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A simulation study of three methods for estimating selective values and survival rates from recapture data
Author(s) -
Manly B. F. J.
Publication year - 1978
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02512971
Subject(s) - mark and recapture , statistics , biology , point estimation , estimation , confidence interval , relative survival , mathematics , demography , population , cancer registry , management , cancer , sociology , economics , genetics
Summary The methods of Manly (1973), Manly (1975) and Manly (1977) for estimating survival rates and relative survival rates from recapture data have been compared by computer simulation. In the simulations batches of two types of animal were “released” at one point in “time” and recapture samples were taken at “daily” intervals from then on. The various methods of estimation were then used to estimate, the daily survival rates of type 1 and type 2 animals, and also the survival rate of the type 2 animals relative to the type 1 animals. Simulation experiments were designed to examine (a) the bias in estimates, (b) the relative precision of different methods of estimation, (c) the validity of confidence intervals for true parameter values, and (d) the effect on estimates of the failure of certain assumptions.