Lincoln Index Population Size

Using the Lincoln Index, estimate the population size if 200 individuals were initially captured, marked, and released. Later, 250 individuals were captured including 50 that were marked.

• 1000

• 900

• 800

• 1100

Tags

DOK Level 2: Skill/Concept

How would you use the Lincoln Index to estimate the population of a species in a large forest area?

• Capture as many individuals as possible, mark them, and never release them back.

• Capture a sample of individuals, mark them, release them, and then recapture to estimate the total population.

• Only observe the animals from a distance to estimate the population.

• Use satellite images to count the number of individuals.

Tags

DOK Level 3: Strategic Thinking

A method for estimating population size using capture-mark-recapture data. (2.1.17)

• random sampling

• Lincoln index

• dichotomous key

• DNA survey

Using the Lincoln Index, if 150 individuals were initially captured, marked, and released, and later 300 individuals were captured including 75 that were marked, what is the estimated population size?

• 600

• 450

• 900

• 750

What is the primary assumption of the Lincoln Index method?

• The marked individuals mix randomly with the population.

• The marked individuals are more likely to be recaptured.

• The population size decreases over time.

• The marked individuals do not survive.

Which of the following is a limitation of the Lincoln Index?

• It requires a large sample size.

• It assumes no immigration or emigration.

• It can only be used in aquatic environments.

• It is only applicable to plant populations.

In a study using the Lincoln Index, why is it important to ensure that the marking does not affect the individual's chance of survival?

• To maintain the integrity of the population estimate.

• To ensure the marked individuals are easily visible.

• To prevent the marked individuals from being preyed upon.

• To make the recapture process easier.

How does the Lincoln Index account for the possibility of marked individuals being lost or dying?

• It does not account for this possibility.

• By adjusting the recapture rate.

• By increasing the initial capture size.

• By using a correction factor.

If a researcher captures 100 fish, marks them, and releases them, and later captures 200 fish including 40 marked ones, what is the estimated population size using the Lincoln Index?

• 500

• 400

• 800

• 600

What type of marking is most suitable for a Lincoln Index study on birds?

• Using colored leg bands.

• Tagging with electronic chips.

• Painting their feathers.

• Attaching GPS devices.

Tags

NGSS.MS-ETS1-2