| wryneck {IPMbook} | R Documentation |
Data from wrynecks in Switzerland, 2002-2006
Description
The data contain information about the survival of 181 broods of wrynecks (Jynx torquilla) collected in the Valais (Swiss Alps) from 2002-2006 in nestboxes. Dates are recorded such that day 1 is May 16.
Usage
data(wryneck)Format
wryneck is a data frame with 5 columns:
- f
day of first detection of nestlings.
- j
day of the latest check when nestlings were present.
- k
day of the last check; this is the same as 'j' if nestlings fledged successfully, or the day when the nest was found to have failed.
- x
1 if nestlings fledged successfully, otherwise 0.
- age
the age of the nestlings on first detection in number of days.
Source
Swiss Ornithological Institute
References
Geiser, S., R. Arlettaz, M. Schaub (2008) Impact of weather variation on feeding behaviour, nestling growth and brood survival in Wrynecks Jynx torquilla. Journal of Ornithology 149, 597-606.
Schaub, M., Kéry, M. (2022) Integrated Population Models, Academic Press, section 4.4.6.
Examples
data(wryneck)
str(wryneck)