% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/AVONET.R
\docType{data}
\name{AVONET}
\alias{AVONET}
\title{Bird Morphological Traits from AVONET}
\format{
A data frame with 11,009 rows and 14 variables:
\describe{
  \item{species}{
    Character. Scientific species name.
  }
  \item{genus}{
    Character. Genus name.
  }
  \item{family}{
    Character. Family name based on BirdLife International taxonomy.
  }
  \item{Beak.Length_Culmen}{
    Numeric. Beak length measured along the culmen from the beak tip
    to the base of the skull, mm.
  }
  \item{Beak.Length_Nares}{
    Numeric. Beak length from the anterior edge of the nares to the
    beak tip, mm.
  }
  \item{Beak.Width}{
    Numeric. Beak width at the anterior edge of the nares, mm.
  }
  \item{Beak.Depth}{
    Numeric. Beak depth at the anterior edge of the nares, mm.
  }
  \item{Tarsus.Length}{
    Numeric. Tarsus length from the posterior notch between the tibia
    and tarsus to the end of the last scale of the acrotarsium, mm.
  }
  \item{Wing.Length}{
    Numeric. Length from the carpal joint to the tip of the longest
    primary feather on the unflattened wing, mm.
  }
  \item{Kipps.Distance}{
    Numeric. Distance between the tip of the first outermost secondary
    feather and the tip of the longest primary feather, mm. This value
    was measured directly or calculated as \code{Wing.Length -
    Secondary1}.
  }
  \item{Secondary1}{
    Numeric. Length from the carpal joint to the tip of the first
    outermost secondary feather, mm.
  }
  \item{Hand-Wing.Index}{
    Numeric. Hand-wing index, calculated as
    \code{100 * Kipps.Distance / Wing.Length}; dimensionless.
  }
  \item{Tail.Length}{
    Numeric. Distance from the tip of the longest rectrix to the point
    where the two central rectrices emerge from the skin, mm.
  }
  \item{Mass}{
    Numeric. Species-level mean body mass across available individuals,
    including both sexes, g.
  }
}
}
\source{
AVONET data repository
(\url{https://figshare.com/s/b990722d72a26b5bfead})
}
\usage{
AVONET
}
\description{
A species-level compilation of 11 quantitative morphological traits
obtained from AVONET. The dataset also includes genus and family
information based on BirdLife International taxonomy. Each row
represents one bird species.
}
\details{
Values are species-level summaries provided by AVONET. The four beak
measurements describe feeding morphology, whereas measurements of the
tarsus, wing, secondary feathers, and tail describe locomotor morphology.
The hand-wing index measures wing elongation and is commonly used as an
indicator of flight efficiency and dispersal ability. Body mass represents
overall body size.

This PNC data object contains the 11 morphological traits and associated
taxonomic information. The ecological and geographical variables included
in the complete AVONET release are not included. Missing values are
represented by \code{NA}.
}
\examples{
data("AVONET")
head(AVONET)

}
\references{
Tobias, J. A., Sheard, C., Pigot, A. L., et al. (2022).
AVONET: morphological, ecological and geographical data for all birds.
Ecology Letters, 25, 581–597. \doi{10.1111/ele.13898}
}
\keyword{datasets}
