1,559 results — type: Student Paper ·
Seasonal Progression of Algal Development and Quality in Streams that Vary in Timing of Springtime Peak Flow
Climate driven shifts in stream hydrology from early, rapid snowmelt may have implications for algae growing within high altitude montane streams. Peak flow scours the benthic layer and clears senesced algal growth and sediment, effectively priming the substrate for new algal growth following peak f
Investigating Herbivore Relationships to Boechera stricta in a Climate Change Context.
Boechera stricta is a mustard that grows naturally throughout a wide range of altitudes in the Colorado Rocky Mountains. B. stricta has a variety of natural herbivores, which makes it an interesting system in which to study how plant-herbivore relationships vary over an elevational gradient. Through
Does road dust have an effect on nectar production in <i> pomopsis aggregata </i>?
Road dust has potential impacts on plant metabolism and reproduction even in small amounts. Dust is everywhere and is increasing due to human influence, this has the potential to reduce overall plant pollination worldwide. Since dust is roughly the size of a grain of pollen, it might possibly clog t
Mix and Match: Transplanting symbiotic fungal partners across elevational gradients to gauge responses in migrating Elymus hosts
Within the next century, ecosystems are projected to experience climate warming, with strong effects in mountain systems. Warming can alter species distributions, with documented upward migrations along elevation gradients. Species interactions may be important factors that promote species establish
How does road dust influence Ipomopsis pollination?
Premise of research. Road dust affects the quantity of pollen received by Ipomopsis aggregata flowers, with dusty flowers receiving less pollen than undusty flowers. One possibility is that hummingbird pollinators visit dusty flowers less and deliver less pollen. This could happen if dusty flowers p
A behavior study of <i>Castor canadensis</i>
Nesting Preferences of Osmia Bees in the Rocky Mountains
Osmia is a genus of solitary, cavity-nesting bees which will readily nest in artificial nest- blocks. Nest-blocks (or “trap-nests”) have long been used to study cavity-nesting bees and have recently been popularized for conserving bees in urban and agricultural systems. What attributes of the nest-b
Comparing the level of human disturbance in 2009 and 2018 at yellow-bellied marmot (<i>Marmota flaviventer</i>) colonies
Natural areas and the animal communities within them are inevitably affected by human disturbance. Human disturbance can occur through tourism, ecotourism, and simply human presence. The effect of a human on an animal can be detrimental, and has even been shown to cause increases of stress response,
Determining the Effects of Climate-Induced Range Shifts on Caddisfly Population Dynamics
The geographic distribution of many freshwater insects is restricted in part by timing of snowmelt and the temperature of the water. Because of this, climate change is having a significant effect on the distribution of aquatic species around Gothic, Colorado. Scientists have documented that species
The Effect of Climate Change on Plant Communities in the Rocky Mountains: How floral traits differ along an elevational gradient and in reciprocally transplanted communities
Alpine zones are characterized by climatic conditions that can vary over short vertical distances. Therefore, elevational gradients have been used to study how changes in climate can influence plant form, function, and diversity. In my study, I examined floral traits in native communities along an e
The impacts of early snowmelt and summer precipitation on the physiology and leaf morphology of <i>Ipomopsis aggregata</i>
Climate change is occurring, and the effects will be visible all over the planet. In a subalpine ecosystem, earlier snowmelt and changes in summer precipitation are predicted to occur due to an increase in air temperature. During the summertime, this variation may lead to changes in traits, a proces
An integrative study of marmot responses to ecotourism
Human disturbance in the form of ecotourism alters behavior many species and may impact fitness but few studies take an integrative approach to quantify impact in various ways to test for variation in physiological, behavioral, and consequential life history and demographic traits. We extended a pre
Effects of Ant Presence on Nicrophorus investigator’s Reproductive Success
Burying beetles require carrion in order to successfully reproduce and they compete with vertebrate scavengers, other burying beetles, ants, flies, fungi, and microbes for this ephemeral resource. Burying beetles have mechanisms to combat competition from fly eggs, fungi, and microbes, but interacti
The Effects of Climate-Driven Changes in Co-flowering between <i>Linum lewisii</i> and <i>Potentilla pulcherrima</i> on Pollinator Services
Anthropogenic climate change is affecting many ecosystems. Changes in the melting of snowpack have altered flowering phenology in subalpine meadows. The subalpine meadows at the Rocky Mountain Biological Laboratory in Gothic, Colorado are experiencing shifts in co-flowering patterns. Two flowers, Li
Comparing Longworth live traps to hair tubes for describing small mammal communities
Ecologists are always interested in studying populations of a certain area. There are many reasons for this, but two reasons include to see the change in distribution over time and because it can help tell about interactions between species. A traditional way of studying small mammal populations tha
Orchid pollination
Investigation of Inbreeding Depression in <i>Boechera stricta</i> Fitness
Maintaining high levels of self-fertilization within a population increases homozygosity, exposes deleterious alleles, and may cause inbreeding depression. Yet, many species of flowering plants have evolved to self-fertilize a majority of the time. Often, self-fertilization is favored over outcrossi
What abiotic and biotic factors predict the shapes of plant diversity-productivity relationships?
Anthropogenic influence over biodiversity has altered ecosystem functions. One important ecosystem function related to diversity is productivity. Plant richness has long been considered for determining productivity. Despite the importance of the relationships between diversity and productivity, thei
Behavioral correlates of innovation success in facultatively social marmots (<i>Marmota flaviventer</i>)
Innovation has transformed ecology and evolution, and understanding behaviors that lead to innovation success can have profound implications and applications in animal populations and human society. In past research, persistence, behavioral selectivity, and neophobia have influenced an individual’s