Ecosystems 10

Year 10 Topic 2 – Learning Opportunity 10: Maintaining Biodiversity
This learning opportunity has 5 tasks to complete.
Target time: 40 minutes.

By the end of this learning opportunity you will be able to: explain the benefits of maintaining local and global biodiversity, including the conservation of animal species and the impact of reforestation.

Key words: biodiversity, reforestation, climate, ecosystems, moral, aesthetic, conservation, seed bank, zoo, poaching, nature reserve.

Task 1: Fill in the gaps to define biodiversity. Watch the video to help you.

Biodiversity is the variety of __________ things within an __________.

Find the answer at the end of the blog.

Task 2: Sort the statements into two lists. One of human actions which have a negative impact on biodiversity. One of human actions which have a positive impact on biodiversity.

Recycling, driving, mining, breeding programmes, deforestation, combustion, planting trees (reforestation), cycling, large-scale agriculture, fish farming, poaching, building and construction, introducing new species, zoos, walking, printing, nature reserves.

Find the answers at the end of the blog.

Task 3: Match each conservation strategy for improving/maintaining biodiversity with how it helps.

Conservation StrategyHow it helps improve/maintain biodiversity
ReforestationPlanting a variety of trees encourages species to return to the woodland by providing more habitats for animals and plants to live
Protecting natural habitats e.g. nature reservesAllows animals to be bred and reintroduced into the wild. They can act as insurance populations and prevent species from becoming extinct.
Captive breeding programmes e.g. zoosStores and distributes seeds of plants. The seeds are insurance populations in case wild populations become endangered/extinct.
Seed banksPrevent poaching and damage to habitats, preserving natural populations

Find the answers at the end of the blog.

Task 3: Complete the table by listing 6 reasons why we should protect biodiversity. Add a sentence to describe each one. Add an image to represent each one. You should rewatch the video from task 1.







Task 1: Answer

Biodiversity is the variety of living things within an area.

Task 2: Answers

Positive Impact – Recycling, breeding programmes, planting trees (reforestation), cycling, fish farming (could argue sometimes negative), zoos, nature reserves.
Negative Impact – Driving, mining, deforestation, combustion, large-scale agriculture, poaching, building and construction, introducing new species (could argue sometimes positive), printing.

Task 3: Answers
Task 4: Answers
Medicine – wild plants produce life saving medicines.Culture – some species are important for cultural reasons to certain populations.Jobs – conservation efforts create jobs e.g. in zoos or reforestation.
Ecotourism – people like to visit places with good biodiversity e.g. rainforests/coral reef, this brings income/jobs.Food webs – removing some species means food webs become unstable, there is a knock on effect as organisms are interdependent.Food – wild varieties of plants are grown for food/crops.

Task 4: Complete the quiz using the link below.


Challenge Task: Choose one of the conservation projects funded by Bristol Zoo (link below) to read about and prepare a short presentation.

End of Learning Opportunity 10