Summary Leading edges of population expansion provide unique opportunities for individuals to elevate their social and economic status. However, dispersal into unknown areas may have high costs such as violence associated with conflicts over resources, unfamiliar and harsh ecological conditions, and

In previous reports on the Cretaceous rocks of NM, writers have followed the nomenclature established by Cross, and have described all the rocks between the Dakota Sandstone and the Mesaverde coal measures as Mancos Shale. Lee and Darton, in describing the rocks of central and northeastern NM, recog

Research Article| May 01 2000 "A Promise Long Deferred": Federal Reclamation on the Colorado River Indian Reservation Ann Caylor Ann Caylor Search for other works by this author on: This Site PubMed Google Scholar Pacific Historical Review (2000) 69 (2): 193–215. https://doi.org/10.2307/3641438 View

Abstract Ranchettes are low-density, rural parcels typically from thirty-five to seventy acres that have proliferated across the Rocky Mountain West. They consume large amounts of land and increase fragmentation, leading to potentially negative impacts on the ecology and cultural identity of local p

The “East Muddy Creek Landslide Complex” in Gunnison County, Colorado, USA destroyed Colorado State Highway 133 from 1986 to 1987 and has been investigated over decades during different periods of reactivation. This paper presents a case study of novel landslide activity recognition related to the l

Abstract The traditionally held assumption that photo-dependent processes are the predominant source of H 2 O 2 in natural waters has been recently questioned by an increrasing body of evidence showing the ubiquitiousness of H 2 O 2 in dark water bodies and in groundwater. In this study, we conducte

Climate change is causing species with non-overlapping ranges to come in contact, and a key challenge is to predict the consequences of such species re-shuffling. Experiments on plants have focused largely on novel competitive interactions; other species interactions, such as plant–microbe symbioses

Pollinator-mediated selection is expected to constrain floral color variation within plant populations. Here, we test for patterns of constraint on floral color variation in 38 bee- and/or hummingbird-pollinated plant species from Colorado, United States. We collected reflectance spectra for at leas

Recent emphasis and requirements for open data publication have led to significant increases in data availability in the Earth sciences, which is critical to long-tail data integration. Currently, data are often published in a repository with an identifier and citation, similar to those for papers.

Feeding in the Perlodidae and Chloroperlidae may, therefore, be important for survival and possibly for the final stages of egg development in the population dynarnics of aquatic insects.

Premise of the StudyOrganisms engage in multiple species interactions simultaneously. While pollination studies generally focus on plants and pollinators exclusively, secondary robbing, a behavior that requires other species (primary robbers) to first create access holes in corollas, is common. It h

Transboundary water institutions in the Indus River Basin can be fairly characterized as broken in key respects. International relations between India and Pakistan over the Indus Waters Treaty, as well as interprovincial relations within Pakistan over the 1991 Water Accord, speak to this sentiment.

Wintertime supercooled liquid water (SLW) observations have been made over the Grand Mesa of Colorado from early 1983 through March 1985. Measurements were made with aircraft, microwave radiometers, and tower-mounted icing meters. Results of analyses of this large data set are summarized. It was fou

Abstract Nine serologic types of Clostridium tetani have been differentiated by means of the agglutination reaction as a result of the studies of Tulloch (1), Bauer (2), Fildes (3), Bauer and Meyer (4), Coleman and Meyer (5) and Coleman and Gunnison (6). As Felix and Robertson (7) have pointed out,

Water supply in the Colorado River could drop so far in the next decade that the ability of the Upper Colorado River Basin states – Colorado, Utah, Wyoming, and New Mexico – to meet their legal obligations to downstream users in Nevada, Arizona, California, and Mexico would be in grave jeopardy. Leg

The Colorado pikeminnow (Ptychocheilus lucius) is a federally endangered fish, which was once abundant and widespread in the Colorado River basin. During exotic fish removal sampling in the spring of 2003, 2004, and 2005, 2 Colorado pikeminnow were collected upstream of critical habitat in the Yampa

Ever since Yuma points were recognized as being particularly ancient, Yuma County, Colorado has been a logical area of interest. Nevertheless, until 1941 the county had received scant attention from professional archaeologists, with the sole exception of a partial surface survey by Dr. E. B. Renaud.