Transcript Conservation Strategies - aiss-dp-ess

CONSERVATION
STRATEGIES
EX-SITU and IN-SITU
Ex – situ
outside
In – situ
inside
site
Examples
• Captive breeding –
zoos
• Botanic gardens
• Seed banks
site
Example
• Nature reserves
• National Parks
• Marine Parks
• Biosphere Reserves
SEED BANKS
• Seeds collected and stored
• -10ºC to -20ºC
• Remain viable for many years but
not forever!!
• So … will need to be germinated
and grown to produce replacement
seeds
BOTANIC GARDENS
• e.g. Royal Botanic Gardens of Kew
• Many different species of plants
are grown
• Gardens and greenhouses
CAPTIVE BREEDING
PROGRAMS
• i.e. zoos
• Animals are caught and put in a
zoo
• Encouraged to breed
• When numbers are high enough,
can be released back into the wild
• e.g. Prezwalski horse
NATURE RESERVES
• Species is conserved in its natural
habitat
• May be terrestrial or marine
Advantages
• Species remain adapted
to habitat
• Greater genetic diversity
conserved
• Natural behavior
patterns maintained
• Interactions between
species help whole
ecosystem
Disadvantages
• May not be safe to leave
very rare species in the
wild
• Habitat loss forces
removal of threatened
species
Ex-situ measures
MANAGEMENT ISSUES
• Elimination of alien species (particularly
predators and invasive plants)
• Restoration of degraded areas
• Implementation of measures to encourage
threatened species (e.g. supplementary
feeding)
• Controlling human exploitation e.g. hunting
DESIGNING and MANAGING
NATURE RESERVES
The Thai government has purchased a piece of
land to turn into a nature reserve for the
education and enjoyment of the public.
Your organisation has been given the task of
designing and managing the reserve.
You must consider how to address the
management issues covered in the previous
slide as well as how to incorporate the needs
of vistors to the reserve.
INTERNATIONAL AGENCIES
and MEASURES
Research one of the following agencies or
conservation measures and report back to the class
on the role it plays in international conservation
efforts.
• CITES – Convention on International Trade in Endangered
Species
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WWF – World Wildlife Fund
IUCN – World Conservation Union
Convention on Biological Diversity
UNEP – United Nations Environment Programme