Conservation and Landscape Recovery Flashcards

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1
Q

What are the main issues around biodiversity?

A
  • Over exploitation of species
  • Invasive/alien species
  • Pollution/climate change
  • Habitat loss
  • Land use change
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2
Q

What is the conservation of biodiversity concerned with?

A

1) Preventing extinction
2) Retaining populations
3) Retaining genetic diversity
4) Retaining ecosystem functioning

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3
Q

What is the history of perspectives on conservation?

A

1960/70s - Nature for itself
- Focus on protected areas, species and wilderness

1980/90s - Prioritise individual species conservation
- Red list, eco regions, IUCN protected area categories

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4
Q

How is conservation driven by values?

A
  • Some species we would rather no exist - small pox
  • Inequalities in conservation - some species valued over others
  • Different motivations - ethical, aesthetic, economic
  • Benefits to nature - beneficial to us
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5
Q

What are the aesthetic or recreational motivations for conservation?

A
  • People like nature

- Access to nature is beneficial to health/well being

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6
Q

What is the moral and ethical motivations for conservation ?

A
  • Sanctity of life - right to exist

- Owe it to future generations to preserve for them what is available to us

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7
Q

What are the economic motivations for conservation?

A
  • Wild organisms used for economic benefit
  • Agriculture
  • Medicine
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8
Q

Examples of conservation legislation around the world

A
  • IUCN red list of threatened species - 1964
  • Biodiversity plans - 1970s
  • Convention on biological diversity
  • FAO international treaty on plant genetic resources for food and agriculture
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9
Q

What are the objectives of the convention on biological diversity (CBD)?

A
  • Conservation of biological diversity
  • Sustainable use of its components
  • Fair and equitable sharing of the benefits of using genetic resources
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10
Q

What are the key achievements of the convention on biological diversity (CBD)?

A
  • National action plan in 130 countries
  • Protected area coverage doubled in 20 years
  • Water quality in rivers improved from 80s
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11
Q

How does conservation happen?

A

1) Protected areas - by conserving ecological communities, majority of species conserved
2) Interventions - interventions for individual species, localised efforts

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12
Q

Define a protected area

A

Clearly defined geographical space, recognised, dedicated and managed through legal or other effective means, to achieve the long term conservation of nature

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13
Q

How is a protected area selected?

A

1) Ecological uniqueness - species richness or rarity
2) Viability - likelihood a species will persist if protected
3) Threats - natural or anthropogenic threats which reduces viability
4) Feasibility - likelihood a site can be protected

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14
Q

What makes a successful protected area?

A

1) Well funded and staffed
2) Environmental education and community outreach
3) Enforcement capacity
4) Community issues and sustainable use need to be considered

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15
Q

Case study of on the effectiveness of protected areas

A
  • Amazon deforestation
  • Pressures from growing population and agriculture
  • strict rotation vs managed by indigenous vs sustainable use areas
  • depends on level of deforestation pressures
  • depends on the intensity of government enforcement
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16
Q

Example of winners and losers in protected areas

A
  • Planning of wildlife corridor in Tanzania 99-02
  • People relocated and compensated 02-08
  • by 2010 farmers not yet resettled on substitute land
  • Women and farmers worst affected
  • Better farmers relative winners
17
Q

Example of an intervention approach to conservation

A
  • NZ eradication and exclusion
  • Islands used
  • Reconstruct interacting groups of native plants and animals
  • This require relocation of native species to islands
  • Island needs pests and predators removed
18
Q

What is an example of killing for conservation and ethical implications

A
  • CAMPFIRE programme in Zimbabwe - 1990s
  • Permits locals to control elephant numbers outside of parks
  • Money from shooting went to local development
  • US Government put pressure to stop due to ethical reasons
19
Q

Examples of conservation failures

A

Northern white rhino, Africa

  • Despite international legislation, poaching increased due to ineffective enforcement combined with poor reserve management
  • decline from 2250 (60s) to 40 (03) to 3 (16)
20
Q

Why do conservation efforts fail?

A

1) Lack of local buy in - relocation of locals
2) Ignoring history
3) Lack of funding
4) Lack of clear goals
5) Lack of law and order

21
Q

How do humans cause degraded land?

A
  • Reduction of habitat area
  • Fragmentation of remaining areas
  • Introduction of new land uses
22
Q

What is the Bonn Challenge?

A
  • UN’s aim to restore 150m ha of deforested/degraded land by 2020
  • 57% of the way there
  • 200 million ha degraded by fire, classed for remote restoration
  • 1.5 billion ha of degraded land suitable for mosaic restoration
  • 0.5 billion ha suitable for wide scale restoration
23
Q

What are the aims and outcomes of effective restoration?

A
  • Increase suitable food production and food security
  • Restore sustainable use of ecosystem services
  • Conserve wildlife
  • Support green economy
  • Climate change mitigation
24
Q

Example of landscape restoration

A
  • Ethiopia
  • Huge areas degraded due to drought, overgrazing
  • Aims to restore ecological integrity and enhance wellbeing
  • Whole landscape approach - mosaic/patchwork
  • involves active vegetation restoration
25
Q

How was the Mediterranean conserved and restored?

A
  • Mosaic of human modified environments
  • Challenge to conserve cultural landscapes alongside restoring degraded ecosystem
  • Key issues - soil erosion, land abandonment and resource exploitation
26
Q

Example of failed reforestation

A
  • Pine plantation in med - 19th century
  • used as it was fast growing, restores soil and reduces flooding
  • But, large dense plantations did not achieve substantial biodiversity conservation
27
Q

Why is active grazing management used for conservation?

A
  • Maintains heterogenous patch-dominated Med landscape of high habitat diversity
  • Promotes biodiversity and ecosystem functioning
  • Reduces homogeneity, fire risk and amenity loss
28
Q

How is motivation used as an ecological service?

A
  • Monetise what nature provides for humans
  • maintain ecological integrity to maintain function and services
  • Increasingly services monetised to finance - protected areas