With the help of almost 300 volunteers, 10,000 mangroves were
recently planted in Donsol in the Philippines. Mangroves are vital for
Donsol's wildlife - providing homes for fireflies, indicators of healthy
ecosystems, and fuelling the growth of plankton, which in turn attract
whale sharks.
‘Whale sharks congregate in Donsol because of
all the plankton,' explains WWF-Philippines Project manager Raul Burce.
‘Plankton consume nutrients discharged by Donsol's still-healthy rivers,
one of the few habitats where fireflies still thrive. Remove mangroves
and the fireflies shall be driven off.
If whale sharks disappear it could be catastrophic'Without
the healthy rivers needed by fireflies, plankton populations cannot
bloom - and the whale sharks will migrate elsewhere. If one component
crashes, the others follow suit. This could be catastrophic for the
people of Donsol.'
Wildlife tourism has transformed Donsol - a
total of 24,191 local and foreign visitors swam with the gentle giants
from December 2010 to June 2011. Donsol's Municipal Tourism Office
estimated that the 2010 season alone generated over $2.3million from
transportation, food, lodging, registration fees plus whale shark,
mangrove and firefly tours.
Mangroves generate 500kg seafood per hectare each yearNow
the World Wide Fund for Nature (WWF-Philippines) has spearheaded a
vigorous reforestation drive to plant 10,000 mangrove seedlings in
Donsol's Barangay Sibago last month.
Known
in Tagalog as bakawan, mangroves constitute one of the most productive
of marine habitats - able to generate 500kg of seafood per hectare
annually.
They
absorb significant amounts of carbon dioxide- the major culprit for
climate change. The thick onshore hedges protect coastal communities
from violent gale winds and waves caused by typhoons. Labyrinthine roots
shelter fish and invertebrates while stabilising sediments and
absorbing heavy trace metals to minimize coastal erosion and prevent
inland salt-water contamination. Even fallen leaves are used by some
animals for food and shelter.
Nearly three-quarters of original mangroves have been destroyedAs
well as threatening the tourist industry, loss of mangrove forests
expose coastal communities to increased flooding, faster beach erosion,
saline intrusion and severe damage from intensifying storms.
Up
to 75 per cent of the original cover has been lost as a result of
programmes to develop seemingly-idle mangrove forests into fish and
shrimp ponds for profit. Mangrove planting drives have been attempting
to remedy this.
WWF-Philippines vice-chairman and chief exectuive
Jose Ma. Lorenzo Tan said: ‘The key here is balance. Without it, the
productivity of our natural systems will crash. Strike a balance between
conservation and development and we can ensure sustainability.'
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