For the first time in over 180 years, 158 juvenile giant tortoises have returned to walk on Floreana Island, in the Galápagos Archipelago. The release marks a milestone in the process of environmental recovery of the territory.
The species, identified as Chelonoidis niger niger, had become extinct on the island in the mid-19th century. Since then, the absence of this key herbivore deeply altered the local ecological dynamics.
Now, their return inaugurates a new stage of the Floreana Ecological Restoration Project. Additionally, it represents a turning point for both the biodiversity and the community inhabiting this insular territory.
An initiative with local leadership and scientific support
With about 160 inhabitants, Floreana promotes a restoration model centered on the community. Therefore, the project integrates conservation and livelihoods, combining tourism, fishing, and agriculture under a sustainable vision.
The initiative is led by the Galápagos National Park Directorate and the Biosecurity and Quarantine Regulation and Control Agency for Galápagos. Additionally, Jocotoco Foundation, Charles Darwin Foundation, Island Conservation, and Galápagos Conservancy participate.
Moreover, the community participated in workshops, monitoring, and biosecurity measures. This commitment has already led to achievements such as the rediscovery of the Pachay, Laterallus spilonota, a bird not recorded on the island since the time of Charles Darwin.
Recovering a lost lineage from Wolf Volcano
The species’ return was made possible thanks to genetic studies initiated in the 2000s. Research detected individuals with Floreana ancestry on Wolf Volcano, north of Isabela Island.
These specimens were descendants of tortoises historically relocated by whalers. From them, a controlled breeding program was developed to recover a lineage as close as possible to the original.
Consequently, the released tortoises are the result of decades of coordinated scientific work. This process consolidates a solid genetic base to restore lost ecological functions.
What is the environmental impact of this release?
The giant tortoise is a key species in insular ecosystems. Therefore, its presence promotes seed dispersal and the regeneration of native plants.
Additionally, by feeding and moving, it opens natural pathways and creates microhabitats, such as wallows, which benefit insects, reptiles, and birds. In this way, it reactivates ecological processes interrupted for nearly two centuries.
Furthermore, the restoration of terrestrial habitats strengthens the land-sea connection. Seabirds find better nesting areas and, by providing nutrients to the soil, also enrich coastal ecosystems and fisheries.
A global model of restoration
When the project reaches its maturity, Floreana will become the largest ecological restoration process executed in Galápagos. In this sense, it will serve as an international reference for degraded insular territories.
Additionally, future reintroductions are already being evaluated, such as the Floreana mockingbird, the racer snake, and the vegetarian finch. Each step aims to rebuild a comprehensive ecological network.
Thus, the return of the tortoises not only repairs a historical absence. It also demonstrates that cooperation between science and community can bring life back to ecosystems that seemed lost.
