1,559 results — type: Student Paper ·
Assessing the forecastability & forecast skill of models to predict sex ratios of Valeriana edulis
Anthropogenic actions are rapidly changing ecological systems, and the species specific responses to this change are expected to have great impacts on ecological organization, natural resource abundance, and human health. Scientists urgently need accurate forecasts to help inform social, political,
Morph- and sex-specific differences in corticosterone of Arizona tiger salamanders (<i>Ambystoma mavortium nebulosum</i>)
Chronic stress can have detrimental effects on long-term health of amphibians. Sex and morph may cause variation in stress within salamanders such as the Arizona tiger salamaders (Ambystoma mavortium nebulosum) at the Mexican Cut Nature Preserve due to differences in biotic or abiotic conditions (
Sandpiper behavior
Induction of morphological change in <i>Daphnia</i> in the presence of <i>Chaoborus</i>
Are leafhoppers to blame? A study of the damage in aspen clones in Gunnison County, CO
Observing pollinator trait variation in relation to niche breadth in seasons of high and low precipitation
Interactions between plants and pollinators are complex and a change to one can cause a significant impact on the other. Environmental perturbations like drought can alter plant- pollinator systems, changing the relative abundance of flower species, shifting species distribution, and decreasing flor
The impact of climate change on Rocky Mountain plant communities: Differences in floral trait along an elevational gradient of transplanted communities
Alpine climates are seemingly adverse environments for plants. These habitats directly impact plants via pollinator scarcity and abiotic factors like extreme temperatures and precipitation that influence resource allocation. As a result, elevational gradients are natural laboratories that can be use
Predator and prey species have opposing responses to recreational trail use
While many ecological studies have investigated the impacts of recreation and trails on wildlife, we lack an understanding of how wildlife respond to recreational trails that exhibit seasonally dynamic levels of human activity. We used camera traps to assess changes in the presence of mammals along
The Direct and Interactive Effects of Warming and Species Interaction on Plant Functional Traits
Global climate change is a threat that continues to affect nearly every ecosystem on the planet through warmer temperatures, changes in precipitation patterns, and many other manifestations of a warmer world. Warming directly and indirectly affects plants and ecosystem functioning. In the natural wo
Effects of weather and floral density on foraging activity of cavity nesting bees (<i> Osmia </i>spp.)
Thermoregulation is an important factor for bee flight which ultimately contributes to an individual’s ability to forage and produce offspring. Rising temperatures could benefit insects by increasing their efficiency in reproduction and provisioning. However, warming could negatively impact floral r
Impacts of the invasive species <i> Linaria vulgaris </i> on soil ecology and native plant biodiversity
Invasive species are a major threat to biodiversity. Invasive plant species can alter ecosystems by outcompeting natives, lowering biodiversity, and change soil ecology. Additionally, invasive species can be costly to manage. Linaria vulgaris, a non-native noxious weed from Europe and Asia, was used
Trap behavior of <i> Zonotrichia leucophrys oriantha </i> at different elevations in the West Elk Mountains, Colorado
High-alpine ecosystems are particularly vulnerable to climate change. Thus, many ecosystem patterns are shifting due to warming temperatures, extreme weather events, and seasonal changes. This becomes an issue for birds that breed and live in high-elevation environments, as they may not be able to c
Oviposition variation among <i>Pieris napi</i> due to increasing glucosinolate levels in cruciferous hostplants
Specialization and foraging ergonomics in a subalpine bumblebee <i>Bombus appositus</i> (Hymenoptera: Apidae)
A Comparative Analysis of Saxicolous Lichen Diversity and Cover along an Elevation Gradient on Talus Slopes in Gunnison National Forest to Infer Possible Climate Change Effects
Climate change in Colorado has already increased temperatures by 2 ℉ and is predicted to continue to rise. Precipitation during winter months is predicted to increase, while projected precipitation for the spring, summer and fall is still uncertain. It is important to understand how saxicolous liche
Across Caste Variation of Proboscis Length and Within Caste Phenotype Matching of Subalpine Bumble Bees (<i>Bombus spp.</i>)
Bumble bees (Bombus spp.) are eusocial insects that typically consist of three castes, with each caste emerging and foraging at different times. Bumble bee queens and workers differ morphologically in several measurable traits, but morphological variation within species and within caste has not be
Effects of abiotic and biotic stress on plant fitness and herbivore defense in Boechera stricta
Abiotic and biotic factors influence plant fitness by altering the physical environment and resource availability. According to the stress gradient hypothesis, increasing physical stress in an environment increases positive plant-plant interactions and decreases negative interspecies interactions. I