Journal
ECOLOGY
Volume 88, Issue 8, Pages 1970-1976Publisher
ECOLOGICAL SOC AMER
DOI: 10.1890/06-1246.1
Keywords
Bayesian model; Glanville fritillary; mark-recapture data; Melitaea cinxia; random effects model; senescence
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We describe a Bayesian random effects model of mark-recapture data that accounts for age-dependence, in survival and individual heterogeneity in capture probabilities and survival. The model is applied to data on the Glanville fritillary butterfly (Melitaea cinxia) collected from a population enclosed in a large cage in the field. The cage population consisted of a mixture of butterflies originating from newly established and old populations in a large metapopulation in the Aland Islands in Finland. The explanatory variables in the model included the effects of temperature, sex, and population type (new vs. old) on capture probabilities, and the effects of age, sex, population type, and day vs. night op survival. We found that mortality rate increased with age, that mortality rate was much higher during the day than during the night, and that the life span of females originating from newly established populations was shorter than the life span of females from old populations. Capture probability decreased with increasing temperature and decreased with increasing mobility of individuals.
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