the importance of wetlandscriteria based on fish supports a significant proportion of indigenous...
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The Importance of WetlandsThe Importance of Wetlands
Shakira AzanNational Environment and Planning Agency
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What are wetlands?What are wetlands?
Areas of marsh, fen, peatland or water,
whether natural or artificial, permanent
or temporary, with water that is static,
flowing, fresh, brackish or salt,
including areas of marine water, the
depth of which at low tide does not
exceed six metres
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Characteristics of WetlandsCharacteristics of Wetlands
� Occupy a transitional zone
� Diversity varies according to origin, geographical location, water regime and chemistry, dominant flora and soil or sediment characteristics
� Sustainability of wetlands depends largely on the dynamics of water supply and loss
� The ecosystem function of a wetland is dependant on its biogeochemical processes
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Types of WetlandsTypes of Wetlands
� Natural Wetlands
– Marine
– Estuarine
– Lacustrine
– Riverine
– Palustrine
� Artificial Wetlands
– Aquaculture/Mariculture
– Agriculture
– Salt exploitation
– Urban/Industrial
– Water storage areas
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Types of WetlandsTypes of Wetlands
� Marshes
� Tidal, Nontidal, Wet Meadows, Prairie Potholes, Vernal Pools, Playa Lakes
� Swamps
� Forested Swamps, Bottomland Hardwoods, Shrub Swamps, Mangrove Swamp
� Bogs
� Northern Bogs, Pocosins
� Fens
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Types of Wetlands Types of Wetlands -- CaribbeanCaribbean
� Mangroves
� Lagoons, salt ponds, salinas
� Estuaries
� Tidal creeks
� Freshwater and brackish marshes
� Swamp forests
� Riverine forests
� Palm and pine barrens
� Coastal woodland
� Strand and dune woodlands
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Major wetlands in JamaicaMajor wetlands in Jamaica
� Great Morass St. Thomas
� Black River Morass St.Elizabeth
� Pear Tree Bottom St. Ann
� Palisadoes-Port Royal Kingston
� Great Salt Pond St. Catherine
� Salt River Swamp Clarendon
� Canoe Valley Manchester
� Cabarita Swamp Westmoreland
� Hague Swamp Trelawny
� Negril Swamp Westmoreland/Hanover
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Simplified Mangrove Swamp Food WebSimplified Mangrove Swamp Food Web
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Functions of WetlandsFunctions of Wetlands
� Water purification - sediment and toxicant removal
� Water storage
� Nutrient cycling
� Prevent saline intrusion
� Groundwater recharge and discharge
� Flow regulation/flood mitigation
� Shoreline protection, storm protection & erosion control
� Windbreak
� Critical habitats for plants and animals
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Benefits of WetlandsBenefits of Wetlands
� Water supply and transport
� Research and education
� Gene bank
� Recreation and tourism
� Timber and thatch production
� Energy resource
� Aesthetic
� Food resource
� Sediment trap and carbon sink
� Wastewater treatment
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Value of WetlandsValue of Wetlands
� A study conducted revealed that the dollar value of our natural ecosystems was approximately US$33T. The
estimated global value of wetland ecosystems was
US$14.9T, 45% of the total (Ramsar Convention Bureau).
� A mangrove fringed shoreline in the Gulf of Panama
yielded $95,000 per km from shrimp, other crustaceans
and fish.
� 40,000 ha of managed mangrove forest in Malaysia yielded $10M in timber and charcoal and $100M in fish
and prawns.
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Functions of mangrovesFunctions of mangroves
� Energy source
� Habitat (plants & animals/migratory, sedentary sps)
� Biological filters – sink for pollutants, carbon sinks,
carbon sequestration stores
� Water quality maintenance – sediment removal, nutrient
retention and transformation and oxygen addition
� Coastline protection – storm surges/hurricanes
� Offshore ecosystem protection – terrestrial influence
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Pictures Pictures –– Human uses of WetlandsHuman uses of Wetlands
Fishing, Venezuela Observation deck, USA
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Pictures Pictures –– Human uses of WetlandsHuman uses of Wetlands
Harvesting reeds for construction and other uses
Melaleuca harvesting in Vietnam
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Pictures Pictures –– Human uses of WetlandsHuman uses of Wetlands
WWF’s donated ‘Banana Boat’ used for research and eco-tourism, Zambia
Fish traps made out of reds, Turkey
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Pictures Pictures –– Threats to WetlandsThreats to Wetlands
Inundation by heavy rain and destruction of floodplain, Germany
Forest fire, USA
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Pictures Pictures –– Threats to WetlandsThreats to Wetlands
Coast of France Irrigation canals, Poland
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Pictures Pictures –– Threats to WetlandsThreats to Wetlands
Cleaning of a canal, Turkey Polluted pond, United Kingdom
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Great MorassGreat Morass
� Herbaceous swamp & mangrove forest
� Coastline protection (dissipates effects of trade winds &
hurricanes)
� Habitat function
� Food and wood source
� Water quality maintenance
� Impacted by charcoal burners
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Great MorassGreat Morass
� Flora
� red, black, white and button mangroves
� reeds, wild cane
� Fauna
� birds (9 endemic, 12 aquatic, 22 residents, 18 migrants)
� reptiles (crocodile, hawksbill & leatherback turtles)
� butterfly (endemic Jamaican Satyra)
� amphibians (frogs)
� aquatic (crabs, oyster, crayfish)
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Why conserve Wetlands?Why conserve Wetlands?
� ‘The maintenance of wetlands as functioning ecosystems will
often ensure that important contributions to development are
maintained’
� Jamaican wetlands were formerly much more
extensive as most were reclaimed in the 18th century
for sugar production.
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The Protection of WetlandsThe Protection of Wetlands
� Policies drafted:
� Policy for Jamaica’s System of Protected Areas, 1997
� Mangrove, Coastal and Wetland Policy, 1997
� Natural Resources Conservation Authority Act
(Permit and Licence Regulation), 1999
� The Convention on Wetlands of International
Importance (Ramsar Convention)
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The The RamsarRamsar ConventionConvention
� Inter-governmental treaty
� Provides framework for the conservation and wise
use of wetlands and their resources
� Provision of a suitable habitat for water birds
� Oldest global nature conservation treaty
� Started in 1971, came into force 1975
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Why do countries become Parties Why do countries become Parties
to the Convention?to the Convention?� To facilitate development at the national level of policies and
actions for the wise use of wetlands.
� Present an opportunity for a country to be heard in the principal intergovernmental forum on conservation and wise
use of wetlands.
� Brings increase publicity and prestige for wetlands.
� Encourages international cooperation on wetland issues and
bring the possibility of support.
� Brings access to expert advice on national and site-related
problems.
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Commitments of the parties to the Commitments of the parties to the
RamsarRamsar ConventionConvention
� Promotion of conservation (wise use of wetlands)
� Maintenance of the natural habitat
� Reserves and training
� International co-operation
� Promote research and exchange data and
publications on wetlands
� Enlist site(s)
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RamsarRamsar Criteria for Identifying Criteria for Identifying
Wetlands of International ImportanceWetlands of International Importance
Wetlands should be selected for the List of Wetlands of
International Importance on account of their international
significance in terms of ecology, botany, zoology,
limnology or hydrology and indicates that in the first
instance, wetlands of international importance to
waterfowl at any season should be included.
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CriteriaCriteria
Group A: Sites containing representative, rare or unique
wetland types
� Criteria for unique, rare or representative wetlands, which are natural or near-natural
Group B: Sites for conserving biological diversity - criteria
based on species and ecological communities
� Criteria for supporting vulnerable, endangered, or critically endangered species or threatened ecological communities;
populations of plant and/or animal species important for maintaining biological diversity; plant and/or animal species at a
critical stage in their life cycles, or provides refuge during adverse
conditions.
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CriteriaCriteria
Criteria specific to waterbirds
� Supports 20,000 or more waterbirds and 1% of the individuals in a
population of one species or subspecies of waterbird.
Criteria based on fish
� Supports a significant proportion of indigenous fish subspecies,species or families, life-history stages, species interactions and/or
populations that are representative of wetland benefits and/or values and thereby contributes to global biological diversity.
� Important source of food for fishes, spawning ground, nursery and/or migration path on which fish stocks, either within the
wetland or elsewhere, depend.
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CriteriaCriteria
Criteria specific to other taxa
� Supports 1% of the individuals in a population of one
species or subspecies of wetland-dependent non-avian
animal species.
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Why conserve Wetlands?Why conserve Wetlands?
� ‘The maintenance of wetlands as functioning ecosystems will
often ensure that important contributions to development are
maintained’
� Jamaican wetlands were formerly much more
extensive as most were reclaimed in the 18th century
for sugar production.
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This could be OURS!!This could be OURS!!