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Chapter 36: Problem 53

Describe how a researcher could determine the population size and density of a bird population on one of the Hawaiian islands. a. Population size can be determined by life tables. The area of the island in square kilometers is divided by the population size to determine the density of the bird population. b. Population size can be determined by the mark and recapture method. The population size is divided by the area of the island in square kilometers to determine the density of the bird population. c. Population size can be determined by life tables. The population size is divided by the area of the island in square kilometers to determine the density of the bird population. d. Population size can be determined by the mark and recapture method. The area of the island in square kilometers is divided by the population size to determine the density of the bird population.

Short Answer

Expert verified
The correct answer is b.

Step by step solution

01

- Understand the Question

The question asks how a researcher could determine the population size and density of a bird population on a Hawaiian island, and provides four answer choices.
02

- Population Size Determination Methods

Identify the methods mentioned for determining population size: Methods described are 'life tables' (choices a and c) and 'mark and recapture' (choices b and d).
03

- Density Calculation

Each option describes how to calculate population density by using population size and the area of the island:
04

- Match Methods to Calculations

a) Life tables for population size, density is area/population. b) Mark and recapture method for population size, density is population/area. c) Life tables for population size, density is population/area. d) Mark and recapture method for population size, density is area/population.
05

- Correct Method and Calculation

Based on the correct procedures, the answer should use a valid determination method and formula. The correct answer is 'population size' divided by 'area' to determine 'density'.
06

- Identify Correct Answer

Option b says 'population size can be determined by the mark and recapture method. The population size is divided by the area of the island in square kilometers to determine density.' This matches the correct method and calculation.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Mark and Recapture Method
The mark and recapture method is a widely-used technique for estimating the population size of wildlife. It involves capturing a sample of individuals from the population, marking them in a harmless way, and then releasing them back into the wild. After a specific period, another sample is captured, and researchers count how many of the captured individuals are marked.

From this data, the population size can be estimated using the formula:

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