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Decline and recovery of coral reefs linked to 700 years of human and environmental activity
Date:10/3/2011

STONY BROOK, NY and STANFORD, Calif., Oct. 3, 2011Changing human activities coupled with a dynamic environment over the past few centuries have caused fluctuating periods of decline and recovery of corals reefs in the Hawaiian Islands, according to a study sponsored in part by the Institute for Ocean Conservation Science at Stony Brook University. Using the reefs and island societies as a model social-ecological system, a team of scientists reconstructed 700 years of human-environment interactions in two different regions of the Hawaiian archipelago to identify the key factors that contributed to degradation or recovery of coral reefs.

"Historical reconstruction reveals recovery in Hawaiian coral reefs," which was published online today in the journal PLoS ONE, concludes that historical changes in human societies and their relationships with coral reef ecosystems can explain whether these ecosystems exhibit patterns of sustainability and resilience or decline and degradation. Dr. John N. Kittinger, lead author of the study, was a National Science Foundation Graduate Fellow in the Department of Geography at the University of Hawai'i at Mānoa when the reconstruction was conducted. He is now an Early Career Social Science Fellow at Stanford University's Center for Ocean Solutions.

"Our reconstructed ecological changes included an intensive review and assessment of archaeological deposits, historical observations of ecosystem conditions, and modern ecological and fishery data," said Dr. Kittinger. "Using these data sets, our findings demonstrate that we can't always view environmental degradation solely through the lens of simplistic cause-consequence relationships. In the historical recovery periods we uncovered, we found that human agency is partly responsible for environmental recovery, which shows that not all human-environment interactions lead to irreversible deleterious outcomes and that degraded ecosystems may still retain t
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Contact: Cindy Yeast
cdyeast@earthlink.net
720-542-9455
Stony Brook University
Source:Eurekalert  

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