1,559 results — type: Student Paper
Effects of single and terraced beaver ponds on benthic macroinvertebrate communities
Beavers are an important aspect of the landscape and have been increasing in abundance in montane regions of the western U.S. While beaver impoundments have been shown to affect downstream habitats, their influence is variable and may be attributed in part to variation in the morphology of impoundme
Time budget of yellow-bellied marmots at high and low elevations
Time budgets of the yellow-bellied marmot (Marmota flaviventris) were created observing two different localities within the Rocky Mountains of Colorado at different elevations (Cement Creek, 2641m and North Picnic, 2900m). Six behaviors (foraging, sitting/lying, locomotion (moving from place to plac
Effects of elevation on salamander life strategies
The Arizona Tiger Salamander (Ambystoma mavortium nebulosa) is a keystone species in the Rocky Mountains. Depending on how well they grow as larvae, these salamanders can either metamorphose to have terrestrial traits at maturity or retain their juvenile aquatic traits as adults. We expect that pond
Olfactory predator discrimination in yellow-bellied marmots
Many species of mammals have been shown to modify their behavior in response to olfactory cues of predator presence, but few studies have attempted to directly compare responses to different predators. In this study, we assessed the response of yellow-bellied marmots (Marmota flaviventris) to the ur
The Effects of Soil Nitrogen Availability on Plant Reproduction and Solitary Bee Behavior
Changes in nitrogen availability can alter plant community structure, composition, and abundance as well as higher order interactions. The goal of this study is to investigate the relationships between soil nitrogen, plant reproductive success, and solitary bee behavior and reproduction. Three diffe
The effects of light intensity on ant-aphid mutualisms on Osha (Ligusticum porteri).
Spatial distribution and nest site selection in a Colorado cavity-nesting bird community
Linking pollinator behavior and pollen receipt in Ipomopsis aggregata
The Timing of Floral Color Change in Lupinus argenteus
This paper describes the timing of floral color change with Lupinus argenteus and the behavior of pollinator visitation to manipulated treatments. In theory plants my benefit from color change in two ways. One way is to direct pollinators to rewarding flowers. This may increase the foraging efficien
Consistency of individual foraging and vigilance patterns in Yellow-Bellied marmots
Animals frequently exhibit variation in their behavior. In the past this variation has been treated as statistical error, but research has identified correlated behaviors across contexts, referred to as behavioral syndromes. We focused on yellow-bellied marmots (Marmota flaviventris) and examined vi
Comparing predator-induced changes in stream insects with varying vulnerabilities to risk of predation
Mayflies in high-elevation streams in Colorado are more vulnerable to risk of predation based on their relative drift propensisties. Baetis bicaudatis, a mayfly that has high drift propensity, has been shown to respond to predation risk by accelerating its metamorphosis into an adult, which results
<i>Cardamine cordifolia</i> Pollination effects on seed and fruit production
I investigated the pollination ecology of Cardamine. Cordifolia, and how pollinators affected fruit and seed production especially in relation to variation in herbivory and habitat type in 2 different sites. Site 1 was more exposed to the sunlight and site 2 was less exposed to the sunlight. I inves
