News tagged with calcium levels

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Feeding caterpillars make leaves shine

When a plant is attacked by herbivores, this triggers a number of physiological responses in the plant. Calcium ions are important messengers for the processing of wound signals in plant cells. They regulate signal transduction ...

dateJun 04, 2015 in Biotechnology
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Calcium loss turning lakes to 'jelly'

New research on a number of Canadian lakes show that historical acid deposits as a result of industry have greatly reduced calcium levels in the water - dramatically impacting populations of calcium-rich plankton such as ...

dateNov 18, 2014 in Ecology
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Sea urchins cope with rising CO2 levels

( —Increasing levels of carbon dioxide (CO2) in the atmosphere are causing oceans to become more acidic. This situation poses a threat to marine organisms with shells made of calcium carbonate, because acid will ...

dateApr 09, 2013 in Plants & Animals report
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High-CO2 world threatens seabed life

Environmental change is transforming many parts of the north-east Atlantic seabed, and according to a newly-published paper this will almost certainly get worse in the coming decades.

dateJun 20, 2014 in Environment
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Effect of ocean acidification may not be so dire

( —Marine scientists have long understood the detrimental effect of fossil fuel emissions on marine ecosystems. But a group led by a UC Santa Barbara professor has found a point of resilience in a microscopic shelled ...

dateApr 15, 2013 in Environment
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