Maintaining biodiversity: evaluate a programme
Diperkenalkan| English | Makna |
|---|---|
| conservation/ˌkɒnsəˈveɪʃn/ | konservasi |
| habitat regeneration/ˈhæbɪtæt riːˌdʒenəˈreɪʃn/ | regenerasi habitat |
What would explain this observation?
- Breeding endangered animals without protecting suitable habitat may leave nowhere for them to survive. Conservation 保护 measures need to work together.
Build the model
- Conservation programmes can breed endangered species and protect or regenerate rare habitats.
- Field margins and hedgerows restore shelter and resources around single-crop fields.
- Reducing deforestation and carbon-dioxide emissions can limit wider pressures.
- Recycling resources reduces demand for some new materials and landfill disposal.
- conservation: Actions maintaining species and functioning habitats.
- habitat regeneration 生境恢复: Recovery or restoration of a habitat’s condition.
Which plan addresses both a species and its living conditions?
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A species cannot persist without its habitat, so effective programmes pair breeding support with protecting the conditions the species needs. Releases without monitoring, or money counts, show activity rather than success.
Match each technical term to its precise meaning.
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Use the definitions to distinguish related quantities and processes.
Choose evidence that can test it
- Each measure has benefits and limitations.
- Breeding needs genetic diversity and suitable release conditions; habitat restoration takes time; land set aside for biodiversity may compete with production.
- Human interactions can be positive or negative depending on the action and its context.
- A justified evaluation weighs evidence and conflicting pressures rather than listing only advantages.
In the lab: Compare supplied proposals with costs, species records and local needs. State which mechanism each action targets and propose matched monitoring before and after implementation. Use equal survey effort and suitable comparison areas where possible. Do not release captive organisms or introduce species as a classroom experiment.
Which two habits make the investigation or model in this case more defensible?
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Stating the conditions and assumptions lets others repeat the work exactly, and recording the supporting evidence lets them check the conclusion. Hiding disagreeing results removes the evidence that could challenge a wrong conclusion, and one measurement can never establish a wider claim.
Work from known quantities
- Known: equal-effort surveys record 8 species before a fictional habitat programme and 12 afterwards.
- Increase = 4 species, or 50% of the initial recorded richness.
- A comparison site and repeated seasons would help determine whether the programme contributed to the change.
Your turn: Recorded richness rises from 10 to 15 species under equal sampling. Find percentage increase.
Recorded richness rises from 10 to 15 species under equal sampling. Find percentage increase.
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The result is 50 %. Known: richness rises from 10 to 15 species under equal sampling. Increase = 5 species. Percentage increase = 5/10 x 100 = 50%. A comparison site is still needed to credit the programme.
Check the conclusion and its limits
- A larger release count alone does not show successful conservation.
- A field margin supports more than decorative plants: it can provide food, shelter and connectivity.
- Recycling cannot repair every habitat already lost, so different measures address different pressures.
Not true: Releasing more captive animals proves their wild population is sustainable. Sustainability means the wild population maintains itself. Repeated releases can mask a population that cannot breed or survive unaided - release numbers alone prove nothing.
- Conservation programmes can breed endangered species and protect or regenerate rare habitats.
- Each measure has benefits and limitations.
- Watch for: A larger release count alone does not show successful conservation.
Releasing more captive animals proves their wild population is sustainable.
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Sustainability means the wild population maintains itself. Repeated releases can mask a population that cannot breed or survive unaided - release numbers alone prove nothing.
Actions maintaining species and functioning habitats: write the technical term.
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conservation means Actions maintaining species and functioning habitats.