R/orca.R

In csquares: Concise Spatial Query and Representation System (c-Squares)

#' Killer whale realm
#'
#' @format ## `orca`
#' The `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:
#' \describe{
#'   \item{csquares}{c-squares codes indicating spatial grid cells}
#'   \item{orcinus_orca}{`logical` values indicating whether the corresponding c-squares
#'   grid cell belongs to the killer whales (Orcinus orca) biogeographic realm or not.}
#' }
#' @references
#' * Costello, M.J. (2017); University of Auckland \doi{10.17608/k6.auckland.5086654}
#'   Licence [CC BY 4.0](https://creativecommons.org/licenses/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}
"orca"