Living and nonliving factors that influence the types of vegetation that grow at different elevations in the Arctic tundra also regulate the types of bacteria that grow in the soil. The distribution ...

Tundra is by definition a cold, treeless landscape. But scientists have found that in a part of the Eurasian Arctic, willow and alder shrubs, once stunted by harsh weather, have been growing upward to ...

Arctic and Alpine Research, Vol. 12, No. 4, Patterns of Vegetation and Herbivory in Arctic Tundra: Results from the Research on Arctic Tundra Environments (RATE) Program (Nov., 1980), pp. 531-552 (22 ...

As the Arctic warms, more of it will be covered by shrubs (like the Arctic National Wildlife Refuge, above) and even by forest. Image via ANWR You probably think of the Arctic as a cold, frozen tundra ...

Traditional models of nutrient cycling assume that soil microorganisms must decompose organic matter, releasing inorganic N, to make N available to plants. Several lines of evidence have raised doubts ...

After years of escalating greenhouse gas emissions from melting permafrost in the Arctic, scientists have discovered a similar problem from a new source: Colorado’s Front Range. Defrosting alpine ...

A muskox stands amid Greenland's arctic tundra. Large herbivores have been found to play a critical role in maintaining tundra biodiversity. (Eric Post/UC Davis) Being common is rather unusual. It’s ...

Tundra plants can eek out an existence in the very short summers of the Canadian High Arctic such as here on Ellesmere Island, Nunavut. (Anne Bjorkman, University of Gothenburg) Rapid climate change ...

In an increasingly warmer world, the Arctic tundra is becoming more forestlike. This process, known as borealization, is particularly widespread in Eurasia and in Arctic mountain regions, where the ...

Climate warming reduces the number of plant species in the tundra, but plant-eating animals, such as reindeer and voles, can turn this negative effect into something positive. Climate warming reduces ...

From rising oceans to species extinction, climate change is affecting our world in numerous ways. Now, an international team of researchers has revealed the wide-ranging impact that the changing ...