2,570 results — type: Journal Article
Nests of Preble's Meadow Jumping Mouse (Zapus hudsonius preblei) in Douglas County, Colorado
Why don't more hummingbird-pollinated flowers have dark-colored pollen?
This note derives from work done during an NSF predoctoral fellowship at the University of California, Santa Barbara (UCSB).
Single-Well Push–Pull Tracer Test Analyses to Determine Aquifer Reactive Transport Parameters at a Former Uranium Mill Site (Grand Junction, Colorado)
At a former uranium mill site where tailings have been removed, prior work has determined several potential ongoing secondary uranium sources. These include locations with uranium sorbed to organic carbon, uranium in the unsaturated zone, and uranium associated with the presence of gypsum. To better
PENGARUH EKUITAS MEREK TERHADAP MINAT BELI ULANG PADA KEDAI KOPI BLACK CANYON MALL JAMTOS
Penelitian ini bertujuan untuk mengetahui Pengaruh Ekuitas Merek Terhadap Minat Beli Ulang Pada Kedai Kopi Black Canyon Mall Jamtos Penelitian ini dilaksanakan di Pada Kedai Kopi Black Canyon Mall Jamtos . Model penelitian yang digunakan yakni dengan metode observasi, wawancara, kuesioner dan studi
Historical fire regimes and contemporary fire effects within sagebrush habitats of Gunnison Sage‐grouse
AbstractThe historical role of fire in sagebrush (Artemisia tridentata) landscapes remains poorly understood, yet is important to inform management and conservation of obligate species such as the threatened Gunnison Sage‐grouse (GUSG; Centrocercus minimus). We reconstructed fire histories from tree
Paragenesis and structure of pitchblende-bearing veins, Central City District, Gilpin County, Colorado
Report discussing a study on the Central City district and adjoining mining areas to determine the geology and economic importance of the uranium occurrences in the region.
Controls from above and below: Snow, soil, and steepness drive diverging trends of subsurface water and streamflow dynamics
Maternal survival costs in an asocial mammal
Maternal characteristics, social dynamics, and environmental factors can all influence reproduction and survival and shape trade-offs that might arise between these components of fitness. Short-lived mammals like the golden-mantled ground squirrel (GMGS; Callospermophilus lateralis ) tend to maximiz
Species of Sclerotinia from Grand Mesa National Forest, Colorado
This paper consists of some of the results of a collecting trip made by the senior author to the Grand Mesa National Forest, Colorado, during the period of June 12 to July 20, 1930. Al? though the fungi here discussed represent only a small percentage of the total number of collections, it seems tha
Salt Pickup from Agricultural Lands in the Grand Valley of Colorado
AbstractIntroduction of seepage and deep percolation losses to the saline soils and aquifers, and the eventual return of these flows to the river system with their large salt loads, make the Grand Valley in Colorado one of the more significant salinity sources in the Upper Colorado River Basin. A st
Survival of Gunnison sage‐grouse <i>Centrocercus minimus</i> in Colorado, USA
Gunnison sage‐grouse Centrocercus minimus has declined from their historic range and recent monitoring has provided evidence that some populations are continuing to decline. The evaluation of long‐term, population‐specific survival rates is important to assess population stability, and is necessary
Hydrological control of rock carbon fluxes from shale weathering
Shale bedrocks hold Earth’s largest carbon inventory. Although water is recognized for cycling elements through terrestrial environments, understanding how hydrology controls ancient rock carbon (Crock) release is limited. Here we measured depth- and season-dependent subsurface water fluxes and pore
On ptilolite, a new mineral [from Jefferson County, Colorado]
Patterns of genetic variation and local adaptation of a native herbivore to a lethal invasive plant
Understanding the evolutionary processes that influence fitness is critical to pre- dicting species' responses to selection. Interactions among evolutionary processes including gene flow, drift and the strength of selection can lead to either local adap- tation or maladaptation, especially in hetero
Downscaled hyper-resolution (400 m) gridded datasets of daily precipitation and temperature (2008-2019) for East Taylor subbasin (western United States)
Abstract. High resolution gridded datasets of meteorological variables are needed in order to resolve fine-scale hydrological gradients in complex mountainous terrain. Across the United States, the highest available spatial resolution of gridded datasets of daily meteorological records is approximat
Multilevel selection on individual and group social behaviour in the wild
How phenotypes are shaped by multilevel selection-the theoretical framework proposing natural selection occurs at more than one level of biological organization-is a classic debate in biology. Though social behaviours are a common theoretical example for multilevel selection, it is unknown if and ho
A tale of two catchments: causality analysis and isotope systematics reveal mountainous watershed traits that regulate the retention and release of nitrogen
Abstract Mountainous watersheds are characterized by variability in functional traits, including vegetation, topography, geology, and geomorphology, which determine nitrogen (N) retention, and release. Coal Creek and East River are two contrasting catchments within the Upper Colorado River Basin tha
Cold-season precipitation sensitivity to microphysical parameterizations: hydrologic evaluations leveraging snow lidar datasets
Abstract Cloud microphysical processes are an important facet of atmospheric modeling, as they can control the initiation and rates of snowfall. Thus, parameterizations of these processes have important implications for modeling seasonal snow accumulation. We conduct experiments with the Weather Res
Context dependence of warming induced shifts in montane soil microbial functions
Abstract High elevation and latitude ecosystems are experiencing high levels of anthropogenic atmospheric warming. Climate warming may directly change soil microbial activity and alter ecosystem carbon dynamics and productivity, but increasing evidence suggests these responses may depend on other bi
Linking microenvironment modification to species interactions and demography in an alpine plant community
Individual plants can modify the microenvironment within their spatial neighborhood. However, the consequences of microenvironment modification for demography and species interactions remain unclear at the community scale. In a study of co‐occurring alpine plants, we 1) determined the extent of spec
