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Latitudinal Diversity Gradient (The LDG)

Home → Visualizing life on Earth → Investigation Phase IV: Why the tropics? → Testing hypothesis #2: Are the tropics a museum? → Multiple choice: Question 7

Multiple choice: Question 7

Citation: Wei, K., and Kennett, J. P. 1983. Nonconstant extinction rates of Neogene planktonic foraminifera. Nature 305: 218-220.

Question 7

Multiple choice: Question 6

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Think about it: Question 9

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Visualizing life on Earth

Introducing the LDG
Investigation Phase I: Is the LDG real?
Investigation Phase II: Are the tropics crowded?
- Examining the data
- The tropics are crowded! Since when?
Investigation Phase III: Figuring out who lived where when
- Is the LDG old? Examining the data
- The LDG is old — at least in the oceans
Investigation Phase IV: Why the tropics?
Conclusion: Generating more questions
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