The Niobrara Formation of the Denver Basin is an unconventional oil and gas drilling target composed of alternating chalk and marl units.These units act as the source, seal and trap for hydrocarbons generated in the organic rich marl beds of the Niobrara.Organic geochemical data, such as oil-to-sour

Upper Triassic continental ëtrata of the Chinle Formation, in the Nacimiento Mountains, New Mexico, represent two cycles of fluvial to fluvial-deltaic to marshland-lacustrine sedimentation. Each cycle was initiated by uplift in the southern Ancestral Rocky Mountains and deposited on the local palaeo

Gabbroic dyke and syenitic plug intrusives have been sampled and studied across Huerfano Butte. Petrography and geochemical analyses were performed on selected specimens; from these analyses chemical variation diagrams have been prepared. Crystal Size Distribution analyses have been done on magnetit

Mountain resort tourism, in particular ski tourism, has brought about significant change to many alpine communities within North America. Providing an alternative to past industries such as ranching, agriculture, mining, and logging, tourism has been heralded by some as a panacea for the revitalisat

Tree swallow (Tachycineta bicolor) nestlings, eggs, and diet and sediment grab samples were used to quantify risks of exposure to15 trace elements, 31 polychlorinated biphenyl (PCB) congeners, 15 polybrominated diphenyl ether (PBDE) congeners and 13 organochlorine pesticides in the Calumet area of n

Exploding growth along the Colorado Front Range has expanded the wildland-urban interface-the area where homes and vegetation mix.This area, known as the WUI, is at high risk of wildfires.Wildfire risk is based on both natural conditions, such as invasive species and climate change, and human develo

One of the major contributing factors affecting wilderness resources is camping.The objectives of this study were to describe the resource changes that occur in backcountry campsites in Rocky Mountain National Park as measured by campsite area and campsite score from the Backcountry Campsite Impact

Jessica Keppel Higgins: RAPID EVOLUTION AND POPULATION DIVERGENCE IN RESPONSE TO ENVIRONMENTAL CHANGE IN COLIAS BUTTERLIES (Under the direction of Joel Kingsolver)

Phylogenetic diversity is an axis of biodiversity that captures the variation in evolutionary relationships present in a community, and is associated with important ecosystem functions. Interestingly, recent work has shown that phylogenetic diversity is often decoupled from other biodiversity metric

When to reproduce for the first time is a key question in evolutionary ecology.

o c i e t y ^" P o rk L overs Are No C r e d it to Our D em ocracy," Life, LV (S ep te m b er 6 , 1 9 6 3 ), I4., * Ib id .

Biotic and Abiotic Drivers of Plant-Pollinator Interaction Rewiring

In recent years, large petroleum discoveries within the lacustrine microbialite facies of pre-salt systems of offshore Brazil, Angola, and Gabon have increased interest in the potential of microbial carbonates as reservoir rocks. Whereas a multitude of studies have been conducted on microbialites an