Medium ground finches (Geospiza fortis) marked and recaptured at El
Garrapatero, Santa Cruz Island, Galapagos. Each row is a bird in a year it
was seen, from 2004 to 2010, with whether it was seen again in any later
year (apparent survival). Built by data-raw/finch_yearly.R.
Format
A data frame with 1087 rows and 7 variables:
- band
Band code of the bird.
- year
Year the bird was seen.
- survived
1if the bird was seen again in any later year up to 2018, the last in the file,0otherwise. Death cannot be told from emigration.- beak_pc1
Beak size: the first principal component of the three beak measurements over all the birds, signed so that larger beaks score higher.
- beak_length
Median beak length (mm).
- beak_width
Median beak width (mm).
- beak_depth
Median beak depth (mm).
Source
Beausoleil, M.-O. et al. (2019) Temporally varying disruptive selection in the medium ground finch (Geospiza fortis). Proceedings of the Royal Society B 286, 20192290. doi:10.1098/rspb.2019.2290 . Data: doi:10.5061/dryad.zcrjdfn6q .