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Estimation of stage‐specific developmental times and survivorship from stage frequency data
Author(s) -
Schneider S. M.,
Ferris H.
Publication year - 1986
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/bf02515454
Subject(s) - stage (stratigraphy) , erlang (programming language) , statistics , data set , goodness of fit , survivorship curve , set (abstract data type) , estimation , developmental stage , mathematics , biology , computer science , psychology , paleontology , developmental psychology , genetics , management , cancer , economics , programming language , functional programming , theoretical computer science
Summary An algorithm for estimating mean stage durations, the standard deviations associated with the means, and stage‐specific survivorships from stage frequency data is presented. The algorithm is based on an age‐structured, distributed delay simulation model which uses Erlang distributions to determine the probability of maturity for individuals in each stage. If the data set extends beyond the first generation, the algorithm requires a fecundity rate, as well as stage frequencies, as input. Goodness‐of‐fit was measured using a weighted least squares calculation summed over all observed stages and all sampling dates.