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Topic 3.3ESS HL98 flashcards

Conservation and regeneration

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Card 1 of 983.3.1
3.3.1
Question

What is an in situ conservation strategy?

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All Flashcards in Topic 3.3

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3.3.112 cards

Card 1example
Question

What is an in situ conservation strategy?

Answer

In situ conservation protects species in their natural habitat, maintaining ecological interactions and natural processes.

đź’ˇ Hint

In habitat.

Card 2example
Question

What is the main way protected areas increase forest cover?

Answer

They reduce land conversion and allow forests to regenerate through succession.

đź’ˇ Hint

Protection → regrowth.

Card 3example
Question

Why are deforestation bans only effective with enforcement?

Answer

Without monitoring and penalties, illegal clearing continues despite the law, so forest loss does not decrease.

đź’ˇ Hint

Rules must be enforced.

Card 4example
Question

Name two features of effective enforcement.

Answer

Monitoring (rangers/satellites/inspections) and real penalties (fines, prosecutions, permit removal).

đź’ˇ Hint

Monitor + punish.

Card 5example
Question

Why is enforcement a key word in deforestation questions?

Answer

Because a law without enforcement rarely changes behaviour or reduces illegal clearing.

đź’ˇ Hint

Law alone is weak.

Card 6example
Question

Name two in situ tools used to conserve biodiversity.

Answer

Protected areas (national parks/reserves) and habitat restoration (e.g., reforestation, wetland repair).

đź’ˇ Hint

Tools list.

Card 7example
Question

How do protected areas increase forest cover over time?

Answer

By restricting land conversion/logging so secondary succession can rebuild forest cover naturally.

đź’ˇ Hint

Restrict clearing → regrowth.

Card 8example
Question

Give one monitoring method used to enforce forest protection.

Answer

Satellite monitoring (also ranger patrols, inspections, remote sensing alerts).

đź’ˇ Hint

How they catch it.

Card 9example
Question

How does enforcement reduce deforestation over time?

Answer

It raises the cost/risk of illegal clearing, reducing land conversion and allowing regrowth through succession.

đź’ˇ Hint

Risk/cost ↑.

Card 10example
Question

Why are wildlife corridors important in fragmented landscapes?

Answer

They connect habitats, allowing movement and gene flow between populations, reducing isolation and inbreeding.

đź’ˇ Hint

Connectivity + gene flow.

Card 11example
Question

What is a common reason enforcement fails?

Answer

Insufficient funding/staff, corruption, or unclear boundaries/land rights leading to weak compliance.

đź’ˇ Hint

Capacity + governance.

Card 12example
Question

Why can in situ conservation fail even if an area is “protected”?

Answer

If enforcement is weak, illegal logging/poaching and continued land pressure can continue inside the protected area.

đź’ˇ Hint

Law ≠ enforcement.

3.3.29 cards

Card 13example
Question

What is Payment for Ecosystem Services (PES)?

Answer

A scheme where landowners are paid to protect or restore ecosystems because they provide valuable services (e.g., carbon storage, clean water).

đź’ˇ Hint

Paid to conserve.

Card 14example
Question

What is the “big idea” behind economic incentives for forest recovery?

Answer

People protect forests more when they can earn money by keeping forests standing rather than clearing them.

đź’ˇ Hint

Value alive > value cleared.

Card 15example
Question

How does PES reduce deforestation?

Answer

It makes conservation financially competitive with clearing land, so landowners keep forests standing.

đź’ˇ Hint

Profit shifts.

Card 16example
Question

Name one incentive-based strategy and one example.

Answer

PES: landowners paid to conserve forests (also ecotourism funding protected areas).

đź’ˇ Hint

Strategy + example.

Card 17example
Question

Why do incentives often work better when combined with laws?

Answer

Incentives encourage compliance, while laws prevent high-profit illegal clearing and set boundaries.

đź’ˇ Hint

Carrot + stick.

Card 18example
Question

How can ecotourism support conservation?

Answer

Tourism income funds protection/enforcement and gives local communities jobs, making intact ecosystems more valuable than cleared land.

đź’ˇ Hint

Nature earns money.

Card 19example
Question

What is one risk of ecotourism as a conservation strategy?

Answer

If unmanaged, tourism can damage habitats (waste, disturbance) or profits may not reach local communities.

đź’ˇ Hint

Needs management.

Card 20example
Question

In one line, why can certification support forest conservation?

Answer

It shifts consumer demand toward sustainably produced goods, rewarding land users who avoid deforestation.

đź’ˇ Hint

Demand signal.

Card 21example
Question

How can certification labels reduce pressure on forests?

Answer

They reward sustainable production with market access/higher prices, encouraging land users to avoid deforestation.

đź’ˇ Hint

Market incentive.

3.3.35 cards

Card 22example
Question

How do protected areas conserve biodiversity?

Answer

They protect core habitats by limiting human activity, allowing populations to survive and reproduce.

đź’ˇ Hint

Protect habitat.

Card 23example
Question

How do wildlife corridors conserve biodiversity?

Answer

They maintain connectivity between habitats, enabling movement and gene flow and reducing isolation.

đź’ˇ Hint

Connectivity.

Card 24example
Question

Give one limitation of small/isolated protected areas.

Answer

Small reserves can suffer from edge effects, inbreeding, and may not support viable populations.

đź’ˇ Hint

Island effect.

Card 25example
Question

Give one limitation of wildlife corridors.

Answer

Corridors may be narrow and vulnerable to edge effects and human disturbance, so design and surrounding land use matter.

đź’ˇ Hint

Design matters.

Card 26example
Question

What is the best overall strategy in fragmented landscapes?

Answer

Combine large protected areas (core habitat) with well-designed corridors (connectivity) to form a network.

đź’ˇ Hint

Combine both.

3.3.410 cards

Card 27example
Question

What is rewilding?

Answer

Rewilding is a conservation approach that restores natural processes and reduces human control so ecosystems can recover.

đź’ˇ Hint

Restore processes.

Card 28example
Question

What happened to Gorongosa National Park before restoration?

Answer

After war, wildlife populations collapsed and the park was left with very few animals.

đź’ˇ Hint

Collapse after conflict.

Card 29example
Question

Name two actions used in rewilding projects.

Answer

Reintroducing key species and restoring connectivity (corridors) (also reducing harmful human activities).

đź’ˇ Hint

Actions list.

Card 30example
Question

How did Gorongosa recover biodiversity?

Answer

By reintroducing/protecting wildlife and working with local communities through jobs and shared benefits.

đź’ˇ Hint

Wildlife + people.

Card 31example
Question

Give one benefit of rewilding for local communities.

Answer

Creates jobs and income (e.g., rangers, guides, tourism), increasing support for conservation.

đź’ˇ Hint

Livelihoods.

Card 32example
Question

Why are keystone species important in rewilding?

Answer

They have a disproportionately large effect on ecosystem structure and processes, so restoring them can trigger wider recovery.

đź’ˇ Hint

Big impact species.

Card 33example
Question

Give one example of a rewilding outcome.

Answer

Reintroduced predators can control herbivore populations, allowing vegetation and habitats to recover.

đź’ˇ Hint

Trophic cascade.

Card 34example
Question

Give one challenge of large-scale rewilding projects.

Answer

They take time, require funding, and may face human-wildlife conflict.

đź’ˇ Hint

Time + conflict.

Card 35example
Question

Why is international cooperation sometimes needed for rewilding?

Answer

Species and ecosystem processes cross borders, so shared planning and support can improve success.

đź’ˇ Hint

Nature crosses borders.

Card 36example
Question

Why can rewilding cause conflict with local people?

Answer

People may fear predators or worry about crop/livestock losses, so planning and community support are essential.

đź’ˇ Hint

Social acceptance.

3.3.518 cards

Card 37example
Question

In one sentence, define in situ conservation.

Answer

Protecting species in their natural habitat, conserving ecosystems and interactions.

đź’ˇ Hint

Definition line.

Card 38example
Question

Define in situ conservation.

Answer

In situ conservation means protecting species within their natural habitat and conserving the wider ecosystem.

đź’ˇ Hint

In habitat.

Card 39example
Question

Why does in situ conservation support higher genetic diversity?

Answer

Populations are usually larger in the wild, reducing bottlenecks and maintaining variation for adaptation.

đź’ˇ Hint

Large populations.

Card 40example
Question

What is zonation in protected areas?

Answer

Dividing an area into zones (core, buffer, transition) to reduce human impact while allowing limited use where appropriate.

đź’ˇ Hint

Core/buffer/transition.

Card 41example
Question

Why is in situ usually the best long-term conservation option?

Answer

It maintains food webs, ecosystem processes, and natural selection, supporting viable populations over time.

đź’ˇ Hint

Ecosystems + processes.

Card 42example
Question

Why is in situ generally preferred long-term?

Answer

It protects whole ecosystems and supports natural processes and adaptation.

đź’ˇ Hint

Whole system.

Card 43example
Question

How does anti-poaching enforcement reduce biodiversity loss?

Answer

Patrols, monitoring, and penalties reduce illegal killing, increasing survival and reproduction of threatened species.

đź’ˇ Hint

Survival ↑.

Card 44example
Question

Name two ecosystem processes protected by in situ conservation.

Answer

Pollination and decomposition (also nutrient cycling, predation, seed dispersal).

đź’ˇ Hint

Processes list.

Card 45example
Question

Name three in situ tools.

Answer

Protected areas, habitat restoration, and laws/enforcement (also corridors and sustainable harvesting).

đź’ˇ Hint

3 tools.

Card 46example
Question

Name three in situ methods examiners expect.

Answer

Protected areas, restoration, and corridors (also laws/enforcement).

đź’ˇ Hint

3 methods.

Card 47example
Question

Why is habitat-based conservation often efficient?

Answer

Protecting a habitat usually protects many species at once, not just a single target species.

đź’ˇ Hint

Many species at once.

Card 48example
Question

Give one example of sustainable harvesting.

Answer

Fishing quotas/closed seasons/size limits that prevent overharvesting and allow populations to recover.

đź’ˇ Hint

Harvest limits.

Card 49example
Question

Why can community-based conservation improve outcomes?

Answer

If local people benefit, they support protection and reduce illegal use, improving long-term sustainability.

đź’ˇ Hint

Benefits → support.

Card 50example
Question

Why can climate change reduce in situ effectiveness?

Answer

Conditions may shift faster than species can adapt or migrate, making habitats unsuitable even if protected.

đź’ˇ Hint

Habitat shifts.

Card 51example
Question

How do wildlife corridors support in situ conservation?

Answer

They enable dispersal and gene flow between populations, reducing isolation and supporting recolonisation.

đź’ˇ Hint

Move + mix genes.

Card 52example
Question

How does invasive species control support in situ conservation?

Answer

Removing/controlling invasives reduces competition/predation on native species, allowing native populations to recover.

đź’ˇ Hint

Reduce invasive pressure.

Card 53example
Question

What is one situation where in situ is difficult?

Answer

When habitat is heavily degraded/fragmented or threats like poaching and invasives cannot be controlled.

đź’ˇ Hint

Threats too high.

Card 54example
Question

When is in situ most likely to fail?

Answer

When threats remain high or habitat is too degraded to support viable populations.

đź’ˇ Hint

Threats + habitat.

3.3.622 cards

Card 55example
Question

Define ex situ conservation.

Answer

Ex situ conservation protects a species outside its natural habitat (e.g., zoos, botanic gardens, seed banks).

đź’ˇ Hint

Outside habitat.

Card 56example
Question

Define ex situ conservation.

Answer

Ex situ conservation protects a species outside its natural habitat (e.g., zoos, botanic gardens, seed banks).

đź’ˇ Hint

Outside habitat.

Card 57example
Question

What is reintroduction?

Answer

Returning individuals bred/kept ex situ back into suitable wild habitats.

đź’ˇ Hint

Back to wild.

Card 58example
Question

In one line, what does ex situ mean?

Answer

Protecting species outside their natural habitat.

đź’ˇ Hint

Outside habitat.

Card 59example
Question

Give one benefit of ex situ conservation.

Answer

It can prevent extinction by keeping individuals safe and allowing population growth via breeding.

đź’ˇ Hint

Stops extinction.

Card 60example
Question

Give one limitation of ex situ conservation.

Answer

Small captive populations can lead to low genetic diversity (bottleneck/inbreeding).

đź’ˇ Hint

Genetics risk.

Card 61example
Question

Name three examples of ex situ conservation.

Answer

Zoos, botanic gardens, seed banks (also captive breeding).

đź’ˇ Hint

Zoo + seeds.

Card 62example
Question

Name two ex situ examples.

Answer

Zoos/captive breeding programmes and seed banks (also botanic gardens).

đź’ˇ Hint

Zoo + seeds.

Card 63example
Question

Name one condition needed for successful reintroduction.

Answer

The original threat must be removed or controlled (e.g., poaching stopped).

đź’ˇ Hint

Threat removed.

Card 64example
Question

Name three examples of ex situ conservation.

Answer

Zoos/wildlife parks, botanic gardens, and seed banks (also captive breeding and cryopreservation).

đź’ˇ Hint

Zoo + seeds.

Card 65example
Question

What is the biggest limitation of ex situ alone?

Answer

It does not fix habitat loss or threats in the wild.

đź’ˇ Hint

No habitat fix.

Card 66example
Question

When is ex situ most useful?

Answer

When extinction risk is high and in situ protection is failing (e.g., habitat destroyed or threats cannot be controlled).

đź’ˇ Hint

Emergency backup.

Card 67example
Question

Why can reintroduction fail even after captive breeding?

Answer

If habitat is still degraded/fragmented or threats continue, released animals may not survive or reproduce.

đź’ˇ Hint

Habitat not ready.

Card 68example
Question

Why can ex situ be expensive?

Answer

It requires facilities, specialist staff, long-term care, and ongoing funding for breeding/management.

đź’ˇ Hint

High running costs.

Card 69example
Question

What is one educational benefit of zoos/botanic gardens?

Answer

They raise awareness and can generate funding/support for conservation.

đź’ˇ Hint

Education + funding.

Card 70example
Question

What is one goal of captive breeding in ex situ programmes?

Answer

To increase population size safely and (when possible) supply individuals for later reintroduction.

đź’ˇ Hint

Breed then release.

Card 71example
Question

What is one behavioural issue for captive-bred animals?

Answer

They may lack survival skills (e.g., hunting/avoiding predators) and need training or gradual release.

đź’ˇ Hint

Skills gap.

Card 72example
Question

Why is genetic diversity a key exam point for ex situ?

Answer

Captive populations are often small, so inbreeding and bottlenecks can reduce adaptability and survival.

đź’ˇ Hint

Small pop → low variation.

Card 73example
Question

Why is ex situ often described as a “backup” strategy?

Answer

It buys time for a species while in situ threats are reduced and habitat is restored for possible reintroduction.

đź’ˇ Hint

Buys time.

Card 74example
Question

Why can ex situ not replace in situ conservation?

Answer

It does not protect ecosystems or remove the original threats, so long-term survival still depends on habitat protection.

đź’ˇ Hint

Doesn’t fix habitat.

Card 75example
Question

What must be true for reintroduction to work?

Answer

Threats must be reduced and habitat must be suitable to support the species again.

đź’ˇ Hint

Threats down + habitat ready.

Card 76example
Question

Why is monitoring important after reintroduction?

Answer

It checks survival, movement, and breeding success, and helps managers adjust protection if problems occur.

đź’ˇ Hint

Track success.

3.3.722 cards

Card 77example
Question

What is the main difference between in situ and ex situ conservation?

Answer

In situ protects species in their natural habitat; ex situ protects them outside the habitat.

đź’ˇ Hint

In habitat vs outside.

Card 78example
Question

What is the main difference between in situ and ex situ conservation?

Answer

In situ protects species in their natural habitat; ex situ protects them outside the habitat as an emergency backup.

đź’ˇ Hint

In habitat vs outside.

Card 79example
Question

Name one factor that pushes you toward ex situ conservation.

Answer

Very high urgency of extinction risk (population too small to survive in the wild).

đź’ˇ Hint

Urgency.

Card 80example
Question

What is Step 1 in the “combined strategy” model answer?

Answer

Reduce threats in the wild (laws, enforcement, control of invasives/poaching).

đź’ˇ Hint

Threats first.

Card 81example
Question

In one line, what is in situ best for?

Answer

Long-term protection of ecosystems and natural processes.

đź’ˇ Hint

Long-term.

Card 82example
Question

What is Step 2 in the combined approach?

Answer

Protect and restore habitat in situ (protected areas, restoration, corridors).

đź’ˇ Hint

Habitat repair.

Card 83example
Question

In one line, what is ex situ best for?

Answer

Preventing extinction in the short term when wild survival is unlikely.

đź’ˇ Hint

Short-term backup.

Card 84example
Question

Why is a combined strategy often best?

Answer

It reduces immediate extinction risk while restoring habitat for long-term survival.

đź’ˇ Hint

Now + long-term.

Card 85example
Question

Name one factor that pushes you toward in situ conservation.

Answer

Habitat is still intact and threats can be reduced/managed effectively.

đź’ˇ Hint

Habitat OK.

Card 86example
Question

Which strategy is generally best long-term and why?

Answer

In situ, because it protects ecosystems, interactions, and natural processes that support viable populations.

đź’ˇ Hint

Whole ecosystem.

Card 87example
Question

What is Step 3 in the combined approach?

Answer

Create an ex situ safety net (captive breeding/seed bank/gene bank) to prevent extinction.

đź’ˇ Hint

Backup.

Card 88example
Question

Why does “threat controllability” matter when choosing a strategy?

Answer

If threats like poaching/invasives cannot be controlled, in situ may fail and ex situ backup becomes important.

đź’ˇ Hint

Can you control threats?

Card 89example
Question

Which strategy is often used when extinction risk is immediate?

Answer

Ex situ (captive breeding/seed banks) to prevent extinction while threats are addressed.

đź’ˇ Hint

Emergency.

Card 90example
Question

What is the key reason “combined strategy” is often best?

Answer

It addresses both immediate extinction risk and long-term habitat/ecosystem recovery.

đź’ˇ Hint

Now + later.

Card 91example
Question

What should you always justify with in evaluation answers?

Answer

Your chosen strategy using threats, habitat condition, genetic diversity, and feasibility.

đź’ˇ Hint

Justify choice.

Card 92example
Question

What is Step 4 in the combined approach?

Answer

Reintroduce and monitor populations once habitat and threats are suitable.

đź’ˇ Hint

Release + monitor.

Card 93example
Question

Which checklist factor links directly to adaptability?

Answer

Genetic diversity potential (larger, connected populations maintain variation for adaptation).

đź’ˇ Hint

Variation matters.

Card 94example
Question

Give one limitation of ex situ compared to in situ.

Answer

Ex situ does not conserve ecosystems and may reduce genetic diversity due to small captive populations.

đź’ˇ Hint

No ecosystem + genetics.

Card 95example
Question

What is the exam-friendly final judgement sentence?

Answer

Therefore, in situ is preferred long-term, but ex situ is vital as a safety net when extinction risk is high.

đź’ˇ Hint

Judgement line.

Card 96example
Question

Why is ex situ alone usually not a “best answer”?

Answer

It can save species short-term but cannot replace habitat protection and ecosystem function.

đź’ˇ Hint

No habitat = not enough.

Card 97example
Question

Why should feasibility/cost be mentioned in evaluation answers?

Answer

Because long-term conservation only works if funding, capacity, and local support can be maintained.

đź’ˇ Hint

Can it be sustained?

Card 98example
Question

What do many real conservation programmes use for best results?

Answer

A combined approach: protect/restore habitat in situ and use ex situ as a safety net.

đź’ˇ Hint

Mix both.

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