Holly Ewing_field

Christian A. Johnson Professor of Interdisciplinary Studies

Endowed by the Christian A. Johnson Foundation, the Christian A. Johnson Professorship recognizes the central place interdisciplinary teaching, learning, and scholarship have in a Bates education and honors a faculty member whose interdisciplinary work has enriched the intellectual life of the college.

Holly Ewing, Professor of Environmental Studies

Professor Ewing is a tireless teacher-scholar whose courses provide the core of the scientific concentrations in the Program in Environmental Studies. A soil scientist, she teaches such courses as Scientific Approaches to Environmental Issues; Water and Watersheds; Soils; and GIS across the Curriculum. She uses Bates' location in Maine to great advantage in field courses and research that challenge her students to study topics from air quality at Acadia National Park to our local drinking water from Lake Auburn. Her research, in which she engages students as collaborators, investigates the interconnections among atmospheric, terrestrial, and aquatic ecosystems. She has served as chair of the Program in Environmental Studies for many years, and, with Professor Rebecca Herzig, designed a new process for tenure and promotion that recognizes the role of interdisciplinary work in personnel assessments and creates a more equitable procedure for tenure and promotion review. She is also a member of the Program in Gender and Sexuality Studies.

Cyanobacteria as biological drivers of Lake Nitrogen and Phosphorus Cycling

Cyanobacteria as biological drivers of Lake Nitrogen and Phosphorus Cycling

Spatial and Temporal Variability in Recruitment of the Cyanobacterium Gloeotrichia echinulata in an Oligotrophic Lake

Spatial and Temporal Variability in Recruitment of the Cyanobacterium Gloeotrichia echinulata in an Oligotrophic Lake

Predicting the effects of climate change on freshwater cyanobacterial blooms requires consideration of the complete cyanobacterial life cycle

Predicting the effects of climate change on freshwater cyanobacterial blooms requires consideration of the complete cyanobacterial life cycle

“New” cyanobacterial blooms are not new: two centuries of lake production are related to ice cover and land use

“New” cyanobacterial blooms are not new: two centuries of lake production are related to ice cover and land use

Chemical, biological, and trophic status of temperate lakes can be strongly influenced by the presence of late-glacial marine sediments

Chemical, biological, and trophic status of temperate lakes can be strongly influenced by the presence of late-glacial marine sediments

Collaborative Understanding of Cyanobacteria in Lake Ecosystems

Collaborative Understanding of Cyanobacteria in Lake Ecosystems