The Costello Lab at Kent State University is inviting applications for a 10-week summer research experience for undergraduates. These positions are part of the National Science Foundation Research Experience for Undergraduate (REU) program. Students will study how the ecology of flowing water ecosystems is influenced by water chemistry. Two successful applicants will join the team of researchers in the Costello Lab exploring the causes and consequences of trace metal and nutrient limitation on stream communities and ecosystems. The REU students will design and complete an independent research project related to trace metals and animal or microbial communities. Areas of active research that applicants could contribute to include examining how trace metals influence rates of microbial processes such as decomposition and nutrient acquisition and investigations on how trace metals affect stoichiometry and nutrient balance in stream algae and macroinvertebrate grazers. REU students will have the opportunity to conduct field work in northeast Ohio streams and develop nutrient analysis lab skills.The position is open to undergraduate students who are citizens or permanent residents of the United States and are enrolled in (but not completed) a degree program leading to a baccalaureate or associate degree. Applications are welcome from any academic major, and I strongly encourage students from groups that are underrepresented in STEM fields to apply. The timing of the 10-week program is flexible with a start date between mid-May to late June. The position includes a stipend of $500/week, housing at KSU, housing for any remote work, and $500 to offset travel to KSU. To apply, please send via email (1) a one-page statement describing your scientific interests, professional goals, and how this REU will support your goals, (2) your resume or cv, (3) unofficial transcripts, and (4) names and contact information (phone and email) of two professional references to Dr. Dave Costello (dcostel3@kent.edu). Applications are due March 4, 2024.The REU fellows will have the opportunity to participate in professional development and social events with a broad group of undergraduate researchers at KSU. The KSU Office of Student Research and the Department of Biological Sciences (BSCI) will coordinate activities and programing that will encourage networking, develop professional skills, and expose students to the diversity of active research on campus.If you have any questions, please contact Dave Costello (dcostel3@kent.edu).