Principles of Ecology

1
Principles of Ecology

• Chapter 2.1

2
Biotic Abiotic Factors

• Biotic
• Living organisms
• Abiotic
• Nonliving
• Soil,Air,Water
• Substrate

3
Population

• Number of Individuals
• Same Species
• In an area or place

4
Community

• All the Plants Animals
• In a given area
• ? Community of Del Mar

5
Forest Community ..
6
Ecosystem Both biotic and abiotic factors in a
large area
7
Niche versus habitat

• Habitat
• Place
• Niche
• Role
• Producer, Consumer or Decomposer
• Adaptations

8
Niche overlap?

• Do not overlap
• Competition eventually is harmful
• Specialized adaptation wins out

9
Organism Interrelationships

• Beneficial
• Symbiosis
• Living together
• Commensalism
• Only one benefits
• Mutualism
• Both benefit

• Harmful
• Parasitism
• One benefits
• Host slowly harmed

10
Tape worm Parasite

• You are harmed because it lives off your
  intestinal fluids
• Segments break off to form a new worm!

11
LichenFungus algae

• Fungi
• carbon dioxide
• moisture
• Algae
• food
• Oxygen
• MUTUAL SYMBIOSIS