Presentation on the interaction between biotic and abiotic factors in an ecosystem. Also presenting an example of how these factors interact on the coastal plains and interior of sub-Antarctic Marion Island. For class presentatioon in School K, Grade 10, Life Sciences.

1. Grade 10 Life Sciences
Biosphere to Ecosystems:
Environment
Source; Biospiritual Permaculture
http://biospiritualpermaculture.com/page/about

2. Ecology
= study of interactions between living things and their
interactions with their physical and chemical environment.
Sources:
Science. Lots of Lessons - http://science.lotsoflessons.com/ecology.html
Dreamstime - http://www.dreamstime.com/stock-images-ecology-environmental-poster-image7630344

3. Levels of organisation
Source: Bio3002 Levels of ecology –
www.ux1.eiu.edu

4. Producers
= produce their own food
(photosynthesis)
Consumers
= rely on others for their
energy and food supply
Ecosystem
Herbivores
Carnivores
Scavenger
Insectivores
Omnivores
Decomposers
Living = Biotic factors Non-living = Abiotic factors
Non-living part of
the ecosystem:
Temperature
Wind
Water
Light
Soil
Slope

5. Source; BIO 7: Lecture 24 Preview
www.csus.edu

6. Source; BIO 7: Lecture 24 Preview
www.csus.edu

7. An example of interaction between biotic and abiotic factors:
Sub-Antarctic Marion Island

8. Image credit: www.sanap.ac.za
Prince Edward Islands
(Marion Island and
Prince Edward Island)
Approximately 1,920 km from Cape Town
Location

9. Marion Island Coastal Plains

10. Marion Island Interior

11. Management zones for human activities on Marion Island