The Aldabra giant tortoise (Aldabrachelys gigantea) occurs naturally in the wild on Seychelles’ Aldabra Atoll. Giant tortoises were once more widespread on islands in the Indian Ocean, but that history should not be confused with this species’ present natural range.
Engineers of the atoll
By grazing, trampling and moving seeds, tortoises help shape the vegetation of Aldabra. Their feeding activity contributes to open tortoise turf and other habitat patterns, making them part of the atoll’s ecological processes rather than simply a long-lived visitor attraction.
Recovery and remaining risks
The population recovered from heavy historic exploitation, but its concentration on islands still creates vulnerability. Sea-level rise, invasive species, disease risk and habitat change require continued biosecurity and monitoring. The species is assessed as Vulnerable, so it should not be described casually as either secure everywhere or as an endangered beach animal.
Respect the wildlife
Never feed, ride or crowd a tortoise. Slow movement does not make a tortoise tame, and close encounters can disrupt feeding, nesting and natural behavior.
Conservation beyond a number
Exact population totals, ages and nesting intervals can change with surveys and differ among locations. The most useful conservation message is to protect the atoll ecosystem, prevent invasive species and support the institutions responsible for long-term management.
