Chapter 25: Populations and Ecosystems
Concepts
Population
Ecosystem
Community
Plants in Relationship to Their Habitats
Habitats
Operational habitats
Abiotic and Biotic
Abiotic Components of the Habitat
Climate
Soil Factors
Latitude and Altitude
B horizon
C horizon
Tolerance Range
A horizon
Pioneers
Disturbance
Biotic Components of the Habitat
The Plant Itself
Other Plant Species
Mutualism
Competition
Competitive Exclusion
Niche
Ecotypes
Transplant Experiments
Common Garden
Organisms Other Than Plants
Commensal Relationships
Predation
Herbivors and herbivory
Pathogenic
Frugivores
The Structure of Populations
Plants and People: Niches in the Jet Age
Geographic Distribution
Boundaries of the Geographic Range
Limiting Factor
Local Geographic Distribution
Random Distribution
Clumped Distributions
Uniform Distributions
Allelochemics and allelopathy
Age Distribution: Demography
demography
Generation time
Intrinsic rate of natural increase
Biotic Potential
Carrying capacity
r- and K-Selection
r-Selection species
K-Selection species
The Structure of Ecosystems
Physiognomic Structure
Life Forms
Temporal Structure
Species Composition
Trophic Levels
Primary Consumers
Secondary Consumers
Decomposers
Energy Flow and Carbon Flow
Primary Producers
A set of conditions in which a particular species can thrive, out competing other organisms
Increase travel for humans have caused the movement of animals
The Jet age of humans have caused a lot of problems for all the other species