the nation. It became the route of the Pony Express and the Overland Mail and Stage, the line of the Pacific telegraph, a major wagon road for freighters and emigrants, and, later, the first transcontinental auto road, the Lincoln Highway, now Highway 50. No one has accurately tracked or mapped Simpson's original route, until now. Jesse Petersen shows in words, maps, and photos exactly …

A Cost Benefit Analysis For The Denitrification Of Waste Water Utilizing Wetlands Versus Wastewater Treatment Facilities, Jennifer Michelle Bell

Theses Digitization Project

The purpose of this project was to not only identify current regulatory issues, as they pertain to water and denitrification, but also could be used to assist policy makers with identifying other factors to be considered when choosing the appropriate advanced treatment systems for their facilities.

Effects And Response Of Dual Phase Extraction (Dpe) Remediation On The Former Sun City Soco Gas Station, Travis Winter Meier

Theses Digitization Project

The purpose of this project is to target three zones for both soil and groundwater remediation. It is the intent that by targeting the source areas of the contamination with remedial processes that consequently the continued introduction and dispersal of the hydrocarbon compounds will be prevented. The former Sun City SoCo gas station has large amounts of hydrocarbon compounds present in the soil and upper groundwater aquifer located beneath the site.

Ua12/13 Wku Sustainability Report 2007-2008, Christian Ryan-Downing

Sustainability Publications and Resources

No abstract provided.

Environmental Policy Aid Under Uncertainty, J. Mysiak, J. D. Brown, J. M. L. Jansen, N. W. T. Quinn

United States Department of Commerce: Staff Publications

Recent emphasis on uncertainty in environmental decision making reflects numerous changes in environmental science and policy making over the past few decades. Firstly, environmental policy problems increasingly involve large, interconnected and complex social choices. For example, climate change, ozone depletion, biodiversity loss, genetically-engineered crops, environment-related diseases and health risks involve large scale, long-term impacts, whose precise causes and consequences are often poorly understood. Given these uncertainties and the risk of irreversible environmental changes, different perspectives about the nature, policy implications, or even the existence of a problem, are inevitable (Rittel and Webber, 1973; Sarewitz, 2004).

Identifying And Addressing Contemporary Issues In Central Coast Oak Woodlands, Erin Rice, Douglas D. Piirto, Royce Larsen, Bill Tietje, Ryan Cooper, Ulric Lund

Natural Resources Management and Environmental Sciences

Recently, questions about the extent of thinning, the sustainability of forest management practices, and the compatibility with other uses were raised by the media, agency personnel, and environmental groups. In response, University of California Cooperative Extension and Cal Poly San Luis Obispo’s Natural Resources Management Department collaborated to address these issues. In March 2006, a questionnaire was mailed to landowners of properties greater than 100 acres in Santa Barbara, San Luis Obispo, and Monterey counties. A total of 2,786 questionnaires were mailed, with 450 completed and returned (16 percent). The respondents were highly educated, holding degrees in areas other than …

Sampling Of Malodorous Compounds In Air Using Stir Bar Sorbtive Extraction, John H. Loughrin, Nanh Lovanh, Arturo I. Quintanar, Rezaul Mahmood

High Plains Regional Climate Center: Staff Publications

Twisters, (poly)‐dimethylsiloxane‐coated magnetic stir bars, were used to measure compounds typical of swine manure malodor in air. In initial experiments, a time to achieve equilibrium was determined by preloading the stir bars with ten compounds with a range of volatilities and polarities and then monitoring their loss. The rate of loss was dependent on compound volatility, and the time for equilibrium to be attained varied widely, from 22 min for phenol to 210 min for skatole. To test whether the Twisters would respond linearly over a range of concentrations, the stir bars were placed in vented jars with solutions of …

Technology-Aided Participative Methods In Environmental Assessment: An International Perspective, Ainhoa Gonzalez, Alan Gilmer, Ronan Foley, John Sweeney, John Fry

Articles

Provisions for citizen involvement in the assessment of potential environmental effects of certain plans, programmes and projects are present in current legislation. An international survey revealed that public participation is common practice in European and some other countries worldwide. However, a number of issues are observed to affect public involvement in EIA/SEA processes and expert opinion differs when evaluating the effectiveness of existing participative methods. Results suggest that technology-aided methods can improve traditional participation processes. In particular, GIS has the potential to increase community knowledge and enhance involvement by communicating information more effectively. Variable accessibility to technology and data quality …