Vigilance in the golden-mantled ground squirrel (<i>Spermophilus lateralis</i>): effect of age and distance to human-created structures
Animals are expected to maximize feeding success while minimizing predation risk; however, foraging and vigilance behaviors often conflict. I studied this trade-off in Golden- mantled ground squirrels (Spermophilus lateralis), with respect to human-created structures in Gothic, CO, site of the Rocky
Floral visitation determined by phylogenetic distance in the plant communities of Gothic, CO.
Pollinator’s attraction to various species of angiosperms is based upon various sensory outputs. These attractants could be floral/inflorescence size, color, scents or other various types of pollinator attractants. It can be inferred that plants species that are more closely related will have simila
Does breeding bird density drive vocal individuality?
Many species produce individually specific vocalizations and sociality is a hypothesized driver of individuality. Previous studies of social variation focused on species that were colonial nesters or not, and social group size in sciurid rodents. If sociality is an important driver of individuality,
Ecological restoration of Alder Creek, Colorado, USA
Partial ecological restoration of important attributes of Alder Creek, Gunnison County, CO, U.S.A., has been successful since the area has continued in its restored condition for over a decade. However, due to cattle grazing, the system is not self maintaining and, thus, requires continual managemen
Global change and mountain regions
Test for predator escape mechanisms in ostracods
Is there a positive correlation between bee size and size parameters of the flowers the bees visit for pollen to provision their nests?
In this study I tested if there is a correlation between bee size and size parameters of flowers the bees visit for pollen. In the plant community evaluated there are not many characteristics restricting the use of pollen by bees. Most of the plants analysed have open corollas and/or present pollen
A nectar-inhabiting bacterium may not influence female fitness in Ipomopsis aggregata
Hummingbirds are known to select which floral resource to utilize based on visual and olfactory cues. The role that microbes play in mediating the mutualism between hummingbirds and flowers is mostly unexplored in the field of microbial and pollination ecology. Bee pollinators are known to be deterr
Effect of Nitrogen on Linaria vulgaris and Native Species
We studied the effect of varying amounts of soil nitrogen on Linaria vulgaris and native species. Linaria vulgaris is an invasive weed in the Rocky Mountains that forms monocultures, hindering the growth of native plants. The Rocky Mountain soils are nitrogen-poor, and we expected nitrogen-reduced s
Clonal integration of induced resistance to herbivory damage in <i>Chamerion angustifolium</i>
A plants ability to resist high levels of herbivory may increase performance and fitness, then be favored by natural selection (Agrawal et al 1998, Karban 1993). The objectives of this study were to find if Chamerion angustifolium, Fireweed, develops an induced resistance to herbivory damage and if
Evaluating differences in water temperature and macroinvertebrate communities in BDA ponds, stream pools, and beaver dam ponds
Beaver Dam Analogues (BDAs) are human-made structures mimicking beaver dams and are implemented in restoration projects to slow flow, aggrade sediment, and reconnect streams to floodplains or create wetland conditions. Despite the recent popularity of this technique, very little monitoring occurs at
Variation in interaction zone size and influence of sex on fitness components of Valeriana edulis
Sex and size allow for many different types of individuals within one species. These individuals can have different needs, which can influence responses to interaction, as well as what interactions take place between species members. We modeled how the sex and size of individuals of Valeriana edulis
Does Bumble Bee Diet Breadth vary with the Floral Abundance in a Meadow?
Years of early snowmelt tend to have a decrease in floral abundance throughout the year. This causes flowers to be more susceptible to frost and drought stress. Based on which flowers are successful this can affect bumble bee diet breadth due to the direct correlation between bumble bee proboscis le
Pigmentation as stress response in A. septentrionalis.
The Gothic Quest: A History of the Gothic Novela Gothic Bibliography
Other| September 01 1942 The Gothic Quest: A History of the Gothic Novela Gothic Bibliography Montague Summers. London: The Fortune Press; New York: Columbia University Press, 1941. Pp. xx + 621. $10.00. Ernest Bernbaum Ernest Bernbaum Search for other works by this author on: This Site Google Moder
Salamanders impact on L. externus population densities
The caddisfly L. externus has been observed to have a decline in population density over the summer months as the larvae develop. However this pattern has not been formally tested, so collecting population density data is important for future research and understanding changes in densities over time
Environmental Correlates and Fitness Consequences of a Flower Color Polymorphism in Boechera stricta.
Effects of Bombus Pollinator Removal on Fly Foraging Behavior.
Native Bombus species are in decline in the United States. Since pollinators are such integral species in a system, the extinction of a single Bombus species could potentially have far reaching consequences on crop production and plant reproduction necessary for species diversity ad agriculture. How
2000-2019 in the Colorado River Basin and Beyond
In the first two decades of the 21st century the Colorado River Basin suffered a prolonged drought. Remarkably this period turned out to be arguably the most innovative and collaborative in the basin's modern human history. This working paper reviews the major events of the period, highlights some o
Effects of Insect Damage to <i>Helianthella quinquenervis</i> (Asteraceae) Inflorescences on Pollinator Visitation
Plant reproductive success is often influenced by not only direct effects of flower-eating herbivores (florivores) consuming floral tissues, but also the indirect effects of pollinator visitation. Previous literature suggests that florivore damage can negatively influence pollinator visitation, cons