BIO331H5 Lecture Notes - Lecture 1: Multivariate Statistics, Ecology, Community Structure

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3 Feb 2016
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Lecture 1
- Ecology = study of the processes that control the abundance,
distribution, and diversity of species
- Ecology is not the same as environmentalism
- Testing hypotheses and predictions; not hunting for facts
oHypothesis: a proposed explanation for an observed
phenomenon that includes the mechanism producing the
pattern (HOW?)
oPrediction: speci'c outcome or pattern we can observe
(WHAT/WHEN/WHERE?)
Can be expressed graphically to be more speci'c
about their form
- Theory: general mathematical relationships that describe or
predict ecological patterns
- Experiments: 'led  lab
- Field: comparative and descriptive approaches
Lecture 2
- Community ecology
oAdding in species; do species interact?
oLook at level of species; species’ traits and how it a3ects
interaction with other species
oIndividual of species X interact with individuals of species X
and Y
- Guilds share same resources
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