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Interactive Ecosystem Mapping

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Interactive Ecosystem Mapping

A fishing harbour is planning a student-led ecosystem survey. Use the site descriptions and data below to identify ecosystem patterns, interpret evidence and recommend conservation action. The global sites are broad study locations, not precise coordinates. Answer in complete sentences where appropriate.

1 | Read the sites

Use the labelled sites A–D and their descriptions in Question 2 for Questions 1–3. Site B is in the Sahara, near 23°N, close to the Tropic of Cancer.

1.Which site is most likely to have a hot desert ecosystem, and what broad latitude clue supports your choice?
2.Match each site name in the left column to an ecosystem type in the shuffled right column. Then give one characteristic that supports each match.
  • A — Amazon Basin
  • B — Sahara
  • C — Arctic site
  • D — North Atlantic site
  • Tropical rainforest
  • Tundra
  • Marine
  • Hot desert
3.Which statement best explains why latitude helps predict broad ecosystem patterns, but cannot determine every local ecosystem on its own?
  • Latitude affects incoming solar energy and climate, but altitude, ocean currents, relief and local rainfall also matter.
  • Latitude directly determines the species present, regardless of water or soil.
  • Every place at the same latitude has identical rainfall and vegetation.
  • Latitude is unrelated to climate; only human activity shapes ecosystems.
4.Site D is in the North Atlantic. Explain why a marine ecosystem is not simply one uniform habitat. Include two physical conditions that can vary across the ocean.

2 | Evidence from the harbour survey

Idris and Evie compare two coastal transects near their fishing harbour. They record percentage cover of kelp and the number of juvenile fish observed in equal-sized survey plots.

Survey plot

Kelp cover (%)

Juvenile fish count

1

15

8

2

35

17

3

55

29

4

75

39

5

90

43

5.Describe the relationship between kelp cover and juvenile fish count in these five plots. Use at least two pairs of figures as evidence.
6.Does this small survey prove that kelp cover causes higher juvenile fish numbers? Give one reason for your judgement and one other variable the team should measure.
7.Imogen proposes restricting anchoring in the kelp-rich part of the harbour. State one likely ecosystem benefit and one possible trade-off for people who use the harbour.

3 | Make a mapping decision

Use the global site descriptions in Question 2 and the harbour survey evidence to build a justified conservation recommendation. Site A is the Amazon Basin, Site B is the Sahara, Site C is an Arctic location, and Site D is in the North Atlantic.

8.Choose one global site, A–D, where monitoring should prioritise a climate-related ecosystem pressure. Name the pressure and explain one way it could affect organisms or ecosystem processes there.
9.Write a two-sentence recommendation for the harbour survey team. It must name a location to protect, cite one piece of survey evidence, and suggest one further piece of data to collect before deciding on a long-term plan.

3 printable pages

  • Interactive Ecosystem Mapping, page 1 of 3: 1 | Read the sites

    Page 1

  • Interactive Ecosystem Mapping, page 2 of 3: 2 | Evidence from the harbour survey

    Page 2

  • Interactive Ecosystem Mapping, page 3 of 3: 3 | Make a mapping decision

    Page 3

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