Authors: A C Stier C S McKeon C W Osenberg J S Shima
Publish Date: 2010/07/31
Volume: 29, Issue: 4, Pages: 1019-1022
Abstract
Stony corals provide important structural habitat for microbes invertebrates and fishes which in some cases has led to the evolution of beneficial interactions that may protect corals from environmental factors such as thermal stress nutrient limitation competitors or predators For example guard crabs Trapezia spp protect corals Pocillopora sp from attacks by crownofthorn seastar and sedimentation Here a field experiment demonstrates that guard crabs Trapezia serenei also ameliorate the strong negative effects of the giant vermetid Dendropoma maximum on growth of Pocillopora This experiment highlights the importance of this crabcoral mutualism guard crabs facilitate the growth of corals in stressful environments eg where vermetids are abundant thereby preserving the ecological goods and services eg food and shelter that these corals may provide to other reefassociated speciesWe thank N Dallin and S Geange for field assistance the staff at the UC Berkeley GUMP station for logistical support and NSF OCE0242312 BIOCODE Moorea French American Cultural Exchange and the 3 Seas program for funding We additionally appreciate helpful comments provided by M Hay and two anonymous reviewers
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