Search results
Results from the WOW.Com Content Network
Habitat selection, reproduction and predation of wintering lemmings in the Arctic. Oecologica. 167(4): 967–980. Gauthier G, Berteaux D, Bety J, Tarroux A, Therrien J, McKinnon L, Legagneux P, Cadieux M. (2011). The tundra food web of Bylot Island in a changing climate and the role of exchanges between ecosystems1. Ecoscience. 18(3):223.
According to the US Energy Information Administration, the arctic tundra holds an estimated 13% or 90 billion barrels of the world's undiscovered conventional oil sources. However, there are a number of challenges to oil exploration, drilling, and transportation in an arctic tundra environment that limits the profitability of the venture. [15]
Although they are remote from human world, polar seas are not 'pristine' environments. Compared with the Antarctic region, the Arctic has long history of interaction with man. The polar food web structure can be sensitive to man's 'top-down' control especially with the development and growth of industrial fishing. Climate change is a natural ...
The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn.. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...
With wildfires and increased warming, scientists say the Arctic’s tundra is now a carbon source. The region had been a carbon sink for thousands of years (NOAA Climate.gov; Arctic Report)
Arctic ecology is the scientific study of the relationships between biotic and abiotic factors in the arctic, the region north of the Arctic Circle (66° 33’N). [1] This region is characterized by two biomes: taiga (or boreal forest ) and tundra . [ 2 ]
The arctic tundra often lacks sunshine. Summer days last 24 hours, yet the sun remains low on the horizon. During the winter, the opposite occurs, and the entire landscape is dark.
The Arctic marine food web consists of Primary consumers, Secondary consumers, Tertiary consumers, and scavengers. Marine mammals in the Arctic are experiencing severe impacts, including effects on migration, from disturbances such as noises from industrial activity, offshore seismic oil exploration, and well drilling.