Chapter 4 - Conservation Abroad Flashcards

0
Q

Define: Abiotic Factors

A

Physical factors such as light, temperature and water.

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1
Q

Define: Species

A

A group of organisms that resemble each other more than other organisms and naturally interbreed to produce fertile offspring.

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2
Q

Define: Biotic Factors

A

Biological factors such as food and disease.

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3
Q

Define: Nutrient

A

Any chemical that is essential to an organisation for growth or for metabolic processes.

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4
Q

Define: Microclimate

A

A small area with a climate that is different from the surrounding area.

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5
Q

Define: Biomass

A

The total mass of living or recently living material in an area.

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6
Q

Define: Carbon Sequestration

A

Any process that is used to remove carbon dioxide from the atmosphere, such as afforestation or underground storage.

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7
Q

Define: Slash and Burn Farming

A

Farming in a forest where a clearing is created by burning and is farmed for a few years until nutrient depletion and weed growth cause it to be abandoned, as a new clearing is created elsewhere.

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8
Q

Define: LEDCs

A

Less Economically Developed Countries

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9
Q

Define: CITES

A

The Convention on International Trade in Endangered Species (of wild fauna and flora).

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10
Q

Define: Plankton

A

Organisms that drift in the surface layers of the sea or other water bodies.

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11
Q

Define: Symbiosis

A

A relationship between organisms of different species that live together. One benefits while the other species may benefit, be unaffected or suffer.

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12
Q

Define: No-Take Zone

A

An area where the catching or removal of species is banned e.g. areas where fishing is not allowed.

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13
Q

Define: Upwelling

A

An upwelling is where deep ocean water comes to the surface, often carrying nutrients and causing rich algal blooms.

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14
Q

Define: Albedo

A

A measure of the reflectivity of a surface. more reflectivity surfaces have higher albedos.

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15
Q

Define: UV Light

A

UV is short wavelength radiation emitted by the sun. Its energy can cause chemical reactions to take place, such as in the ozone layer or sunburn and DNA damage.

16
Q

Define: British Antarctic Survey (BAS)

A

UK research organisation that operates in Antarctica.

17
Q

Define: Antarctic Treaty

A

An international agreement to protect and manage Antarctica.

18
Q

What resources do rainforests produce?

A
  • Timber (construction of buildings/furniture)
  • Fuel
  • Plant foods (bananas, oranges, yams, grapefruit)
  • Bushmeat (eaten by local population)
  • Spices (pepper, cinnamon, turmeric)
  • Palm leaves (roofing materials)
  • Fibres (cellulose)
  • Resins (incense)
  • Palm oil
  • Wax (polishing floors, cars, coating confectionery)
19
Q

What is the importance of Tropical Rainforests?

A
  • Rainforest resources
  • Biodiversity
  • Economic value of unexploited resources
  • Carbon sequestration
  • Rainfall
  • Soil conservation
20
Q

What are the threats to Tropical Rainforests?

A
  • Fuelwood (unsustainable)
  • Timber (construction/furniture)
  • Agriculture (increasing supplies of food)
  • Mineral extraction (deforestation for rich mineral deposits)
  • Reservoirs (HEP schemes flood areas)
  • Global climate change (rainfall less likely)
21
Q

What are the conservation activities of rainforests?

A
  • Debt-for-nature Swaps (giving money to cancel debt)
  • Protected Areas
  • Trade Controls (Limited trade from sustainably managed resources)
22
Q

What are the abiotic conditions required by coral reefs?

A
  • Warm temperatures (25-29 degrees)
  • Bright sunlight (algal photosynthesis)
  • Low turbidity (prevents physical damage)
  • Constant salinity
  • Hard substrate (polyp attachment)
23
Q

What are the threats to coral reefs?

A
  • Physical Damage (swimmers, boat anchors, litter)
  • Souvenirs/Ornaments (tourist souvenirs)
  • Sediments (kills polyps)
  • Climate Change (polyps survive in narrow range of temperature)
  • Pollution (oil, pesticides, cyanide)
  • Fishing (overexploitation)
  • Disease/Predation (Algae provide sugar for bacteria)
24
Q

Where are the conservation methods for conserving coral reefs?

A
  • Fixed mooring buoys (boats do not need anchors)
  • Divers educated and trained (learn not to touch polyps)
  • No-Take Zones (protect breeding population)
  • Ecotourism (motivate conservation efforts)
  • Control coastal developments (safe waste disposal)
  • Control land activities (reduce soil erosion)
  • Environmental protection (protect mangroves)
25
Q

What are the unique features of Antarctica that makes it important?

A
  • Ice regulates sea levels (store water on land)
  • High albedo (reduce atmospheric heating)
  • Krill faeces contain carbon (major carbon sink)
26
Q

What are the threats to Antarctica?

A
  • Global climate change (glacier movement towards sea)
  • Ozone depletion (marine plankton decline)
  • Tourism (waste disposal, oil spills, wildlife disturbance)
  • Overfishing (foodwebs affected)
  • Future mineral extraction (reserve depletion)
  • Scientific research (building construction impact)
27
Q

What are the main provisions of the Antarctic Treaty?

A
  • Antarctica only used for peaceful purposes.
  • Free exchange of scientific research.
  • Nuclear explosions/radioactive waste banned.
  • Commercial mineral exploitation banned.
  • Living organism conservation.
  • Tourism environmental impact monitored.