Killer whale realm
orcaorcaThe orca object is a Killer whale realm data set extracted from the data as provided
by Costello (2017) and published by Costello et al. (2017).
It is a data frame with 2,058 rows and two columns:
c-squares codes indicating spatial grid cells
logical values indicating whether the corresponding c-squares
grid cell belongs to the killer whales (Orcinus orca) biogeographic realm or not.
Costello, M.J. (2017); University of Auckland doi:10.17608/k6.auckland.5086654 Licence CC BY 4.0
Costello M.J., Tsai P., Wong P.S., Cheung A.K.L, Basher Z. & Chaudhary C. (2017); "Marine biogeographic realms and species endemicity" Nature Communications 8, 1057 doi:10.1038/s41467-017-01121-2