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17-year locusts and evolution

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Topic: 17-year locusts and evolution

KCdgw

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Message 8 of 27 (108786)
05-17-2004 10:04 AM

Reply to: Message 6 by RAZD
05-17-2004 12:37 AM

Re: many cicadas

I would say the staggered periods have more to do with avoiding interspecific competition than with predation.

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	Message 6 by RAZD, posted 05-17-2004 12:37 AM		RAZD has not replied

KCdgw

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Message 23 of 27 (109013)
05-18-2004 10:40 AM

Competition, not predation

I think the predator angle is less convincing than the ecological angle: 17 year locusts don't have to compete for resources with 13 year locusts. Selection will favor staggered emergent years.

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KCdgw

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Message 26 of 27 (109061)
05-18-2004 3:30 PM

Reply to: Message 25 by zephyr
05-18-2004 3:06 PM

Re: Competition, not predation

I'm not that well-informed about cicadas particularly. I just think the attention to the predation issue may eclipse what may ultimately be behind the staggered emergence cycles.

This message has been edited by KCdgw, 05-18-2004 02:30 PM

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