Dahl’s Toad-headed Turtle
Saving endangered turtles in Colombia
Turtle Survival Alliance works with our principal partner in Colombia, Wildlife Conservation Society, to positively impact currently declining population trajectories of three Critically Endangered freshwater turtles across three primary ecoregions, as well as several other at-risk species. To do this we identify and translocate naturally-occurring nests, release hatchlings, construct artificial nesting beaches, perform and support field surveys and studies, perform genetic studies, acquire land, protect and restore habitat, protect nesting beaches and nesting female turtles, and engage local communities.
To secure a future for the Dahl’s Toad-headed Turtle, TSA with our partners Rainforest Trust and the Wildlife Conservation Society, purchased and now manages a large parcel of land featuring the most abundant and genetically diverse population of the Critically Endangered species in the country. Known as La Carranchina Natural Reserve, the land parcel is the first protected area for a turtle in Colombia.
In the village of Cotocá Arriba, in Colombia’s Sinú Valley Dry ecoregion, Turtle Survival Alliance partners with the community-based Tortugas del Sinú to stave off local extinction of the Magdalena River Turtle. The Critically Endangered species has experienced high egg mortality for several decades along this stretch of the Sinú due to hydroelectric dam flooding nesting beaches. The program for their preservation is based on four primary actions: 1) building artificial nesting beaches, protecting females during nesting season, and excluding cattle intrusion into nesting areas, 2) rescuing nests from flood-prone beaches, incubating eggs under controlled conditions, and releasing hatchlings, 3) population monitoring, and 4) environmental outreach and education. In 2021 we completed an education center and a tour route guiding visitors through the community of Cotocá Arriba; presenting key aspects of the program’s history, the river, and their role in protecting the Magdelana River Turtle.
Turtle Survival Alliance also partners with a local community along the Meta River of northeastern Colombia’s plains to stave off population declines for the second largest known population—and largest outside the Amazon region—of Giant South American River Turtle. Through Proyecto Vida Silvestre, we establish conservation agreements with the villages of
Nueva Antioquia and Santa Maria de La Virgen to set aside protected nesting beaches; recruit local villagers to conduct surveillance of the protected beaches to reduce collection of reproducing females and their eggs; monitor reproductive parameters during nesting season; and evaluate the effectiveness of the various conservation efforts.
This program has hatched and released over 140,000 turtles, reduced collection on protected beaches to almost zero, and reduced collection and consumption of the Critically Endangered species in nearby villages due to their awareness of and participation in the work.

Wildlife Conservation Society, Rainforest Trust, Tortugas del Sinú, Disney Conservation, Econbiba, Ecopetrol S.A., Fondation Segre, Fondo Accion, Fundación Omacha, Fundación Santo Domingo, People’s Trust for Endangered Species, Trillion Trees, and the communities of Cotocá Arriba, Flechas Sabanas, Nueva Antioquia, and Santa Maria de La Virgen.