General Ecology_Mahaffy_Date__022310

General Ecology_Mahaffy_Date__022310 - Abiotic factors...

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Abiotic factors continued and Adaptations Adaptations organisms have for abiotic conditions Especially temperature and water Recall tolerance graph Optimum level and zone of stress Adaptation Genetic solution to stress Long term Acclimization Adjustment of physiology or behavior in response to stress Short term Reversible Adaptation eventually lead to: Ecotypes Definition: Ecologically and genetically distinct phenotypes of a species, usually living in distinct, contrasting environments to which they have adapted. These adaptations are the basis of the ecotypic differentiation of the organisms Can eventually become distinct species if the populations become reproductively isolated Temperature Controls physiological activity High temperature Denature enzymes May lead to evaporation Osmotic stresses Low temperature Slow reactions Affect properties of membranes Slows functions How is heat exchanged? Evaporation
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General Ecology_Mahaffy_Date__022310 - Abiotic factors...

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