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Berry Island Ecosystem Worksheet

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Berry Island Ecosystem Worksheet

Investigate how living things at Berry Island are connected. Use the information and food web below to answer each question. Berry Island is a real place in Sydney Harbour; the ecosystem details in this worksheet are a simplified learning model, not a survey of every species at the site.

A harbour ecosystem

Berry Island is a small, bush-covered headland in Sydney Harbour, on the lands of the Cammeraygal people. Its bushland, rocky shore and surrounding water provide different habitats. In this simplified example, native plants use sunlight to grow. Insects feed on plants, small birds may feed on insects, and larger birds may prey on smaller birds. Fallen leaves and dead organisms are broken down by fungi and bacteria, returning nutrients to the soil. Animals also need water, shelter and suitable places to breed. First Nations peoples have deep and continuing connections to Country. Aboriginal knowledge of places, seasons and species is diverse and specific to each community. Caring for Country can include observing seasonal changes and making decisions that sustain ecosystems. Do not assume that one practice applies everywhere or that a particular practice occurred at Berry Island without evidence.

SUNLIGHT ↓

NATIVE PLANTS (producer)

INSECTS (primary consumers)

Dead leaves and organisms → fungi and bacteria → nutrients in soil → native plants

Small birds may eat insects

Larger birds may prey on small birds

Investigate the connections

Arrows in the food web show the direction that energy moves: from the food source to the organism that eats it.

1.In the food web, which organism is a producer, and what source of energy does it use to make food?
2.Which option correctly shows energy moving through one pathway in the food web?
  • Insects → native plants → sunlight
  • Sunlight → native plants → insects → small birds
  • Small birds → insects → native plants → sunlight
  • Fungi → sunlight → larger birds
3.A prolonged dry spell reduces the growth of native plants. Predict one likely effect on insects and explain the link.
4.True or false: Fungi and bacteria are important because decomposition returns nutrients to the soil. Explain your choice.
5.Match each role to its description.
  • Producer
  • Consumer
  • Decomposer
  • Gets energy by eating other organisms
  • Makes its own food using an energy source
  • Breaks down dead material and recycles nutrients
6.Complete the idea: Animals need more than food to survive. Two other ecosystem resources they need are and .
7.A visitor suggests removing all fallen leaves to make the reserve look tidy. Give one possible ecological consequence of this action.
8.Why should a claim about a specific Aboriginal ecological practice at Berry Island be supported by reliable local evidence?
9.Write one testable question a field ecologist could investigate at Berry Island about habitat or biodiversity. Include what could be measured.
10.Suggest one practical way visitors can reduce their impact on Berry Island’s ecosystem, and explain how it helps.

3 printable pages

  • Berry Island Ecosystem Worksheet, page 1 of 3: A harbour ecosystem, Investigate the connections

    Page 1

  • Berry Island Ecosystem Worksheet, page 2 of 3: 2. Which option correctly shows energy moving through one pathway in the food web?

    Page 2

  • Berry Island Ecosystem Worksheet, page 3 of 3: 8. Why should a claim about a specific Aboriginal ecological practice at Berry Island be…

    Page 3

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