GBIF dataset citation:
GBIF.org (2 May 2020) GBIF Occurrence Download https://doi.org/10.15468/dl.z32evt
See also:
https://www.youtube.com/watch?v=1C1zVJO-Rk0
install.packages("maptools")
install.packages("rgeos")
install.packages("raster")
install.packages("rgdal")
install.packages("dismo")
library(maptools)
library(rgeos)
library(raster)
library(rgdal)
library(dismo)
#plot your observation points
data("wrld_simpl")
read.csv("Poritidae_map.csv")
Occurrences ← read.csv("Poritidae_map.csv")
#make sure occurrences are where they are supposed to be
plot(wrld_simpl)
points(Occurrences$decimalLongitude, Occurrences$decimalLatitude, col="red", pch=1, cex = 0.3)
#zoom (Japan)
plot(wrld_simpl, xlim=c(130,150), ylim=c(30,50), axes=T)