Table 1.

Sensitivity analysis of the equilibrium population size of deer to parameters in the wolf model. (The first three parameters relate to wolf predation on deer and the remaining parameters to wolf demography. We report sensitivities of parameters of the wolf model only because the sensitivities of red deer population size to model parameters have been reported elsewhere (Milner-Gulland et al. 2004). Sensitivities were estimated using standardized linear regression of model results obtained by extensive parameter perturbation.)

description of parameter	parameter name	β	p-value	∼r2
asymptotic kill rate (deer/wolf)	a	−0.417	<0.001	0.174
deer density at ½a	h	0.126	0.003	0.016
selectivity constant of juveniles and old females (10 years or more)	Sel1	−0.116	0.005	0.013
juvenile survival	sjuv	−0.010	0.815	0.001
adult survival	sprime	−0.563	<0.001	0.318
deer : wolf ratio when adult wolf survival=one-half maximum value	g	0.153	<0.001	0.023
probability that a dispersing wolf settles	psettle	−0.458	<0.001	0.209