R/milk.R

In brouwern/wildlifeR: Wildlife biology and animal ecology datasets with example analyses.

#' Mammal milk dataset
#'
#' A dataset on the nutritional composition of mammalian milk.
#'
#' @format A data frame with 23 columns, including:
#' \describe{
#'   \item{order}{Taxonomic order}
#'   \item{family}{Taxonomic family}
#'   \item{spp}{Species}
#'   \item{mass.female}{Mean mass of female}
#'   \item{gestation.month}{Duration of gestation in months (how long pregnant)}
#'   \item{lacatation.months}{duration of lacation in months (how long until offspring weaned)}
#'   \item{mass.litter}{Total mass of litter (all offspring combined)}
#'   \item{repro.output}{Number of offspring}
#'   \item{dev.stage.at.birth}{Developemental stage at birth}
#'   \item{diet}{Diet of organism}
#'   \item{arid}{Does it live in a desert or other arid biome?}
#'   \item{biome}{Type of biome}
#'   \item{N}{Number of...?}
#'   \item{lactation.stage.orig}{?}
#'   \item{dry.matter}{Dry matter content of milk}
#'   \item{fat}{Fat content of milk}
#'   \item{fat.revised}{?}
#'   \item{protein}{Protein content of milk}
#'   \item{sugar}{suger content of milk}
#'   \item{energy}{energetic value of milk}
#'   \item{ref}{refernece for original source of data on this species}
#'   \item{gest.month.NUM}{...}
#'   \item{lacat.mo.NUM}{...}
#'
#' }
#' @references Skibiel et al.  2013.  The evolution of the nutrient composition of
#' mammalian milks.  Journal of Animal Ecology.  82:1254–1264 DOI: 10.1111/1365-2656.12095
#' http://onlinelibrary.wiley.com/doi/10.1111/1365-2656.12095/full
#'
#' @source \url{http://www.diamondse.info/}

"milk"