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The crabs were known to inhabit the Ross Sea, south of New Zealand, but now they can be found south of South America
Originally posted by soficrow
reply to post by Byrd
Great link. Thanks.
...So the models were too conservative? Is that the message here?
Courting Controversy with a New View on Exotic Species
A number of biologists are challenging the long-held orthodoxy that alien species are inherently bad. In their contrarian view, many introduced species have proven valuable and useful and have increased the diversity and resiliency of native ecosystems.
When biologist Mark A. Davis talks about exotic species, he eventually comes to LTL, his shorthand for Learn to Love them. Flying in the face of the conventional wisdom among biologists that exotic species are harmful to native ecosystems, Davis and a small cohort of biologists espouse a heretical viewpoint: Exotic species are here to stay, so get used to them, and forget about ripping out the fast-spreading shrub, buckthorn, on a large scale or throwing Asian carp on the bank to die.
If the newcomers are only changing the ecosystem but “not causing significant harm,” then “altering one’s perspective is certainly much less costly than any other sort of management program,” Davis writes in his recently published book, Invasion Biology.
Originally posted by VforVendettea
Global warming is not man made.
The earth goes through cycles.
A warm phase is better for life on earth than a cold phase.
we want to be sure that we (humans) are not throwing things off kilter too fast and drastically, because we as individuals are not so good at making quick adaptations to such changes, but over time, it is natural for the ecosystem to evolve, slowly or otherwise.
It's called an if-then statement. If there not damage, so what? All it made me look like is someone who didn't read the article, not an idiot. You can have sound reasoning without ever having read and article 1.
Originally posted by wayno
reply to post by CynicalDrivel
My question is what is the King Crab killing off to run around in these waters? If it's not affecting other populations in a negative manner, it's another, "So what?" moment.
It is usually a good idea to read the linked articles before commenting.
That way you don't look the cynical fool.
Their impact on the environment is reported to be catastrophic. They are decimating the usual inhabitants of the area. Sooo .....there.
Originally posted by charlyv
This is a great scenario of what has been going on. Originally, in 1995, Readers Digest did an article on why King Crab was becoming so expensive, and their answer was that the crab fishermen were dropping (the new) large metal traps over their spawning grounds and crushing the spawn (in restrospect, pure BS) , and they said that that was why the catch totals were down.
That scenario is a theory, for all that they built a model to show it. The last mini-ice age did not happen during global warming in England, so that model doesn't back anything in reality...yet.
Originally posted by pez1975
I thought global warming was a hoax any ways climate change is real imo and with warming near the north pole it will cause the gulf stream to speed up, warmer water faster current and we will see a mini ice age in norther Europe in our life time im predicting..
I'd back off just a little further. They're often/mostly accurate generalizations. Some scientific models are thrown out due to not being accurate at all... Yes most models are sound, otherwise we'd have no jumping-off point for a lot of the work y'all do.
Originally posted by Byrd
The real answer (speaking as a scientist) is that models are never accurate predictions (though they're accurate generalizations.)