Abiotic Factors

Common Abiotic factors

Anemometer

Thermometer

Barometer

Rain Gauge

pH Meter/ Litmus paper

Dissolved Oxygen content

Biotic factors

Examples of Biotic factors

Distinguish between biotic and abiotic factors

Predator vs. Prey

Example of predator-prey relationships in nature ( Both species present.)

Predator efficiency at catching prey

Amensalism ( - / 0 )

Examples of Amensalism

Competition

Meaning of 'competition for resources'

Short vs. long term effects of competition

Allelopathy ( Antibiosis)

Types of organisms that use Allelopathy

Commensalism ( +/ 0)

Examples of commensalism

Mutualism ( +/+)

Examples of Mutualism

How do root nodules aid the survival of many Australian plants?

Parasitism (+/-) / Parasite/ Host

Ectoparasite

Endoparasite

Intraspecific Competition

Interspecific Competition

Decomposer

Groups of decomposers

Role of decomposers

Consumers ( Heterotrophs)

Producers ( Autotrophs)

Niche

What determines a niche?

Fundamental Niche

Realised Niche

Realised vs. Fundamental niche

Resource partitioning

Competitive exclusion principle

What happens if two species try to occupy the same niche?

Disease

Infectious disease

Pathogen

Human disease caused by viruses

Example of how viruses can affect animals beside human populations

Bacterial diseases that affect Australian animals

Outline Consequences of interactions

Abundance

Distribution

How is distribution measured

Explain the quadrat method for sampling abundance

What sorts organisms are suitable for quadrat sampling

What is the process for calculating abundance using quadrats?

How is abundance of highly mobile species recorded?

The process for calculating abundance via. capture-mark-recapture sampling

Assumptions that can be made when using this sampling method?

Example of Quadrat sampling technique

Extinction

Extinctions role in revolution

Low level extinction vs. mass extinction

Some causes of extinction

Mass extinctions affects on biodiversity

Recent extinction event in Australia ( including likely causes)