Figure 6. Eruption phase relationship with immigration for the Qamanirjuaq, Bathurst and George River subpopulation cycles. Biologically plausible maximal intrinsic growth rates (λplausable) of 1.2 were substituted for the sine-cycle projected rates providing a measure of maximum intrinsic growth potential. The remaining increase was ascribed to extrinsic growth (i.e., immigration) providing a measure of relative contribution to annual growth. The Qamanirjuaq subpopulation did not experience any additional population growth due to immigration. Both the Bathurst and George River subpopulation experienced varying levels of immigration driven population growth. The maximum contribution of immigration to total population growth was ~57% and ~89% for the Bathurst and George River subpopulations, respectively.