Ecology, Climate Change and Related News

Conservation Science for a Healthy Planet

Climate Change and Nutrition—Polar Bears, Fish

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Land-based food not nutritionally sufficient for wild polar bears, according to new study

Posted: 13 Sep 2016 12:05 PM PDT

On average, a polar bear loses up to 30 percent of its total body mass while fasting during the open-water season. Although some scientists previously believed land-based foods could supplement the bears’ nutritional needs until the sea ice returns, a new study has revealed that access to terrestrial food is not sufficient to reduce the rate of body mass loss for fasting polar bears.

Study links altered brain chemistry, behavioral impairments in fish exposed to elevated carbon dioxide

Posted: 13 Sep 2016 09:52 AM PDT

Increased carbon dioxide concentrations alters brain chemistry that may lead to neurological impairment in some fish, a first-of-its-kind study demonstrates.

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