Conflicting hypotheses predict how traits mediate species establishment and community assembly. Traits of newly establishing individuals are predicted to converge, or be more similar to the resident, preexisting community, when the biotic or abiotic environment favors a single best phenotype, but ar

In the alpine landscape, characterized by high spatiotemporal heterogeneity and barriers, divergent selection is likely to lead to local adaptation of plant populations either through adaptive genetic differentiation or through phenotypic plasticity. The relative importance of these processes has ra

Invasive plants are hypothesized to have higher fitness in introduced areas due to their release from pathogens and herbivores and the relocation of resources to reproduction. However, few studies have tested this hypothesis in native and introduced regions. A biogeographical approach is fundamental

By reducing current velocity, tidal marsh vegetation can diminish storm surges and storm waves. Conversely, currents often exert high mechanical stresses onto the plants and hence affect vegetation structure and plant characteristics. In our study, we aim at analysing this interaction from both angl

Click to increase image sizeClick to decrease image size Additional informationNotes on contributorsTom RosemeyerTom Rosemeyer is the owner of Red Mountain Exploration and has mined and collected minerals in the San Juan Mountains for the last twenty years.

Supercooled liquid water (SLW) and wind measurements were made over the Grand Mesa of western Colorado during the period late January through March, 1986. Observations were obtained with an instrumented aircraft, a tower-mounted icing rate meter, and an acoustical sounder. These data were used to es

Comparing soil pedons from a trail and a nearby equivalent undisturbed pedon allows for a field comparison of changes in soil morphology due to visitor use. The paired pedons technique applied to trails from the canyon rim to the river at the Black Canyon of the Gunnison National Monument successful

Recent work in central Utah has outlined the broader features of the area's thrust geometry. Although individual interpretations differ, most models indicate the region is similar to better understood segments of the Cordilleran thrust belt. Poor and limited seismic data and the paucity of drill-hol

Siliciclastic sediments of the Proterozoic Uncompahgre Group can be subdivided into stratigraphic units of quartzite (Q) and pelite (P); these units include a basal, fining- and thinning-upward retrogradational sequence (Q1-P1) that records the transition from an alluvial to a shallow-marine setting

orest vegetation classified by habitat types and community types in Colorado are tabulated. Fifteen series and 161 habitat and community types are identified. However, the habitat and com- munity types have been grouped into fewer categories, having similar characteristics or synonymous names.

Abstract The Black Canyon in southwestern Colorado is easily reached by passenger car from U.S. 50 (Fig. 1). Turn north 8 mi (13 km) east of Montrose, Colorado, to reach Black Canyon of the Gunnison National Monument in the most impressive part of the canyon. The National Monument boundary is 5 mi (

Abstract The carbonatite complex at Iron Hill is located southeast of the town of Powderhorn along Cebolla Creek, Deldorado Creek, and Beaver Creek in Gunnison County, Colorado. To reach the complex, travel 9 mi (14.5 km)west of Gunnison on U.S. 50 to the intersection with Colorado 149, turn south o

Brant Calkin. February 8, 1978.

United States Forest Service. 1978.

John D. Vanderhoof. 1978.

Town of Crested Butte. June 27, 1978.