Land and sea species differ in climate change response: study

[Trakar]

Land and sea species differ in climate change response: study

Land and sea species differ in climate change response: study

(Phys.org) -- Marine and terrestrial species will likely differ in their responses to climate warming, new research by Simon Fraser University and Australia’s University of Tasmania has found.

...“We think a combination of things is going on,” says Amanda Bates, co-author from the University of Tasmania’s Institute of Marine and Antarctic Studies (IMAS). “A species niche isn’t just set by temperature. On land where water is key, species may be hindered more by dryness rather than being too hot at this range boundary.

“Second, it could be that rare heat waves are actually setting boundaries on where species can live. Finally, as Charles Darwin pointed out over 150 years ago, there may be more species and much more ecological competition toward the tropics, which may be enough to exclude species from living in the warmer end of their potential real estate.”

...The team concludes by pointing out that while chaotic species combinations may be bad news for animals on land, entire assemblages of species are likely to shift in the ocean, meaning researchers can make better predictions about how marine species redistribute in the face of climate change.

So for land animals it is going to be more about where there's enough water to drink and grow the plants to eat (or to feed the herbivores they eat), whereas for marine life its about pH, pretty specific temperature ranges and where the food is. Seems reasonable.

 

[Old Rocks]

Already here in the Pacific Northwest we are seeing the affects on the oysters.

Local News | Acidity in ocean killed NW oysters, new study says | Seattle Times Newspaper

Here's why: Since 2005, wild oysters along the Washington coast and at the hatchery had been dying inexplicably in their larval stages. At first the suspect was a bacterial disease, but hatchery workers soon noticed that the die-offs only occurred after high winds drew water from the ocean deep.

Unlike the complex mechanics of climate change, ocean acidification is just basic chemistry. Scientists long had predicted that as carbon dioxide from fossil fuels gets taken up by the seas, ocean waters — typically slightly alkaline — would slide closer to the acidic side of the pH scale. They just expected it would take 50 to 100 years.

But Feely and other top researchers in 2007 and 2008 had discovered that the pH of marine waters along the West Coast had dropped decades earlier than expected.

 

[Trakar]

Already here in the Pacific Northwest we are seeing the affects on the oysters.

Local News | Acidity in ocean killed NW oysters, new study says | Seattle Times Newspaper

Here's why: Since 2005, wild oysters along the Washington coast and at the hatchery had been dying inexplicably in their larval stages. At first the suspect was a bacterial disease, but hatchery workers soon noticed that the die-offs only occurred after high winds drew water from the ocean deep.

Unlike the complex mechanics of climate change, ocean acidification is just basic chemistry. Scientists long had predicted that as carbon dioxide from fossil fuels gets taken up by the seas, ocean waters — typically slightly alkaline — would slide closer to the acidic side of the pH scale. They just expected it would take 50 to 100 years.

But Feely and other top researchers in 2007 and 2008 had discovered that the pH of marine waters along the West Coast had dropped decades earlier than expected.

That is one of the problems with many of the geoengineering schemes, high CO2 levels create other problems in addition to their "greenhouse" effects.

 

[bobgnote]

Carbonic acid vids are all over YouTube, but a surprising dearth of this vital media is evident, all over the internet. I hit search last week, and first was my own post, at another forum. Second was the report of the Pacific NW oyster die-off.

But the accelerating carbonic acid buildup threatens the oceanic food chain. The acid has an affinity, for the O2-rich, colder waters, which are killing the oysters AND they are responsible, for the big plankton blooms, at the base of the entire sub-Alaskan food chain.

No wonder the cod aren't coming back, in a hurry. If the oceanic food chain fails, that on land is liable to go down in some way. And then the cyclonic storms will get rough. So re-green, now!