Dynamics from EcoSim — dBdt • ecostate

Compute system of differential equations representing EcoState dynamics derived from EcoSim.

Usage

dBdt(
  Time,
  State,
  Pars,
  type_i,
  n_species,
  F_type = "integrated",
  what = "dBdt"
)

Arguments

Time: not used
State: vector of state variables to integrate
Pars: list of parameters governing the ODE
type_i: type for each taxon
n_species: number of species
F_type: whether to integrate catches along with biomass ("integrated") or calculate catches from the Baranov catch equation applied to average biomass ("averaged")
what: what output to produce

Value

An object (list) of ranges. Elements include:

G_i: Biomass growth per time
g_i: Biomass growth per time per biomass
M2_i: Consumptive mortality per time
m2_i: Consumptive mortality per time per biomass
M_i: Natural mortality per time
m_i: Natural mortality per time per biomass (i.e., m2_i + m0_i)
Q_ij: Consumption per time for prey (rows) by predator (columns)

Details

This function has syntax designed to match pracma solvers.