lconnect (version 0.1.2)

patch_imp: Prioritization of patches

Description

Prioritization of patches according to individual contribution to overall connectivity.

Usage

patch_imp(landscape, metric, vector_out = FALSE)

Value

An object of class "pimp". This object is a list with the following values:

landscape

Spatial polygon object of class "sf" (package "sf") with cluster identity and importance of each polygon.

prioritization

Vector with patch importance in percentage.

Arguments

landscape

Object of class "lconnect" created by upload_land.

metric

String indicating the connectivity metric to use in the prioritization.

vector_out

TRUE/FALSE indicating if the resulting spatial object should be recorded to file.

Author

Frederico Mestre

Bruno Silva

Details

Each patch is removed at a time and connectivity metrics are recalculated without that specific patch. Patch importance value indicates the percentage of reduction in the connectivity metric that the loss of that patch represents in the landscape. The current version only allows the use of IIC or AWF.

References

Saura, S., Pascual-Hortal, L. (2007). A new habitat availability index to integrate connectivity in landscape conservation planning: Comparison with existing indices and application to a case study. Landscape and Urban Planning, 83(2-3):91-103.

Examples

vec_path <- system.file("extdata/vec_projected.shp", package = "lconnect")
landscape <- upload_land(vec_path, bound_path = NULL,
                        habitat = 1, max_dist = 500)
importance <- patch_imp(landscape, metric = "IIC")
plot(importance)