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Fault Formation In Porous Sedimentary Rocks At High Strain Rates, Wendy R.O. Key

Canyonlands Research Bibliography

No abstract provided.

Home Range Characteristics Of Mexican Spotted Owls In The Canyonlands Of Utah, D. W. Willey, C. Van Riper

Canyonlands Research Bibliography

We studied home-range characteristics of adult Mexican Spotted Owls (Slyix occidentalis lucida) in southern Utah. Twenty-eight adult owls were radio-tracked using a ground-based telemetry system during 1991-95. Five males arid eight females molted tail feathers and dropped transmitters within 4 wk. We estimated cumulative home ranges for 15 Spotted Owls (12 males, 3 females). The mean estimate of cumulative home-range size was not statistically different between the minimum convex polygon and adaptive kernel (AK) 95% isopleth. Both estimators yielded relatively high SD, and male and fernale range sizes varied widely. For 12 owls tracked during both the breeding and nonbreeding …

Particle Size, Caco3, Chemical, Magnetic, And Age Data From Surficial Deposits In And Around Canyonlands National Park, Utah, Harland Goldstein, Richard Reynolds, Marith Reheis, James Yount, Paul Lamothe, Helen Roberts, John Mcgeehin

Canyonlands Research Bibliography

No abstract provided.

Environmental Assessment : Middle Salt Creek Canyon Access Plan Canyonlands National Park, Utah, National Park Service, U.S. Department Of The Interior, Canyonlands National Park

Canyonlands Research Bibliography

Salt Creek is the largest drainage in the Needles district of Canyonlands National Park. The creek supports one of the most important riparian ecosystems in the park. It is also the heart of the Salt Creek National Register Archeological District, the area with the highest recorded density of archeological sites in the park. A tributary canyon contains the spectacular Angel Arch, a well-known geologic formation that for many years has been a destination point for park visitors. In 1998 the U.S. District Court for the State of Utah ruled, in a lawsuit filed by the Southern Utah Wilderness Alliance, that …

Fungi Associated With Biological Soil Crusts In Desert Grasslands Of Utah And Wyoming, Jack S. States, Martha Christensen

Canyonlands Research Bibliography

No abstract provided.

First-Year Movements By Juvenile Mexican Spotted Owls In The Canyonlands Of Utah, D. W. Willey, C. Van Riper

Canyonlands Research Bibliography

We studied first-year movements of Mexican Spotted Owls (Strix occidentalis lucida) during natal dispersal in canyonlands of southern Utah. Thirty-one juvenile Mexican Spotted Owls were captured and radiotracked during 1992-95 to examine behavior and conduct experiments related to the onset of natal dispersal. Juvenile Spotted Owls dispersed from their nest areas during September to October each year, with 85% leaving in September. The onset of movements was sudden and juveniles dispersed in varied directions. The median distance from nest area to last observed location was 25.7 km (range = 1.7-92.3 km). Three of 26 juveniles tracked (11%) were alive after …

Completing Canyonlands, Rober B. Keiter

Canyonlands Research Bibliography

Focuses on the proposal to follow the basin that defines the national boundaries of the Canyonlands National Park in Utah. Background of the establishment of the park; Role of the National Park Conservation Association and other environmentalist in advocating the proposal; Factors involved in the completion of the proposal.

Revegetation Of Disturbed Semiarid Grassland In Canyonlands National Park, Susan B. Goldberg

Canyonlands Research Bibliography

A grassland restoration project was conducted in Canyonlands National Park on an area recently disturbed due to construction. Two native grasses (Oryzopsis hymenoides and Stipa comata) were seeded with 18 different soil treatments. Stipa density and relative mycorrhizal colonization were measured. None of the soil treatments resulted in significantly greater Stipa density than the control treatment of seeding only plus water. There was very little correlation between Stipa density and mycorrhizal colonization based on the treatments (r2= 0.011 p = 0.05). Three treatments produced 3 to 5 times the VAN colonization as the control including spring cryptobiotic soil crusts, with …

Factors Influencing Development Of Cryptogamic Soil Crusts In Utah Deserts, David C. Anderson, Kimball T. Harper, Ralph C. Holmgren

Canyonlands Research Bibliography

The relation of some physical and chemical soil characteristics to cryptogamic crust development was determined from sites in semidesert regions of southern Utah. The effects of grazing on cryptogamic crust development also was examined. Electrical conductivity, percentage silt, and soil phosphorus were found to be correlated with well-developed cryptogamic crusts. Both total cryptogamic cover and the number of cryptogamic species decreased under grazing pressure. The management of rangelands, especially in arid regions, would be strengthened by understanding the role of cryptogamic crusts and considering them in range management decisions.

Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke

Canyonlands Research Bibliography

Canyonlands National Park is in about the center of the Canyon Lands section of the Colorado Plateaus physiographic province in southeastern Utah. The part of the park discussed embraces an area of about 400 square miles comprising isolated mesas, precipitous canyons, and dissected broad benches near the confluence of the Green and Colorado Rivers, the only perennial streams in the area. The climate is arid to semiarid; normal annual precipitation ranges from less than 8 to about 10 inches. Potential evapotranspiration is about 41 inches annually.

Geology of the park is characterized by nearly horizontal strata that dip gently northward. …