Lecture 10 Flashcards
1
Q
Jack pines cones
A
- difficult to open
- require fire to open them
- temp of 50* celcius required
- delayed reaction= serotinous cones
- after a forest fire the cones open up slowly and the seeds fall out
- jack pines are fire adapted, use fire to their advantage
- fire changes the ground beneath the trees,
2
Q
Duff Layer
A
dead pine needles below the tree, underneath is the mineral soil. Fire burns the duff layer, exposing the mineral soil to the seeds.
3
Q
Sharp tailed grouse
A
benefits from forest fires
4
Q
Kirtlands warbler
A
nest only in jack pines 5-15 years old, 2-5m tall
5
Q
Fire
A
Important in the western boreal especially, occur twice a century on average
6
Q
Why do fires occur?
A
- less precip
- winds off of the prairie fuel the fire
- high number of lightning storms in the western boreal
- relatively flat land
- conifers are full of resin and burn well
7
Q
Dominant conifers
A
jack pines and black spruce
8
Q
painted turtles
A
- hatchlings are freeze tolerant
- map like patterns on the bottom
- eastern turtles are not nearly as elaborately patterned.
9
Q
Pink Lady’s slippers
A
common in the acidic coniferous forest
10
Q
Wabukimi
A
- wind is still a factor, sometimes blows down trees
- blown down trees are difficult to walk through. They are a feature of thin soil and strong winds
11
Q
Superior Boreal Forest
A
- highest elevations in Ontario
- largest freshwater lake in the world
- coastal summer
