calc_p: Calculate impact of prey biomass on predator reproduction

In jcpayne/mice-models: Model of Intermediate Complexity for Ecosystem Assessment

Description

Calculates the impact of available prey biomass on the maximum offspring per predator, for predator species X. The function has two parameters: K, which controls how steep the logistic inflection is, and Dhat, which controls the location of the inflection point on the X axis. Those parameters and Mo, the maximum offspring per spawner, are stored in the Predator object.

Usage

calc_p(predator, Dy)

Arguments

predator	A Predator object
Dy	The total biomass of prey available to the predator.

Value

The Beverton-Holt p parameter value (a scalar), scaled to represent some fraction of the maximum offspring per predator.

See Also

Other recruitment: calc_B1P, calc_B_sp, calc_Bev_Holt, calc_Bprey_agepreferred, calc_Dy, calc_R_error, calc_Ricker, calc_availability, calc_other_R, calc_phi, calc_predRecruits_Punt, calc_predatorRecruits, calc_preyRecruits, calc_recruits

jcpayne/mice-models documentation built on May 18, 2019, 10:25 p.m.