BIO120H1- Final Exam Guide - Comprehensive Notes for the exam ( 175 pages long!)
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BIO120H1 Full Course Notes
Verified Note
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Document Summary
Lecture 1: distributional aspects of biodiversity: no biological organism is spread across world at random. There are 5 different scale levels of patchiness: global (largest, regional, habitat, microhabitat. The more you zoom in, the more patterns you have. Each species has its own set of characteristics that limit it to certain parts of habitat. Abiotic (physical/chemical) factors: resources: exhaustible; organisms take into body for growth & reproduction, e. g. nutrients, space etc. Conditions: not exhaustible; physical parameters: e. g. temperature, ph, salinity etc. Conditions vary across space & time; envision gradients of conditions: organisms perform best at certain levels (i. e. at certain portions of a gradient, called optimal conditions. Species have ranges of tolerance along environment al gradients. Food & water: temperature, habitat quality (cover, nesting sites, predation, disease, aquatic animals, + salinity & osmotic pressure, animals will tend to follow plants.
