News tagged with savannas

Out of Africa and Into the American Midwest

Grasses bend in the wind, their golden tips tracing arcs across fields that stretch toward the horizon. Sunwashed by a fading evening light, these reedy ballet dancers are central figures in savanna, an ecosystem ...

Jan 09, 2012 3 / 5 (2) 0

Forest and savanna can switch quickly

(PhysOrg.com) -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes ...

Oct 14, 2011 4.4 / 5 (8) 1 | with audio podcast report
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