classify_topological_roles: Classify and plot topological roles

In lsaravia/EcoNetwork: Ecological network analyses including multiplex networks

Classify and plot topological roles

Description

We use the topological roles calculated with calc_topological_roles() and categorize them following the approach of Kortsch (2015), that defines species roles based in two thresholds PC=0.625 and dz=2.5. If a species had at least 60% of links within its own module then PC<0.625, and if it also had dz\ge 2.5, thus it was classified as a module hub, labeled modhub. If a species had PC<0.625 and dz<2.5, then it was called a peripheral or specialist, labeled modspe. Species that had PC\ge0.625 and dz<2.5 were considered module connectors modcon. Finally, if a species had PC\ge0.625 and dz\ge 2.5, then it was classified as a super-generalist or hub-connector hubcon.

Usage

classify_topological_roles(tRoles, g, community = NULL, plt = FALSE)

Arguments

tRoles	Calculated topological roles with the function calc_topological_roles()
g	Igraph network object
community	Igraph community object used to calculate the topological roles
plt	logical whether a plot is generated

Value

a data.frame with the classified topological roles

References

1. Kortsch, S., Primicerio, R., Fossheim, M., Dolgov, A. V & Aschan, M. (2015). Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists. Proc. R. Soc. B Biol. Sci., 282

2. Saravia, L.A., Marina, T.I., De Troch, M. & Momo, F.R. (2018). Ecological Network assembly: how the regional meta web influence local food webs. bioRxiv, 340430, doi: https://doi.org/10.1101/340430

Examples

## Not run: 

g <- netData[[2]]

tp <- calc_topological_roles(g,nsim=10)

classify_topological_roles(tp,g,plt=TRUE)

## End(Not run)

lsaravia/EcoNetwork documentation built on March 20, 2024, 3:27 p.m.