Long-Term Stable Climatic Conditions in Tropical Regions Are Often Cited

question 27

Multiple Choice

Long-term stable climatic conditions in tropical regions are often cited as one reason for high species diversity at these low latitudes.Which of the following consequences of a more stable climate has not been proposed as a likely mechanism explaining increased species diversity in the tropics?

• A) Lower extinction rates
• B) Increased time for niche specialization
• C) Higher NPP
• D) Lower rates of predation and parasitism,allowing primary producers and herbivores to flourish
• E) Lack of large-scale disturbances such as glaciation,allowing time for speciation

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