fuzzySim (version 2.0)

rotifers: Rotifer species on TDWG level 4 regions of the world

Description

These data were extracted from a database of monogonont rotifer species records on the geographical units used by the Biodiversity Information Standards (formerly Taxonomic Database Working Group, TDWG; base maps available at www.kew.org/science-conservation/research-data/resources/gis-unit/tdwg-world). The original data were compiled and published by Fontaneto et al. (2012) for all TDWG levels. Here they are reduced to the TDWG - level 4 units and to the species recorded in at least 100 (roughly one third) of these units. Mind that this is not a complete picture of these species' distributions, due to insufficient sampling in many regions.

Usage

data("rotifers")

Format

A data frame with 3865 observations on the following 2 variables.

TDWG4

a factor with 274 levels corresponding to the code names of the TDWG level 4 regions in which the records were taken

species

a factor with 30 levels corresponding to the names of the (sub)species recorded in at least 100 different TDWG level 4 regions

Examples

# NOT RUN {
data(rotifers)

head(rotifers, 10)
# }