The occurrence of bisexual strobiles on black spruce ( Picea mariana (Mill.) B.S.P.) in the forest–tundra ecotone: Keewatin, Northwest Territories

• Published in: Canadian Journal of Forest Research
• Main Author: Elliott, Deborah L.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1979
• Subjects: Ecology; Forestry; Global and Planetary Change; Northwest Territories; Canada; Ennadai; Ennadai Lake; Keewatin; Tundra
• Online Access: http://dx.doi.org/10.1139/x79-046; http://www.nrcresearchpress.com/doi/pdf/10.1139/x79-046

During fieldwork in the summer of 1977 in the vicinity of Ennadai Lake (District of Keewatin, N.W.T., Canada), a stand of upland black spruce (Piceamariana (Mill.) B.S.P.) possessing bisexual strobiles was encountered within the forest–tundra ecotone. This is the first reported occurrence of bisexual strobiles for this species. It is hypothesized that the occurrence of male and female reproductive tissue in the same reproductive structure is an indicator of stress in this arboreally marginal environment.