26. Populations and Ecosystems
Concepts
Plants in Relation to their Habitats
- Abiotic Components of the Habitat
- Climate
- Soil Factors
- Latitude and Altitude
- Disturbance
- Biotic Components of the Habitat
- The Plant Itself
- Other Plant Species
- Organisms Other Than Plants
The Structure of Populations
- Geographic Distribution
- Boundaries of the Geographic Range
- Local Geographic Distribution
- Age Distribution: Demography
- r-and K-selection
The Structure of Ecosystems
- Physiognomic Structure
- Temporal Structure
- Species Composition
- Trophic Levels
Plants and People: Niches in the Jet Age
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