Basics
Bald Eagles are typically called
Top Predators
What was reintroduced to Yellowstone to restore it?
Wolf
First Level of the Pyramid
Arrows in a food chain show the...
Energy Flow
Extinction or Over population
What are the different tiers in the pyramid called?
Trophic Levels
When the predators returned to Yellowstone, this herbivore popoulation decreased.
Deer
Primary Consumers
Only this percentage of energy moves from one level too another.
10%
Species that enters an ecosystem and causes harm
Invasive Species
Total mass of organisms living in an area
Biomass
Sea Otters protect kelp forest by eating...
Sea Urchins
These organism break down dead matter and recycle nutrients
Decomposers
This diagram shows more complex way of how the food chain functions
Food Web
Species that has a disproportionally large effect on the ecosystem
Keystone Species.
This occurs when predators are removed
Trophic Cascade
The recovery of willow trees in Yellowstone helped this animal build its home.
Beaver
These consumers eat the herbivores
Secondary Consumers
Most energy is lost as...
Heat or waste
When predators are removed from an ecosystem, this is the effect on the producers
Decrease
Energy decreases as it moves up through the levels (hint: how much?)
10% Rule
This organism being killed, caused a trophic cascade in the NW Pacific ecosystem (hint:the video)
Whale
This level of the food web is needed in the lowest amount
Top/apex predator
This percentage of energy is what secondary consumers have
1%
The type of effect predators have on producers
Indirect