6533b85efe1ef96bd12c058b
RESEARCH PRODUCT
Spatial Mark-Recapture Method in the Estimation of Crayfish Population Size
Antti PenttinenPäivi Partanensubject
Statistics and Probabilityeducation.field_of_studyPopulation sizePopulationEstimatorGeneral MedicineTrappingCrayfishPoint processMark and recaptureStatisticsStatistics Probability and UncertaintySpatial dependenceeducationMathematicsdescription
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 onc 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-01-01 | Biometrical Journal |