This package implements mark-recapture distance sampling methods as described in D.L. Borchers, W. Zucchini and Fewster, R.M. (1988), "Mark-recapture models for line transect surveys", Biometrics 54: 1207-1220. and Laake, J.L. (1999) "Distance sampling with independent observers: Reducing bias from heterogeneity by weakening the conditional independence assumption." in Amstrup, G.W., Garner, S.C., Laake, J.L., Manly, B.F.J., McDonald, L.L. and Robertson, D.G. (eds) "Marine mammal survey and assessment methods", Balkema, Rotterdam: 137-148 and Borchers, D.L., Laake, J.L., Southwell, C. and Paxton, C.L.G. "Accommodating unmodelled heterogeneity in double-observer distance sampling surveys". 2006. Biometrics 62:372-378.)
Details
Examples of distance sampling analyses are available at http://examples.distancesampling.org/.
For help with distance sampling and this package, there is a Google Group https://groups.google.com/forum/#!forum/distance-sampling.