Treesearch

The purpose of this researchwas to evaluate recreationists' comprehension of International Symbols used on the Angeles and San Bernardino National Forests in southern California. Data were collected from 262 recreationists during the summer months 2002. Bilingual teams administered the survey using instruments available in English and Spanish. The 20 International Symbols used in the study included 13 from on-line sources and seven Forest-produced symbols. Each unique response for the symbols was coded for level of correctness by two independent coders using the International Standards...

The isotopic composition of nitrate collected from aerosols, fog, and precipitation was measured and found to have a large 17O anomaly with Δ17O values ranging from 20‰ to 30‰ (Δ17O δ17O - 0.52(δ18O)). This 17O anomaly was used to trace atmospheric deposition of nitrate to a semiarid ecosystem in southern California. We demonstrate that the Δ17O signal is a conserved tracer of atmospheric nitrate deposition and is a more robust indicator of N deposition relative to standard δ18O techniques. The data indicate that a substantial portion of nitrate found in the local soil, stream, and...

Moderate physical activity (PA) improves physical fitness measures (i.e., aerobic capacity, agility, flexibility, body composition, and muscular endurance and strength). In addition to numerous physiological benefits, PA has been shown to increase cognitive and emotional functioning. These benefits lead to improved immune response and have been associated with increases in health and quality of life. PA has also been linked with reduced risk in cardiovascular disease, type-2 diabetes, numerous chronic diseases, and all-cause mortality. These findings are well established (US Department of...

Monitoring is required of land managers and conservation practitioners to assess the success of management actions. "Shortcuts" are sought to reduce monitoring costs, most often consisting of the selection of a small number of species that are closely monitored to represent the status of many associated species and environmental correlates. Assumptions associated with such shortcuts have been challenged, yet alternative approaches remain scant. We evaluated an approach that departs significantly from the approach of selecting a few representative species. We explored two primary assertions:...

Welcome on behalf of SFSU to attendees of the Social Aspects and Recreation Research Symposium, our distinguished keynote speakers and guests. Tonight I want to give you a brief background on SFSU and its connections with this conference. SFSU’s mission is create and maintain an environment of learning, research and community service. We serve over 24,000 widely diverse students, faculty conduct research on today’s most pressing issues and we provide service to our community and individual professions.