7,660 results
Pollinator visitation rate and effectiveness vary with flowering phenology
Premise of the Study – Flowering time may influence pollination success and seed set through a variety of mechanisms, including seasonal changes in total pollinator visitation or the composition and effectiveness of pollinator visitors. Methods – We investigated mechanisms by which changes in flower
Bee phenology is predicted by climatic variation and functional traits
Climate change is shifting the environmental cues that determine the phenology of interacting species. Plant-pollinator systems may be susceptible to temporal mismatch if bees and flowering plants differ in their phenological responses to warming temperatures. While the cues that trigger flowering a
The effect of demographic correlations on the stochastic population dynamics of perennial plants
Understanding the influence of environmental variability on population dynamics is a fundamental goal of ecology. Theory suggests that, for populations in variable environments, temporal correlations between demographic vital rates (e.g., growth, survival, reproduction) can increase (if positive) or
Phenological responses to multiple environmental drivers under climate change: insights from a long-term observational study and a manipulative field experiment
Climate change has induced pronounced shifts in the reproductive phenology of plants, yet we know little about which environmental factors contribute to interspecific variation in responses and their effects on fitness. We integrate data from a 43-year record of first flowering for six species in su
The Cliff-Hanger Pocket, the Amphitheater, Ouray County, Colorado
Collecting Microminerals in Leadville, Lake County, Colorado
(2006). Collecting Microminerals in Leadville, Lake County, Colorado. Rocks & Minerals: Vol. 81, No. 5, pp. 383-387.
Covellite: Summitville, Rio Grande County, Colorado
COMBINED SEWER ELIMINATION PROJECT GRAND JUNCTION, COLORADO
COMBINED SEWER ELIMINATION PROJECT GRAND JUNCTION, COLORADOThere is a section of the town of Grand Junction, Colorado over five square miles in area where acombined sanitary and storm sewer system existed. The system had significant capacity constraintsduring storm events that resulted in problems w
(308) The Mesa County Colorado Irrigation Audit Program
Seven and one-half square miles, or 4864 acres, of the Grand Valley in Western Colorado consists of high water-using landscapes. Overirrigation of Grand Valley soils flushes 580,000 tons of salt into the Colorado River each year. These salts negatively impact plant and animal health throughout the C
Gunnison Sage-Grouse Use of Conservation Reserve Program Fields in Utah and Response to Emergency Grazing: A Preliminary Evaluation
Little information is available on the use of areas enrolled in the Conservation Reserve Program (CRP) by Gunnison sage-grouse (Centrocercus minimus) or the impacts of grazing on their habitat selection and movement patterns. Using radiotelemetry, we monitored 13 Gunnison sage-grouse in San Juan Cou
The Reserved Rights Doctrine: Case Study Involving Black Canyon of the Gunnison National Park
Supreme Court has developed a legal doctrine -the "
A multimodel ensemble forecast framework: Application to spring seasonal flows in the Gunnison River Basin
We propose a multimodel ensemble forecast framework for streamflow forecasts at multiple locations that incorporates large‐scale climate information. It has four broad steps: (1) Principal component analysis is performed on the spatial streamflows to identify the dominant modes of variability. (2) P
Potential Water Augmentation from Cloud Seeding in the Colorado River Basin
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
COLORADO PIKEMINNOW (PTYCHOCHEILUS LUCIUS) UPSTREAM OF CRITICAL HABITAT IN THE YAMPA RIVER, COLORADO
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
Three Proterozoic Orogenic Episodes and an Intervening Exhumation Event in the Black Canyon of the Gunnison Region, Colorado
U/Pb zircon/titanite geochronology, in situ monazite geochronology, and 40Ar/39Ar thermochronology provide an unusually complete data set for reconstructing the tectonic history of Proterozoic rocks exposed in the Black Canyon, Gunnison, Colorado. These new geochronologic data record three protracte
Research Article: A study of Bromus tectorum L. seed germination in the Gunnison Basin, Colorado
Bromus tectorum L. (Cheatgrass, Downy brome) is an invasive grass that has recently proliferated within the Gunnison Basin, Colorado. This study examined variation in germination in response to temperature, storage duration, and habitat. Four populations within the Gunnison Basin were sampled. Seeds
Guidelines for Controlling Beavers and Preventing Roadway Damage
_ }Guidelines for Controlling Beavers and Preventing Roadway Damage Page | of 5 April 1, 1998 Road Management & TranSafty ne 1-800-777-233 i P (U.S. and Canada) Engineering Journal os alee Copyright © 1998 by TranSafety, Inc. Fax: (360) 683- : 6719 info@usroads.com Journals About Us} Links il Email
Comment on Travel Management Plan
Ralph E Clark. November 28, 1998.
Colorado Source Water Assessment & Protection Swap
Water Quality Control Division Colorado Department of Public Health & Environment. October 1, 1998.
Colorado River Flow At Lee Ferry, Arizona
Colorado River flow charts from Lee Ferry, AZ October 22nd 1998
