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Roost Sites Used By Sandhill Crane Staging Along The Platte River, Nebraska, Bradley S. Norling, Stanley H. Anderson, Wayne A. Hubert
Roost Sites Used By Sandhill Crane Staging Along The Platte River, Nebraska, Bradley S. Norling, Stanley H. Anderson, Wayne A. Hubert
Great Basin Naturalist
We assessed the influence of water depth, extent of unobstructed view, and human disturbance features on use of roost sites by Sandhill Cranes along the Platte River, Nebraska, during spring migratory stopover. Aerial photos taken near dawn were used to determine areas of flock use and habitat availability in four sample reaches, and measurements were made on the ground at flock roost areas. In general, depths of 1–13 cm were used by sandhill cranes in greater proportion than those available. Exposed sandbars and depths >20 cm were avoided, while depths of 14–19 cm were used in proportion to their availability. …
Red Butte Canyon Research Natural Area: History, Flora, Geology, Climate, And Ecology, James R. Ehleringer, Lois A. Arnow, Ted Arnow, Irving B. Mcnulty, Norman C. Negus
Red Butte Canyon Research Natural Area: History, Flora, Geology, Climate, And Ecology, James R. Ehleringer, Lois A. Arnow, Ted Arnow, Irving B. Mcnulty, Norman C. Negus
Great Basin Naturalist
Red Butte Canyon is a protected, near pristine canyon entering Salt Lake Valley, Utah. It contains a well-developed riparian zone and a perennial stream; hillside vegetation ranges from grasslands on the lower limits to Douglas-fir and aspen stands at the upper elevations. In this paper we describe the history of human impact, natural history aspects of climate, geology, and ecology, and faunal and floral information for key species in the canyon. The role and importance of Research Natural Areas is discussed, particularly with respect to the need to protect Red Butte Canyon—one of the few remaining undisturbed riparian ecosystems in …
Vegetation Associated With Two Alien Plant Species In A Fescue Grassland In Glacier National Park, Montana, Robin W. Tyser
Vegetation Associated With Two Alien Plant Species In A Fescue Grassland In Glacier National Park, Montana, Robin W. Tyser
Great Basin Naturalist
No abstract provided.
Relating Soil Chemistry And Plant Relationship In Wooded Draws Of The Northern Great Plains, Marguerite E. Voorhees, Daniel W. Uresk
Relating Soil Chemistry And Plant Relationship In Wooded Draws Of The Northern Great Plains, Marguerite E. Voorhees, Daniel W. Uresk
Great Basin Naturalist
Soils of the green ash/chokecherry habitat type in northwestern South Dakota were evaluated for 22 properties to determine whether any could be correlated with density of chokecherry (Prunus virginiana) and snowberry (Symphoricarpos occidentalis). Surface soils were moderately fertile, with high levels of all elements except phosphorus and nitrogen. Soils were fine textured with moderately high cation exchange capacity and saturation percentages. However, soils were nonsaline-nonalkaline with low amounts of exchangeable sodium. None of the soil properties showed good correlation with chokecherry and snowberry densities. Greatest correlations were found between each of the shrub species and grass.