Abstract Ecotourism provides an opportunity to experience nature that may promote its conservation. Ecotourists photograph wildlife, and photography plays an important role in focusing public's attention on nature. Although photography is believed to be a low‐impact activity, how the visual stimulus

It is indicated that accurate predictive models of forb and shrub biomass can frequently be easily obtained using simple linear regression and cover or volume data.

The Southern Rocky Mountain volcanic fi eld contains widespread andesite and dacitic lavas erupted from central volcanoes; associated with these are ~26 regional ignimbrites (each 150–5000 km3) emplaced from 37 to 23 Ma, source calderas as much as 75 km across, and subvolcanic plutons. Exposed pluto

SUMMARY. A total of 60 robins, nearly equally divided among eastern and western species (Turdus migratorius migratorius and T. m. propinquus respectively), and also almost evenly divided between juvenile and adult birds, has been studied for the relative incidence of blood parasites. Malaria of four

A spatially-distributed snow energy and mass balance model, updated with all available snowpack observations, is used to assess the potential for water augmentation by winter orographic cloud seeding in the Colorado River Basin. The modeling system outputs snow water equivalent (SWE) on a 1 km grid

The theme of the 2004 GSA Annual Meeting and Exposition, "Geoscience in a Changing World," covers both new and traditional areas of the earth sciences. The Front Range of the Rocky Mountains and the High Plains preserve an outstanding record of geological processes from Precambrian through Quaternar

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 (

In group-living species, reproductive variation among individuals of the same sex is widespread. By identifying the mechanisms underlying this reproductive skew, we gain fundamental insights into the evolution and maintenance of sociality. A common mechanism, social control, is typically studied by

This dissertation focuses on the kinematic evolution of contractional tectonics: the Himalayan fold-thrust belt along the collisional orogenic belts, and growth of the basement-cored monoclines in Colorado Plateau. Ongoing Himalayan growth is generally thought to be dominated by duplexing and/or ext

Functional trait diversity determines if ecosystem processes are sensitive to shifts in species abundances or composition. For example, trait variation suggests detritivores process detritus at different rates and make different contributions to whole- assemblage processing, which could be sensitive

Crop ScienceVolume 45, Issue 1 cropsci2005.0413 p. 413-413 Registrations Of Cultivars Registration of ‘Grand Mesa’ Pinto Bean M.A. Brick, Corresponding Author M.A. Brick mbrick@lamar.colostate.edu Dep. of Soil and Crop Sciences, Colorado State Univ., Ft. Collins, CO, 80523Corresponding author (mbric

Scent marking and piloerection behavior in social groups of the common marmoset Callithrixj.

Yellow-bellied marmots, Marmota flaviventer , are facultatively social and may form multigenerational societies, which are characterized by individuals sharing and defending space, possessing the ability to distinguish group members from outsiders and potentially persisting for many generations. I r

As climate change accelerates, low summer stream flows are becoming increasingly common in the Colorado Rocky Mountains, USA. The diatom Didymosphenia geminata (Lyngb.) M. Schmidt, typically observed under low-flow and low-P conditions, produces nuisance growth—persistent and extensive proliferation

Although we found some evidence for the effect of a biotic interaction depending on abiotic conditions, it was only for one aspect of reproduction in one species, and it was in an unexpected direction. Our work highlights interactions between the abiotic and biotic components of the environment as a