News tagged with food webs

Hungry salmon a problem for restoration efforts

(—Food webs needed by young salmon in the Columbia River basin are likely compromised in places, something that should be considered when prioritizing expensive restoration activities aimed at rebuilding endangered ...

dateNov 29, 2012 in Ecology
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Mass extinction study provides lessons for modern world

The Cretaceous Period of Earth history ended with a mass extinction that wiped out numerous species, most famously the dinosaurs. A new study now finds that the structure of North American ecosystems made the extinction worse ...

dateOct 29, 2012 in Ecology
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Droughts could cause collapse of food webs

(—Critically low water levels in many rivers could lead to the partial collapse of food webs that support aquatic life, according to a study co-authored by a University of Leeds researcher.

dateSep 11, 2012 in Environment
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How methane becomes fish food

Methane is an organic carbon compound containing the fundamental building block of nearly all living material: carbon. It provides an important source of energy and nutrients for bacteria. Methane is produced in oxygen-free ...

dateAug 27, 2012 in Earth Sciences
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