Effects of fire regime on the serotiny level of jack pine
Gauthier S, Bergeron Y, Simon J. 1996. Effects of fire regime on the serotiny level of jack pine. Journal of Ecology. 84(4):539-548
Serotiny, the capacity to retain seeds in the plant canopy, has evolved in many species under the pressure of fires. The effect of disturbance type, time-since-fire and different fire regimes on the serotiny of jack pine, was evaluated in populations from two adjacent landscapes in the southern part of the Canadian boreal forest. The island landscape has a complex fire regime of small fires of variable intensity, whereas the adjacent mainland has a fire regime characterized by large intense fires. Significant differences were found between the two landscapes. These results support the hypothesis that fire imposes differential selective pressures on serotiny in jack pine.
- Type
- Journal Article
- Authors
- Gauthier, Sylvie; Bergeron, Yves; Simon, Jean-Pierre
- Units
- APIS , GRPO , ISRO , PIRO , SACN , SLBE , VOYA
- Keywords
- cone polymorphism, disturbance regime, FIRE, Fire Intensity, fire interval, Forestry, jack pine, Management, pinus banksiana, Plant Communities