Ecological Potentials Overview

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Questions and Answers

What aspect of ecological tolerance is directly influenced by the ability of organisms to withstand variations in their environment?

  • Biogeochemical cycles
  • Community structure
  • Evolutionary adaptation
  • Physiological potential (correct)

Which of the following examples illustrates how competition can affect physiological potential?

  • A species adapting to new environmental conditions over generations.
  • A species with low water tolerance thriving in a dry environment.
  • A species with high physiological potential outcompeting another for resources. (correct)
  • A species' population size increasing due to favorable environmental conditions.

How do fluctuations in environmental factors affect the physiological potential of organisms?

  • They determine the available resources, influencing the species' ability to survive and reproduce. (correct)
  • They directly change the organism's physical characteristics.
  • They have no effect on the organism's physiological potential.
  • They cause genetic mutations that enhance tolerance.

Based on the examples provided, which of the following statements is true about the physiological potential of Black Willow and Red Beech?

<p>Black Willow has a higher physiological potential in terms of water tolerance compared to Red Beech. (A)</p> Signup and view all the answers

Which of the following factors is NOT directly related to the organism's physiological potential?

<p>Population density (D)</p> Signup and view all the answers

Flashcards

Ecological Tolerance

The ability of organisms to withstand environmental fluctuations.

Physiological Potential

An organism's inherent ability to tolerate environmental changes.

Environmental Factors

Conditions that fluctuate in an ecosystem impacting survival.

Competition

The struggle among organisms for limited resources.

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Examples of Physiological Potential

Specific species demonstrate varied abilities to tolerate conditions.

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Study Notes

Ecological Potentials

  • Ecological Potential Limitation: Organisms' ability to thrive is constrained by competition from other organisms, and fluctuations in environmental factors.
  • Physiological Potential: Inherent capacity of an organism, determined by genetics, to survive and reproduce in fluctuating environments.
  • Specific examples:
    • Black Alder (Alnus glutinosa) possesses a significant physiological potential pertaining to water availability, due to its adaptability in diverse soil conditions.
    • Red Beech (Fagus sylvatica) has a limited physiological potential, as it demonstrates preference within a specific range of environmental conditions.

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