C.3 - Impacts of humans on ecosystems
|
3.2
|
9.3
|
Assessment statements
| DCS Topic Code | Statement | Guidance |
| C.3.U1 | Introduced alien species can escape into local ecosystems and become invasive. | |
| C.3.U2 | Competitive exclusion and the absence of predators can lead to reduction in the numbers of endemic species when alien species become invasive. | |
| C.3.U3 | Pollutants become concentrated in the tissues of organisms at higher trophic levels by biomagnification. | |
| C.3.U4 | Macroplastic and microplastic debris has accumulated in marine environments. | |
| C.3.A1 | Study of the introduction of cane toads in Australia and one other local example of the introduction of an alien species. | |
| C.3.A2 | Discussion of the trade-off between control of the malarial parasite and DDT pollution. | |
| C.3.A3 | Case study of the impact of marine plastic debris on Laysan albatrosses and one other named species. | |
| C.3.S1 | Analysis of data illustrating the causes and consequences of biomagnification. | |
| C.3.S2 | Evaluation of eradication programmes and biological control as measures to reduce the impact of alien species. |
Video lessons
Battle of the Beaks
Languages
| |||
Class activities
Bug Hunters activity
| |||
|
|
Review materials
Review Lecture