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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