Rebuilding coral reefs: success (and failure) 16 years after low‐cost, low‐tech restoration

Restoration Ecology, Год журнала: 2019, Номер 27(4), С. 862 - 869

Опубликована: Фев. 13, 2019

Calls for coral reef restoration are increasing amidst continued declines, yet we know little about long‐term outcomes and conditions that lead to successful recovery. Here, report on one of the longest monitoring studies following 16 years large‐scale, “low‐tech” experimental rehabilitation rubble fields created by chronic blast fishing in Komodo National Park, Indonesia. After had stopped, absence rehabilitation, hard cover remained 3% from 1999 2016, but treatments, increased 0% 2002 44.5% (±21.9% SD) 2016. Coral varied among sites treatments (ranging <5 >80% 2016) patterns may reflect current strength turbidity. Our results demonstrate low‐tech substrate stabilization can facilitate natural recruitment growth. We conclude relatively low‐cost methods deliver sustained should be incorporated more widely activities inform return investment.

Язык: Английский

---

Bottlenecks to coral recovery in the Seychelles

Coral Reefs, Год журнала: 2014, Номер 33(2), С. 449 - 461

Опубликована: Март 18, 2014

Язык: Английский

---

Multiple feedbacks and the prevalence of alternate stable states on coral reefs

Coral Reefs, Год журнала: 2016, Номер 35(3), С. 857 - 865

Опубликована: Апрель 16, 2016

Язык: Английский

---

Delayed coral recovery in a warming ocean

Global Change Biology, Год журнала: 2017, Номер 23(9), С. 3869 - 3881

Опубликована: Май 9, 2017

Abstract Climate change threatens coral reefs across the world. Intense bleaching has caused dramatic mortality in many tropical regions recent decades, but less obvious chronic effects of temperature and other stressors can be equally threatening to long‐term persistence diverse coral‐dominated reef systems. Coral persist if recovery rates equal or exceed average mortality. While from acute destructive events is often easy measure, estimating investigating factors that influence them requires commitment. Coastal development increasing regions, sea surface temperatures are also rising. The resulting stresses have predictable, adverse on recovery, lack consistent data sets prevented measurement how much actually changing. Using monitoring 47 spread over 10 degrees latitude Australia's Great Barrier Reef ( GBR ), we used a modified Gompertz equation estimate following disturbance. We compared two periods: 7 years before after an widespread heat stress event 2002. From 2003 2009, there were few disturbances region, allowing us attribute observed shortfall residual plus stressors. Compared with period 2002, fast‐growing Acroporidae “Other” slower growing hard corals slowed doubling time taken for modest levels recovery. If this persists, times will at when predicted become more frequent intense. Our study supports need management actions protect locally generated stresses, as well urgent global action mitigate climate change.

Язык: Английский

---

Density-associated recruitment mediates coral population dynamics on a coral reef

Coral Reefs, Год журнала: 2016, Номер 35(2), С. 543 - 553

Опубликована: Фев. 12, 2016

Язык: Английский

---