354 results — type: Thesis ·
States and transitions in aspen dominated ecosystems in western Colorado
In Colorado and the southwestern United States, quaking aspen (Populus tremuloides Michx.) is a species of high ecological, economic, and aesthetic importance. In response to the interests of several landowners and land managers in my study sites, this thesis describes my efforts to identify differe
An analysis of whirling disease risk in Western Montana
Myxobolus cerebralis, the causative agent of whirling disease, has been a major contributor to the loss of young trout in numerous streams within the Intermountain West (Colorado, Idaho, Montana, Utah, Wyoming). Currently there are no effective management procedures for mitigating the effects of thi
Dimensions of difference: Multi-scale consequences of trait variation in bumble bees
Body size is arguably one of the most important traits influencing the physiology and ecology of animals. Shifts in animal body size have been observed in response to climate change, including in bumble bees (Bombus spp.). Bumble bee size shifts have occurred concurrently with the precipitous popula
The biosystematics of the Lupinus argenteus complex and allies
"Introduction: For many years there has been great confusion in the nomenclature of Lupinus. Many authors have contributed numerous names as they interpreted the morphological variations. Since the work of Sereno Watson (1873) there has not been an attempt to make a monographic study of the perennia
Dye Tracing and the Effects of Infrastructure in Hidden River Cave, Horse Cave, KY
Hidden River Cave is a stream cave system found in Horse Cave, KY with continuous water flow of its two branches, Wheet River and East River. The infrastructure of the city of Hose Cave, KY was originally designed to utilize natural sinkholes for drainage of all wastewaters. The city uses many of th
The Sequence Stratigraphy of the Chinle Formation in the Dinosaur National Monument Region, Utah and Colorado, USA
A Thesis submitted to the faculty of the Graduate School of the University of Minnesota by Ryan Eric Erickson in partial fulfillment of the requirements for the degree of Master of Science, October 2007.
Water resource development in the Arkansas Valley
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 .
Remote sensing strategies for surface mineral and contaminant detection
A strategy for predicting watershed acidification
Dissecting phenotypic variation in the montane forb, Boechera stricta
Depositional setting and reservoir-scale architecture of sandstone bodies of the Green River Formation in Evacuation Creek, Dragon Quadrangle, eastern Uinta basin, Utah
The Green River Formation is an Eocene lacustrine deposit that is present in several Rocky Mountain basins.In the Uinta basin, the Green River Formation has produced large amounts of oil and gas from many fields, the largest being the Greater Altamont-Bluebell field in the northern margin of the bas
Genetic mechanisms underlying maladaptation in specialized species interactions
Adaptation has been used as the framework to understand the power of
Alpine vegetation and soils of Mesa Seco Plateau, San Juan Mountains, Colorado
Behavioral and environmental factors in the spatial distribution and population dynamics of a yellow-bellied marmot population
Investigating the influences of climate on the high elevation snowpack hydrology in the upper Colorado region.
A change in climate in the western United States has already affected and will continue to affect the onset of snow melt in many parts of the country. The effect of climate change on snow water equivalent, snowmelt runoff and total streamflow with respect to their elevation distribution is examined
Site development for Big Meadow Lake, Mineral County, Colorado
Mean monthly maximum temperature (F.
Competition for pollination and the evolution of flowering time
Reconnaissance geology of the Mississippian Leadville limestone and implications for mineralization controls, Fulford mining district, Eagle County, Colorado
Deserving of much appreciation are Russell K. Murphy, who assisted in navigating the rugged field terrain, and the E. C. Lorig family of Eagle, Colorado, whose friendship, generosity, and guidance were extremely valuable
Community assembly and food web interactions across pond permanence gradients
Optimal reproductive strategy in yellow-bellied marmots: Unveiling the consequences of age at first reproduction on survival and lifetime reproductive success
When to reproduce for the first time is a key question in evolutionary ecology.