Premium
Spatial Mark‐Recapture Method in the Estimation of Crayfish Population Size
Author(s) -
Partanen Päivi,
Penttinen Antti
Publication year - 1995
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710370811
Subject(s) - crayfish , mark and recapture , estimator , statistics , population size , population , estimation , mathematics , quadratic equation , variance (accounting) , trapping , point estimation , biology , ecology , geometry , demography , engineering , systems engineering , accounting , sociology , business
The mark‐recapture method is considered for estimation of population size of slowly moving animals like crayfish. The Petersen type estimator for closed population is generalized for situations where recaptures are spatially dependent between the capture sites, and its variance approximation is derived using point processes as models for the population. The method of quadratic forms is suggested to be used as variance estimator. Finally, a trapping design is proposed where one trap at recapture is replaced by four adjacent traps. A simulation experiment is performed to explain the robusticity of the new trapping design against movements of animals.