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Immigration Rights and Resources for the Campus Community

Exercising Your Rights to Free Speech

Kendall Archie

Portrait of Kendall Archie

Advisor

Alison O’Dowd

Kendall Archie,

Thesis:
Benthic Macroinvertebrate Response to Streambed Disturbance and Seasonal Inundation on the Trinity River

Kendall’s project aims to improve understanding of the relationship between flow management and food web development on the Trinity River. Altered hydrology from dam operations has disrupted natural flow patterns on the Trinity River, affecting the aquatic insect community composition and seasonal food availability for fish. Previous studies about the Trinity River focused on physical habitat needs, such as depth, velocity, and escape cover, but components such as temperature and food availability, particularly through benthic macroinvertebrates (BMIs), have received less attention, despite their vital role in supporting juvenile salmonids. In collaboration with Trinity River Restoration Program and its partners, Kendall’s research seeks to address knowledge gaps regarding how BMI communities respond to disturbances and the recolonization of newly available habitats. The study’s results will help refine adaptive management strategies for flow regulation in the Trinity River.

Emily Cooper

Portrait of Emily Cooper

Advisor

Alison O’Dowd

Emily Cooper, 2017

Thesis:

Emily's research quantified anadromous salmonid spawning and rearing habitat and estimated potential carrying capacity in the mainstem Eel River watershed upstream of Scott Dam for Coho salmon, Chinook salmon, and steelhead trout. Fish passage barriers upstream of Scott Dam were identified, and streams within the designated study site were stratified into reach types that were then be subsampled for implementing habitat assessment field surveys. Ground survey data, aerial imagery, and LiDar data were combined to create a three-dimensional geospatial fish population model to estimate capacity. Implications of this project have the potential to provide evidence for dam removal, as well as demonstrating advances in applying high-resolution topographic data from LiDar technology to instream habitat modeling and carrying capacity estimation. This can assist researchers and managers in adapting watershed management practices that combine field-based methods and technological advances to support both human and freshwater systems.

William D. Ritts

Portrait of William D. Ritts

Advisor

Steven J. Steinberg

William D. Ritts, 2003

Thesis:
A quantitative risk assessment of Port Orford cedar root disease in the Smith River National Recreation Area.

Erin Degenstein

Portrait of Erin Degenstein

Advisor

Alison O’Dowd

Erin Degenstein, 2015

Thesis:

Erin's research explored non-native invasive velvet grass (Holcus lanatus) that disrupts natural ecosystems in the Sierra Nevada of California. Several species are encroaching on wilderness landscapes in Sequoia and Kings Canyon National Parks, and resources to control these invasions are limited. This study will use habitat suitability modeling to predict potential distributions for Holcus lanatus. The maps produced by this research can inform early detection surveys for Holcus lanatus so that National Park Service staff can maximize available resources. A spatial visualization of potential habitat can allow managers to best utilize their limited resources to help preserve and protect wilderness ecosystems.

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