Parameters and their default values in the individual-based hen harrier model.

aThe search area dimensions are based on expert opinion and chosen (along with the natal KDIST parameter values) to produce dispersal kernels matching, as closely as possible, reported natal dispersal distances (a data set partially overlapping with the raw data for [26] Table 11); see section 2.5 of Methods (but also see [37]).bThese were based on expert judgement and set to reflect the fact that hen harriers tend to disperse less far after breeding failure than from the natal location, and that males tend to disperse further than females.cThese values were set to allow for the rare extremely long distance dispersers as recorded in ([26] Table 11).dPBREED1F was set to be higher than values in ([26] Table 10; 68%) because in the model some females that should breed fail to find a mate.eThe value of 80% ([26] Table 8) was adjusted to account for the fact that we model killing of nesting females separately.fAssumed to be equal to the value for females.gTable 14 (other moorland).hp. 1092.iAdditional annual female mortality due to persecution.j[26] p. 1098 suggested that additional mortality of females nesting on grouse moors is approximately 60%; our estimates are slightly conservative and scaled according to the level of heather burning observed (see section 3.2 of Methods (Input data)).Parameters and their default values in the individual-based hen harrier model.