1,559 results — type: Student Paper

Student Paper

Quantifying ethanol in bumble bee honey and Colorado rocky mountain wildflowers

Ethanol is a natural byproduct of yeast fermentation of plant sugars. In flowering plants, yeasts often form mutualistic relationships by inhabiting nectar, where they benefit from access to sugar and confer antimicrobial protection through the production of ethanol. Ethanol in nectar not only shape

2025
Student Paper

Time allocation to behavior in marmots: a comparison of adults and juveniles

1998
Student Paper

The Impact of Delphinium nuttallianum and Ipomopsis aggregata Phenology on Broad-tailed Hummingbird (Selasphorus platycercus) Visitation Patterns

Biological interactions reliant on synchronized phenology are being thrown into disarray with warming temperatures and an earlier onset of spring. Migrating Broad-tailed Hummingbirds (Selasphorus platycercus) in Gothic, Colorado tend to arrive and breed in alignment with wildflower flowering phenolo

2024
Student Paper

Comparing floral morphology and inflorescence structure of Lupins argenteus and L. bakeri in sympatry and allopatry

Differences or similarities in floral morphology can affect the interactions between plants and shared pollinator communities. As such, plant species with similar floral morphology may be competing for pollinators or facilitating pollinator attraction. Thus, pollinators mediate selection on floral m

2024
Student Paper

Nowhere to go but Up: Investigating Bumble Bee population Shifts over Elevational Gradients

Bumble bees are important pollinators in both the wild and in agriculture; however, several species globally are under threat due to multiple anthropogenic factors. One of these threats is climate change, and many bumble bee species have adapted by moving up in elevation. This has only been observed

2024
Student Paper

The Impact of Delphinium nuttallianum and Ipomopsis aggregata Phenology on Broad tailed Hummingbird (Selasphorus platycercus) Visitation Patterns

Biological interactions reliant on synchronized phenology are being thrown into disarray with warming temperatures and an earlier onset of spring. Migrating Broad-tailed Hummingbirds (Selasphorus platycercus) in Gothic, Colorado tend to arrive and breed in alignment with wildflower flowering phenolo

2024
Student Paper

In your stomach or in your nectar? Disentangling the effects of two pollination-related yeasts on bumblebee behavior and foraging

The study of plant-insect interactions and pollination has just begun to scratch the surface of the microbes that inhabit many of the surfaces involved in these interactions. While most microbial studies have focused on the roles of obligate nectar yeasts in mediating pollinator behavior and fitness

2023
Student Paper

Testing for competition, facilitation, and intraguild predation between two co-dominant detritivores: the caddisfly <i> Limnephilus externus </i> and chironomid midges

Most living organic material goes through the detrital pathway. Detritovores are incredibly important in ecosystems for the recycling of nutrients and energy. This project explores the inter- and intraspecies relationships between two co-dominant detritovores that inhabit the high-elevation rocky mo

2022
Student Paper

Variations in the life history of tiger salamander (<i>Ambystoma tigrinum</i>) populations near Gothic, Colorado

1971
Student Paper

The Effect of Snowmelt Timing on Pollinator Visitation to Subalpine Wildflowers

The plant and pollinator mutualism is under increased stress due to climate change, especially in subalpine ecosystems. Climate change is altering the timing of snowmelt in subalpine ecosystems, which changes the flowering phenology and possible the floral abundance of subalpine plants and therefore

2022
Student Paper

Abundance and Identification of Hymenopteran Parasitoids in Euphydryas gilletti

Introduced species are thought to be free of natural enemies when they are brought into a new area. Euphydryas gilletti was introduced to RMBL to the south of its native range in the northern Rockies. I used this butterfly to examine whether it has fewer parasitoids in its new environment. To check,

2022
Student Paper

Effects of Environmental Pond Drying Cues on <i> Asynarchus nigriculus </i> Cannibalism Rates

Mexican Cut Preserve in the Elk Mountains is home to a unique system of ponds with a high diversity of aquatic life. Many species of caddisflies inhabit the various temporary, semi- permanent, and permanent ponds, including Asynarchus nigriculus. A. nigriculus is an aggressive caddisfly species that

2022
Student Paper

Analyzing Atmospheric Carbonaceous Material Influenced by Wildfires Through Raman Spectroscopy

In 2020, wildfires burned more acreage in the United States than in the past twenty-one years.1 Boreal wildfires are the cause of ten percent of all annual atmospheric soot in the Northern Hemisphere, which is alarming because soot is detrimental to both human health and environmental health. Some o

2021
Student Paper

Pollination Preferences of <i> Geranium richardsonii </i> Between Bee and Fly Species at High and Low Elevations

Geranium richardsonii was studied at three different elevations to determine if there was a change in the type of pollinator species that visited it. The purpose of this experiment was to test the hypothesis that flies are more abundant at higher elevations and replace bee species found at lower obs

2021
Student Paper

Effects of high temperature and early snowmelt on floral morphology and volatile organic compounds in <i> Ipomopsis aggregata </i>

Climate change is causing warmer temperatures and earlier snowmelt throughout the mountains of Western North America. This study was designed to investigate how these two factors of temperature and snowmelt date influence floral traits, using Ipomopsis aggregata as a model species. While phenologica

2021
Student Paper

The effect of early snowmelt on pollination: A study of four Rocky Mountain subalpine plant species

High elevation plant ecosystems are heavily dependent on snowmelt for maintaining spring soil moisture levels. As climate change alters traditional weather patterns and reduces snowpack, snow is melting earlier and altering flowering phenology. With this change in flowering time potentially exposing

2021
Student Paper

Nectar Variation in Simple and Compound Flowers; and its Effects on Plant Pollinator Interactions

Pollinators play an important role within a variety of ecosystems but are experiencing declines. In recent years, climate change has been affecting the mutualistic relationship between these organisms and the corresponding plants they interact with. It is important to closely study interactions such

2021
Student Paper

The Effect of Climate Change on Two Primitively Eusocial Bees

High altitude regions are likely to be highly affected by climate change. Pollinators such as bees in these regions may have to change life history traits to survive. Because eusociality is associated with reduced mortality and increased resilience to resource variation, primitively eusocial bees ma

2021
Student Paper

Effects of frost and neighborhood on Tephritid fly herbivory of <i>Erigeron speciosus</i>

With earlier snowmelt, the impacts of a late frost in the Rocky Mountains have been more consequential for the production of flowers in species such as Erigeron speciosus. Several species of Tephritid flies (Diptera: Tephritidae) are pre-dispersal seed herbivores of E. speciosus. The neighborhood ar

2020
Student Paper

The Effects of Exclusion Bags and Open-Top Chambers on Pollinator Activity

It’s common for scientists to apply experimental practices that have worked well in another study to their own studies without a complete consideration of how that manipulation may impact their system. Open-top warming chambers and pollinator exclusion bags are two such common experimental manipulat

2019Student paper