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This function allows the visualization of intransitivity loops of recruitment depression differentiated from the rest of nodes (in grey). Nodes in different SCC are identified by different colors, and the rest of nodes, not belonging to any SCC are presented in grey The direction of the arrows indicate the depressing effect of the canopy species (origin of the arrow) on the recruitment of the recruit species (head of the arrow). It may be frequent that in recruitment enhancement (i.e. facilitation) or depression (i.e.competition) networks, there is not any SCC as they tend to have smaller dimensions that general recruitment networks.

Usage

visu_topol_depre(
  int_data,
  cover_data,
  layout_fun = igraph::layout_with_fr,
  vertex_size = 20,
  edge_arrow_size = 0.4
)

Arguments

int_data

data frame containing interaction data.

cover_data

data frame with the abundance of each canopy species in each plot.

layout_fun

type of igraph layout (see igraph::layout_())

vertex_size

numeric

edge_arrow_size

numeric

Value

a plot

Examples

visu_topol_depre(test_data$com,test_data$cov)