Long-term soil CO2 emission measurements are necessary for detecting trends and interannual variability in the terrestrial carbon cycle. Such records are becoming increasingly valuable as ecosystems experience altered environmental conditions associated with climate change. From 2013 to 2021, we con

The skeletal remains of an adult male individual from the 5JF52 site was analyzed to the extent allowed by the condition of the bony skeleton. The analysis includes a description of the material, dentition, demographic information pertinent to age, sex, stature and race, and a complete analysis of m

Violarite from the Copper King mine, Boulder County, Colo., occurs as a secondary mineral after pentlandite. It is associated with fresh pyrrhotite and with several altered forms of pyrrhotite including secondary pyrite after pyrrhotite. Hence violarite has a much broader stability range in the oxid

The effect of altitude on the distribution of insects has not been widely studied, and except for isolated observations, no work has been done on the vertical distribution of the ground beetles (Carabidae). It is the purpose of this thesis to show the distribution of the Carabidae throughout the alt

Abstract The Wilson Creek field is situated in mountainous terrain of Rio Blanco County, Colo. It was discovered in early 1938 and produces from both the Morrison and Sundance sands of Jurassic age. The underlying Sundance reservoir is fully developed with 18 wells; no dry holes have been drilled. T

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

In the absence of incontrovertible performance data in support of, or opposition to, school vouchers, court decisions on their legality become increasingly important. Analysis of legal challenges provides a rich opportunity for scholars and policymakers to follow arguments for or against their posit

rests directly, but unconformably, upon the Bridger or the Uinta, and all earlier formations in the region northeast and east of the Uinta and Blue Mountains of Utah and Colorado. The formation consists of finer and coarser

A survey of granitic rock surfaces, talus and outcrops, at 25 sites in Rocky Mountain National Park yielded 81 saxicolous lichen species. Fifteen species in 11 genera, or 19% of the total species, were dominant. Observed only once were 31% or 25 species. No new species were reported. Our results sho

ABSTRACT: Tertiary rocks more than 5,000 feet thick outcrop in central South Park, Colorado; they include continental sediments and volcanics. These rocks have been previously divided into several formations, from youngest to oldest: Denver Formation (Eocene), and lower andesite of the Thirtynine Mi

Understanding the factors controlling the relative abundance, distribution, and diversity of organisms is a fundamental challenge in ecology. For plants and animals, macroecological rules have been developed that describe these large-scale distributional patterns and attempt to explain the underlyin

Journal Article Gray Bull Mammals from the Knight Formation in Moffat County, Colorado Get access Malcolm C. McKenna Malcolm C. McKenna Department of Paleontology, University of California, Berkeley Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume

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

It is unclear how environmental change influences standing genetic variation in wild populations. Here, we characterised envi- ronmental conditions that protect versus erode polymorphic chemical defences in Boechera stricta (Brassicaceae), a short-­lived perennial wildflower. By manipulating drought

on uplands. Torreya 14: 167-194. 1914; IV. Bull. Torrey Bot. Club 42: 169-217. 1915; V. Plant societies along rivers and streams. Bull. Torrey Bot. Club 43: 235-264. 1916; VI. The plant associations of eroding areas along the seacoast. Bull. Torrey Bot. Club 47: 80-117. 1920; VII. The plant associat

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

A recent article in American Antiquity entitled “Symposium on River Valley Archaeology” summarizes the present status of one of our most important and urgent problems in American archaeology today. Additional information concerning this subject, particularly with reference to the progress made in th