Climate Change
The temperature has increased globally but increased at a greater rate in the arctic. True or False
True
How far can a Polar Bear swim?
30 miles
What is a trophic cascade?
Predator controls a community organization
How are humans impacting the arctic climate?
Overharvesting, loss of sea ice, human development, etc
Polar bears are Barometers of environmental issues. True or False
True
What is a Keystone Species?
Exerts strong control on a community by their pivotal role
40%
How much weight do they lose while nursing their cubs?
around 300lbs
What is a food web?
The interconnected feeding relationships in an ecosystem
On average, how much has the temperature risen in the arctic?
0.5-1.0 degrees celcius
What is polar bears' main food source?
Top-Down Model
N ← V ← H ← P
2 times as much
How long does it take for a polar bear to slow its metabolism
7-10 days
What happens if a keystone species is removed from an ecosystem?
The whole ecosystem would collapse, the balance would be off.