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RE: Extinction due to "blue balls"
I took a class from Peter Dodson back in 1986 concerning extinction
theories, and the temperature dependent sex determination was covered
back then - admittedly, without supporting papers. At that time, the
idea was only mildly interesting as an outside possibility.
I put together an article that I used for teaching the same topic, and
90% of the information from back hasn't changed much - just some more
support for one or two of the possible causes, and one or two
possibilities lost their support.
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From: email@example.com [mailto:firstname.lastname@example.org] On Behalf
Of Jeff Hecht
Sent: Wednesday, April 21, 2004 4:53 PM
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Subject: Re: Extinction due to "blue balls"
At 4:16 PM -0400 4/21/04, Brad McFeeters wrote:
>The other paper you are thinking of is probably this one:
>Paladino, F. V., Spotila, J., Dodson, P. and Hammond. J. K. (1989).
>Temperature dependent sex deterinination for reptiles, and the
>implications for dinosaur population dynamics and possible
>extinction. Geol. Soc. Am. Spec. Pap. 238: 63-70.
That sounds about the right time.
>I haven't read either of them yet, so I don't know what new
>information Miller et al. are adding.
>I don't understand how this theory is to have any scientific value,
>since no one knows how to study sex determination in non-neornithean
>dinosaurs. They might as well be writing about the implications of
>dinosaurs having been a particular colour. Looks like a publicity
>stunt to me: "Dinosaurs", "Extinction" and "Sex" in one headline!
The scientific value would be in trying to deduce a pattern of
survival and sex determination, but I'm not convinced that's
possible. The headline value is certainly there, and explains how it
got reported anywhere. -- Jeff Hecht