Organismal Ecology Flashcards
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Questions and Answers

What is Organismal Ecology?

  • The study of evolutionary biology
  • The study of population interactions
  • The study of how an individual interacts with its environment (correct)
  • The study of ecosystem dynamics

    • What does the term 'trade off' refer to?

    An alternative that must be given up when one choice is made rather than another.

    What is the best 'choice' referred to in ecology?

    A trade off between two or more opposing pressures.

    What is Fact 1 of the Theory of Evolution by Natural Selection?

    <p>Potential exponential increase of populations.</p> Signup and view all the answers

    What is Fact 2 of the Theory of Evolution by Natural Selection?

    <p>Observed steady state population stability.</p> Signup and view all the answers

    What is Fact 3 of the Theory of Evolution by Natural Selection?

    <p>Limitation of resources.</p> Signup and view all the answers

    What is Fact 4 of the Theory of Evolution by Natural Selection?

    <p>Uniqueness of the individual.</p> Signup and view all the answers

    What is Fact 5 of the Theory of Evolution by Natural Selection?

    <p>Heritability of much of the individual variation.</p> Signup and view all the answers

    What is Inference 1 of the Theory of Evolution by Natural Selection?

    <p>Struggle for existence amongst individuals.</p> Signup and view all the answers

    What is Inference 2 of the Theory of Evolution by Natural Selection?

    <p>Differential survival, i.e., natural selection.</p> Signup and view all the answers

    What is Inference 3 of the Theory of Evolution by Natural Selection?

    <p>Through many generations - evolution.</p> Signup and view all the answers

    What does the term 'Role Niche' refer to?

    <p>A species' 'role', 'place' or 'nook' in a community.</p> Signup and view all the answers

    What is the Population-Persistence Niche?

    <p>The set of conditions that sustains a population of individuals.</p> Signup and view all the answers

    What is a realized niche?

    <p>Niche biased on the competition that a species has in its fundamental niche.</p> Signup and view all the answers

    What is the Resource-Utilization Niche?

    <p>The set of 'conditions' utilized by individuals in a population.</p> Signup and view all the answers

    Study Notes

    Organismal Ecology

    • Focuses on individual organisms and their interactions with the environment.
    • Examines evolved strategies for coping with environmental challenges.

    Trade Off

    • Refers to alternatives that must be sacrificed when choosing one option over another.
    • Crucial in understanding decision-making in ecological contexts.

    The Best 'Choice'

    • Involves balancing multiple opposing pressures such as sex ratios and predator presence.
    • Decisions made by individuals influence survival and reproductive success.

    Theory of Evolution by Natural Selection - Fact 1

    • Populations have the potential for exponential growth under ideal conditions.

    Theory of Evolution by Natural Selection - Fact 2

    • Populations tend to reach a steady state, indicating stability in populations over time.

    Theory of Evolution by Natural Selection - Fact 3

    • Resource limitation plays a critical role in shaping population dynamics.

    Theory of Evolution by Natural Selection - Fact 4

    • Individual uniqueness is important; variations contribute to evolutionary processes.

    Theory of Evolution by Natural Selection - Fact 5

    • A significant portion of individual variations is heritable, impacting evolution.

    Theory of Evolution by Natural Selection - Inference 1

    • There is a constant struggle for existence among individuals within a population.

    Theory of Evolution by Natural Selection - Inference 2

    • Natural selection leads to differential survival based on advantageous traits.

    Theory of Evolution by Natural Selection - Inference 3

    • Evolution occurs over many generations as adaptive traits become more common.

    The 'Role Niche'

    • Represents a species' position and function within a community.
    • Often referred to as 'ecological equivalents', highlighting roles similar across different species.

    The Population-Persistence Niche

    • Defines specific conditions necessary for the survival and reproduction of a population.
    • Emphasizes a quantitative approach to understanding environmental needs.

    Realized Niche

    • The actual niche occupied by a species, shaped by competition and other biotic factors.
    • Often narrower than the fundamental niche due to ecological interactions.

    Resource-Utilization Niche

    • Encompasses the conditions exploited by individuals in a population.
    • Factors include organism morphology, behavior, and physiological adaptations.

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    Test your knowledge on organismal ecology with these flashcards. Learn about how individuals interact with their environments and the trade-offs involved in their choices. Perfect for students and enthusiasts alike!

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