E.O. Wilson Biodiversity Foundation

Paula J. Ehrlich, President and CEO

Paula J. Ehrlich, DVM, PhD, is the President & CEO of the E.O. Wilson Biodiversity Foundation where she oversees the Foundation’s broad activities to foster a knowing stewardship of our world through biodiversity research and education initiatives that promote and inform worldwide protection of biodiversity. Paula leads the Half-Earth Project.

Walter Jetz, Scientific Chair

Walter Jetz, MSc, PhD is a Professor of Ecology and Evolutionary Biology and Adjunct Professor in the School of Forestry and the Environment at Yale University. Walter is the Scientific Chair of the E.O. Wilson Biodiversity Foundation and Lead PI for the Map of Life, overseeing execution of Yale and Map of Life project activities, including research and software engineering.

Chris Heltne, VP of Engagement

Chris develops and implements engagement activities designed to spread the Half-Earth goal. With more than 20 years of experience in marketing, communications and engagement, he is a strategic leader dedicated to making a difference in people’s lives through positive partnerships and creative, integrated outreach approaches.

Dennis Liu, VP of Education

Dennis runs the Half-Earth Project Educator Ambassador program and other educational initiatives. A nationally recognized expert in science education, Dennis has a passion for explaining diverse science to diverse audiences. He holds a PhD in Biology from the University of Oregon.

Julie Plowden, Chief Financial Officer

Julie manages all aspects of the E.O. Wilson Biodiversity Foundation’s financial functions to ensure careful stewardship of its resources. She also provides fractional financial and back-office services for venture impact investment firm SJF Ventures and clean energy investment firm Double Time Capital. She is a CPA with over 28 years of experience and is a graduate of Clemson University.

Nicole Hance, Business Manager

As Business Manager for the E.O. Wilson Biodiversity Foundation, Nicole assists with coordination of the activities of the Half-Earth Project research and educational programs, and leverages the Foundation’s business systems to streamline operating processes. She is dedicated to uniting her business skillset to support stewardship of the natural world.

Dennis Pamlin, Principal Advisor, Companies for a Half-Earth Future

Dennis Pamlin is an entrepreneur and founder of 21st Century Frontiers. With his background in engineering, industrial economy and marketing, Dennis is dedicated to working with the business community to incorporate Half-Earth compatible practices into their daily activities, their strategic planning and decision-making, and their shareholder valuations.

Amy Tidovsky, VP of Development

As Vice President of Development, Amy leads fundraising in support of the Foundation’s mission, strategies and projects. Amy has more than 20 years of experience in major and principal gifts fundraising, capital campaigns, board development, philanthropy training and consultation and non-profit leadership and management.

Amanda Briody, Master Ambassador

Amanda Briody taught secondary science in the Baltimore City Public Schools System for 10 years, prior to becoming a freelance educational resource developer. Amanda loves to share her work by designing and facilitating professional learning courses and workshops, and has developed and implemented NGSS-aligned curriculum for Biology, AP Biology, Environmental Science, Anatomy and Physiology, and Forensic Science courses.

Piotr Naskrecki, Half-Earth Chair

Dr. Piotr Naskrecki is an entomologist, conservation biologist, author, and photographer, based at the Museum of Comparative Zoology at Harvard University. He currently directs the E.O.Wilson Biodiversity Laboratory at Gorongosa NationalPark in Mozambique where he trains a new cadre of Mozambican biologists and conservationists, and helps rebuild the park, which suffered greatly during the recent civil war in that country.

Map of Life

Ajay Ranipeta

Ajay Ranipeta is the Lead Software Engineer at Map of Life. Ajay manages the development and delivery of biodiversity data products, working closely with the Vizzuality Science team. With nearly two decades of experience in the analysis and visualization of biodiversity products for non-profit and government organizations, Ajay provides key expertise in the success of the Half-Earth Map.

Scott Rinnan

Scott Rinnan is a Post-Doctoral Associate in Ecology & Evolutionary Biology at Yale University with a Ph.D. in Quantitative Ecology and Resource Management. Scott is Associate Research Scientist, project and team coordinator, and main point of contact for the Yale contingent for spacial biodiversity prioritization.

Gabriel Reygondeau

Gabriel Reygondeau is a Research Scientist in the Department of Ecology and Evolutionary Biology at Yale University, and a Research Associate in the Changing Ocean Research Unit (CORU) at the Institute for Ocean and Fisheries, University of British Columbia. Gabriel is an Associate Research Scientist in global marine biodiversity. His research in identifying and tracking the spatial distribution of marine organisms, communities and ecosystems is featured on the Half-Earth Map, and provides important insights in marine biodiversity at regional and global scales.

Yanina Sica

Yanina Sica is lead data manager at Map of Life. Yanina holds a PhD in biology, with a background in biodiversity conservation and modeling land-use change. She is working on modeling species distributions at high resolution to inform important areas for global biodiversity conservation as part of the Half-Earth Project.

Jennifer McGowan

Jennifer McGowan, PhD is a Research Scientist with the Department of Ecology and Evolutionary Biology at Yale University and The Nature Conservancy. Her research interest lies in developing tailored decision-support frameworks to guide conservation investments on the land, freshwater and sea. Jennifer is dedicated to help get decision-support tools into the planning processes that shape how the world prioritizes biodiversity. She brings her global conservation planning perspective and years of capacity-building expertise with governments and NGOs around the world to the Half-Earth Project.

Anna Schuerkmann

Anna Schuerkmann is program manager for the Map of Life.

John Wilshire

John Wilshire is a software engineer with the Map of Life. His areas of interest include plants, birds, ecology and evolution.

Kate Ingenloff

Kate Ingenloff is an incoming research associate with a background in biodiversity bioinformatics. She is a distributional ecologist with a strong interest in conservation science and the broader field of biodiversity informatics.

Charlie Marsh

Charlie Marsh is an associate research scientist in Ecology and Evolutionary Biology with Map of Life. His work is focused on spatial biodiversity modeling of global mammal diversity. Charlie also does biodiversity research in tropical forests in the Amazon, Borneo, Madagascar and the Comoros Islands.

Kevin Winner

Kevin Winner is a postdoctoral associate in Ecology and Evolutionary Biology. He is focused on spatial analytics with the Map of Life. His current research focuses on applying machine learning techniques to model global-scale patterns of biodiversity and species distribution.

Stefan Pinkert

Stefan Pinkert is a postdoctoral associate in Ecology and Evolutionary Biology. His focus is on the diversity, geographic distribution, and conservation of butterflies at a global scale.

Jussi Mäkinen

Jussi Mäkinen is an incoming postdoctoral associate in Ecology and Evolutionary Biology specializing in spatial ecology, statistics, and conservation. His focus is on species distribution modeling to aid in conserving species habitats.

Bort Edwards

Bort Edwards is an incoming research scientist focused on the diversity and conservation of plants at a global scale, and engaging the community of international experts in this area.

Aurore Maureaud

Aurore Maureaud is an incoming postdoctoral associate in Ecology and Evolutionary Biology. Her focus will be on geographic variations and conservation of marine biodiversity, in particular marine vertebrates.

Douglas Booher

Douglas Booher is an incoming postdoctoral associate in Ecology and Evolutionary Biology. His work will focus on global diversity, geographic distribution, and conservation of ants.

Emily Sandall

Emily Sandall is an incoming postdoctoral associate in Ecology and Evolutionary Biology. Her focus will be on functional morphonology and mechanics, biodiversity, and distributional traits of dragonflies and damselflies.


Craig Mills

Craig Mills is the CEO of Vizzuality. He provides overall project strategy and oversight for the mapping core of the Half-Earth project, which brings to life the species distribution data and analytics that will guide us towards the best opportunities for protecting the most species.

Susana Romao

Susana Romao is project manager, linking Vizzuality, Map of Life and the E.O. Wilson Biodiversity Foundation together to create a seamless process to advance the Half-Earth Project Map. From academia to nonprofits to Vizzuality, via bio-research and an MBA, her journey has sought out the places where she can create a positive impact.

Javier Abia

Javier is a Frontend Engineer at Vizzuality with a Masters in Archaeology and Heritage Management, and experience on GIS software. Javier builds the Half-Earth Maps that visualize species data and help us identify and virtually explore the places that contain the greatest diversity of life. He is the main point of contact for technical questions.

Estefanía Casal

Estefanía is a Designer at Vizzuality with a Masters in Art Direction. Estefanía designs the maps you can explore at, which aim to spark curiosity and engagement with the Half-Earth mission and make information easier to understand and take action with. Estafanía is the main point of contact for design.

Camellia Williams

Camellia is the Lead Writer at Vizzuality with a Masters in Conservation and Biodiversity. She writes stories about the Half-Earth Maps and helps raise awareness of the Half-Earth mission to conserve half the land and sea to safeguard to the bulk of biodiversity, including ourselves. Camellia is the lead contact for communications and stories.

Greta Carrete Vega

Greta is a Scientist at Vizzuality with a PhD in Conservation of Natural Resources. She provides scientific context to the biodiversity and conservation data and works with the designer and developer teams to visualize and code the Half-Earth Map. Greta is the primary contact for data questions, data management, and data updates.

Martin Dubuisson

Martin is a User Researcher at Vizzuality with a Masters in Sociocultural Anthropology. Martin talks to people about their experience with the Half-Earth Maps to identify opportunities for improving the way we communicate species data with the Half-Earth Maps. Martin is the main contact for user research and sprint planning.

Tamara Huete

Tamara Huete is a Scientist with a background in biology, oceanography, and microbiology. Her data analysis delivers transparent and honest scientific results and high-quality data for our projects. Working closely with her teammates, she helps us ensure data analysis is applied in purposeful ways that support positive change.