Biology

By amplifying the personal experience of women in Jamaica who are living with HIV/AIDS, Nilukshi Chen ’23 hopes to explore the rampant fear and stigma surround the disease in the island nation. Chen interviewed four women for her senior thesis on the stigma surrounding HIV and sexually transmitted diseases (STDs) in Jamaica. Her thesis, titled “Sounding Subaltern Voices: Conversations with Jamaican Women Living with HIV/AIDS,” considers Spivak’s “Can the Subaltern Speak” to grapple with what it means give a voice to individuals who have been historically voiceless. The term “subaltern” refers to an individual or group who is excluded from…

When Frances Ostensen ’24 set sail aboard the SSV Robert C. Seamans this fall, she knew she was in for an adventure. Ostensen, a biology and Science in Society Program double major who spent the semester abroad with the Sea Education Association (SEA), learned more about the environment, human civilizations, and their endless connections than she ever expected. Her chosen program, called Sustainability in Pacific Island Communities and Ecosystems, began in Woods Hole, Mass. in October. After flying to the South Pacific in November, Ostensen set sail in a loop around Polynesia alongside seven other students, professors, and crew members…

While most universities value either pedagogy or scholarship, Associate Professor of Biology Joseph Coolon appreciates how—at Wesleyan—both are celebrated concurrently. "Wes is a truly unique place," he said. "Wesleyan faculty aim to be true scholar-teachers with each benefiting the other synergistically." Coolon, who joined the Wesleyan faculty in 2015 as an assistant professor of both biology and integrative sciences, has since co-authored 13 articles on ecological and evolutionary genomics in peer-reviewed publications such as G3: Genes | Genomes | Genetics; Developmental Biology; and Insect Molecular Biology. Ten of these papers were co-authored by both his graduate and undergraduate students. Together, they…

A team of researchers at Wesleyan has discovered new strains of bacteria—located on the University's campus—that may have the ability to break down microplastics and aid in the world's ongoing plastic waste crisis. Microplastics, which measure less than .20 of an inch, enter the ecosystem— and our bodies— largely through the abrasion of larger plastic pieces dumped into the environment. According to a study published in the Journal of Environmental Science and Technology, the average person consumes at least 50,000 particles of microplastic a year and inhales a similar quantity. "Plastic is typically classified as a non-biodegradable substance. However, some…

Professor of Biology Sonia Sultan recently co-authored an article titled “Transgenerational effects of parent plant competition on offspring development in contrasting conditions” with BA/MA student Robin Waterman ’20. The article, published in Ecology on Sept. 8, examines the relationship between parent plants and their offspring, especially how competition among such parent plants can alter the next generation. “Conditions during a parent’s lifetime can induce phenotypic changes in offspring, providing a potentially important source of variation in natural populations. Yet to date, biotic factors have seldom been tested as sources of transgenerational effects in plants,” reads an excerpt from the paper’s…

Janice Naegele, Alan M. Dachs Professor of Science, dean of the Natural Sciences and Mathematics Division, and professor of biology, is the co-author of three recent publications. Naegele’s work focuses on stem cells and finding new treatments for epilepsy and brain damage. Naegele’s articles include the following: “Induction of temporal lobe epilepsy in mice with pilocarpine,” published by BioProtocol in February 2020. “Development of electrophysiological and morphological properties of human embryonic stem cell-derived GABAergic interneurons at different times after transplantation into the mouse hippocampus,” published by PLoS One in August 2020. “Optogenetic interrogation of ChR2-expressing GABAergic interneurons after transplantation into…

The entrance to the Science Library in Exley Science Center houses a taxidermied peacock that has been restored by faculty and students in the biology department. The peacock, originally rediscovered in 2018 and put on exhibit in spring 2019, is part of a bird collection that was first displayed at the museum in Judd Hall and now belongs to the Wesleyan Museum of Natural History. The restoration team, which includes Professor of Biology Ann Campbell Burke, Yu Kai Tan BA/MA ’21, Andy Tan ’21, and Fletcher Levy ’23, recently updated the display to include new signage and fresh peacock feathers…

As part of the BIO 173: Global Change and Infectious Disease course, Professor Fred Cohan assigns students to write an essay persuading others to prevent future and mitigate present infectious diseases. If students submit their essay to a news outlet—and it's published—Cohan awards them with extra credit. As a result of this assignment, more than 25 students have had their work published in newspapers across the United States. Many of these essays cite and applaud the University's Keep Wes Safe campaign and its COVID-19 testing protocols. Cohan, professor of biology and Huffington Foundation Professor in the College of the Environment…

Wesleyan students, graduate students, and recent alumni will present research posters during the annual Geological Society of America meeting Oct. 26–30. The virtual event will allow for a five-minute presentation followed by a five-minute period to answer questions. Earth and environmental sciences graduate student Yu Kai Tan '20 and Andy (Dick Yee) Tan '21 will present their poster, titled "Freshwater Mussels in North America: Museum Collections and Pre-Industrial Biogeography," at 5:15 p.m. Oct. 29. Their advisors are Ann Burke, professor of biology, and Ellen Thomas, Harold T. Stearns Professor of Integrative Sciences, Smith Curator of Paleontology of the Joe Webb…

The 18th annual "Where on Earth Are We Going?" Symposium of the Robert F. Schumann Institute of the College of the Environment was held on Oct. 16 and 17 in a virtual format as part of Homecoming and Family Weekend events. (more…)

As organisms evolve over time, changes in size—both miniaturization and gigantism—are a major theme. In fish, which are the specialty of Barry Chernoff, the Robert Schumann Professor of Environmental Studies, Professor of Biology and of Earth & Environmental Sciences, miniaturization happens in many lineages, though it’s not very common. Evolutionary biology has long held that this miniaturization is often accompanied by developmental simplification or paedomorphisis (becoming sexually mature while appearing juvenile-like). Last March, just before the pandemic began, Chernoff and students in his Tropical Ecology course (ENVS/Bio/E&ES 306) took a trip to the University of Michigan in Ann Arbor, Mich.,…

Images depicting star collisions, atom movement in yeast ribosomes, and herbaceous plant root scans were the winning entries of the 2020 Wesleyan Scientific Imaging Contest. The Wesleyan Scientific Imaging Contest, held annually in August, recognizes student-submitted images—from experiments or simulations done with a Wesleyan faculty member—that are scientifically intriguing, as well as aesthetically pleasing. The contest is organized by the College of Integrative Sciences as part of the summer research program. The winners included Osama Elgabori '22, Carol Dalgarno '21, and Jolie Villegas '21. Elgabori's advisor is Brian Stewart, professor of physics; Dalgarno's advisor is Michael Weir, professor of biology;…

Senior Thesis: Chen ’23 Studies HIV/AIDS and STD Stigma in Jamaica

Exploring Sustainability, Building Community, and Fostering Connections: Frances Ostensen ’24 and Her SEA Semester

Coolon, Ponce-Hegenauer, Ramírez Conferred Tenure; 11 Others Promoted

Student Researchers Discover Potential “Plastic-Eating” Bacteria on Campus

Sultan, Waterman ’20 Co-Author Paper on Plant Reproduction

Naegele’s Neuroscience Research Published in Journals

Restored Peacock Displayed in Wesleyan’s Science Library

Students’ Essays on Infectious Disease Prevention, COVID-19 Published Nationwide

Students, Alumni to Make Presentations at Geological Society of America Meeting

Accelerating the Climate Revolution, Life on Venus Discussed at “Where on Earth Are We Going?” Symposium

Discovery by Chernoff and Students Challenges a Tenet of Evolutionary Biology

3 Students Win Scientific Imaging Contest