Exploring Species Diversity and Community Stability
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Questions and Answers

Which part of the airplane ecosystem is compared to a species in the text?

  • Windows
  • Rivets (correct)
  • Flight safety
  • Passengers
  • What happens to flight safety as more rivets are removed?

  • It improves
  • It remains the same
  • It becomes stronger
  • It becomes dangerously weak (correct)
  • Which part of the airplane ecosystem is mentioned as a key species that drives major ecosystem functions?

  • Rivets on the wings (correct)
  • Rivets on the seats
  • Rivets on the windows
  • Passengers
  • What is the consequence of losing rivets on the wings compared to losing rivets on the seats or windows?

    <p>More serious threat to flight safety</p> Signup and view all the answers

    What is the purpose of rivets in an airplane ecosystem?

    <p>To strengthen the plane</p> Signup and view all the answers

    What is the effect of passengers popping rivets in the airplane ecosystem initially?

    <p>No effect</p> Signup and view all the answers

    What is the long-term effect of more and more rivets being removed from the airplane ecosystem?

    <p>Dangerous weakening of the plane</p> Signup and view all the answers

    What is the significance of the specific rivets being removed in the airplane ecosystem?

    <p>More serious threat to flight safety</p> Signup and view all the answers

    What is the analogy being made between the airplane ecosystem and a natural ecosystem?

    <p>They both become weak over time</p> Signup and view all the answers

    Which attribute is NOT linked to species richness in a community?

    <p>Total biomass</p> Signup and view all the answers

    What did David Tilman's long-term ecosystem experiments show?

    <p>Increased diversity leads to higher productivity</p> Signup and view all the answers

    What is the main reason why rich biodiversity is essential for ecosystem health?

    <p>It contributes to stability and resistance to disturbances</p> Signup and view all the answers

    What is stability for a biological community?

    <p>Resistance to disturbances</p> Signup and view all the answers

    What did ecologists believe for many decades regarding communities with more species?

    <p>They tend to be more stable</p> Signup and view all the answers

    What did David Tilman's experiments show regarding year-to-year variation in total biomass?

    <p>Plots with more species showed less variation</p> Signup and view all the answers

    What is the main reason why rich biodiversity is imperative for the survival of the human race?

    <p>It ensures the well-being of ecosystems</p> Signup and view all the answers

    What is the 'rivet popper hypothesis' used by Paul Ehrlich?

    <p>An analogy to develop a perspective on the importance of species richness</p> Signup and view all the answers

    What is the main concern when a few species become extinct?

    <p>The impact on the functionality of ecosystems</p> Signup and view all the answers

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