Chick mortality as a result of adults not attending the nest

If a chick is left alone at the nest, there is an increased risk of death from predation etc. This function takes the chicks who are not fully attended by the adults, calculates the probability of death and then uses rbinom to remove some of those chicks.

Usage

calc_unattendmortality(CoD, alive, unattend_hrs, max_hrs)

Arguments

CoD

Cause of death

alive

Flag to indicate if the chick is currently alive (1) or dead (0)

unattend_hrs

Number of hrs the chick was left unattended

max_hrs

Species parameter: Critical time threshold for unattendance at nest above which a chick is assumed to die through exposure or predation

Value

A revised cause of death