Figure 3.

Results of the survival analysis for Picea glauca, Picea engelmannii and hybrids suggest that pure species and hybrids have better survival in their own habitat. Percentage survival was compared between hybrid and pure species in the high-elevation test site in Cortiana, West Kootenay (WK; P. engelmannii habitat); the low-elevation test site in Fort Nelson (P. glauca habitat); and across nine intermediate-elevation sites in East Kootenay (EK), Quesnel Lakes (QL) and WK (P. glauca × P. engelmannii hybrids habitat). Differences between pure species and hybrids are significant at all ages. Survival estimates for all tests sites can be found in Supporting Information Table S5.