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Integrating Mark–Recapture–Recovery and Census Data to Estimate Animal Abundance and Demographic Parameters
Author(s) -
Besbeas P.,
Freeman S. N.,
Morgan B. J. T.,
Catchpole E. A.
Publication year - 2002
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.2002.00540.x
Subject(s) - census , mark and recapture , productivity , abundance (ecology) , geography , multinomial logistic regression , statistics , demography , ecology , biology , population , mathematics , economics , sociology , macroeconomics
Summary. In studies of wild animals, one frequently encounters both census and mark‐recapture‐recovery data. We show how a state‐space model for census data in combination with the usual multinomial‐based models for ring‐recovery data provide estimates of productivity not available from either type of data alone. The approach is illustrated on two British bird species. For the lapwing, we calibrate how its recent decline could be due to a decrease in productivity. For the heron, there is no evidence for a decline in productivity, and the combined analysis increases significantly the strength of logistic regressions of survival on winter severity.