disppool: Create a probabilistic dispersal pool.

Description Usage Arguments Details Value References See Also Examples

View source: R/functions.R

Description

Creates a RasterBrick of dispersal probabilities that can be used as argument in probpool.

Usage

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disppool(disp_ability, occurrences, conductance, method = c("negexp",
  "fattail"), longlat = TRUE)

Arguments

disp_ability

A numeric vector of dispersal abilities. [WHAT IS THE UNIT HERE?]

conductance

Optional. A Raster* object representing landscape conductance for dispersal. Takes values between 0 and 1, where 0 indicates complete resistance (P(dispersal to raster cell) = 0) and 1 indicates complete conductance (P(dispersal to raster cell) = p). If a single RasterLayer is provided, the conductance matrix will be recycled for each species.

method

A number specifying the kernel used for estimating dispersal distance. (see details)

longlat

Logical. Should calculations be based on long/lat?

occurences

A Raster* object containing occurrence data for individual species. Each species is represented by a binary RasterLayer, where cell values of 0 indicate absence and 1 indicates presence.

Details

[DETAILS GO HERE]

Value

A raster stack containing species-specific probabilities of dispersal from areas of occurrence to a certain raster cell within a given time frame.

References

Tamme, R., Götzenberger, L., Zobel, M., Bullock, J. M., Hooftman, D. A. P., Kaasik, A. and Pärtel, M. (2014), Predicting species' maximum dispersal distances from simple plant traits. Ecology, 95: 505–513. doi:10.1890/13-1000.1

See Also

probpool

Examples

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[EXAMPLE GOES HERE]

ChrKoenig/probpool documentation built on Dec. 21, 2017, 9:41 p.m.