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Corals are struggling, but they're too abundant to go extinct, study says


Corals are struggling, but they’re too abundant to go extinct, study says
by Malavika Vyawahare on 2 March 2021
A study has found that most reef-building coral species are not in imminent danger of being wiped off the planet because they are abundant and occupy vast ranges.
It looked at 318 species across 900 reefs in the Pacific Ocean, from Indonesia to French Polynesia, and found half a trillion coral colonies in the region.
The study authors are calling for a revision of the IUCN Red List, according to which a third of all reef-building corals face some degree of extinction risk.
At the same time the new research underlines the fact that local extinctions and the loss of ecological function are real and present threats. ....

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Half a trillion corals: world-first coral count prompts rethink of extinction risks


Credit: Andreas Dietzel.
For the first time, scientists have assessed how many corals there are in the Pacific Ocean and evaluated their risk of extinction.
While the answer to how many coral species are there? is Googleable , until now scientists didn t know how many individual coral colonies there are in the world.
In the Pacific, we estimate there are roughly half a trillion corals, said the study lead author, Dr Andy Dietzel from the ARC Centre of Excellence for Coral Reef Studies at James Cook University (Coral CoE at JCU).
This is about the same number of trees in the Amazon, or birds in the world. ....

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