Term 1 Mind Map: Agro- Ecology: 3
Week 1,2 Ecology and Agro- Ecology: 4
Week 3,4 Veld Management, Grazing Ecology and Pasture Science: 9
Week 5 Biomes 12
Mind Map: Agricultural Economics 17
Week 6,8 Introduction to Agricultural Economics 18
Memorandum
Week 1,2 Ecology and Agro- Ecology: 23
Week 3,4 Veld Management, Grazing Ecology and Pasture Science: 24
Week 5 Biomes 29
Week 6,8 Introduction to Agricultural Economics 32
2
,Ecology and Agro- Ecology: Interactions in Ecosystems:
Biomes:
• Basic concepts • Energy flow in Ecosystems
• Levels of ecological organization • Nutrient cycling
• Components of an Ecosystem • Interactions between organisms
• Ecological farming methods
Grazing Ecology:
• Natural and Artificial Pastures
• Grazing ecology
• Optimal Grazing
• Veld types of South Africa
• Characteristics of grazing plants
• Condition of pastures
• Biomes and their
Pasture and Veld Management: characteristics
• Importance of pastures for the livestock industry
• Human impact
in SA Agro-Ecology • Importance for agriculture
• Pasture management and Pasture condition
• Veld Management Practices
• Veld Management Systems
• Different grazing Systems
• Veld management that leads to poor veld
conditions
Climate change and the effect of weather phenomena:
• Causes of global warming
• Impact of climate change on agriculture
• Long term weather predictions and rainfall patterns
• Short term climate and weather predictions
• Agricultural adaptation measures to overcome climate change
3
, Term 1: Agro- Ecology: Week 1 & 2
1. The box below shows the different aspects of an ecological organisation. Arrange
them in different levels starting with the smallest to the largest level in the organization
Ecosystem, Community, Population, Biome, Individual, Biosphere
(6)
2. The diagram below illustrates a grassland ecosystem. Study it carefully and answer
the questions that follow:
2.1 Tabulate any TWO biotic and TWO abiotic components which are visible in the
diagram (4)
2.2 Formulate a food chain from the components in the system (4)
2.3 From the above diagram indicate one each of the following:
a) Producer
b) Primary consumer
c) Secondary consumer
d) Carnivore (4)
2.4 List THREE climatic factors that will have an influence on the organisms in the
diagram (3)
The following schematic representation represents some of the interactions between
organisms in an ecosystem
4