Description Usage Arguments Details Value Functions References See Also Examples
Obtain occurence data of mammals in Europe of the first EMMA dataset.
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mask |
[ |
species |
[ |
version |
[ |
... |
[various] |
file |
[ |
localPath |
[ |
The website Societas
Europaea Mammalogica kindly offers maps of the ocurrence of all mammals in
Europe, which are parsed by oEMMA
.
The occurrence data are recorded and stored on a grid of 50 x 50 km. This is the same grid as used for the Atlas Florae Europaeae.
The dataset meta_emma
lists all available species.
The object provided in mask
is treated as a single mask,
irrespective of that object consisting of only one or several features. The
extent comprising all features (point(s), line(s), polygon(s)) is used as
area of interest. This is in contrast to obtain
, where a mask
may consist of several features, each of which are treated as seperate
mask.
A data-frame of the species of interest occuring in the area outlined
by mask
.
downloadEMMA
: function to download data related to the EMMA dataset
Mitchell-Jones A, Amori G, Bogdanowicz W, Kryštufek B, Reijnders P, Spitzenberger F, Stubbe M, Thissen J, Vohralík V and Zima J (1999). The Atlas of European Mammals. Academic Press, London
Other obtain operators (Europe): oCLC
,
oEFTA
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require(magrittr)
mySpecies <- oEMMA(mask = rtGeoms$mask,
species = c("Apodemus agrarius",
"Apodemus flavicollis",
"Vulpes vulpes"))
# Subset from a large set of files using an index
abbr_species <- function(x){
tolower(paste(substr(unlist(strsplit(x, ' ')), 1, 3), collapse = '_'))
}
mySpecies <- catalog(path = rtPaths$emma$local,
type = 'svg', abbr = abbr_species) %>%
subset(abbr %in% c("apo_agr", "apo_fla", "vul_vul")) %$%
oEMMA(mask = myMask, species = original)
# get the (updated) bibliography
reference(style = "bibtex")
## End(Not run)
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