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Estimation of Offspring Production from a Limited Number of Stage‐Structured Censuses
Author(s) -
Bakke Øyvind,
Lorentsen SveinHåkon
Publication year - 1999
Publication title -
biometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.298
H-Index - 130
eISSN - 1541-0420
pISSN - 0006-341X
DOI - 10.1111/j.0006-341x.1999.00321.x
Subject(s) - estimation , offspring , maximum likelihood , statistics , population , mathematics , econometrics , biology , demography , engineering , pregnancy , genetics , sociology , systems engineering
Summary. We propose a procedure for maximum likelihood estimation of the number of animals or offspring in a closed population where the individuals counted go through stages or age‐groups. Application of the procedure requires knowledge of the distributions of the stage durations. A procedure for maximum likelihood estimation of those based on marked animals is also given. The procedures are illustrated by applying them to gray seal ( Halichoerus grypus ) data from Froan Nature Reserve, Central Norway, from the breeding seasons 1990–1999.