If you feel that what you learned in the AnthroTree Workshop contributed significantly to analyses in a published paper or talk, we would be grateful if you would acknowledge the workshop and funding source. 

Something like the following would work, "For training in phylogenetic comparative methods, we thank the AnthroTree Workshop (supported by NSF BCS-0923791)." 

And please let Charlie Nunn know that the AnthroTree workshop was acknowledged so that he can include this on NSF reports related to the funding.

Thank you! This will help to ensure continued support of the workshop.