7,660 results
SnowEx21 Senator Beck Basin and Grand Mesa, CO AVIRIS-NG Surface Spectral Reflectance, Version 1
SnowEx20 Grand Mesa IOP Computed Tomography Snow Microstructure, Version 1
A field-validated ensemble species distribution model of Eriogonum pelinophilum, an endangered subshrub in Colorado, USA
Understanding the suitable habitat of endangered species is crucial for agencies such as the Bureau of Land Management to plan management and conservation. However, few species distribution models are directly validated, potentially limiting their application. In preparation for a Species Status Ass
High Resolution Current and Future Climate SnowModel Simulations in the Upper Colorado River Basin
This data release contains SnowModel snow evolution simulation output on a 100-meter (m) geospatial grid for a 311 kilometer (km) � 300 km model domain in Colorado, United States, encompassing the Colorado and Gunnison River Basin headwaters in the Upper Colorado River Basin. Weather Research and Fo
Progressive sensitivity of trophic levels to warming underlies an elevational gradient in ant–aphid mutualism strength
Although species interactions are often proposed to be stronger at lower latitudes and elevations, few studies have evaluated the mechanisms driving such patterns. In this study, we assessed whether, and by which mechanisms, abiotic changes associated with elevation altered the outcome of an ant–aph
Heterogeneity in Hyporheic Flow, Pore Water Chemistry, and Microbial Community Composition in an Alpine Streambed
AbstractThe hyporheic zone, where surface water and groundwater mix, is an important microbial habitat where biogeochemical reactions influence water quality. We show that spatial variability in hyporheic flow in the East River near Crested Butte, CO, drives heterogeneity in streambed geochemical co
Plant chemical mediation of ant behavior
Ants are ecologically dominant members of terrestrial communities. Ant foraging is often strongly associated with plants and depends upon associative learning of chemicals in the environment. As a result, plant chemicals can affect ant behaviors and, in so doing, have strong multi-trophic indirect e
Elevated temperatures alter an ant aphid mutualism
Sensitivity analysis of hydraulic conductivity and Manning’s n parameters lead to new method to scale effective hydraulic conductivity across model resolutions.
Hydrological modeling is an important tool for research, policy, and management, but uncertainty remains about parameters transferability from field observations made at small scale to models at the catchment scale and larger. This uncertainty compels the need to develop parameter relationships that
Exploring source water mixing and transient residence time distributions of outflow and evapotranspiration with an integrated hydrologic model and Lagrangian particle tracking approach
Abstract Understanding the time water takes as it moves from rain or snowmelt through the terrestrial system to arrive as stream discharge, or evapotranspiration (ET) is an important hydrologic quantity. We develop a Lagrangian particle tracking method to capture transient residence times from sourc
From Grain to Floodplain: Evaluating heterogeneity of floodplain hydrostatigraphy using sedimentology, geophysics, and remote sensing.
AbstractStratigraphy is a fundamental component of floodplain heterogeneity and hydraulic conductivity and connectivity of alluvial aquifers, which affect hydrologic processes such as groundwater flow and hyporheic exchange. Watershed‐scale hydrological models commonly simplify the sedimentology and
Context dependent biotic interactions control plant abundance across altitudinal environmental gradients
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
Soil microbes that may accompany climate warming increase alpine plant production
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
The function of floral orientation in bluebells: interactions with pollinators and rain in two species of <i> Mertensia </i> (Boraginaceae)
Aims Important Findings Pollinators are traditionally considered to be the primary agent of Mertensia brevistyla had a significantly more upright floral orienta- selection on floral traits. However, floral traits may also be under tion than M. fusiformis, and seed set was highest in upright M. bre-
Modeling transient soil moisture limitations on microbial carbon respiration
Abstract Soil microorganisms are known to survive periods of aridity and to recover rapidly after wetting events, with the ability to transition between a dormant state in dry conditions and an active state in wet conditions. Though this dynamic behavior has been previously incorporated into soil ca
Microbial communities across a hillslope-riparian transect shaped by proximity to the stream, groundwater table, and weathered bedrock
Abstract Watersheds are important suppliers of freshwater for human societies. Within mountainous watersheds, microbial communities impact water chemistry and element fluxes as water from precipitation events discharge through soils and underlying weathered rock, yet there is limited information reg
Draft Honorable John R Block Secretary of Agriculture
The High Country Citizens' Alliance, a Colorado non- profit public interest organization located in Crested Butte Colorado has recieved and reviewdyour Record of Decision in regards to the Oh Be Joyful Wilderness Study Area. We wish to offer the following comments and recomendation. In reviewing the
DOE News Gunnison Mill Site Demolition to Begin
Demolition of abandoned mill buildings and other structures at the Gunnison, Colorado, Uranium Mill Tailings Remedial Action (UMTRA) Project site will begin today according to U. S. Department of Energy (DOE) Site Manager Don Leske. "The mill site demolition represents the first phase of site remedi
Diverting water is no answer for anyone
SLV Water to Diverting"' 11 :!Gti water is '"~· no answer for anyo~ne By RANDAL RISTAU CSU Cooperative Extension After spouting off last week about water belonging in its watershed of origin, you might think we would move on to other topics. However, due to some reader responses, let's go after this
District Court Water Division: Application of The USA to Make Absolute A Conditional Water Right in Montrose County, CO
Montrose County Justice Center, Colorado.
