Kalamazoo College student Joe Caton ’26 has turned his lifelong interest in radio technology into an innovative conservation project at Sarett Nature Center in Benton Harbor, Michigan. For his Senior Integrated Project (SIP), Caton built a low-cost telecommunications system to help the center monitor its population of Eastern box turtles.
Sarett is home to several types of turtles, and some, including the Eastern box turtle, are listed as threatened species in the state thanks to humans changing their habitats and predators threatening their safety.
Eastern box turtles play subtle but significant roles in their ecosystems. As omnivores, they help control insect populations and disperse seeds from berries and other wild plants. Their presence affects the food web as both consumers and prey, and their nesting habits intersect with larger environmental issues. At Sarett, turtles have contributed to booming raccoon populations, which can overconsume eggs and disrupt long-term turtle survival.
Sarett staff and volunteers have long tracked the reptiles using older analog equipment that emits radio pings, requiring searchers to walk toward the sound to locate individuals.
Caton, who is a computer science major with a telecommunications background, saw an opportunity to modernize the process and make it more accessible for conservation groups with limited resources.
“Once I found out Sarett was still tracking these turtles, I reached out to see if I could help,” he said. “The receiver technology was the area with the least work being done, so that’s where I focused.”
Caton sourced a software-defined radio device called a Hack RF, which can detect signals across a wide frequency range. He paired it with a screen for visualizing the turtle transmitters’ radio signals and built a homemade antenna using PVC pipe and a metal tape measure. When he and Sarett staff tested the system in the field, they were able to match pings to specific turtles based on recorded frequencies.
The equipment offers Sarett a flexible, open-source alternative to commercial radio trackers, which are costly and difficult to replace or replicate. Caton’s prototype can be produced at a fraction of the cost by printing circuit boards from existing online plans, making the approach scalable for other nature centers, research projects or youth-education programs.
Although Caton’s role focused on technology, he says his work has changed how he thinks about conservation.
“I hadn’t given a lot of thought to how computer science could be used this way,” he said. “Now I realize you don’t just have to use tools that already exist, you can make them yourself and tailor them to the work.”
Caton grew up in Three Rivers, Michigan, and first attended Glen Oaks Community College in nearby Centreville. He originally planned to pursue another degree path, but when Glen Oaks launched a computer science and cybersecurity program in 2020, he became one of its first computer science students. After completing his associate degree, Caton worked for a few years before deciding he wanted to finish a bachelor’s degree.
He had always been intrigued by K.
“When I was younger, I just wanted to go to K because everyone I knew was going to Western (Michigan University) and I wanted to be different,” Caton said with a laugh. “But as I got older and actually started reading about it and hearing graduates’ stories, it sounded like a place I would actually want to go.”
On a whim, he applied to K, assuming it would be too expensive. But the opposite proved to be true.
“I got this financial aid package in the mail that made it not only an option, but the cheapest option,” he said. “That pretty much answered the question for me.”
As a non-traditional transfer student at age 40, Caton expected to feel out of place at K. Instead, he again was surprised.
“The only person who ever brought up my age was me,” he said. “Once I stopped mentioning it, nobody else did either. Nobody looked at me funny or treated me differently. That made it a lot easier to just be a student.”
He quickly connected with computer science faculty including Professor Pam Cutter and Associate Professor Sandino Vargas-Pérez. Their accessibility and encouragement built his confidence to take on projects like the one at Sarett. Caton has also worked on campus in Media Services while balancing coursework and his home life.
Eventually, his SIP provided opportunities that Caton didn’t expect. He has been networking with professionals at the intersection of ecology and technology, and he plans to continue refining his prototype with Sarett. Using a Raspberry Pi—which is a low-cost, credit-card-sized computer—he hopes to combine radio tracking with image-recognition software being developed by WMU students to identify turtles by their unique shell patterns.
Caton’s SIP is complete, but the project continues and so does his enthusiasm.
“If you assume something like the conservation of Eastern box turtles doesn’t matter just because you don’t see the connection right away, you’re going to miss something important,” he said. “We don’t always know what role a species plays until it’s gone. That’s why this work matters.”




































