2,570 results — type: Journal Article
Additions to the flora of Colorado. II
Red-naped sapsuckers feeding at willows: possible keystone herbivores
Colorado Potato Beetle Control with Biological and Synthetic Insecticides, Pasquotank County, 1989
Abstract Su perior' potatoes were planted near Weeksville, N.C. Single row plots, 6 . 1 B long with rows 1.06 m apart were replicated 4 times in a randomized complete block design. Treatments were applied using a COa pressurized sprayer with a single hollow cone nozzle (18 X) operating at 60 psi to
Heart rates of free-ranging yellow-bellied marmots
Colorado Potato Beetle Control, Johnston County, 1988
Abstract 'Atlantic' potatoes were planted 14 Apr, near Benson, NC. Single row plots, 10 ft long on 42 inch centers were replicated 4 times in a randomized complete block design. Alleys of 5 ft separated replicates. Treatments were applied using a CO2 pressurized sprayer with a single hollow cone noz
The Ohio Mine, Ouray County, Colorado: A Famous Quartz Locality Revisited
Coevolution of pierid butterflies and their cruciferous foodplants. I. The relative quality of available resources
Reproductive strategies of female butterflies
Folsom Point Diggings: The Johnson Site in the Foothills of Larimer County, Colorado
The Johnson site is a Folsom occupation in Larimer County, Colorado. T. Russell Johnson discovered the site in 1935, which led to excavations by the Colorado Museum of Natural History in 1936 and later work in 1960 by the University of Wyoming. Little is known of the site due to limited reporting of
The Colorado River: Chasing Water
An Unusual Glacial Event in the Comanch Peak Wilderness Area, Larimer County, Colorado
Late Pinedale till deposits mapped in various stream valleys in the Comanche Peak Wilderness Area, north of Rocky Mountain National Park, indicate that Browns Creek Valley was glaciated from two directions simultaneously while the middle of the valley remained unglaciated. Till deposits at the upper
Climatic variation and risk assessment in a highly seasonal mammal
Climate change and its resulting effects on seasonality are known to alter a variety of animal behaviors including those related to foraging, phe- nology, and migration. Although many studies focus on the impacts of phenological changes on physiology or fitness enhancing behaviors, fewer have invest
Spatial genetic structure of <i>Delphinium nuttallianum</i> populations: inferences about gene flow
Thermoregulation and water requirements in semiarid and montane populations of the least chipmunk, Eutamias minimus. II. Water balance
AN EX POST ANALYSIS OF THE UNCOMPAHGRE PROJECT<sup>1</sup>
ABSTRACT: The national and regional economic impact of the Bureau of Reclamation's Uncompahgre Project which was authorized in 1903 is assessed. Benefit‐cost ratios for the project are calculated for a range of production cost estimates and discount rates. An economic base approach is used to estima
Nectar Robbing in <i>Ipomopsis aggregata</i>: Effects on Pollinator Behavior and Plant Fitness
Time of superposition of the Arkansas River, Chaffee County, Colorado
Threemile Creek, a tributary to Colorado's upper Arkansas River, underwent two episodes of stream piracy during the Pleistocene. Recognition of the abandoned stream segments and determination of the time when each stream capture took place, permits determination of the position of the Arkansas River