What secondary ecological consequence results from the eradication of keystone land crabs on Christmas Island?

Answer

Accumulation of leaf litter and suppression of native seedling growth.

Because land crabs are responsible for tilling the soil and cycling nutrients by consuming leaf litter, their removal leads to an accumulation of leaf litter, subsequent degradation of soil health, and suppression of native seedling growth, allowing weeds to thrive.

What secondary ecological consequence results from the eradication of keystone land crabs on Christmas Island?
speciesinsectantScientific nameyellow