Negative human interactions with ecosystems and impacts on biodiversity
I can describe negative impacts of humans on biodiversity in different ecosystems.
Negative human interactions with ecosystems and impacts on biodiversity
I can describe negative impacts of humans on biodiversity in different ecosystems.
Lesson details
Key learning points
- Increasing human population size requires increased land use for resources (including food and fuels) and urbanisation.
- Increased land use by humans leads to habitat destruction, e.g. deforestation and biodiversity loss.
- Increasing human population size increases production of waste and pollution, leading to biodiversity loss.
- Release of greenhouse gases contributes to climate change, including global warming, leading to biodiversity loss.
- There is very strong evidence linking human release of greenhouse gases to global climate change.
Keywords
Urbanisation - Urbanisation is the increase in the number of people living in towns and cities (urban areas).
Deforestation - Deforestation is the removal of trees; often to use for timber or fuel or to repurpose land for houses or farming.
Biodiversity - Biodiversity is the range of different living organisms (species) that live in a place.
Greenhouse gas - Greenhouse gases are gases that are responsible for the greenhouse effect by absorbing infrared radiation and trapping ‘heat’ in the atmosphere.
Climate change - Climate change is a long term shift in weather patterns.
Common misconception
A common misconception is that a small increase in greenhouse gases and a small rise in Earth's temperature will not have much impact on organisms on Earth beyond polar ice melting.
The lesson outlines how human activities increase the concentration of greenhouse gases in the atmosphere and how this links to climate change. The lesson also outlines how climate change impacts life on Earth.
Equipment
None required.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
increases methane in the atmosphere
destroys habitats
destroys habitats and stops carbon dioxide being taken up by producers
increases the level of carbon dioxide in the atmosphere