House Sparrow data set
A data set on a wild population of house sparrow Passer domesticus.
A data frame with 116 observations on the following 7 variables.
unique individual identifier
the year of breeding
the age of the individual
equals 1 if the individual survives, otherwise 0
the number of recruits produced, i.e. offspring that survives to the next breeding season
the body mass of the individuals at fledgling, i.e. when the bird was ready to leave the nest
the tarsus length of the individuals at fledgling, i.e. when the bird was ready to leave the nest
Further details on the data set is provided by Engen et al. 2012.
Engen, S., Saether, B.-E., Kvalnes, T. and Jensen, H. 2012. Estimating fluctuating selection in age-structured populations. Journal of Evolutionary Biology, 25, 1487-1499.
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