Wednesday, 14 August 2013

Extinctions of large animals sever the Earth's 'nutrient arteries'

Extinctions of large animals sever the Earth's 'nutrient arteries'
  A new study has demonstrated that large animals have acted as carriers of key nutrients to plants and animals over thousands of years and on continental scales.
 The paper in the advance online publication of the journal Nature Geoscience explains that vital nutrients are contained in the dung and bodies of big animals. As they eat and move more than small animals, they have a particularly important role in transporting nutrients into areas where the soil is otherwise infertile.

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