Redundancy and Response Diversity of Functional Groups:Implications for the Resilience of Coral Reefs

<正> To improve coral reef management,a deeper understanding of biodiversity acrossscales in the context of functional groups is required.The focus of this paper is onthe role of diversity within functional groups in securing important ecsystemprocesses that contribute to the resilience of coral-dominated reef states.Twoimportant components of species biodiversity that confer ecosystem resilience areanalyzed:redundancy and the diversity of responses within functional groups tochange.Three critical functional groups are used to illustrate the interaction betweenthese two components and their role in coral reef resilience:zooxanthellae(symbiotic micro algae in reef-building corals),reef-building corals,and herbivores.The paper further examines the consequences of undermining functional redun-dancy and response diversity and addresses strategies to secure ecologicalprocesses that are critical for coral reef resilience.