Galapagos tortoise migration routes may be changing due to climate change
Bastille-Rousseau says the team is surprised by the mismatch, stating “tortoise timing of migration fluctuated a lot among years, often by over two months. This indicates that migration for tortoises may not just be about foraging opportunities. For example, female tortoises have to make decisions related to nesting, and we still have a lot to learn about migration in giant tortoises.”
Fortunately, this sub-optimal timing may not yet have critical impact on tortoise health.
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Photo from Guillame Bastille-Rousseau.