oceanDiversity: Function 2.3 oceanDiversity compute spatial patterns of...

In monteroserra/rOceans: Spatial Trends in Marine Biodiversity and Conservation

Function 2.3 oceanDiversity compute spatial patterns of species diversity from occurrences compute spatial patterns of species diversity from large occurrences datasets

Description

computes global grid of abundance of occurrences at multiple scales

Usage

oceanDiversity(occurrences, species_name = "scientificName",
  lat_name = "decimalLatitude", long_name = "decimalLongitude",
  extent = "global", cell_size = 5, min_long = -180, max_long = 180,
  min_lat = -90, max_lat = 90, diversity_metric = "richness")

Arguments

occurrences	dataset of occurrences downloaded from OBIS or GBIF
lat_name	variable name indicating latitude in the occurrences dataset
long_name	variable name indicating longitude in the occurrences dataset
extent	spatial extent of the analysis:"global", "Mediterranean"
cell_size	size of the grid cells in degrees (?)
min_long	minimum longitude of the analysis
max_long	maximum longitude of the analysis
max_lat	maximum latitude of the analysis
diversity_metric	diversity metric to be computes: richness, shannon or simpson indeces
max_long	minimum latitute of the analysis

Details

The function creates downloads occurrences data from the specific sources and stores them in a data frame.

Value

The function returns a an object of class raster with abundance per cell

monteroserra/rOceans documentation built on Dec. 23, 2024, 2:47 p.m.