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The limit of the ‘north’ is defined by the ____
permafrost
What are the 4 northern regions?
• high arctic • low arctic • subarctic • boreal forest
Where is the arctic? It depends on how you define it. What are the 3 main definitions?
• geographic- 24hrs of daylight in the summer • thermal properties • floristic properties
The arctic circle is at & above __ degrees latitude, and is defined by:
66.5 degrees 24hrs daylight in summer and 24hrs dark in winter
ecology=
the study of relationships and interactions b/w plants and animals (inc humans_ and their enviro - such that we can predict changes! ie studying structure/ functions of ecosystems
There are 8 ‘arctic nations’. List at least 4
• Canada • US (Alaska) • Greenland • Iceland • Norway • Sweden • Finland • Russia
What are the 3 delineations (describers) of the arctic?
• 10 degree C isotherm for July - b/c 10C significant temp for plant growth/ life • Boreal forest treeline - roughly corresponds to the 10C July isotherm, but can be up to 200km south of the isotherm (varies w local climate & conditions) • Arctic Circle (66 degrees, 33min) ie 66.5 degrees N