Physical Sciences and Mathematics Commons^™

Body Dimension And Length-Weigh Relationships Of Invasive Exotic Earthworm Species In Huron Mountains Forests, Paula Arroyo, Xiaoyong Chen, Timothy Gsell, John A. Yunger, Mary E. Carrington

Research Days

Invasive exotic earthworms have undesired ecological effects on structure, function, and biodiversity of forest ecosystems in the Great Lakes region. Biological parameters including body length, weight, growth rate, and regeneration patterns of earthworms are necessary to understand their life cycle and impacts on ecological processes such as nutrient biogeochemistry cycling and carbon sequestration in the forests, as well as for forest management practices. In this work, earthworms were surveyed in main forest types of the Huron Mountains Preserve of Michigan, Upper Peninsula during the period of May 2021 to October 2022. Earthworms were captured from established sampling quadrates using a …

Casein Kinases Are Required For The Stability Of The Glucose Sensing Receptor Rgt2 In Yeast, Danny Bloor

Liberty University Research Week

Undergraduate

Basic

The Relationship Between Insect Visitors And Chemical Fragrance Composition Of Cypripedium Parviflorum Var. Pubescens In Central Virginia., Ruth Elkins

Student Scholar Showcase

Due to its rarity, little is known regarding which insects pollinate Cypripedium parviflorum var. pubescens, large yellow lady slipper orchids, and why they do so when offered no reward. Insect identification and fragrance composition data have been collected from two populations of large yellow lady slippers in Central Virginia for more than a decade. This research analyzed data in order to determine potential relationships between visiting insects and fragrance compositions of the orchid. The results of this research can be used to establish and protect populations of Cypripedium parviflorum var. pubescens.

A Chemical In Filter Paper Interferes With Trail Following Behavior In The Termite Reticulitermes Hesperus (Banks), Kathryn Vest

Student Scholar Showcase

Termites follow chemical trails. In previous experiments we dissolved and diluted chemicals in acetone to test if they elicited trail following. Each trail was a straight line across the arena drawn with 10 µl using a glass capillary (Microcaps). We noticed a minor but stable response to trails laid with pure acetone. The response could be caused by contaminated acetone or by a chemical in the filter paper (Watman #5) that lined our arena (petri dish, 10cm diameter). We could confirm that the termites respond to acetone alone. Soxkhlet extraction for 8 hours removed the signal from the filter paper. …

Effect Of Environmental Conditions On Biomass Of Symplocarpus Foetidus, Christy Lemay

Student Scholar Showcase

Symplocarpus foetidus (skunk cabbage) is an obligate wetland plant that occurs sporadically in wetlands throughout Virginia. Its life cycle is well studied with flowers budding in late January to early February through a process known as thermogenesis that heats the soil surrounding the plant. Pollination of fruits by flies and distribution of fruits/seeds through wildlife. Leaves appear in March with full growth above ground by early May. The leaves die back by July. Reproduction and distribution is sensitive to disturbance and environmental factors such as soil moisture, hydrology, and seed distribution. We collected environmental data in eight designated wetland plots …

Creating A Predictive Model For Flowering Of Virginia Orchid, Cypripedium Pubescens, Emily Horton

Student Scholar Showcase

No abstract provided.