Table 2.

Calculations of conditional survival probabilities as a function of behavioural strategy.

			survival probability
actual event	assigned event	frequencya	no response	respond P1	respond P2	respond both
none	none	(1−f)(1−g)	1−rb	1−rb	1−rb	1−rb
P1	P1	f(1−g)(1−a21)	1−pb	1−c	1−pb	1−c
P2	P1	(1−f)ga12	1−qb	1−c	1−qb	1−c
P2	P2	(1−f)g(1−a12)	1−qb	1−qb	1−c	1−c
P1	P2	f(1−g)a21	1−pb	1−pb	1−c	1−c
both	P1	fg(1−a21)a12	(1−pb)(1−qb)	1−c	(1−pb)(1−qb)	1−c
both	P2	fga21(1−a12)	(1−pb)(1−qb)	(1−pb)(1−qb)	1−c	1−c
both	both	fg(1−a21)(1−a12)+fga21a12	(1−pb)(1−qb)	1−c	1−c	1−c

^aThe conditional survival probability for one strategy is calculated by multiplying frequency by the survival probability for that strategy and then summing these products for each row.