BIO120H1 Lecture Notes - Lecture 2: Evaporative Cooler, Evaporation, Ecophysiology
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BIO120H1 Full Course Notes
Verified Note
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Document Summary
Lecture 2: species ranges and the physical challenges of the environment heat balance. Reactions occur (enzymes function) best at optimum temperature and osmotic conditions, where fitness is maximized. Many mechanisms for homeostatis have evolved to challenge hostile environments. Maintenance of homeostatis requires energy and is often limited by constraints & trade offs. Geographical ranges: correspond to biomes, limited to special habitats (behavioural habitat selection) Extreme habitat generalist will be located in vast locations. Extreme habitat specialist only found in certain locations (very limited locations: limited by other organisms. Not limited by climate or habitat type but other animals. Expansion of coyote due to humans hunting wolves: transcend biomes (ecological versatility, super generalists) Radiation heat transfer by electromagnetic radiation. Conduction direct contact with substrate (e. g. , feet lose heat to ground placing a hot and cold object directly together) Convection heat transfer mediated by moving fluid (usually air or water) Evaporation efficient cooing from wet surfaces.
