Arctic - Environmental & Ecological

Question 1

Why has there been this decrease in polar bears?

Answer 1

Smaller hunting area

Less prey - seals

Question 2

Northward expansion of which forest?

Answer 2

Boreal

Question 3

Northward expansion of Boreal forest will enroach on…

Answer 3

Tundra ecosystems

Question 4

What’s happening in northern Russia because of the forest expansion?

Answer 4

Increased likelihood of forest fires and insect outbreak

Question 5

How many acres lost from tree mortality

Answer 5

2.3 million

Question 6

What percentage of permafrost is expected to thaw?

Answer 6

40%

Question 7

What does the thawing of lakes mean?

Answer 7

Removes habitats for fresh water species such as arctic char

Question 8

How many arctic foxes are left in Scandinavia?

Answer 8

200

Question 9

Why has there been a decrease in arctic foxes?

Answer 9

Decrease in voles & lemmings
and
Increased competition from red fox which is spreading northwards

Question 10

What’s an example of an animal that is being forced to adapt to the changing climate?

Answer 10

Killer whale changing it’s diet

Question 11

How much have polar bears reduced by in Canada, Hudson Bay

Answer 11

22%