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Questions and Answers
What is stability for a biological community?
What is stability for a biological community?
- A community resistant to invasions by alien species
- A community with occasional disturbances
- A community with a high number of species
- A community with little variation in productivity (correct)
What did David Tilman's long-term ecosystem experiments show about plots with more species?
What did David Tilman's long-term ecosystem experiments show about plots with more species?
- Plots with more species had lower productivity
- Plots with more species had more invasions by alien species
- Plots with more species had higher productivity
- Plots with more species had less year-to-year variation in total biomass (correct)
What did ecologists believe for many decades about communities with more species?
What did ecologists believe for many decades about communities with more species?
- Communities with more species tend to be less stable
- Communities with more species tend to have higher invasions by alien species
- Communities with more species tend to have lower productivity
- Communities with more species tend to be more stable (correct)
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