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Survival of adult Great Tits Parus major in relation to sex and habitat; a comparison of urban and rural populations
Author(s) -
HORAK PEETER,
LEBRETON JEANDOMINIQUE
Publication year - 1998
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1998.tb04380.x
Subject(s) - parus , habitat , biology , demography , ecology , geography , sociology
Capture‐recapture data were obtained for two populations of Great Tits Parus major in southeast Estonia, one rural, the other urban. These data were used to estimate and compare survival probabilities between sexes and populations using capture‐recapture statistical models. As is generally assumed, urban birds survived better than rural ones. Females survived better than males, and the survival probabilities varied over time. The three sources of variation considered (sex, habitat and time) had additive effects on survival probability on a logit scale. The estimated annual survival probabilities varied from 0.19 to 0.70. The averages over time ranged from 0.26 to 0.47 and were generally lower than published estimates from other populations. The proportion of yearling breeders was higher among females than among males, contrary to what could have been deduced from survival patterns, and is possibly a consequence of complex recruitment mechanisms.