-------- Original Message -------- Subject: Re: image taking for geometric morphometrics Date: Tue, 6 Sep 2011 09:12:13 -0400 From: andrea cardini <[email protected]> To: [email protected] CC: [email protected] Dear Darren, there is something on photographic techniques in an old paper of mine (Cardini A., Tongiorgi P., 2003 - Yellow-bellied marmots in the shape space: sexual dimorphism, growth and allometry of the mandible. Zoomorphology, 122: 11-23 - pdf at: http://sites.google.com/site/hymsfme/drandreacardini/ac-publications) and almost certainly in some of those by Marco Corti, Carlo Fadda and others. Dominique Adriaens has written a protocol for data collection on fishes, if I remember well, and you might find something interesting also in this paper (Acta Zoologica Academiae Scientiarum Hungaricae 44 pp. 73-96, 1998) and in the help file of MorphoJ, where Chris describes how to test different sources of errors in the Procrustes ANOVA. Try to be careful in standardizing your protocol, check for photographic distortions (a mm paper frame around the center of the picture where the fish is may help) and test it first on a subsample keeping in mind the variety of conditions you may find in the field or in museums when you collect the data (unless you do everything in just one lab). There's many fish biologists on the list and I am sure you'll get more help from them. Good luck. Cheers Andrea At 08:35 06/09/2011 -0400, you wrote:
-------- Original Message -------- Subject: image taking for geometric morphometrics Date: Mon, 5 Sep 2011 19:18:07 -0400 From: Darren Parsons <[email protected]> To: <[email protected]> Hi there, I am just starting out with geometric morphometrics, so was hoping someone could point me towards any documents that could get me started. My specific query is around the image taking process. This is because I may not be able to analyse the images for some time (images will be of fish ~ 40 cm in length). So, for now, I would like to ensure that I take images that will allow me to do 2D analysis later on. Is there a document/book/previous string of postings that outlines the best image taking process/equipment in simple terms? I have "Zelditch, Geometric morphometrics for biologists : a primer" on order from my library? Any help would be greatly appreciated. Thanks, Darren (please send replies to [email protected] <mailto:[email protected]>) Darren Parsons National Institute of Water and Atmospheric Research (NIWA) 41 Market Place, Private Bag 99940, Auckland, New Zealand ph: +64-9-375 4531 fax: +64-9-375 2051 cell: 021 170 1724 email: [email protected] <mailto:[email protected]> Please consider the environment before printing this email. NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd.
