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How Many Penguins Does It Take?
Limiting Factors are physiological or biological necessities that restrict survival. Limiting
factors dictate population numbers. Example: food, water, shelter.
Carrying Capacity is the number of organisms an ecosystem can hold long-term without
any damage to that ecosystem.
Was there any evidence of
sickness or injury preventing our
volunteer penguins from getting
enough food? What might
eventually happen to them?
Would the parent penguin keep
the gathered food for himself, or
would he give it to the baby
penguin? Why?
If krill is limiting to a species in an
ecosystem and the amount of krill
is increased, what will happen to
the population of that species?
What will happen to the carrying
capacity?
Name some factors that could
cause a population to increase.
Try to include as many types of
factors as possible.