Gretchen LeBuhn, PhD is a Professor of Biology at San Francisco State University and the Director of the Great Sunflower Project. She is an ecologist and conservation biologist whose work focuses on understanding the relationships between changing landscapes and biodiversity and using this information to promote conservation and sustainable management. Her current research focuses on the role of management promoting biodiversity in grasslands and forests of California, the role of green space in maintaining biodiversity and ecosystem services in cities and understanding the effects of climate change in montane meadow communities. Her work ranges from the development of mathematical models to citizen science to field studies. She was elected to the California Academy of Sciences in 2006 and was a lead author for the Intra-governmental Panel on Biodiversity and Ecosystem Services (IPBES) report on pollinators and pollination services.