Estimates population sizes, standard errors, and confidence intervals for the bias-corrected Petersen and the Bailey binomial estimators.
mrN.single(M = NULL, C = NULL, R = NULL, alpha = 0.05)
Dataframe containing the population estimates (N), standard errors of N, the lower confidence limits (LCI), and the upper confidence limits(UCI).
Number of marked animals released
Number of animals captured
Number of animals recaptured
alpha level for confidence intervals
Gary A. Nelson, Massachusetts Division of Marine Fisheries gary.nelson@mass.gov
The bias-corrected Petersen estimator and its variance (Seber 2002: p.60), and the Bailey binomial estimator and its variance (Seber 2002: p.61) are calculated. The hypergeometric distribution is used to estimate confidence intervals for the Petersen model and the binomial distribution is used to estimate confidence intervals for the Bailey model.
Seber, G. A. F. 2002. The Estimation of Animal Abundance and Related Parameters, Second Edition. The Blackburn Press, Caldwell, New Jersey. 654 p.