BeeIT: Tools to estimate tongue length

#' Bee tongue length measurments
#' 
#' A dataset containing the mean bee tongue length for >100 species.
#' 
#' \itemize{
#'   \item Family: Family of bee
#'   \item genus: Genus of bee  
#'   \item species: species of bee
#'   \item tongue_type: long (Apidae and Megachilidae) or short (Andrenidae, Colletidae, Halictidae) 
#'   \item sample_size: number of individuals on which bee tongues were measured 
#'   \item mean_tongue_length_mm: mean tongue length (prementum + glossa) in millimeters across individuals
#'   \item mean_IT_length_mm: mean intertegular distance in millimeters across individuals within a species
#'   \item mean_glossa_length_mm: mean glossa length in millimeters across individuals within a species
#'   \item mean_prementum_length_mm: mean glossa length in millimeters across individuals within a species 
#'   \item residuals_tongue: residuals from model that includes bee family and intertegular distance (log-transformed) and tongue length (log-transformed) as response variables.
#'   \item residuals_glossa: residuals from model that includes bee family and intertegular distance (log-transformed) and glossa length (log-transformed) as response variables.
#'   \item residuals_prementum: residuals from model that includes bee family and and intertegular distance (log-transformed) as predictor variables and prementum (log-transformed) as response variables.
#'   }
#' 
#' @docType data
#' @keywords datasets
#' @name tongues
#' @usage data(tongues)
#' @format A data frame with 101 rows and 11 variables
"tongues"