353 results — type: Thesis

Thesis

Contact Metamorphism of the Mancos Shale: Impacts on Solute Release and Weatherability in the East River Valley, Gothic, CO

Alteration of rocks by contact metamorphism directly impacts rock pore structure and mineralogy, potentially decreasing weathering susceptibility and altering water residence times and release rates of aqueous solutes. Mountainous catchments, which can often be metamorphosed, are important for water

2018
Thesis

Competitive context drives pollinator behavior: linking foraging plasticity, natural pollen deposition, and plant reproduction.

Understanding the functional impacts of pollinator species losses on plant populations is critical given ongoing pollinator declines. Simulation models of pollination networks suggest that plant communities will be resilient to losing many or even most of the pollinator species in an ecosystem. Thes

2016
Thesis

Productivity of Montane Meadows in a Warming World: Evidence from an Elevation Gradient and a Warming Experiment

Climate change is expected to disproportionately impact high elevation ecosystems by disrupting current temperature and precipitation regimes. The future carbon balance of these systems is uncertain, given the interplay between longer growing season length and the potential for increased drought. Cu

2016
Thesis

Causes and consequences of variation in social network attributes in yellow-bellied marmots (<i>Marmota flaviventris</i>)

Social behavior consists of distinct and measurable social attributes. While many previous studies have categorized species as social or not, or quantified group size, studying the functional correlates of separate attributes may offer more specific insights into the adaptive value of sociality, but

2011
Thesis

Multimodal Integration in Uncertain Environments: A Quantitative Model and Field Experiments with Yellow-bellied Marmots (<i>Marmota flaviventris</i>).

2015
Thesis

Effects of microclimate, dispersal, species interactions, and environmental stochasticity on demography

Effects of microclimate, dispersal, species interactions, and environmental stochasticity on demography

2023
Thesis

Forest composition and structural controls on canopy snow interception in a Colorado watershed

Globally and across the Western United States shifting climate regimes have the ability to propagate change throughout ecosystems and affect their associated hydrologic functions. In mountain regions, which serve as “water towers” for much of humanity, the complex interactions between vegetation and

2024
Thesis

Causes and consequences of pre-hibernation body mass in golden-mantled ground squirrels (Callospermophilus lateralis)

Mammals that cope with harsh environmental conditions by hibernating show seasonal variation in body mass, as fat reserves are accumulated during summer and depleted during winter. Hence, pre-hibernation mass is often considered a key phenotypic trait in hibernating species that can be an indicator

2022
Thesis

Effects of early snowmelt on plant phenophase timing and duration across an elevation gradient

EFFECTS OF EARLY SNOWMELT ON PLANT PHENOPHASE TIMING AND DURATION ACROSS AN

2021
Thesis

Advanced phenology of higher trophic levels shifts aphid host plant preferences and performance

The abundance of insect herbivores, such as aphids, is mediated by interactions with

2019
Thesis

Nesting aggregation as a determinant of brood parasitism in mason bees (<i>Osmia</i> spp.)

Identifying forces that affect population dynamics can allow us to better understand the

2016
Thesis

Adaptation, assisted migration, and extinction in a warming world: Understanding the response of <i>Androsace septentrionalis</i> to climate change through climate manipulation and transplant experiments

2017
Thesis

Behavioral and spatial dynamics in a fluctuating population of golden-mantled ground squirrels (<i>Callospermophilus lateralis</i>)

Investigating individual-based habitat settlement and space use decisions (i.e., how

2020
Thesis

Effects of Size-selective Predation and Food Competition on High Altitude Zooplankton Communities

1970
Thesis

Early snowmelt and warming independently drive the reproductive phenology of subalpine wildflowers

2020
Thesis

The ecology of co-infection in the phyllosphere: unraveling the interactions between microbes, insect herbivores, and the host plants they share.

2015
Thesis

Causes and consequences of plant responses to environmental change over physiological, ecological, and evolutionary time.

2015
Thesis

The use of models as visual stimuli in insect behavior studies

19
Thesis

Predicting climate-induced shifts in burying beetle distributions: integrating niche partitioning, competition, and thermal performance

2010
Thesis

Tinajas of southern Utah: reproductive strategies and the habitat template

2002