Lecture 12 Flashcards
Northern border of CBB
Southernmost part of HBL - low elevation, flat, less clay, but has continuous coniferous forest
What do sand dunes indicate?
Former shoreline of the Tyrrell Sea
Jack pines are uncommon in the CBB, but they do grow on ___ ____ found there.
sand dunes
T/F: Most of the CBB is protected, so little development is occurring
False
T/F: Peatlands in the BF all have similar characteristics
F: can have muskeg (thick w/lots of water) and bogs/fens (continuous mats w/little water)
Great Lakes-St. Lawrence Lowlands (GLSL) characteristics
- Avg. annual temp of 1-6C
- Blend of Boreal + Carolinian flora/fauna
Boreal species found in the GLSL include (7):
- Balsam fir
- White spruce
- Canada jay
- moose
- Red Squirrel
- snowshoe hare
- black-backed woodpecker
Carolinian species found in the GLSL include (4):
- Sugar maple
- Gray Squirrel
- Eastern cottontail
- Red-bellied woodpecker
Needles of jack/white/red pine - characteristics
Jack Pine: short, groups of 2
White Pine: long, groups of 5
Red Pine: long, groups of 2
These species reach their southern range limits in the GLSL (3):
- Spruce grouse
- Green alder
- Moose
These species reach their northern range limits in the GLSL (2):
- Snapping turtle
- Five-lined skinks
T/F: the GLSL forest region is on two physiographic regions (if true, which two?)
T: Canadian Shield + GLSL
T/F: the GLSL has a lot of non-native species
True
T/F: there’s more biodiversity in the GLSL, as it has habitats on two different rock types
True
What factors can influence the introduction of non-native species?
- Rock type
- Elevation
- Latitude/Longitude
- Temp., precipitation
- Humans
What regions of the GLSL forest region are on the GLSL physiographic region (2)?
- Ottawa-St. Lawrence Lowland
- Great Lakes Lowland
What regions of the GLSL forest region are on the Canadian Shield (4)?
- Frontenac Axis
- Superior GLSL
- Western/Prairie GLSL
- Algonquin Highlands
Which provincial park encompasses most of the Algonquin Highlands?
Algonquin Prov. Park
Describe the trees at different elevations in Algonquin Park:
- Sugar maples, birch on top of hills
- Trembling aspen, poplar at the bottom of hills
- Black spruce, balsam fir on the ground
Why are present-day elevations in the Algonquin Highlands lower than they were billions of years ago?
Large mountain range that was there was worn down by glaciation + erosion
What is a batholith?
Massive body of igneous rock (over 100 square km in size) that rose up from underground
Which side of Algonquin Park has a higher elevation? What are some of its characteristics as a result?
West; more precipitation, colder
Why do rivers flow out of Algonquin Park in all directions? Is this the only place in ON where it occurs?
It’s located on top of a dome; yes
At higher elevations/cold temperatures, there’s a lot of ____
mist
