Return to Faculty


Timothy W. Leslie

Assistant Professor of Biology

B.S., Pennsylvania State UniversityPh.D., Pennsylvania State University


Timothy Leslie joined the Biology Department at Long Island University as an assistant professor in 2008. He received a Ph.D. in entomology from the Pennsylvania State University and studied sustainable crop protection at Wageningen University in the Netherlands. Dr. Leslie’s research examines how human-modified landscapes influence the spatial and temporal dynamics of insect populations and communities. He is especially interested in research that encompasses entomology, agroecology and biological conservation. Since 2001, Dr. Leslie has studied the effects of genetically modified crops on both pest and beneficial insects. His work has been published widely in top-tier scientific journals. In recent years, he has been investigating conservation strategies for insect pollinators and biocontrol agents at sites of urban agriculture throughout Brooklyn. Dr. Leslie is also participating in a USDA-funded project developing management practices that support native bees and maximize pollination in mid-Atlantic tree fruit. He is a member of the Entomological Society of America and the Ecological Society of America, and serves as a reviewer for several entomological journals. Dr. Leslie teaches courses in ecology, biology and scientific communication, and is an adviser for students in the Project QUEST program.


Entomology, Population and Community Ecology, Agroecology, Biodiversity


  • Co-author, “Conventional and seed-based insect management strategies similarly influence non-target coleopteran communities in maize,” published in Environmental Entomology
  • Co-author, “Carabidae population dynamics and temporal partitioning: response to coupled neonicotinoid-transgenic technologies,” published in Environmental Entomology
  • Co-author, “Integrating chemical and biological control of European corn borer in bell pepper,” published in the Journal of Economic Entomology
  • Co-author, “Population dynamics of cereal aphids: influence of a shared predator and weather,” published in Agricultural and Forest Entomology
  • Co-author, “Transgenes sustain epigeal insect biodiversity in diversified vegetable farm systems,” published in Environmental Entomology
  • Co-author, “Toxic and behavioral effects to Carabidae of seed treatments used on Cry 3Bb1- and Cry1Ab/c-protected corn,” published in Environmental Entomology

Professional Affiliations

  • Member, Ecological Society of America
  • Member, Entomological Society of America