Simulated line transect survey of duck nests, designed to reproduce the data of Figure 2 in Anderson and Pospahala (1970).
Format
A data.frame with 534 rows and 7 variables
Region.Labelstrata names (single stratum in this instance)Areasize of refuge (0 in this case, actual size 60km^2)Sample.Labeltransect IDEffortlength of transects (km)objectnest IDdistanceperpendicular distance (m)Study.Areaname of wildlife refuge
Source
Simulated data, from the distance sampling introductory course, Centre for Research into Ecological & Environmental Modelling, University of St Andrews.
Details
The Monte Vista National Wildlife Refuge is in southern Colorado in the USA at an altitude of roughly 2400m.
References
Anderson, D. R., and R. S. Pospahala. 1970. Correction of bias in belt transect studies of immotile objects. The Journal of Wildlife Management 34 (1): 141–146. doi:10.2307/3799501