Rolling with Pollies: Soil moisture effect on recovery from conglobation in the Common Pill Bug, Armadillidium vulgare

Jade Coulter, Wildlife Undergraduate Student

College of Natural Resources & Sciences

Pill bugs roll into a ball for more reasons than to protect themselves! They may also be conserving water, thermoregulating, or it may all be up to individual boldness. My research investigated whether soil moisture would affect the amount of time it took for pill bugs to unroll. I found that there was no correlation between sex, length, soil moisture, and the amount of time they spent rolled up. However, there was a great variation among individuals.

Rooftop farming in Hong Kong

College of Natural Resources & Sciences

The idea of this study is to conduct more research on farming in the city, to be specific, Hong Kong. As I grew up in Hong Kong, space is one of the biggest challenges in the city. While citizens are looking for ways to implement their lifestyle, rooftop farming can be one of the great opportunities to build up a community around the neighborhood, provide fruits and vegetables for the residents, and promote a healthy living lifestyle. While promoting the idea of rooftop farming, there are obstacles that the residents need to be overcome. Therefore, I will be analyzing the ecosystem, finance, and government policy that might help the city farmers in Hong Kong.

Sacramento Pike Minnow in the Eel River

College of Natural Resources & Sciences

In our presentation, we will be researching and presenting the historical, and current effects in the Eel River regarding the invasive Sacramento Pike Minnow. This fish was introduced into the Eel River watershed in 1962 and has been an issue for people who depend on the river for the past 45 years. The pike minnow is a species that eats juvenile salmonids (salmon, trout, steelhead). Salmonids are extremely important to the eco-system as well as the people who rely on it. The Wiyot people depend on healthy salmon runs each and every year as a source of food, and more importantly in today's day and age, a source of income.

SAL: A new method for modeling stream flow in small watersheds

Jim Graham, Environmental Science & Management Faculty

College of Natural Resources & Sciences

Streams Across Lands (SAL) is a new stream flow modeling method for small watersheds. SAL is based on standard hydrological equations for water flow on the surface, through soil, and in stream channels. The model can be used with standard spatial datasets including Soil Survey Geographic Database (SSURGO, NRCS) and National Land Cover Data (NLCD). SAL was tested primarily within the Elder Creek watershed and showed a high level of correlation with the observed discharge at the USGS station. SAL includes an easy-to-use graphic interface within the BlueSpray GIS application and provides a variety of graphic outputs for use in watershed analysis and community outreach.

Salamander activity: The impact of abiotic factors on salamander movements in Northern California

Luke Leuty, Wildlife Undergraduate Student

College of Natural Resources & Sciences

This poster focuses on studying the relationship between abiotic factors and salamander activity. We predict soil saturation to be the biggest factor influencing salamander activity. We also examine soil temperature, air temperature, daily precipitation, and accumulative precipitation and their affects on salamander activity.

Salamander Habitat Abundance Based on Water Flow

Chris Vignery, Wildlife Undergraduate Student

College of Natural Resources & Sciences

A study related to finding out a relationship between the abundance of salamanders and the flow of water in the Arcata community forest.

Salamander occupancy according to log shape and condition in Humboldt County

Riley Tetzlaff, Wildlife Undergraduate Student

College of Natural Resources & Sciences

For my research project I studied whether or not the shape and condition of a log effected the occupancy rate of salamander, and according to my data I was half right.

Salinity influence in feeding of dabbling and diving ducks

College of Natural Resources & Sciences

Tested to see if salinity levels in water had an affect on feeding in water fowl. Looking at dabbling and diving ducks, I saw which one exhibited most feeding. Species studied were Buffleheads as diving ducks(Bucephala albeola) and Mallards (Anas platyrhynchos) as dabbling ducks.

Sand Crab, Emerita analoga, Burrowing Time in Relation to Relative Abundance in Humboldt County

Andrew Cha, Wildlife Undergraduate Student

College of Natural Resources & Sciences

Finding the relation between grain size and burrowing time of sand crabs at study sites of Samoa, Mad River, Moonstone, Clam and Trinidad state beach. Relative abundance is measured at each study site to determine if there is a correlation between grain size, burrowing time and habitat selection.

Save the Bison

College of Natural Resources & Sciences

For ideafest we plan to enlighten our fellow Humboldtians on how Native tribes are helping to save the bison from extinction. Bison have played a key role in Native culture especially in the great plains . Their bison are like our salmon. The Sioux and Assiniboine tribes of Fork pecks currently have the largest restoration herd, with up to 340 bison living and thriving on their lands. We major in zoology and we decided to focus in on this subject because it is a clear bridge on how Indigenous people make connections between animals and their culture. Thereby, a connection between NAS and Zoology is born and recognized :) .