polar {good} | R Documentation |
Polar bear litter size data set
Description
This data set corresponds to live-captured polar bears from late March 1992 to beginning of May 2017 at Svalbard, Norway.
Usage
data(polar)
Format
A data frame with 231 rows and 7 columns.
- year
Catch year
- days
Number of the day of the catch year
- id
Unique specimen id
- age
Age of the specimen, estimated using premolar tooth
- agecat
Categorized age of the specimen
- length
Body straight length (cm)
- cubnumber
Litter size
Source
Folio, Dorinda Marie et al. (2019), Data from: How many cubs can a mum nurse? Maternal age and size influence litter size in polar bears, Dryad, Dataset.
References
Folio D. M., Aars J., Gimenez O., Derocher A. E., Wiig O. and Cubaynes S. (2019) How many cubs can a mum nurse? Maternal age and size influence litter size in polar bears, Biology letters, 15.
Examples
data(polar)
head(polar)
[Package good version 1.0.2 Index]