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Further improvements to a method for analysing stage‐frequency data
Author(s) -
Manly B. F. J.
Publication year - 1985
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/bf02515470
Subject(s) - stage (stratigraphy) , biology , statistics , grasshopper , population , sampling (signal processing) , instar , developmental stage , ecology , computer science , mathematics , demography , telecommunications , larva , psychology , paleontology , developmental psychology , sociology , detector
Summary An iterative procedure for correcting stage‐frequency data is described to allow for situations where the period during which a population is sampled begins after some individuals have entered stage 2 or ends before all individuals are dead. The reason for correcting data in this way is to enable Kiritani and Nakasuji's method for estimating stage‐specific survival rates, with extensions proposed by Manly (1976, 1977), to be used to analyse the data. The proposed procedure is illustrated on data obtained by sampling a population of the grasshopper Chorthippus brunneus passing through four instar stages to reach the adult stage.