Population Math Practice #2
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Last updated almost 4 years ago
7 questions
There is an island just off the coast called Anacapa Island where Western Gulls breed and raise their young.
- Anacapa is about 0.5 km wide and 4.6 km long.
- 15,000 gulls live and breed on Anacapa each year.
- Each year, 3500 chicks are born, and 2300 gulls die.
Each year, 125 birds immigrate to, and 140 birds emigrate from the island.
1
What is the density of birds on the island? (Hint: First find the area by multiplying length X width)
What is the density of birds on the island? (Hint: First find the area by multiplying length X width)
1
What is the birth rate of birds on the island?
What is the birth rate of birds on the island?
1
What is the death rate of birds on the island?
What is the death rate of birds on the island?
1
What is the crude growth rate of the birds on the island?
What is the crude growth rate of the birds on the island?
1
What is the total annual growth rate of birds on the island (including migration)?
What is the total annual growth rate of birds on the island (including migration)?
1
What Is the doubling time of the population (use r from #5)
What Is the doubling time of the population (use r from #5)
1
Do you think the gull population will double? Identify 3 limiting factors that might contribute to a carrying capacity for Anacapa Island.
Do you think the gull population will double? Identify 3 limiting factors that might contribute to a carrying capacity for Anacapa Island.