The saddle-backed Rodrigues giant tortoise was described by early colonists as a docile, gentle browser, with a tendency to gather in large herds, especially in the evening.

This we have always observed of them; and this mystery seems the more difficult to be comprehended, for that these creatures are incapable to defend themselves..." (Leguat, 1707)[5] It has subsequently been discovered that the browsing herds of giant tortoises filled an essential role in the ecosystem of Rodrigues and the regeneration of its forests.

Among other roles, the giant tortoises ensured the dispersal and germination of tree seeds, as well as "terraforming" the island by maintaining forest clearings and pools.

In recognition of this fact, measures have been undertaken to introduce replacement species, in the form of similar giant tortoises from other parts of the world, to assist in the rebuilding of Rodrigues' devastated environment.

Tentative conservation efforts began in the 18th century, with the French Governor Mahé de Labourdonnais attempting to legislate against the "tortoise plundering" of Rodrigues.