capacity_pollination: Pollination Capacity Model

In ecoservR/ecoserv_tool: Natural Capital Mapping Toolkit (UK)

Pollination Capacity Model

Description

Runs the pollination ecosystem service model, generating capacity scores based on the suitability of semi-natural habitats to support insect pollinators and travel distances of pollinators.

Usage

capacity_pollination(
  x = parent.frame()$mm,
  studyArea = parent.frame()$studyArea,
  res = 5,
  dist = 20,
  elev = NULL,
  DTM = NULL,
  elev_threshold = 250,
  use_hedges = FALSE,
  projectLog = parent.frame()$projectLog,
  runtitle = parent.frame()$runtitle,
  save = NULL
)

Arguments

x	A basemap, in a list of sf tiles or as one sf object. Must have attribute HabCode_B.
studyArea	The boundaries of the site, as one sf object. The final raster will be masked to this shape. For best results this shape should be smaller than the basemap (which should be buffered by typically 300 m - 1km to avoid edge effects).
res	Desired resolution of the raster. Default is 5 m. Range recommended is 5-10m.
dist	Distance within which pollinators are found in edge habitats (woodland) from a core habitat. Default 20 m.
elev	A character string giving the name of the basemap attribute containing a polygon's mean elevation. The output raster will be masked to reflect the fact that pollinators are not abundant at high elevations. If the information has not been extracted in the basemap, a DTM can be supplied separately.
DTM	A raster of elevation values for the study area (specified as file path to a folder). If left NULL (default), will use the basemap "elev" information instead (quicker).
elev_threshold	The elevation (in m) threshold above which the model considers that pollinators are absent. Default 250 m.
use_hedges	Use a separate hedgerow layer? Default FALSE, see clean_hedgerows() for producing a model-ready hedge layer.
projectLog	The RDS project log file generated by the wizard app and containing all file paths to data inputs and model parameters
runtitle	A customised title you can give a specific model run, which will be appended to your project title in the outputs. If comparing a basemap to an intervention map, we recommend using "pre" and "post", or a short description of the interventions, e.g. "baseline" vs "tree planting".
save	Path to folder where outputs will be saved. By default a folder will be created using your chosen run title, prefixed by "services_". Do not use this argument unless you need to save the outputs somewhere else.

Value

Two rasters with capacity scores: one with raw scores (0-1: likelihood that a pollinator will visit a pixel), and one rescaled 0-100 (where 100 is maximum capacity for the area).

ecoservR/ecoserv_tool documentation built on April 5, 2025, 1:49 a.m.