ATNr (version 1.1.0)

create_model_Unscaled: Initialize an ATN model, following Binzer et al. 2016, Global Change Biology

Description

Initialize an ATN model, following Binzer et al. 2016, Global Change Biology

Usage

create_model_Unscaled(nb_s, nb_b, BM, fw)

Value

An object of class ATN (Rcpp_parameters_prefs).

Arguments

nb_s

integer, number of total species.

nb_b

integer, number of basal species.

BM

float vector, body mass of species.

fw

binary adjacency matrix of the food web.

Details

A model is defined by the total number of species (nb_s), the number of basal species (nb_b), the number of nutrients (nb_n), the body masses (BM) of species, and the adjacency matrix (fw) representing species interactions.

References

Binzer, A., Guill, C., Rall, B.C. and Brose, U. (2016), Interactive effects of warming, eutrophication and size structure: impacts on biodiversity and food-web structure. Glob Change Biol, 22: 220-227. https://doi.org/10.1111/gcb.13086 Gauzens, B., Rall, B.C., Mendonca, V. et al. Biodiversity of intertidal food webs in response to warming across latitudes. Nat. Clim. Chang. 10, 264-269 (2020). https://doi.org/10.1038/s41558-020-0698-z

Examples

library(ATNr)
set.seed(123)
n_species <- 50
n_basal <- 20
masses <- sort(10^runif(n_species, 1, 6)) #body mass of species
L <- create_Lmatrix(masses, n_basal)
fw <- L
fw[fw > 0] <- 1
mod <- create_model_Unscaled(n_species, n_basal, masses, fw)