2,570 results — type: Journal Article
Improving plant DNA metabarcoding accuracy with ecological filters and Angiosperms353: Field and pollen microscopy validation
Intraspecific body size variation across distributional moments reveals trait filtering processes
Natural populations are composed of individuals that vary in their morphological traits, timing and interactions. The distribution of a trait can be described by several dimensions, or mathematical moments-mean, variance, skew and kurtosis. Shifts in the distribution of a trait across these moments
The Grand Canon of the Colorado
Records and descriptions of North American craneflies (Diptera). III. Tipuloidea of the upper Gunnison Valley, Colorado
In the present report are discussed the partial results of extensive collections of Tipuloidea that were taken in the vicinity of Gothic, Gunnison Co., Colorado, in 1934, chiefly by Mrs. Alexander and the writer. It is hoped that we will be able to make a detailed survey of the crane-flies of the en
Differences in individual flowering time change pollen limitation and seed set in three montane wildflowers
Our study shows that variation in individual phenology affects fecundity in three phenologically distinct montane species, and that pollen limitation may be more influential than conspecific density. Our results suggest that individual-level changes in phenology are important to consider for underst
A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs
A right theropod pedal ungual phalanx II-3 from the Campanian Williams Fork Formation of northwestern Colorado is described, and a combination of features, including the large size, tapering distal tip, robust and stout overall form, triangular cross-section, and a relatively flat ventral surface al
Intraspecific body size variation across distributional moments reveals trait filtering processes
Natural populations are composed of individuals that vary in their morphological traits, timing and interactions. The distribution of a trait can be described by several dimensions, or mathematical moments-mean, variance, skew and kurtosis. Shifts in the distribution of a trait across these moments
Rare species do not disproportionately contribute to phylogenetic diversity in a subalpine plant community
We found that rare species, whether at low abundance or with a small range, do not disproportionately contribute to phylogenetic diversity in our subalpine plant community. These results were consistent across elevations. Instead, rare species might provide phylogenetic redundancy with common specie
<i> Firmicutes </i> and <i> Bacteroidetes </i> explain mass gain variation in an obligate hibernator
Abstract Body condition is an important life history challenge that directly impacts individual fitness and is particularly important for hibernating animals, whose maintenance of adequate body fat and mass is essential for survival. It is well documented that symbiotic microorganisms play a vital r
Advanced phenology of intraguild predators shifts herbivore host plant preference and performance
1. The abundance of insect herbivores is mediated by interactions with higher and lower trophic levels. This research asks (i) how phenological change across trophic levels affects host plant quality and selection for aphids, and (ii) what higher trophic level mechanisms drive aphid abundance. 2. Li
Mineralogy of a Calc-Silicate Locality near: Genesee Park, Jefferson County, Colorado
Quality of food source affects female visitation and display rates of male Broad-tailed Hummingbirds
Abstract I studied the relationships among energy availability, female visitation rates, and male display rates in Broad-tailed Hummingbirds (Selasphorus platycercus). Feeders contained 10%, 20%, or 30% sucrose solutions; female visitation rates and male hummingbird display rates were measured. Disp
Daily roadkill monitoring and long-term population census reveal female-biased mortality for a small mammal along a wildland-urban interface
Magnetic investigation in the vicinity of Derby, Adams County, Colorado, U.S.A.
Durante el verano y otoño de 1967, se realizaron levantamientos magnéticos de intensidad vertical en dos áreas adyacentes al pozo Rocky Mountain Arsenal Num. 1, localizado al NE de la ciudad de Denver, Condado de Adams, en el Estado de Colorado. Se dio a estos levantamientos el nombre de Arca Manila
NON-ANATECTIC MIGMATITES IN GILPIN COUNTY, COLORADO
Research Article| September 01, 1965 NON-ANATECTIC MIGMATITES IN GILPIN COUNTY, COLORADO PAUL D LOWMAN, JR. PAUL D LOWMAN, JR. NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, GODDARD SPACE FLIGHT CENTER, GREENBELT, MD. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1965) 7
The Coccidae of Boulier County, Colorado
Journal Article The Coccidae of Boulier County, Colorado Get access T. D. A. Cockerell T. D. A. Cockerell Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 3, Issue 5, 1 October 1910, Pages 425–430, https://doi.org/10.1093/jee/3.5.
Geophysical case history; Black Hollow field, Weld County, Colorado
Abstract The Black Hollow field is located in Weld County, Colorado, on the W. flank of the Denver-Cheyenne Basin. The producing reservoir is the Lyons Sandstone of Permian age. Seismic work was begun in the area in 1944, following up gravity leads resulting from a gravity survey done in 1943. A min
Watering the Land: The Colorado River Project
Research Article| October 01 1993 Watering the Land: The Colorado River Project Kevin Starr Kevin Starr Search for other works by this author on: This Site PubMed Google Scholar Southern California Quarterly (1993) 75 (3-4): 303–332. https://doi.org/10.2307/41171683 Views Icon Views Article contents