Sentences with phrase «shifting tundra vegetation»

«Shifting tundra vegetation spells change for arctic animals.»

Not exact matches

Grazing by reindeer often results in a vegetation shift from tundra dominated by dwarf birch, crowberry and willows, to a meadow - like vegetation dominated by grasses, sedges and forbs.

In the Arctic, the tipping points identified in the new report, published on Friday, include: growth in vegetation on tundra, which replaces reflective snow and ice with darker vegetation, thus absorbing more heat; higher releases of methane, a potent greenhouse gas, from the tundra as it warms; shifts in snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.»