Details

Autor(en) / Beteiligte

• Morais, Juliano
• Tebbett, Sterling B.
• Morais, Renato A.
• Bellwood, David R.

Titel

Natural recovery of corals after severe disturbance

Ist Teil von

• Ecology letters, 2024-01, Vol.27 (1), p.e14332-n/a

Ort / Verlag

England: Blackwell Publishing Ltd

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Wiley Blackwell Single Titles

Beschreibungen/Notizen

• Ecosystem recovery from human‐induced disturbances, whether through natural processes or restoration, is occurring worldwide. Yet, recovery dynamics, and their implications for broader ecosystem management, remain unclear. We explored recovery dynamics using coral reefs as a case study. We tracked the fate of 809 individual coral recruits that settled after a severe bleaching event at Lizard Island, Great Barrier Reef. Recruited Acropora corals, first detected in 2020, grew to coral cover levels that were equivalent to global average coral cover within just 2 years. Furthermore, we found that just 11.5 Acropora recruits per square meter were sufficient to reach this cover within 2 years. However, wave exposure, growth form and colony density had a marked effect on recovery rates. Our results underscore the importance of considering natural recovery in management and restoration and highlight how lessons learnt from reef recovery can inform our understanding of recovery dynamics in high‐diversity climate‐disturbed ecosystems. Successive global bleaching events have led to a decline in coral cover. Tracking 809 individual coral recruits after a severe bleaching event, we found that Acropora corals settled after the bleaching event were able to achieved global average coral cover within 2 years, with just 11 recruits per square meter. Recovery rates were influenced by wave exposure, growth form and colony density, underscoring the need to consider natural recovery in reef management and restoration efforts.