Mark-Recapture (Lincoln-Petersen) Calculator
This calculator helps biologists and ecologists estimate the size of a wildlife population using the Mark-Recapture method. This method is crucial for population management and conservation efforts.
Calculator
Results
Estimated Population Size (N):
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Data Source and Methodology
All calculations are based strictly on the methodologies provided by EpiTools. All calculations are rigorously based on the formulas and data provided by this source.
The Formula Explained
Lincoln-Petersen Estimate Formula:
N = \(\frac{M \times C}{R}\)
Glossary of Variables
- M: Number of marked individuals in the first sample.
- C: Total number of individuals captured in the second sample.
- R: Number of marked individuals recaptured in the second sample.
- N: Estimated total population size.
How It Works: A Step-by-Step Example
Suppose you marked 50 animals in a first sample (M). A week later, you capture 120 animals (C), 30 of which are marked (R). The estimated population size (N) would be calculated as follows:
N = (50 × 120) / 30 = 200
Frequently Asked Questions (FAQ)
What is the Mark-Recapture method?
A statistical approach used for estimating the size of animal populations.
Why is it important?
It's used in ecology and wildlife management to assess population dynamics and conservation status.