The data contains anonymized recruitment information for boreal caribou populations 'A', 'B' and 'C' with staggered year ranges, an internal gap (B missing 2009-2010), and unobserved year placeholder rows (2016 for all populations). Designed to test multi-population analysis, latent random effects for missing year-population combos, and unobserved year prediction. Filter to single population or remove placeholder rows (where Month is NA) as needed. This dataset follows the methodology described in DeCesare et al. (2012) for estimating population growth rates using calf/cow age ratios.
Format
A tibble with columns:
- PopulationName
Name of the population
- Year
The year the observation occurred
- Month
The month the observation occurred
- Day
The day the observation occurred
- Cows
The number of cows counted in the group
- Bulls
The number of bulls counted in the group
- UnknownAdults
The number of adults which could not be sexed in the group
- Yearlings
The number of yearlings counted in the group
- Calves
The number of calves counted in the group
Details
The data is released under the Open Government Licence - Alberta