1,923 results — topic: RMBL & Gothic
The Surface Atmosphere Integrated Field Laboratory (SAIL) Campaign
Abstract The science of mountainous hydrology spans the atmosphere through the bedrock and inherently crosses physical and disciplinary boundaries: land–atmosphere interactions in complex terrain enhance clouds and precipitation, while watersheds retain and release water over a large range of spatia
Notes on the Ecology of Weasels in Gunnison County, Colorado
Journal Article Notes on the Ecology of Weasels in Gunnison County, Colorado Get access Horace F. Quick Horace F. Quick Univ. of Maine, Orono, Maine Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 32, Issue 3, August 1951, Pages 281–290, https://
The effects of kidney structure and the annual cycle on water requirements in golden-mantled ground squirrels and chipmunks
Minimum water requirements of non-torpid golden-mantled ground squirrels and chipmunks and Eutamias change throughout the annual cycle from a high in the reproductive season to a low in the hibernating season.
When do hummingbirds use torpor in nature?
The physiology of torpor in hummingbirds is well known from laboratory studies, but we still do not know when or how often this means of energy conservation is used in nature, whether regularly (the "routine" hypothesis) or only in response to inadequate food intake (the "emergency-only" hypothesis)
Resource allocation to oocytes: heritable variation with altitude in Colias philodice eriphyle (Lepidoptera)
This study tests the hypothesis that selection should result in a positive correlation between numbers of oocytes produced and available oviposition time, in order to avoid wasting nutrients through the formation of unused oocytes in Colias philodice eriphyle Edwards.
Patterns of color and nectar variation across an <i>Ipomopsis</i> (Polemoniaceae) hybrid zone
Hybridization may uncouple adaptive trait combinations that are present in parental species. I studied variation in flower color and reward quality across a hybrid zone of Ipomopsis aggregata and I. tenuituba. Individuals from hybrid populations showed considerable variation in flower color using co
Distribution and species diversity of trichomycete gut fungi in aquatic insect larvae in two Rocky Mountain streams
At least 20 species of Trichomycetes (Zygomycotina) were dissected from the hindguts and peritrophic membranes of larval Diptera (Simuliidae, Chironomidae), Ephemeroptera, and Plecoptera in two high-altitude streams, and the trichomycete species diversity in the two streams was compared. Periodic sa
Exploration and geology of the Mt. Emmons molybdenite deposits, Gunnison County, Colorado
During the period 1970 to 1976, three stockwork molybdenite deposits were discovered beneath Mt. Emmons, a prominent peak of the Elk Mountains in the central portion of the Colorado mineral belt. Two of the deposits are below Redwell Basin on the northwestern side of the mountain and the third, and
Impact of intra-meander hyporheic flow on nitrogen cycling
Redox gradients within hyporheic zones significantly impact the biogeochemical cycling of carbon and nitrogen. To investigate the effect of these redox gradients on nitrogen transformation in the subsurface, we integrated a genome-informed complex reaction network into PFLOTRAN, which is an open sou
Improving our chemistry: Challenges and opportunities in the interdisciplinary study of floral volatiles
Here we review next-generation questions in the study of plant–pollinator interactions mediated by floral volatiles, and the potential for renewed collaboration between biologists and chemists in answering such questions.
Population structure and recommendations for conservation of the narrowly endemic alpine butterfly Boloria acrocnema (Lepidoptera: Nymphalidae)
Mark-recapture data indicate that daily population sizes are low, most adults remain in residence at the colony only a few days, and there are age-specific sexual differences in movement, with older females perhaps leaving the colony site.
Porewater Lead Concentrations Limited by Particulate Organic Matter Coupled With Ephemeral Iron(III) and Sulfide Phases during Redox Cycles Within Contaminated Floodplain Soils
Lead contamination in soils and sediments is a major threat to water quality. In surface and near-surface environments, Pb is not redox active; however, common Pb hosts, including Fe(III)-(hydr)oxides and sulfides, dissolve and precipitate as redox conditions change. Dissolution of Pb hosts may rele
Improving predictions of stream CO2 concentrations and fluxes using a stream network model: A case study in the East River watershed, CO, USA
Abstract Inland waters are an important component of the global carbon budget. However, our ability to predict carbon fluxes from stream systems remains uncertain, as p CO 2 varies within streams at scales of 1–100 m. This makes direct monitoring of large‐scale CO 2 fluxes impractical. We incorporat
Reactive iron, not fungal community, drives organic carbon oxidation potential in floodplain soils
Wetlands host ∼20% of terrestrial organic carbon and serve as a major sink for atmospheric carbon. Anoxic soils and sediments accrue soil organic carbon (SOC) partly by hampering the activity of extracellular oxidative enzymes that break down phenolic polymers. Upon aeration, fungal-driven oxidative
Dispersal of Erythronium grandiflorum pollen by bumblebees: implications for gene flow and reproductive success
Review of Vesicular Stomatitis in the United States with Focus on 2019 and 2020 Outbreaks
Vesicular stomatitis (VS) is a vector-borne livestock disease caused by vesicular stomatitis New Jersey virus (VSNJV) or vesicular stomatitis Indiana virus (VSIV). The disease circulates endemically in northern South America, Central America, and Mexico and only occasionally causes outbreaks in the
A trade-off between the frequency and duration of bumblebee visits to flowers
The potential for a trade-offs between these two components of pollinator service exists when visit duration depends on reward quantity; whether the trade-off is realized will depend on variation in nectar production and on whether pollinators forage systematically.
A preliminary list of the Hemiptera of Colorado
of new species here presented, although large, must be small compared with the forms yet unknown.
High-Resolution Snow-Covered Area Mapping in Forested Mountain Ecosystems Using PlanetScope Imagery
Improving high-resolution (meter-scale) mapping of snow-covered areas in complex and forested terrains is critical to understanding the responses of species and water systems to climate change. Commercial high-resolution imagery from Planet Labs, Inc. (Planet, San Francisco, CA, USA) can be used in
Altered precipitation affects plant hybrids differently than their parental species
• Premise of the study: Future changes in environmental conditions may alter evolutionary processes, including hybridization in nature. Frequency of hybrids could be altered via range shifts by the parental species or by changes in prezygotic or postzygotic reproductive isolation. We examined the po
