% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/AmphiBIO.R
\docType{data}
\name{AmphiBIO}
\alias{AmphiBIO}
\title{AmphiBIO Amphibian Trait Data}
\format{
A data frame with 6,776 rows and 15 variables:
\describe{
  \item{species}{
    Character. Full binomial species name.
  }
  \item{genus}{
    Character. Genus name.
  }
  \item{family}{
    Character. Taxonomic family.
  }
  \item{Body_mass_g}{
    Numeric. Maximum adult body mass, g.
  }
  \item{Age_at_maturity_min_y}{
    Numeric. Minimum age at maturation or sexual maturity, years.
  }
  \item{Age_at_maturity_max_y}{
    Numeric. Maximum age at maturation or sexual maturity, years.
  }
  \item{Body_size_mm}{
    Numeric. Maximum adult body size, mm.
  }
  \item{Size_at_maturity_min_mm}{
    Numeric. Minimum body size at maturation or sexual maturity, mm.
  }
  \item{Size_at_maturity_max_mm}{
    Numeric. Maximum body size at maturation or sexual maturity, mm.
  }
  \item{Longevity_max_y}{
    Numeric. Maximum lifespan, years.
  }
  \item{Litter_size_min_n}{
    Numeric. Minimum number of offspring or eggs per clutch.
  }
  \item{Litter_size_max_n}{
    Numeric. Maximum number of offspring or eggs per clutch.
  }
  \item{Reproductive_output_y}{
    Numeric. Maximum number of reproductive events per year.
  }
  \item{Offspring_size_min_mm}{
    Numeric. Minimum offspring or egg size, mm.
  }
  \item{Offspring_size_max_mm}{
    Numeric. Maximum offspring or egg size, mm.
  }
}
}
\source{
AmphiBIO data repository:
\doi{10.6084/m9.figshare.4644424}
}
\usage{
AmphiBIO
}
\description{
A processed subset of the AmphiBIO database containing 12 quantitative
morphological, life-history, and reproductive traits. The dataset contains
one record for each of 6,776 amphibian species.
}
\details{
The source AmphiBIO database contains 17 amphibian ecological traits. This
processed dataset retains 12 numeric variables selected for use with PNC.
These variables include continuous measurements and count variables.

Species names and higher taxonomy were retained from AmphiBIO. The source
taxonomy follows Amphibian Species of the World version 5.5. Trait values
and units were retained as provided in the source database. No additional
unit conversions, transformations, or imputations were performed. Missing
values are represented by \code{NA}.

Maximum body size is generally reported as snout-vent length for Anura and
as total length for Gymnophiona and Caudata. For some Caudata records, only
snout-vent length was available in the source database.

Offspring size generally refers to egg-yolk diameter, although some source
studies measured total egg diameter including the surrounding jelly
capsule. The measurement convention cannot always be distinguished from the
processed data.

Trait coverage varies substantially among variables. In this dataset,
57 species have complete values for all 12 selected traits, whereas
796 species have no observed values for any of the selected traits.
Missing-data coverage and the dependence between paired minimum and maximum
variables should therefore be considered when selecting variables for
multivariate analyses.
}
\examples{
data(AmphiBIO)

dim(AmphiBIO)
head(AmphiBIO[, c(
  "species",
  "Body_size_mm",
  "Reproductive_output_y"
)])

}
\references{
Oliveira, B. F., Sao-Pedro, V. A., Santos-Barrera, G., Penone, C., and
Costa, G. C. (2017). AmphiBIO, a global database for amphibian ecological
traits. \emph{Scientific Data}, 4, 170123.
\doi{10.1038/sdata.2017.123}
}
\keyword{datasets}
