2 - Evolution of Herbivory

Question 1

Proposed scenario for earliest evolution of plant-feeding by insects?

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Question 2

Selective effects of evolution of large tree-like plants near end of Devonian on evolution of insects?

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Question 3

First great adaptive radiation of insects?

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Question 4

What may have driven the first adaptive radiation of insects?

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Question 5

Component community

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Question 6

Factors that drove great extinction of ancient insect lineages near the end of Paleozoic?

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Question 7

When did angiosperms first arise?

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Question 8

Proposed influences of evolution of angiosperms on diversification (adaptive radiation) of insects?

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Question 9

Does ‘adaptation’ necessarily imply ‘coevolution’?

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Question 10

According to Jansen, what does coevolution actually mean and when does it occur?

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Question 11

Labandeira & Sepkowski (1993) … fossil record challenged view that adaptive radiation of modern insects was accelerated by expansion of angiosperms in Cretaceous. Discuss two kinds of evidence they cite to support their theory.

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Question 12

What counterpoint to Labandeira and Sepkowski’s interpretation of the fossil record is suggested by Farrell’s article ‘Inordinate fondness explained: why are there so many beetles?’

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Question 13

fitness

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Question 14

stepwise coevolution

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Question 15

diffuse coevolution

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Question 16

“Ecological Saturation Hypothesis”

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Question 17

“Expanding Resources Hypothesis”

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Question 18

Coevolution (Ehrlich/Raven)

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Question 19

Why is ‘arms race’ often invoked in connection with E&R’s vision of coevolution?

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Question 20

Conrad Labandeira

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Question 21

Paul Ehrlich and Peter Raven

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Question 22

Daniel Janzen

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