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BIOL 2903 > Lecture 16 > Flashcards

Lecture 16 Flashcards

1
Q

Purposes for wolf communication

A
  • Announce territory
  • Keep other packs away
  • Communicate to pack members
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2
Q

T/F: black bears kill wolf pups, and wolves kill bears

A

True

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3
Q

When do wolves usually hunt beavers?

A

In the fall; beavers are cutting down trees or looking for food

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4
Q

What conditions are hemlocks best suited to grow in?

A

Cool temperatures; found on the north side of hills in Algonquin

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5
Q

What trees/plants surround peatlands in Algonquin (6)?

A
  • Tamarack, conifers
  • labrador tea
  • leatherleaf
  • round-leaved sundew
  • pitcher plant
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6
Q

T/F: eastern wolves use peatlands in Algonquin as rendezvous sites

A

True

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7
Q

Name two places in Algonquin Park that lie on sedimentary rock, and a plant that can grow there.

A
  • Fault Line, Brent Crater

- Bunchberry

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8
Q

Why can northern habitats form in Algonquin?

A

Elevation

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9
Q

Name some boreal species that reach their southern range limits in Algonquin Park (5)

A
  • Black-backed woodpecker
  • Boreal chickadee
  • Canada Jay
  • Great Gray Owl
  • Marten
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10
Q

Why are there more beavers on the east side of Algonquin?

A
  • More flowing water

- More food (birch, poplar)

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11
Q

What do lakes and beaver ponds have in common? How are they different?

A
  • Both are lentic water systems

- Lakes are much deeper

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12
Q

Why can bays support species like water lilies and bullfrogs?

A
  • Shallow

- Sheltered from wind, waves

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13
Q

What is lake stratification?

A

The separation of lakes into 3 layers based on temperature

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14
Q

What are the 3 layers of lakes (re: stratification) from surface to bottom?

A
  • Epilimnion
  • Thermocline
  • Hypolimnion
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15
Q

Temperature of lake water in the winter

A
  • Mostly 4C, but 0C at the surface
  • warmer water is denser and sinks
  • no stratification
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16
Q

Spring turnover

A
  • Surface of lake warms to 4C
  • Wind-created currents cause turnover
  • nutrients brought to surface
  • oxygen brought to bottom
17
Q

Fall turnover

A

Reversal of spring turnover

18
Q

Species found by lake shores

A
  • Speckled alder
  • Spotted sandpiper (along rocky shorelines)
  • Minks (hunting)
19
Q

T/F: The Georgian Bay is a UNESCO-designated Biosphere Reserve

A

True

20
Q

Georgian Bay is the world’s largest ________ _______, with many _______.
It has 347k hectares of _________ ecosystem

A
  • World’s largest freshwater archipelago - many islands

- 347k hectares of shoreline ecosystem

21
Q

Animals found near Georgian Bay (4)

A
  • Eastern foxsnake (1 of 2 populations in ON)
  • Massasauga (mostly gone in SW ON)
  • Hog-nosed snake (endangered in Carolinian)
  • Five-lined skink (endangered in Carolinian)
22
Q

Frontenac Axis characteristics

A
  • On Canadian Shield
  • Includes Thousand Islands National Park
  • Spans Gananoque to Brockville
23
Q

T/F: The Frontenac Axis is a UNESCO-designated Biosphere Reserve

A

True

24
Q

Name two ferns found in the Frontenac Axis:

A
  • Rock polyplody

- Marginal shield fern

25
Q

Carolinian/southern species found in the Frontenac Axis (7):

A
  • Red-bellied Woodpecker
  • Cottontail
  • Gray Squirrel
  • Eastern Red Cedar
  • Bladdernut
  • White Oak
  • Cerulean Warbler
26
Q

What do Giant Swallowtail caterpillars eat in the Frontenac Axis?

A

Prickly Ash

27
Q

What kind of snakes are Gray Rat Snakes?

A

Tree-climbing constrictors

28
Q

Plants that reach their northern range limits in the Frontenac Axis (4):

A
  • White oak
  • Red oak
  • Shagbark hickory
  • Coniferous shrubs (e.g. bladdernut)
29
Q

Hardwood forest species in the Frontenac Axis (3):

A
  • Gray tree frogs
  • Barred owls
  • Eastern chipmunk
30
Q

Why are the Thousand Islands important to animals?

A

Crossover sites; the Frontenac Axis is important for travelling animals (e.g. fisher)

BIOL 2903 (24 decks)

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