Graphics

1
Unit 01

• Graphics

2
Human Population Growth
3
NL Fishery

• 1497, John Cabot reported Cod so plentiful that
  it sometime stopped the progress of his ships.
• 1977, Canada established a 200-mile offshore
  economic zone
• 1992 - Moratorium

4
Cod Catch 1950 - 1995
200 mile limit
Moratorium
5
Food Chain
6
Food Web Summary

• Autotrophs (e.g. green plants, seaweeds, and
  lichens) are called producers because only they
  can manufacture food from inorganic raw
  materials.
• This food feeds herbivores, called primary
  consumers.
• Carnivores that feed on herbivores are called
  secondary consumers.
• Carnivores that feed on other carnivores are
  tertiary (or higher) consumers.

7
Food Web
8
Pyramid of Energy
Producers convert 1 of suns energy Other levels
convert 10 of level below
9
Pyramid of Biomass
10
Pyramid of Numbers
11
Introduced Species
12
Introduced species

• Eastern Chipmunk
• Coyote
• Snowshoe Hare
• American Mink
• Moose
• Deer Mouse

• House Mouse
• Norway Rat
• Masked Shrew
• American Red Squirrel
• Bank Vole

13
Eastern Chipmunk
14
Coyote
15
Snowshoe Hare
16
American Mink
17
Moose
18
Deer Mouse
19
House Mouse
20
Norway Rat
21
Masked Shrew
22
American Red Squirrel
23
Bank Vole