Introduction to Conservation Genetics

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Links to Vortex and Vortex datafile downloads

Vortex is a population viability analysis software package the uses a stochastic, individual based model to project populations into the future. Vortex can be downloaded from its web site for free without a manual. Manuals are available from the Conservation Breeding Specialst Group's web site for a small cost. For more information, see the VORTEX and CBSG web sites (link below).


Go to the VORTEX web site

Go to the Conservation Breeding Specialist Group's (CBSG) web site for information on how to order the VORTEX manual.

We are providing several demonstration vortex input files for the purposes of class exercises only. Some have been modified to suit the specific purpose of the exercises. See the Source for original data and respect the ownership of these data by citing and checking the Source for the original parameter values. The files have been verified to work with Vortex version 8.42 but do not work with the windows versions 9.0 or more recent releases.

 

Download file

Description Source
ALL.ZIP All VORTEX input data files listed below  
GLT.ZIP Golden lion tamarin VORTEX input file Data modified for modeling purposes from Dietz and Baker; Ballou et al. 1998
WOOD_HEN.ZIP Lord Howe Island Wood hen VORTEX input file Brook et al. 1997.
P_PIGEON.ZIP Pink pigeon VORTEX input file  
C_SILVER.ZIP Capricorn silvereye VORTEX input file Brook et al. 1998

 

Sources of Vortex data:

Ballou et al. 1998: Ballou, J. D., R. C. Lacy, S. Ellis, D. Kleiman and A. Rylands (eds). 1998. Leontopithecus II: The Second Population and Habitat Viability Analysis for Lion Tamarins. Apple Valley, MN: Conservation Specialist Breeding Group/ IUCN/SSC.

Brook et al. 1997: Brook, B.W., L. Lim, R. Harden & R. Frankham. 1997a. How secure is the Lord Howe Island woodhen? A population viability analysis using VORTEX. Pacific Conserv. Biol. 3, 125-133.

Brook et al. 1998: Brook, B.W. & J. Kikkawa. 1998. Examining threats faced by island birds: a population viability analysis on the Capricorn silvereye using long-term data. J. Appl. Ecol. 35, 491-503.