Option C: Impacts of humans on ecosystems
Pollutants become concentrated in the tissues of organisms at higher trophic levels by biomagnification.
Skill: Analysis of data illustrating the causes and consequences of biomagnification. Click link to illustrate NOAA biomagnification of mercury levels in fish and birds.
Skill: Analysis of data illustrating the causes and consequences of biomagnification. Click link to illustrate NOAA biomagnification of mercury levels in fish and birds.
Competitive exclusion and the absence of predators can lead to reduction in the numbers of endemic species when alien species become invasive
This interactive simulation shows how populations behave when grown alone or when mixed together. This is competitive exclusion - how can this be illustrated with an invasive species population?
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Introduced alien species can escape into local ecosystems and become invasive.
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Application: Discussion of the trade-off between control of the malarial
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Macroplastic and microplastic debris has accumulated in marine environments.
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International-mindedness:
Over 100 countries across the globe have agreed to ban the production of CFCs to reduce the depletion of the ozone layer.
Aims:
Aim 8: Many developed countries export toxic waste to less developed countries. Is financial compensation a fair exchange for hazardous waste?
Over 100 countries across the globe have agreed to ban the production of CFCs to reduce the depletion of the ozone layer.
Aims:
Aim 8: Many developed countries export toxic waste to less developed countries. Is financial compensation a fair exchange for hazardous waste?