Biology 2483A Lecture Notes - Lecture 3: Basal Metabolic Rate, Copper Loss, Turbulence
13 Feb 2017
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Document Summary
Organism"s ecological success is influence by the physical environment in two ways: availability of energy and resources impacts growth and reproduction, extreme conditions can exceed tolerance limits and impact survival. Energy supply can influence an organism"s ability to tolerate environmental extremes. Geographic distribution of a species is related to other factors like disturbance and competition. Because plants don"t move, they are good indicators of the physical environment. Example: aspen (tree) distribution can be predicted based on climate. (low temperatures and drought affect reproduction and survival. ) Climate envelope- range of conditions over which particular species occur. Physiological ecology- study of interactions between organisms and the physical environments that influence their survival and persistence. Physiological processes have optimal conditions for functioning. Deviations from the optimum reduce the rate of the process. Stress environmental change results in decreased rates of physiological processes, lowering potential for survival, growth, or reproduction.
