1,559 results — type: 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
Time allocation to behavior in marmots: a comparison of adults and juveniles
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
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
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
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
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
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
Variations in the life history of tiger salamander (<i>Ambystoma tigrinum</i>) populations near Gothic, Colorado
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
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,
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
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
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
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
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
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
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
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
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
