Quoting Darwin now ? What next? I notice you haven't commented as to
whether evolutionary biologists have accepted your second form of sexual
selection as enthusiastically (intersexual that is).
The talk that Milton Lewis gave at the Townsville ANGFA Conference seemed
to support this contention. He was going to do some experiments with
Peacock Gudgeons but I think it fizzled out. I hear he is still in
Townsville even though the word was that he was going to the USA
Regards,
Bruce.
Bruce Hansen, ANGFA, caring for our aquatic ecosystems.
Please visit us at http://www.ozemail.com.au/~fisher/angfa.htm
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>. He identified two forms of sexual
> selection. Intrasexual selection involves fighting or other aggressive
> interactions between males, as well as the development of elaborate
> structures to serve as weapons. This mechanism for the evolution of
> exaggerated male traits is generally accepted by evolutionary biologists.
> The second form of sexual selection suggested by Darwin is intersexual
> selection. Darwin observed that sexual selection is often driven by
female
> preference for particular males within the breeding population, creating
> variability in male reproductive success. He proposed that competition
among
> males to attract the attention of females leads to the elaboration of
> structures or behaviors that attract females, and assumed that females
show
> a sexual preference for males exhibiting a particular type of
ornamentation
> or behavior.