[...paper added to the Library page at http://www.morphometrics.org -the
mod (dslice)]
-------- Original Message --------
Subject: Re: How to eliminate the effect of sexual dimorphism?
Date: Mon, 7 Mar 2011 11:01:48 -0500
From: [email protected]
To: [email protected]
Dear Tina!
I would like to draw your attention to our recent paper, in which we
adressed "the problem" of
sexual dimorphism AND population/species divergence in cichlid fishes on
a GM-basis. Your
dataset sounds very much like what we had and a (graphical) MANOVA with
corresponding
shape decomposition could show you the interesting differences of
between-species versus
between-sex variation in shape. I agree with some others who have
already responded to
your question that solely eliminating the effect of sex would erase an
important part of
natural/sexual selection patterns from your study. Instead, I suggest
that you should have a
look at the population- AND sex-specific shape variation.
http://www.frontiersinzoology.com/content/pdf/1742-9994-7-4.pdf
Hope it helps
Juergen
On 5 Mar 2011 at 13:53, morphmet wrote:
-------- Original Message --------
Subject: How to eliminate the effect of sexual dimorphism?
Date: Thu, 3 Mar 2011 04:03:49 -0500
From: tina klenovsek <[email protected]>
To: [email protected]
Dear All!
I hope you can help me!
The thing is that I would like to compare mandibles of five
populations
of two different mammal species. The problem is I also have sexual
dimorphism both in shape and size and small samples. Therefore I
was
thinking if I could somehow eliminate the part of variation that is
the
effect of gender and in subsequent analysis of phylogeny use pooled
sexes.
I know how to get the 'allometry-free' shape data and do the test
for
common slopes. But what about sexual dimorphism? Is it possible?
Thank you in advance!
Tina Klenovsek
Faculty of natural sciences and mathematics
University of Maribor
Slovenia
<°))))><
Dr. Juergen Herler
Faculty of Life Sciences
University of Vienna
Althanstraße 14/1090 Vienna
tel.: ++43/1/4277-54413
e-mail: [email protected]
http://homepage.univie.ac.at/juergen.herler
