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#' Glomel vegetation dataset
#'
#' Vegetation data set to illustrate Ecological Quality Assessment (EQA)
#'
#' The nature reserve of Landes et Marais de Glomel (Brittany, France) is
#' composed of temperate Atlantic wet heaths whose reference state is commonly
#' considered dominated by plant communities associated to acid, nutrient poor soils
#' that are at least seasonally water logged and dominated by \emph{Erica tetralix} and
#' \emph{E. ciliaris}. The data set consists of 23 rows and 46 columns.
#' The first five stations (rows) were used to define the reference
#' envelope, and the next 18 stations (rows) where those for which the conservation status
#' was to be assessed.
#'
#' @encoding UTF-8
#' @format Glomel is an object of class data.frame composed of 23 observations and 46 variables.
#'
#' \describe{
#' \item{ID}{Station ID.}
#' \item{Ref}{Logical flag to indicate stations used to define the reference envelope.}
#' \item{Complementary}{Comments regarding the quality of the ecosystem.}
#' \item{...}{Percent cover values (derived from Braun-Blanquet ordinal scale) for 43 species of vascular plants.}
#' }
#'
#' @name glomel
#' @aliases glomel
#' @docType data
#' @author Aline Bifolchi, Réserve Naturelle des landes et marais de Glomel
#' @keywords data
#'
#' @seealso \code{\link{envelope}}
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#' Glenan dataset
#'
#' Maerl bed data set to illustrate Ecological Quality Assessment (EQA)
#'
#' Experimental data set built by Tauran et al. (2020) to study the impact of fishing dredges
#' and varying fishing pressures on maerl beds, in the bay of Brest (Brittany, France).
#'
#' @encoding UTF-8
#' @format Glenan is an object of class data.frame composed of 32 observations and 252 variables.
#'
#' \describe{
#' \item{Abundance.\emph{x}}{Abundance (number of individuals) of each taxon \emph{x}}
#' \item{Surveys}{Indicates different Maerl bed surveys.}
#' \item{Treatment}{Combinations of fishing dredges and pressure levels. 'CTRL' stands for control. Fishing dredges are:
#' \itemize{
#' \item{(1) a clam dredge (CD), 70 to 90 kg, 1.5 m wide, 40 teeth of 11 cm each;}
#' \item{(2) a queen scallop dredge (QSD), 120 kg,1.8 m wide, with a blade;}
#' \item{(3) a king scallop dredge (KSD), 190 kg, 1.8 m wide, 18 teeth of 10 cm each every 9 cm.}
#' }
#' }
#' }
#'
#' @name glenan
#' @aliases glenan
#' @docType data
#' @keywords data
#'
#' @references
#' Tauran, A., Dubreuil, J., Guyonnet, B., Grall, J., 2020. Impact of fishing gears and fishing intensities on maerl beds: An experimental approach. Journal of Experimental Marine Biology and Ecology 533, 151472. https://doi.org/10.1016/j.jembe.2020.151472
#'
#' @seealso \code{\link{envelope}}
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