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Graduate Students

Noah Mardian

Noah Mardian

Hometown: Joliet, IL
Undergraduate: Southern Illinois University
Faculty Advisor: Dr. Karl Williard

Noah is the fourth graduate student in a long-term research project that researches and identifies cover cropping (legume vs. non-legume) and tillage (no-till vs. reduced-till) systems’ effects on nitrate and dissolved reactive phosphorus leaching, as well as soil chemical properties like phosphorus stratification and organic matter content.

In his free time he enjoys hiking, weightlifting, gabbing about Taylor Swift, and day-dreaming about starting a homestead. Upon completing his Master of Science degree, Noah plans to work with the U.S. Forest Service or U.S. Geologic Survey as a forester or hydrologist.

Why did you choosse SIU?

A professor at my community college recommended SIU for their renowned forestry program. SIU’s affordability, proximity to home, and abundant natural beauty were appealing, but it was only after visiting campus and talking with some of the forestry faculty that I knew I made the right decision. I decided to enroll in SIU Forestry’s graduate school because I knew the faculty were kind, fun, ethical, knowledgeable, and eager to help me learn more about hydrology and accomplish my research goals.


Rebecca Ducay

Rebecca Ducay

Hometown: Elgin, IL
Undergraduate: University of Illinois at Urbana-Chamaign
Faculty Advisor: Dr. Brent Pease

Rebecca’s research seeks to better understand how anthropogenic noise pollution, particularly traffic noise, can affect the outputs produced by passive acoustic monitoring efforts.

In Rebecca’s free time she enjoys hiking, painting, and riding her longboard. Her future career plans involve wildlife management at the state or federal level.

Why did you choose SIU?

I found PEASE lab and I thought it was a great fit for my academic interests.


Sierra Mertz

Sierra Mertz

Hometown: Waterloo, IL
Undergraduate: Southeast Missouri State University
Faculty Advisor: Dr. Jon Schoonover

Sierra’s research involves sampling water quality, sediment trapping, and legacy phosphorus in water and sediment control basins (WASCoBs). Runoff samples are collected following intense storm events to compare the nutrients retained within the basins versus what is exiting. Sediment trapping is evaluated by placing feldspar pads throughout the basins and used as a ground-truth for drone surveys.

In her free time, Sierra likes to spend time outside rock climbing, kayaking, hiking, and camping. She endeavors to work for the Department of Natural Resources or the Department of Agriculture in the future.

Why did you choose SIU?

I initially looked at SIU for my undergraduate program, so when I saw there was an assistantship opening for the graduate program, I decided to come here.


Ellie James

Ellie James

Hometown: Springfield, IL
Undergraduate: Southern Illinois University
Faculty Advisor: Drs. Brent Pease and Eric Holzmueller

Ellie’s research is focused on using LiDAR as a methodology in detecting invasive shrub species within Jackson County, Illinois. In her spare time, Ellie enjoys hiking, thrifting, yoga, and volunteering.

Why did you choose SIU?

I chose SIU because of its close proximity to the Shawnee National Forest, the Forestry Program, and relative closeness to my family.


Jennifer Schultze

Jennifer Schultze

Hometown: Midland, Michigan
Undergraduate: Indiana University Bloomington
Faculty Advisor: Dr. Clay Nielsen

Jennifer’s research will provide camera trap data before, during, and after raccoon removal to obtain raccoon abundance, changes in occupancy, and assist in determining the efficacy and long-term feasibility of raccoon removal programs. This study will help wildlife management agencies effectively use predator removal methods to aid in the conservation of vulnerable prey species, disease control, and management of human-wildlife conflicts.

Jennifer enjoys hiking, reading, and crocheting in her free time. She plans to obtain a full-time position on the state or federal level working in wildlife management. She is also interested in a career path related to environmental education.

Why did you choose SIU?

I began working at SIU as a field field technician for the Cooperative Wildlife Research Lab and I enjoyed the community and opportunities that SIU provided.


Shauna Sayers

Shauna Sayers

Hometown: Front Royal, Virginia
Undergraduate: Virginia Polytechnic Institute and State University
Faculty Advisor: Dr. Brent Pease

Shauna is a master’s student studying the federally endangered Key Largo woodrat and Key Largo cotton mouse that are endemic to Key Largo, Florida. She will analyze the current distribution and abundance of woodrats and cotton mice to further understand the impacts of invasive Burmese pythons. Additionally, she will deploy remote cameras at woodrat nest structures and use a machine learning program, MegaDetector, to sort through timelapse photos. This will potentially aid in improving reaction time and documentation of Burmese pythons at woodrat nests.

In her free time, Shauna enjoys baking, climbing, and snorkeling. Her future career plans as a wildlife biologist involve conducting impactful research and conservation efforts that preserve and promote biodiversity.

Why did you choose SIU?

I chose SIU for my graduate program because of the research opportunities that aligned with my interests, faculty expertise, and the positive lab environment!


Kelly Crandall

Kelly Crandall

Hometown: Cassadaga, New York
Undergraduate: Cornell University
Faculty Advisor: Dr. Brent Pease

Kelly is examining how urban borders affect the movements and resource utilization of mesopredators on a wildlife refuge in the Florida Keys using GPS collar data. She is also looking at the seroprevalence of Toxoplasma gondii in the raccoon population of Key Largo and how feral cat populations and exploitation of cat food may influence parasitic transmission dynamics.

During free time, Kelly enjoys ceramics, going to walks, reading, and playing with her cat. Her career goals include working for a state or federal agency as a wildlife biologist.

Why did you choose SIU?

SIU gave me the freedom and support to pursue my research interests while providing me with endless opportunities to learn new skills.


Chibueze Iguegbe

Chibueze Iguegbe

Hometown: Nkwerre, Nigeria
Undergraduate: Federal University of Technology, Owerri
Faculty Advisor: Dr. Jon Schoonover

Chi’s project involves evaluating streambank and in-stream erosion as a source of phosphorus and sediment in two agricultural watersheds in Illinois.

In his leisure time, Chi enjoys engaging in activities such as reading, playing soccer, and listening to music. His career aspirations involve pursuing a profession in hydrology and hydrogeology.

Why did you choose SIU?

My decision to enroll at SIU was a result of its renowned academic standing and the exceptional expertise of its forestry faculty members, particularly in the specialized areas of hydrology and watershed management.