Should animal numbers fall beneath a predetermined threshold, contracts would be voided, and money devoted to anticipated recovery programs. If the species thrives, investors would be rewarded, with profits growing in direct proportion to species health (Wired)."
Not sure they picked a good timing to publicize the approach--many will probably turn around when seeing the word "derivative". On the other hand, I do like their idea of risk-sharing and incentive creating.
P.S. I didn't find the article in the March issue of Frontier though.