Software in Animal Breeding I just saw this link - apparently most of the links on it are dead but its worth a try PDF: GIS Solutions by the Kruger National Parks GIS Department POP-II Population Modelling Program Its a program to model population variations (adult, sub-adult,male female etc) when you input mortality rate,sex ratio, harvest(culling) rate etc. Got e-maild the program,so let me know if you want to check it out (Jeff) source: International edition of IEEE Spectrum, February 2006, pp 41 - 43 (Collen) Riskman Software Another population modeling program for wildlife.