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3 items tagged "Ecosystems"

Results 1 - 3 of 3

Otters Help Ecosystem to Recover in California

Sea otters in California. © Martin Cathrae / Creative Commons

Sea otters in California. © Martin Cathrae / Creative Commons

Published on Thursday, 23 November 2017 00:42

The return of sea otters to an estuary on the central Californian coast has significantly improved the health of seagrass, new research has found.

Seagrass was deemed to be heading for extinction in this region before the otters returned. Scientists found that the animals triggered a chain reaction of events that boosted the water-dwelling plants.

Read more: Otters Help Ecosystem to Recover in California

 

Dark Forescasts on Ocean Acidification

The snail Clione limacina grows up to a length of 70-85 mm. © M. Boeer, Alfred Wegener Institute

The snail Clione limacina grows up to a length of 70-85 mm. © M. Boeer, Alfred Wegener Institute

Published on Thursday, 23 November 2017 00:42

Two new studies show that ocean acidification is negatively affecting species and ecosystems, albeit to varying degrees. Acidification may also amplify global warming, according to a third study.

The oceans absorb more than a quarter of anthropogenic carbon dioxide emitted to the atmosphere. They form a natural store without which the Earth would now be a good deal warmer. But their storage capacities are limited and the absorption of carbon dioxide results in their acidification.

Read more: Dark Forescasts on Ocean Acidification

 

Climate change pushing marine life towards the poles

iceland

In Iceland. © Christophe Lefebvre/AAMP

Published on Thursday, 23 November 2017 00:42

Warming oceans are causing marine species to change breeding times and shift homes with expected substantial consequences for the broader marine landscape, according to a new global study.

The three-year research project has shown widespread systemic shifts in measures such as distribution of species and phenology -- the timing of nature's calendar - on a scale comparable to or greater than those observed on land.

Read more: Climate change pushing marine life towards the poles

 
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