Population dynamics in a cyclic environment: consequences of cyclic food abundance on tawny owl reproduction and survival



: Karell P, Ahola K, Karstinen T, Zolei A, Brommer JE

Publisher: WILEY-BLACKWELL

: 2009

Journal of Animal Ecology

JOURNAL OF ANIMAL ECOLOGY

: J ANIM ECOL

: 78

: 5

: 1050

: 1062

: 13

: 0021-8790

DOI: https://doi.org/10.1111/j.1365-2656.2009.01563.x


6. Model and data agreed that the vole cycle drives the dynamics of this avian predator by limiting the recruitment of new breeders during the low phase. Population dynamics hence differ not only from the classic example of the species in a more temperate region in the UK where the number of territories is stable across years, but also from the dynamics of other avian vole predators in Fennoscandia where the recurring crash in vole abundance drastically lowers adult survival thereby creating vacancies.



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