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Project 2.5i.3 - Resilience to climate change

Project Leaders and Host Organisations

Professor Terry Hughes, James Cook University
Dr Julian Caley, Australian Institute of Marine Science

Project Description and Objectives

For detailed descriptions of the outputs for this project for Year 4 (2009/2010) of the MTSRF Research Programme, see the Annual Research Plan.

The project will examine the resilience of coral and reef fish assemblages to climate change and investigate how impacts of climate change will interact with other human induced stresses to influence the resilience of coral reef ecosystems. The project will utilise existing strengths in the population genetics of corals and their algal endosymbionts, in the population, community and ecosystem ecology of corals and reef fishes, and in mechanistic modelling. A key outcome will be an integrated, multi-level, assessment of climate change effects on GBR corals and fishes. Key components of the life history, community ecology and functional capacity of corals and reef fishes will be targeted to determine how individuals, populations and communities will respond to climate change, and to assess the feedback that these impacts will have on the resilience of coral reef ecosystems within the GBRMP.

Key Objectives:

Resilience of coral assemblages to climate change:

  • Estimate genetic connectivity among GBR populations of coral and their algal endosymbionts to determine their potential for replenishment following disturbances associated with climate change.

  • Identify mechanisms of adaptation available to local coral populations to understand their potential for adaptation to climate change.

  • Identify links between thermal anomalies and coral disease dynamics to predict the response of coral assemblages to ocean warming associated with climate change.

Resilience of fish assemblages to climate change:

  • Quantify current levels of herbivory by reef fishes on the GBR and evaluate the extent to which reefs across the GBR shelf are vulnerable to ecosystem phase-shifts and domination by macroalgae as a result of climate change.

  • Identify critical thresholds in macro-algal phase shifts and evaluate alternate management strategies in order to limit the impacts of climate change on the ability of fish assemblages to prevent ecosystem phase-shifts on coral reefs.

  • Evaluate the long term recovery and resilience of reef fish communities to climate change induced habitat degradation.

Further Information

Dr David Souter
GBR Program Research Manager
Reef and Rainforest Research Centre Limited
Tel: (07) 4781 6013


Major Project Outputs

The Annual Research Plans, or ARPs, outline the specific tasks, products, budgets and staff for each research project within each of the Research Themes and Programs of the MTSRF.  The ARPs also outline the key deliverables, or 'project milestones' (e.g. major reports, journal articles, communications products) to be achieved.

An ARP is developed for each operating year of the MTSRF (2006-2010).

Details of this and previous years' outputs from this project are included in each of the Annual Research Plans

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