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Your tax-deductible annual membership will have a direct impact on helping students and researchers understand the critical role of the tropics in maintaining life on earth.

Students like Ryan Adasme, who participate in our field courses and learn to conduct vital research in the tropics and work alongside researchers who are investigating a broad array of scientific questions – including such critical issues as the relationship between tropical forests and global climate change and the decline of amphibians, avifauna, and other species in the tropics.

Today, more than 10,000 OTS alumni are now working in leadership roles in governments, universities, and research institutions, as well as in grassroots, regional, and international environmental organizations.

Show your support for tropical education, research, and conservation by joining the OTS community of friends today. Members who give $50 will receive an OTS Natural Wonders calendar and members who give $100 receive their choice of the calendar or OTS AMIGO t-shirt. All members will receive OTS’ newsletter View from the Canopy and our monthly e-newsletter, E-Canopy.

Donate Online
  • Donate by phone:
    • United States: 919-684-5774
    • Costa Rica: (506)2524-0607
  • Donate by mail:

North American Office

Fax:(919) 684-5661
Phone: (919) 684-5774
Organization for Tropical Studies
Box 90632, Durham, North Carolina 27708-0632

Costa Rican Office

Fax: (506) 2524-0607
Phone: (506) 2524-0608
Organization for Tropical Studies
Apartado 676-2050 San Pedro, Costa Rica

Employer Matching Gifts

Double, or even triple, your membership to OTS by having your employer match your membership donation!

Send us your matching form along with your gift and we’ll take care of the rest!

Appreciated Securities

Donating a gift of appreciated securities is easy and can provide you with significant tax benefits. Please contact the OTS Development Office at 919-684-5774 for more information.

Our process for transferring gifts of stock has changed. Even if you have donated securities to OTS previously, please have your broker contact the OTS Development Office at 919-684-5774 BEFORE making the transfer. A quick phone call from your broker to verify the current instructions will prevent any transfer problems and ensure your gift is directed to OTS.

Ryan Adasme

I would not say that my OTS experience simply influenced my career choice, it changed my life. In my summer 2004 experience at La Selva I fell in love with tropical field biology and realized that this is the career for me. In my South Africa semester program I gained further experience in field biology and broadened my horizons through the diverse biological and cultural exposure. As a direct result of the international experience gained from the two OTS programs, I was hired as a research assistant by a botanist at NC State and studied fire ecology in Brazil for a summer. My Costa Rica and Brazil research have both yielded publishable results, with plans to submit to the journals Ecology and Copeia. Furthermore, my mentor from the REU program, Craig Guyer, is a top candidate to be my Ph.D. adviser at Auburn University. If I had not had the opportunity to work with him closely through OTS, I probably would not be as certain about my graduate school future and I probably would not be working with such a world renowned herpetologist. ”

Last Updated ( 03/27/15 )
Organization for Tropical Studies
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