Question 1

State one example of ex situ conservation.

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Question 2

A critically endangered bird has fewer than 30 individuals left. The wetland it depends on is polluted and nesting sites are being destroyed. Identify the most appropriate immediate strategy.

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Question 3

Identify whether creating a protected area is an in situ or ex situ conservation strategy.

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Question 4

A critically endangered frog is kept in a laboratory where eggs are raised and tadpoles are grown to adulthood for later release. Identify the conservation strategy being used.

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Question 5

Define in situ conservation and ex situ conservation.

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Question 6

Define the term ex situ conservation.

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Question 7

A population of sea turtles is declining due to egg harvesting and plastic pollution. Outline two actions that would reduce threats in the wild before any reintroduction is attempted.

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Question 8

A captive breeding programme produces 40 young animals per year, but the original forest habitat is still being cleared for farming. Suggest why releasing the animals now would be ineffective.

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Question 9

A conservation plan lists four steps: reduce threats, protect and restore habitat, create an ex situ safety net, then reintroduce and monitor. Explain why this sequence is logical.

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Question 10

A country has limited funding. It can either expand protected areas or build a new zoo breeding facility for one flagship species. Suggest two factors that should guide the decision.

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Question 11

A zoo starts a captive breeding programme with only 12 individuals of a big cat species. Suggest one genetic problem that could occur and explain why.

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Question 12

A rare plant is threatened by a new fungal disease and also by habitat fragmentation. Suggest one in situ method and one ex situ method that could be used together.

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Question 13

A seed bank stores seeds from a drought-tolerant tree species that is disappearing due to repeated wildfires. Explain how a seed bank can help prevent extinction.

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Question 14

The map shows several protected areas in a tropical country, along with major roads, rivers, and a large city. Evaluate the design of the protected area network as a strategy to conserve biodiversity. [4]

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Question 15

Outline one genetic limitation of captive breeding programmes.

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Question 16

State one condition needed for a successful reintroduction to the wild.

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Question 17

A captive-bred predator is released into a protected area but many individuals die within weeks. Suggest two reasons why reintroduction can fail.

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Question 18

A conservation team wants to use ex situ methods for a bird species whose nesting forest has been cleared for agriculture. Explain why ex situ conservation alone may not be enough.

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Question 19

A small island has a rare lizard threatened by an invasive predator. Suggest one reason why an ex situ “insurance population” might be started immediately.

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Question 20

Table 1 shows a conservation project over five years. The project added anti-poaching patrols, expanded a protected area, and ran a captive breeding programme with later releases.

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Topic 3.6: In Situ vs Ex Situ Conservation Questions

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