Island rewilding with giant tortoises in an era of climate change

A conceptual framework for tortoise rewilding in the face of climate change is proposed, highlighting its potential as a leading example of island rewilding. The study focuses on three key ecological functions—herbivory, seed dispersal, and nutrient cycling—mediated by giant tortoises, particularly the Aldabra giant tortoise (Aldabrachelys gigantea). It explores how climate change may impact these functions and suggests mitigation strategies, such as artificial shade sites and water holes, to sustain ecosystem services on a landscape scale. The framework is illustrated using examples from both wild and rewilded populations in the Western Indian Ocean, offering practical guidance for future conservation efforts.

Falcón, W., & Hansen, D. M. (2018). Island rewilding with giant tortoises in an era of climate change. Philosophical Transactions of the Royal Society B: Biological Sciences, 373(1761), 20170442. https://doi.org/10.1098/rstb.2017.0442