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Unique Frontal Sinuses In Fossil And Living Hyaenidae (Mammalia, Carnivora): Description And Interpretation, R.M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

Assessment Of Urban Heat Islands: A Multi-Sensor Perspective For The Dallas-Ft. Worth, Usa Region, Kevin P. Gallo, Timothy W. Owen

School of Natural Resources: Faculty Publications

Data acquired during the early to mid-1990s by several satellite-sensor systems were combined in an assessment of the urban heat-island effect for the Dallas-Fort Worth, TX region of the United States. Normalized difference vegetation index and radiant surface temperature were computed from NOAA-AVHRR data. Two measures of the anthropogenic light emitted by urban-related surface features were available from the DMSP-OLS. Landsat MSS data were used to provide estimates of the predominant land cover within the grid cells associated with the NOA-AVHRR and DMSP-OLS data. The multi-sensor analysis of the environment associated with seven climate observation stations in the Dallas-Ft. Worth …

Using Avhrr Data For Quantitative Estimation Of Vegetation Conditions: Calibration And Validation, Anatoly A. Gitelson, Felix Kogan, E. Zakarin, L. Spivak, L. Lebed

School of Natural Resources: Faculty Publications

NDVI-derived Vegetation Condition Index (VCI) was compared with vegetation density, biomass and reflectance measured in the fields. The VCI numerically estimates fluctuation of NDVI related to intra-annual weather change only and is a measure of weather impact on vegetation. Test fields were located in different climatic (annual precipitation 150-700 mm) and ecological zones (semi-desert to steppe-forest) with elevation from 200 to 700 m in Kazakhstan. A range of NDVI variation was from 0.05 to 0.47. The determination coefficient between AVHRR-derived vegetation state and actually measured vegetation density of more than 0.76 was achieved. For the first time it was shown …

Transformations Of Middle Eastern Natural Environments: Legacies And Lessons, Jeff Albert, Magnus Bernhardsson, Roger Kenna

Yale School of the Environment Bulletin Series

No abstract provided.

Narrow Hybrid Zone Between Two Subspecies Of Big Sagebrush (Artemisia Tridentata: Aeteraceae). V. Soil Properties, Han Wang, David W. Byrd, Jeffrey L. Howard, E. Durant Mcarthur, John H. Graham, D. Carl Freeman

Environmental Science and Geology Faculty Research Publications

We studied soils of the big sagebrush (Artemisia tridentata) hybrid zone at two locations in Utah. The elemental composition, depth, and pH of soil in the basin and mountain big sagebrush habitats differed significantly from each other and from the hybrid zone soil. The hybrid zone soil is not just a simple blend of the two parental habitat soils. Rather, it possesses novel characteristics found in neither parental habitat and is more variable than the parental habitat soils. Correspondence analyses show that the sites occupied by each parental taxon are chemically distinct. Moreover, the principal axes from the two study …

Climatology And Interannual Variability Of Wind Speeds In And Around Minnesota, Kevin J. Lawless, Katherine Klink

Journal of the Minnesota Academy of Science

Wind is receiving renewed attention as an energy resource. Unfortunately, many wind energy assessments are based on records that may not be representative of the long-term wind resource. To better evaluate wind energy potential in and around Minnesota, we analyze wind speeds from 1961 to 1990 for seven stations in the region at a height of about 6.1 m above ground level. We used hourly and three-hourly speed observations to develop a 30-year time series of mean monthly wind speeds, their maxima and minima, and the diurnal wind speed range. Simple linear regression was used to evaluate long-term trends in …

Building The Research Foundations Of Outdoor Education, Karen M. Fox, Leo H. Mcavoy, Anderson B. Young

Research in Outdoor Education

A preface to the journal "Research in Outdoor Education," volume 4 is presented by the authors on behalf of the Coalition for Education in the Outdoors (CEO) Research Committee.

An Integrative Review Of The Literature On Women In The Outdoors, Karla Henderson, Nina Roberts

Research in Outdoor Education

The intent of this integrative re­view was to examine approaches used in the existing literature about women and the outdoors, to determine the status of current research, and to suggest implica­tions for the future.

Front Matter, Coalition For Education In The Outdoors (Ceo)

Research in Outdoor Education

The Coalition for Education in the Outdoors initiated a Research Task Force in 1990 with the purpose of supporting the conduct of research in the field and the dissemination of the results. The symposium at Bradford Woods and these proceedings offer evidence of the success of this task force. At the first symposium in 1992, there was general agreement that the symposium be a regular occurrence. The 1994, 1996 and 1998 Symposia and these Proceedings are indicators of the Coalition's continued support of research in outdoor education. Information on future events will be available through the Coalition office.

This article …

"A Sense Of Competence." Re-Conceptualizing Issues Of Competence For Women In Outdoor Education, T. A. Loeffler

Research in Outdoor Education

Competence development in outdoor education is a complex process that is shaped by gender-role socialization, learning environments, and by individual differences. Outdoor educators need to further their un­derstanding of this process so they can fully empower themselves and their students. Outdoor programs need to be designed to support the development of both compe­tence in outdoor skills and a sense of com­petence in these skills so program partici­pants will be able to fully participate in out­door activities. This abstract provides an introduction to the issue of competence de­velopment and further discussion of this topic is available in Loeffler (1997).

Self-Efficacy And Adventure Programs: Transferring Outcomes To Everyday Life, Todd Paxton, Leo H. Mcavoy

Research in Outdoor Education

In the field of outdoor education, the be­lief that outdoor adventure programs have the ability to increase the participants' self-efficacy has long been. used to defend program existence and to give more credi­bility to the discipline (Berman & Ber­man, 1994; Cockrell, 1991; Ewert, 1989; Miles & Priest, 1990). Although outdoor adventure programs are based on the as­sumption that a positive effect on indi­viduals' self-efficacy will carry over into the participants' lives after the course, there is little empirical research on this topic. In Hattie, Marsh, Neill, & Richards' (1997) meta-analysis of research on adventure programs, they point out the need …

Factors Affecting The Personal And Social Outcomes Of Organized Camping, Marta K. Moorman

Research in Outdoor Education

Summer camp holds a special place in the minds of children. thoughts of camp bring images of swimming, hiking, laughing and making new friends. According to Dustiri (1989), the secret of organized camping is that camp is on a finite, human scale. Anyone can make a difference in their own comer of the world. Another important aspect of camp (Dustin, 1994) is creating a place for children to be children, not ''minia­ture adults" (p.28). Chenery (1984) sees the essential contribution of camp as. providing children with a space for spiritual development. Many factors could influence what sort of experiences campers …

Outdoor Leader Self Awareness And Its Relationship To Co-Leaders' Perceptions Of Influence, Mark C. Wagstaff

Research in Outdoor Education

The purpose of this study was to ex­amine the relationship between outdoor leader self-awareness and co-leaders' per­ceptions of leader influence. Self­-awareness was based on the concept of self-actualization (Maslow, 1968, 1970, 1971). The construct of influence was operationalized as power (French & Ra­ven, 1959).

Validity And Reliability Of The Outdoor Education Practicum Questionnaire, Thomas J. Quinn

Research in Outdoor Education

The purpose of this study was to de­sign a reliable and valid instrument to measure perceived levels of anxiety of students en­rolled in a resident outdoor adventure educa­tion course, and to support a four factor model of perceived levels of anxiety of students in such programs. The four proposed factors or latent variables include: 1) Level of Control, 2) Program Inadequacies, 3) Personal Inade­quacies, and 4) Level of Comfort.

Validating Predictors To Determine Optimal Adventure In Whitewater Kayaking, Chris D. Jones, Steven J. Hollenhurst

Research in Outdoor Education

This study attempts to validate predictors of optimal adventure within an on-site whitewater kayaking setting using a modification of the Experience Sampling Method (ESM). Based on the flow theory and Martin and Priest's (1986) Adventure Experience Paradigm, it was expected that measures of challenge-skill and risk-competence would be correlated and predict indicators of an optimal or peak adventure experience. Additionally, it was expected that differences would be found in the levels of perceived challenge and risk according to the difficulty of river stages.

Pitfalls To Avoid In Adventure Education Outcome Research, Jim Sibthorp

Research in Outdoor Education

There has been much consensus that adventure education needs more theory building and theory testing, yet the meth­odological problems associated with much of the empirical and quantitative research are making this a daunting task. Future . research endeavors should (a) make com­parisons t}lat make sense, (b) use random assignment to experimental and con­trol/comparison groups, (c) use and report appropriate statistical procedures, ( d) take care to assess validity of research instru­ments for populations under study, (e) be willing to openly discuss project biases and limitations.

Efficacy Of A Tr Self-Esteem Program For Adolescents With Emotional Disturbances In A Treatment Setting, Ramon B. Zabriskie

Research in Outdoor Education

The purpose of this study was to determine the effectiveness of a modularized therapeutic recreation self-esteem program (that included outdoor adventure based components) provided for adolescents in a residential treatment center. Data were also collected on demographic variables including age, gender, and ethnicity. Subjects consisted of 112 adolescent patients ranging from ages 12 to 17, with an average length of stay of nine months to one year.

Learning Outdoor Recreation Skills In A Safe Place: Lessons From A Single Sex Program, Deb Jordan

Research in Outdoor Education

The primary intent of this study was to ascertain the reasons women participate in single-sex outdoor recreation workshops to learn outdoor recreation skills. A secondary issue was to identify reasons for participation in outdoor recreation activities.

Evaluating Short Term And Long Term Retention Of Experiences Associated With An Interpretive School Field Trip, Jim Sibthorp, Doug Knapp

Research in Outdoor Education

The strong evidence that an interpre­tive experience can promote initial knowl­edge retention sets up a more difficult ques­tion: how long do these students hold on to . this information? More precisely, what do the students remember one month or more after the initial treatment? Are these memo­ries associated with interpreter-derived pro­gram objectives or tertiary variables such as social or environmental factors? Can the memories from this experience impact a stu­dent's attitude toward the resource site? These are questions that are looked at through this pilot study evaluating short term and long term retention of experiences associated with an interpretive school …

The Future Of Research In Outdoor Education, Simon Priest

Research in Outdoor Education

Editor's Note: The CEO research sym­posia have always included working ses­sions on topics and issues of concern to participants. At the fourth symposium, the topic was no less than "the future of research in our field." Masterfully fa­cilitated by Simon Priest, symposium participants alternated between plenary sessions and smaller working groups and sought to develop agendas and strategies that might advance our field in important ways. Pleased with the re­sults, everyone asked Simon to prepare a summary, which he promptly did and distributed by e-mail. For- the record, we conclude these proceedings by printing Simon Priest's outline-style summary of this …

Controversial Issues In Adventure Education, Tom Potter, Scott Wurdinger

Research in Outdoor Education

The book, Controversial Issues in Adventure Education, will address some of the most controversial topics in the field of adventure education. It will consist of 15 questions set up in a debate format where adventure education professional will present opposing viewpoints on each issue.

Venomous Snakes, Gerald W. Wiscomb, Terry A. Messmer

All Archived Publications

No abstract provided.

Non-Venomous Snakes, Terry A. Messmer, Gerald W. Wiscomb

All Archived Publications

No abstract provided.

Climate Change And Utah, United States Environmental Protection Agency

Elusive Documents

No abstract provided.

Climate Of Salt Lake City, Utah, William J. Alder, Laurence S. Nierenberg, Sean T. Buchanan, William Cope, James A. Cisco, Craig C. Schmidt, Alexander R. Smith, Wilbur E. Figgins

Elusive Documents

No abstract provided.

Breeding Ecology And Behavior Of The Hawaiian Hawk, Curtis R. Griffin, Peter W. C. Paton, Thomas S. Baskett

Natural Resources Science Faculty Publications

We studied the ecology of the endangered Hawaiian Hawk (Buteo solitarius) on the island of Hawaii for three breeding seasons. Their breeding strategy is a prime example of a K-selected species characteristic of many birds in tropical environments: clutch size was one and brood-rearing was among the longest reported for any diurnal raptor. Twenty-eight nests were found in a variety of native and exotic habitats. Incubation lasted 38 days, nestlings fledged after 59-63 days, and parents cared for fledglings for an average of 30.2 weeks, which was 2.5 to 10 times longer than similar-size temperate zone raptors. Males …

The John Muir Newsletter, Winter 1998, The John Muir Center For Regional Studies

Muir Center Newsletters (1981-2015)

mm IWinter 1998 NEWSLETTER Writing or Living? John Muir's Writerly Identity and Ambivalence by Randall Roorda, University of Missouri, Kansas City (Editor's note: As many fans of John Muir realize, Muir was not comfortable with writing for publication. This analysis of that ■'issue is a revision of a paper presented earlier to the Western Literature Association. We wish to thank the State University of lew York Press for permission to print this excerpt from the forthcoming book, Dramas of Solitude: Narratives of Retreat in American Nature Writing, by Randall Roorda.) lite aspect of John Muir's lite I offer is that …

Innovations In Forestry: Stewardship, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

1 folded sheet ([6] p.) : ill. ; 28 cm

Innovations In Forestry: Sustainable Forestry And Certification, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

1 folded sheet ([6] p.) : ill. ; 28 cm

Resource Law Notes Newsletter, No. 42, Winter Issue, Feb. 1998, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.