AArk Founder Calculation Tool

Type in a species name, and then select the values for Age to reproductive maturity, No. of reproductive years and Management type for that species from the options below. Finally, click the Show results button to display the number of founders that should be collected, and target population sizes for that type of reproductive model. Click the Clear values button to enter new information.

The information contained in this tool is from Amphibian Ark's Amphibian Population Management Guidelines, which can be found online at:

www.amphibianark.org/pdf/Aark material/AArk Amphibian Population Management Guidelines.pdf

For additional population management advice for amphibians, please contact Kristine Schad (Kristine.Schad@eaza.net) or Kristin Leus (kristin@cbsgeurope.eu).

Species name:     

Common name:     

Values entered by:  

Age to reproductive maturity:


No. of reproductive years:
Management type: