Lecture 21 Flashcards
Where do Canada Geese forage while migrating?
Fields - can be found in large flocks
Why are there lots of owls in Owl Woods (hint: food)?
Name 3 owls that can be found there.
High meadow vole population
- Northern saw-whet owl
- Barred owl
- Long-eared owl
Martin Edwards Reserve
- Limestone shoreline
- Pond in the area is used to control water levels
- Migrating shorebirds can be seen feeding on invertebrates in algae
Wilson’s Phalaropes on Amherst Island
- females have multiple mates; they leave the males to incubate them
- Typically found in the prairies
- Females have more vibrant colours, and more testosterone than males
What two regions of the GLL have the most alvars in ON?
- Manitoulin Island
- Bruce Peninsula
Alvars on Manitoulin Island and the Bruce Peninsula have dolostone under them. How does it differ from typical limestone?
More magnesium in it
What are some rare plants in alvars? Which two are Great Lakes Endemics?
- Fringed Gentian
- Ram’s head Lady’s Slipper
- Lakeside Daisy (GL Endemic)
- Dwarf Lake Iris (GL Endemic)
This plant is a colonizer of sand dunes, found on Manitoulin Island + the Bruce Peninsula:
Beach pea
T/F: Manitoulin Island is the second largest freshwater island in the world
F: it’s the largest
This N. American endemic grows in the Bruce Peninsula:
Hill’s Thistle
These parts of the Bruce Peninsula are located along Lake Huron and have extensive sand deposits (due to wind):
- Sauble Beach
- Port Elgin
Why are some parts of Sauble Beach/Port Elgin closed off?
Presence of piping plover nests (as they’re endangered)
Why can fens be found on the Bruce Peninsula?
- More calcium = more nutrients
- Northern location in GLSL
Name two subarctic disjuncts found in the Bruce Peninsula:
- Butterwort
- Alaska Rain Orchid
Why is the Bruce Peninsula known as the “Garden of North America?”
Diversity of plants, due to:
- Location on dolostone = calcium rich soil
- diversity of habitats
- Surrounded by water; moderated temp. = longer growing season, more precipitation
T/F: The Bruce Peninsula is not a UNESCO World Biosphere Reserve
False
Calciphilic ferns in the Niagara Escarpment (4):
- Maidenhair spleenwort
- Walking fern
- Wall Rue (from Europe)
- Hart’s-tongue Fern
This escarpment starts near Niagara Falls and runs through the Bruce Peninsula to Michigan:
Niagara Escarpment
The oldest trees in N. America are ______ _____ _____, on the Niagara Escarpment
Eastern White Cedars
T/F: The Niagara Escarpment is a UNESCO World Biosphere Reserve
True
Rock cut in the Niagara Escarpment revealed an ancient ____ ___
coral reef
What % of Canada’s area is encompassed by the Carolinian?
<0.25%
What is the northern boundary of the Carolinian?
8C isotherm
The Carolinian was covered by this lake, which left behind large sand/clay deposits.
Lake Whittlesey, which became Lake Erie
