Abstract
Running speed in ghost crabs has been reported to be a function of carapace width: Running speeds in Ocypode ceratophthalma increase up to 20-mm carapace width, after which they start decreasing. There is no evidence for a terminal ecdysis in ghost crabs, suggesting that moulting and growth continue beyond sexual maturity. Ghost crabs also produce sound by knocking the major cheliped onto the sand. Although it is recognized that burrows can protect ghost crabs against some types of predators, it is equally plausible that they present visual cues for other predators, such as reptiles and mammals. Trophic ecology Ghost crabs display remarkable trophic plasticity, occupying a range of trophic levels, obtaining food through a variety of strategies, and consuming a wide diversity of prey items. Several of the canids take ghost crabs on the beach surface but will also attempt to dig them out of their burrows.
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