updateRange: updateRange

In EduardoArle/speciesRanges: Create or update species range maps based on point-records

Description

Update the species range map based on point-occurrence presence and absence data. The algorithm uses either a specialist range map or a convex hull as basis for the calculations

Usage

updateRange(
  occ,
  range,
  res = 1,
  range_bonus = 75,
  occ_bonus = 20,
  abs_pen = 40,
  red2 = 0.5,
  study_area = "range"
)

Arguments

occ	dataFrame of the species occurrence. Output of function occData.
range	shapefile, the user can provide a specialist range map, or a convex hull to be visualised with the point occurrence.
res	numeric, spatial resolution in degrees. Default is 1.
range_bonus	numeric, percentage of bonus to be given to cells within the basis range.
occ_bonus	numeric, value of bonus given by presences.
red2	numeric, distance decay for occ_bunus and abs_penalty.
study_area,	spatial object defining the extention of the study area. The default is the range buffered by 1 degree.
abs_penalty	numeric, value of penalty given by absences.

Value

An updated range map based on presences and absences.

EduardoArle/speciesRanges documentation built on Feb. 2, 2022, 5:14 p.m.