BIO120H1 Lecture : Lecture 1 - 23 and Nature article readings
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BIO120H1 Full Course Notes
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Conditions (are not exhaustible): temperature, ph: vary across space and time. All organisms perform best at certain levels: we expect organisms need a range of tolerance, from survival growth reproduction. For terrestrial plants (most important to least): temperature (this and soil are most important, soil moisture, nutrients (n most important, then p, k, disturbances (esp. fire, disease, pollinators, etc etc) For terrestrial animals: food and water, temperature, habitat quality, predation, disease, tend to follow plants. Temperature is a function of latitude: high latitude are colder, and seasons depend on temperature, lower latitudes are warmer, and seasons depend on rainfall. Size: sa:volume ratio, sa determines the equilibration rate, volumes provides the inertia, thus, big things with huge ratios will equilibrate slowly compared to smaller things, bergmann"s rule. Homeotherms are larger at higher latitudes (colder) Duh, cause you don"t want the outside environment affecting their inner environment quickly. Appendages (anything outside the body) is reduced in cold climates.
