Corals Adapt to Global Warming

Chuck1318 writes "Articles in Nature and New Scientist indicate that corals are more adaptable to global warming than previously thought. Large areas of coral reefs had been devastated by bleaching due to the loss of the coral animals' algae partner, which is sensitive to changes in water temperature. Some scientists had projected that coral reefs would all be gone in 20 to 30 years. Now it is found that a more heat-resistant strain of algae is able to colonize the bleached coral, returning them to life."

Comments

Once again...

[cephyn]

...Nature finds a way. The only "downside" to this good news is that people may decide that the environment is very resilient and will care less about preservation and ecological awareness. Yes, earth can bounce back from a lot, but that doesn't mean we should try and stress it from all angles at all times!

Re:Once again...

[MammaMia]

Exactly what I thought... however, at the end of the article they have this to say:

"Corals are still threatened by factors such as water pollution and damage caused by fishing. But most of these factors are easier to reverse than climate change, Baker points out, especially if conservation efforts are spurred on by the idea that corals are not doomed by global warming.

"We may have more time than we thought to put policies in place," he says. "But this argues for us really getting on top of the factors that we can control."

So, there is still a lot we can do to protect the ones that are surviving, rather than force them to try and adapt to further damage.

Evolution works

[Marxist Hacker 42]

It always amazes me how many people believe in evolution, yet still believe major climate change must spell disaster. Almost as bad are the number of people who claim that God couldn't possibly have used evolution to create the species.

Re:Evolution works

[Marxist Hacker 42]

Darwin's old fashioned- Gould's theory of evolutionary spurts claims that a beneficial mutation can appear in as little as a single generation- though it takes multiple generations of that mutation being successfull in the environment to survive. With a significantly large population, minor mutations happen all the time; and by killing off competitive phenotypes, the new phenotype is more likely to survive after a rapid major climate change.

The key words are "life as we know it"- which doesn't exclude "life as we currently don't know it".

The larger the population, the greater the chance that a suitable phenotype will find a way to survive, just as in the article algae phenotype C dying off gave algae phenotype D a chance to colonize the newfound coral reefs. Phenotype D already existed; probably for many years; but as long as phenotype C survived, it could not take over.

Re:Evolution works

[Ayaress]

Its not so much single shocks that pose problems (although, yes, many people do claim so). Global warming will pose more problems for people than animals, I would suspect, since our technology effectively stops us from adapting genetically to changes in circumstance - we can harness fire faster than we can grow fur, invent the wheel faster than we can evolve faster running legs, and discover medicines faster than we can evolve immunities. So, when those technologies fail us, we're left even more defenseless than we were to begin with. Very hot summers in many first-world countries lead to power grid failures because of the excessive drain by air conditioning. When that happens, many people are hospitalized or even killed because of the heat. The reverse happens in cold winters. When diseases develop resistance to our medicines, we get epidemics.

Chalk up one more

[Jesrad]

Chalk up one more for these guys.