Daniel Janzen (djanzen@sas.upenn.edu) is DiMaura Professor of Conservation Biology, University of Pennsylvania, Philadelphia, USA, and Technical Advisor to Área de Conservación Guanacaste (ACG). ACG is a 169,000-hectare government/private hybrid Conservation Area in northwestern Costa Rica. He is a tropical ecologist and biodiversity conservationist with 69 years of field experience and 588 scientific papers and books, all focused on the interactions of tropical animals and plants, and for the past 37 years, on their permanent in-situ conservation as well (http://janzen.sas.upenn.edu). He is a world level authority on the taxonomy and biology of tropical caterpillars, and is a member of the US and the Costa Rican National Academy of Sciences, and recipient of the Crafoord Prize (1984), the Kyoto Prize (1997), BBVA Prize (2012), and Blue Planet Prize (2014). He and his biologist wife Dr. Winnie Hallwachs (whallwac@sas.upenn.edu) are co-architects and co-constructors, along with hundreds of others, of ACG and of Costa Rica's INBio (Instituto Nacional de Biodiversidad), and of Costa Rica's Iniciativa Paz con la Naturaleza (IPN) (2006-2010), which morphed into Costa Rica Forever. He is President of the Guanacaste Dry Forest Conservation Fund (GDFCF; http://www.gdfcf.org), the US-based NGO for ACG. He and Hallwachs are currently focused on facilitating the International Barcode of Life (iBOL) efforts to DNA barcode all species of the world (BioScan) for their identification and species discovery by anyone anywhere at any time, and simultaneously, on facilitating Costa Rica's willingness to permanently conserve the 4% of the world's biodiversity that lives on 25% of Costa Rican national terrain and sea, and do it as a global example of sustainable non-damaging use of tropical wildland biodiversity by a bioliterate tropical country.
- Who We Are
- Team
- Board & Advisors
- Dan Janzen
- Winnie Hallwachs
- Frank Joyce
- Stephen Stroud
- Eric Palola
- Brad Zlotnick
- Rob Pringle
- Jessie Hill
- Scott Miller
- Alex Smith
- Sara O'Connor
- Jorge Cortés Núñez
- Rex Hamilton
- Mark Van Putten
- Alejandro Masís
- Patrick Goodwillie
- Anne Lambert
- Nicholas Lapham
- Jason W. Green
- Karen Baldwin
- Robert Puschendorf
- Béryl Lacoste Hamilton
- Our Supporters
- Financial Information
- Where We Work
- What We Support
- Ways to Help
- Latest News
- ACG: A Flagship Case Study in Natural Restoration
- Our Latest Newsletter is Out!
- Wrapping Up the 2021/22 Arribada Season
- Volcán Orosi, Then and Now
- Planting Seeds at Horizontes
- GDFCF Now Accepts Cryptocurrency!
- New Donation Will Help Costa Rica's BioAlfa Project
- Announcing a New Addition to ACG!
- Our Latest Newsletter is Out!
- Journal's Special Edition Focuses on Marine Research in ACG
- Save the Date!
- Thanks to You, We Met Our Crowdfunding Goal!
- Costa Rica "Punches Above Its Weight" at COP26
- We're Tracking Migratory Birds!
- "You Can Feel It in Your Bones"
- Our Rainy Season Newsletter and New Crowdfunding Campaign
- UCR Awards an Honorary Doctorate to Dr. Dan Janzen
- "ACG Shows the Way to the Present and the Future"
- Where Are We?
- Update on Estación Nancite Repairs
- Estación Pitilla's Latest Makeover
- 36 Brand New Moth Species in Costa Rica
- More Funding for Biodiversity Headed to Costa Rica?
- Nancite Repairs Are Underway
- News from ACG's Dry Season
- ARUs Make Their Debut in ACG
- Parque Santa Rosa Turns 50!
- Resources