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ECOLOGICAL MANAGEMENT: TOLERANCE

CONTENT

  1. The Meaning of Tolerance
  2. The Concepts of Minimum and Maximum Range of Tolerance
  3. Geographic Range Graph Illustrating the Maximum and Minimum Range of Tolerance
  4. Adaptation in Form and Functions of Living Organisms Due to Environmental Conditions

 

The Meaning of Tolerance

Tolerance is the ability of an organism to withstand extreme variation in the environmental conditions. Living organisms posses the ability to withstand minor unfavourable changes in the factors (biotic and abiotic) or their environment which affect their survival. Biotic components interact with abiotic components such as temperature, rainfall, high light intensity, salinity and soil factor. The abiotic factors play a significant role in the distribution of living organisms. For example temperature can prevent a plant from growing and surviving in an environment. The limits within which organisms can withstand changes in the abiotic factors depend on what is prevalent such environment.

House Mouse

The ubiquitous house mouse, Mus musculus, had its origins in Eurasia. Its precise original distribution isn’t known, and the relationship between wild forms and commensals-mice that live in proximity to, and depend upon, people-is a matter of dispute among zoologists.

Lesson tags: Biology Lesson Notes, Biology Objective Questions, SS2 Biology, SS2 Biology Evaluation Questions, SS2 Biology Evaluation Questions Second Term, SS2 Biology Objective Questions, SS2 Biology Objective Questions Second Term, SS2 Biology Second Term
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