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Winter Adaptations

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1.

Winter Adaptations

how animals survive winter
Photo by blmiers2
2.

2 Adaptations

  • Structural - physical changes or abilities
  • Behavioural - what it does.
Photo by TeryKats
3.

balling behaviour

CHICKADEES, CATS, DOGS, ETC
Photo by Kate Stone Matheson
4.

MIGRATION

getting out of Dodge
Photo by Serge Melki
5.

THICK UNDER COAT

Photo by GollyGforce
6.

SMALL EXTREMITIES

Photo by djwudi
7.

HUDDLING

flying squirrels, bees,
Photo by Sam Howzit
8.

FOOD CACHES

Photo by johnmuk
9.

Can Freeze

turtles, insects
Photo by luciano.martins
10.

TORPOR

reduced activity, reduced body temp
Photo by d_oracle
11.

FAT

Photo by tuey
12.

GOLDENROD FLY

Lifecycle survival
Photo by bob in swamp
13.

Weasels

ALWAYS EATING
Photo by Fool-On-The-Hill
14.

EGGS

Lifecycle
Photo by themonnie
15.

hibernation

  • long periods of reduce bio activity (metabolism)
  • oxygen to brain 2% of norm
  • massive drop in heart rate
  • fish do it too
  • need to warm up every few weeks - shivering and fat
  • True hibernators - woodchucks, ground squirrels, snakes, usually small
Photo by hannes.steyn
16.

Estivation

Warm-weather hibernation
Photo by davic
17.

Recap

  • How do your pets handle cold?
  • behavioural adaptation versus learning?
  • torpor versus hibernation
  • Freeze versus leaving
Photo by Rosa Dik 009 -- catching up !

Chris Byron