Asociacion ANAI: A non-profit volunteer organization: includes list of ecological conservation projects, ecotours; nature photos.
Braulio Carrillo-La Selva Region: Detailed geographic and ecological information on this area of the country, including indigenous species, environmental threats, bibliography, and photos.
Centre for Land Use and Water Resources Research: Project to study socio-economic impacts of land use and hydrological change in tropical montane cloud forest areas of the Lake Arenal watershed. Includes a list of the collaborating institutions and a photo gallery.
Charral Project: Report on academic research project on rainforest establishment in abandoned pastures. Discusses birds, plants, and soil.
Costa Rica Long Term Ecological Research: A network of institutions and field research stations, with bibliography, descriptions and contact info.
Costa Rica Volcanoes and Volcanics: USGS descriptions and location map, eruption histories.
Costa Rica Wildlife: Information about various rainforest animals, earth science and literature.
Diptera of Costa Rica: A project organized for collecting, mounting and identification of specimens of flies and mosquitoes. Includes information about the staff and facilities, sampling sites, and publications.
El Bosque Nuevo: Organization using agro-forestry to preserve tropical rainforests. Describes project of sustainably harvesting butterfly pupae for sale to conservatories with pictures and descriptions of many tropical butterfly species.
Field Guide to the Amphibians and Reptiles of Las Cruces: Photos and descriptions to aid in identification of the regional species.
Finca Loma Linda: San Vito, Coto Brus, Puntarenas. Organization offers research, internships and community assistance with conservation, ecology, marketing and sustainable agricultural development.
La Gamba Field Station: Research, teaching and education institution located on the edge of the Piedras Blancas National Park. Lists programs and publications, with information on visiting or donating. [English/German]
Lankester Botanical Garden: Part of the University of Costa Rica, they describe their collections, hours and admission fees, and research and collecting projects.
Las Nubes Centre for Neotropical Conservation and Research: A joint conservation and research project of York University and the Tropical Science Center.Located on the Pacific slope of the Talamanca Mountain Range
Procuenca San Juan: Multi-organizational workshop on the climate and socio-economic conditions of the San Juan River Basin. Includes field investigations and technical reports with maps.
Project ALAS Arthropods of La Selva: A large scale inventory of arthropod diversity in the lowland tropical rainforest of La Selva. Includes a history and description of the laboratory facilities, information management and research publications.
PROMAR: Works for the conservation of the marine ecosystems of Costa Rica through environmental education, research and influence in management policies.
Proyecto Campanario: Biological conservation and research facilities
SciELO - Scientific Electronic Library Online: Electronic virtual library covering a selected collection of Costa Rican scientific journals. Includes browsing tools for serials and articles. [English/Spanish/Portuguese]
The Cloudbridge Project: A private nature reserve created to preserve biodiversity in the tropical cloud forest adjoining the Chirripó Pacifico river on the slopes of Mt. Chirripó. Describes site ecology and reforestation project.
Tropical Sierra Foundation: Dedicated to preserving, reforesting, and establishing habitats for endangered species in the tropics. Information about current projects, news, membership and volunteering.
Volcanoes Guanacaste Range System: Brief descriptions of each of the volcanoes in the Guanacaste Range.
Volcanoes of Costa Rica: General discussion of volcanic activity in the country, followed by a list of major structures, with photos and descriptions.
World Wildlife Photo Gallery: Photos of birds, animals, and landscapes.