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Puffin chick mortality from predation due to hunger

calc_puffinmortality.Rd

If a puffin chick is hungry, there is an increased risk of predation. This function takes the 'hungry' chicks (based on relative body condition), calculates the probability of death by predation and then uses rbinom to remove some of those chicks.

Usage

calc_puffinmortality(CoD, alive, BM_condition, BM_Chick_mortf)

Arguments

CoD

Cause of death ("killed", "starved", "unattended", "parentdead", "abandoned", "other")

alive

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

BM_condition

Body mass relative condition, 0-1

BM_Chick_mortf

Critical mass below which chick is dead, 0-1

Value

A revised cause of death