Which statement accurately describes the portfolio effect?
A) Ecosystem stability creates a positive indirect effect on herbivores.
B) Community stability is enhanced when the population of one species cancels out variation in another such that the overall abundance in the community remains the same.
C) Community biodiversity does not alter the net effect of predators in a diverse population.
D) The greater the biomass of an ecosystem the less likely it is to be altered by disturbances.
Correct Answer:
Verified
Q42: In Paine's studies of ecosystems in the
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Q44: Which statement about keystone species is false?
A)
Q45: In Paine's demonstration of how removing the
Q46: Haddad's arthropod experiment showed that
A) arthropod communities
Q48: In the early 1970s, May criticized Elton
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Q51: In which human communities would one be
Q52: Refer to the table.
Table 1
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