Biology › Section R · The biosphere, populations, and communities › Topic R.4
Population demography
Before you can protect a population, harvest it sustainably or predict its future, you have to know how many individuals there are, how they are spread out and how long they tend to live. Demography supplies the counting tools and the tables that turn field data into those answers.
In this topic
- Counting the uncountable
- Sampling with quadrats
- Worked example: wildflowers in a meadow
- Mark and recapture
- Worked example: newts in a pond
- Patterns of dispersion
- Demography: births, deaths, arrivals and departures
- Life tables
- Worked example: building a life table
- Survivorship curves
- Common mistakes to avoid
- Key takeaways
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