Chapter 21 Flashcards Preview

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Flashcards in Chapter 21 Deck (8):
1

Why do ecologists think that historical and evolutionary effects better explain the characteristics of mammal species in Australia than environmental effects?

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2

When studying global patterns of diversity, why is it important to understand continental drift?

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3

What is the relationship between the length of time the modern continents have been connected and the similarity among the species on each continent?

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4

How does knowledge of historic climatic patterns affect our interpretation of present-day patterns of species diversity?

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5

What does the observation of convergent traits among distantly related species tell us about evolution by natural selection?

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6

Why does initial trait similarity between closely related species often favor the evolution of trait divergence?

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7

In what way do the age and area of a region affect its species richness?

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8

How can the fossil record inform us about current differences in diversity between temperate and tropical regions?

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