----- Forwarded message from "Pere M. Parés-Casanova"
<peremiqu...@prodan.udl.cat> -----
Date: Tue, 23 Apr 2013 04:01:22 -0400
From: "Pere M. Parés-Casanova" <peremiqu...@prodan.udl.cat>
Reply-To: "Pere M. Parés-Casanova" <peremiqu...@prodan.udl.cat>
Subject: Re: Linear models for cranial variability
To: morphmet@morphometrics.org
Dear Milos.
I am not ecologist, but perhaps the Mantel test would be suitable?
On Tue, Abril 23, 2013 09:41, morphmet_modera...@morphometrics.org wrote:
>
>
> ----- Forwarded message from Milos Blagojevic -----
>
> Date: Mon, 22 Apr 2013 15:12:47 -0400
> From: Milos Blagojevic
> Reply-To: Milos Blagojevic
> Subject: Linear models for cranial variability
> To: "morphmet@morphometrics.org"
>
> Dear Morphometricians,
> Drifting a little bit from the field of GM I have a question about the
> formulation of a linear (or possible any other) model that has to account
> for cranial variability in relation to certain ecological parameters.
> My dataset consists of 50 linear measurements taken on roe deer skulls
> from 12 populations. After PCA and optional discriminant analysis I have
> individual scores that should enter possible linear model as dependent
> variables. Ecological data consists of proportions of forest to meadow to
> plowland areas (expressed either as proportions that add up to 1 or as
> absolute areas in Ha) within every population and population density
> (individual/area or absolute numbers). Any ideas on what kind of a model
> could be suitable for this dataset and for testing the hypothesis that
> cranial dimensions are predicted by these independent variables (habitat
> structure and abundance or population density)?
> Best regards,Milos BlagojevicDepartment for Biology and Ecology,Faculty of
> Science,Kragujevac,Serbia
> Here is sample data (with absolute numbers but they can be expressed as
> proportions as well)
> PCx score population abundance forest plow meadow -0.6033788 ADA_BEC
> 1500 61154 12000 32313 0.3250981 ADA_BEC 1500 61154
> 12000 32313 0.5577059 ADA_BEC 1500 61154 12000 32313
> -0.1596194 PM 23980 89499 579870 8178 -1.3089952 PM
> 23980 89499 579870 8178 -2.1693392 SP 2500 38000
> 47098 432432 -0.9669080 SP 2500 38000 47098 432432
> -1.8857842 SP 2500 38000 47098 432432 0.7242678 DKN
> 65908 181133 12400 1233 1.6815373 DKN 65908 181133
> 12400 1233
>
> ----- End forwarded message -----
>
>
>
--
Pere M. Parés-Casanova PhD
Associate Professor
Dep. of Animal Production
University of Lleida
Avda. Rovira Roure, 191
25198 Lleida (SPAIN)
Tel:973706460
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