𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Low Repeatability of Laying Date and Clutch Size in Tengmalm's Owl: An Adaptation to Fluctuating Food Conditions

✍ Scribed by Erkki Korpimäki

Book ID
124276551
Publisher
JSTOR
Year
1990
Weight
856 KB
Volume
21
Category
Article
ISSN
0030-5693

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Fluctuating food supply affects the clut
Fluctuating food supply affects the clutch size of Tengmalm's owl independent of laying date
✍ Erkki Korpimäki; Harri Hakkarainen 📂 Article 📅 1991 🏛 Springer-Verlag 🌐 English ⚖ 1022 KB

In western Finland, yearly median laying dates of Tengmalm's owls varied from 14 March to 27 April during 1973-1989 and were negatively correlated with the winter densities of voles. Yearly mean clutch sizes varied from 4.0 to 6.7 and were more closely related to the spring than to the winter densit

Environmental, parental and adaptive var
Environmental, parental and adaptive variation in egg size of Tengmalm's owls under fluctuating food conditions
✍ Harri Hakkarainen; Erkki Korpimäki 📂 Article 📅 1994 🏛 Springer-Verlag 🌐 English ⚖ 668 KB

We studied egg size variation of Tengmalm's owls in western Finland during 1981-1990. The owls fed on voles whose population fluctuated in a predictable manner: low (1981, 1984, 1987, 1990), increase (1982, 1985, 1988) and peak (1983, 1986, 1986) phases of the cycle occurred every third year. Eggs w