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4 cards from this section. Quick, good the night before a test.
Define 'Population Size'.
Think about what it represents in ecology.
What does Natality refer to?
Consider how new individuals are added to a population.
What does 'Population Size (N)' refer to?
Focus on the definition of population size.
True or False: High natality always leads to an increase in population size.
Think about the balance of births and deaths.
A protected wildlife area shows a population of 100 elk. After a successful breeding season, 40 elk are born, but 10 die due to predation, and 5 migrate to a different area. Calculate the new population size.
Consider how breeding increases numbers and predation and emigration decrease them.
Discuss how urbanization impacts local wildlife populations in terms of immigration and emigration. What could be the long-term effects?
Think about how animals might react to changes in their habitat.
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