Farr, M.T., Green, D.S., Holekamp, K.E., and Zipkin, E.F. (In Prep) Integrating distance sampling with presence only data.

I am developing an integrated species distribution model that combines presence only data from opportunistic surveying with distance sampling. Species distribution modeling (SDM) uses ecological covariates and occurrence data to predict a species’ distribution. However, SDMs often return biased estimates due to imperfect detection and sampling bias, but model estimates can be improved by integrating more structured sampling into the model. I am working with David Green and the Holekamp lab to demonstrate the use of ISDMs by combining presence only data and distance sampling to evaluate human disturbance and apex predator decline on black-backed jackal distribution.