Population fluctuations and survival of Great Tits Par us major dependent on food supplied by man in winter

• Published in: Ibis
• Main Author: ORELL, MARKKU
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1989
• Subjects: Animal Science and Zoology; Ecology, Evolution, Behavior and Systematics; Taskila; Northern Finland
• Online Access: http://dx.doi.org/10.1111/j.1474-919x.1989.tb02750.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1989.tb02750.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1989.tb02750.x

The 16‐year data of a Great Tit population, breeding and overwintering in a nest box area at Oulu, northern Finland, were studied to reveal the factors governing the annual fluctuations in density and local survival. The breeding density at Taskila was high after a cold spring (March‐April) and a wa...