
06th
March 2010
Communicating
the Wetland Message

Wetlands are
among the most dynamic of eco systems on earth
and are critical components of the water cycle
that delivers our freshwater. These streams,
rivers, mangroves and lakes play a vital role
in the water cycle by capturing and holding
rainfall, recharging aquifers, retaining sediment
and purifying water. Yet we have drained, dammed,
and polluted vast numbers of our wetlands in
the very recent past ( fifty years) , thus diminishing
the capacity of these eco systems to provide
clean water, to satisfy needs of a population
that has more than doubled in that time. In
1988, St. Lucia’s wetland ecosystems stood
at approximately 791 acres. That area has depleted
to less than 400 acres, a number which threatens
to further decrease unless attitudes change
drastically. These attitudes have led to some
wetlands disappearing altogether, while what
we have left is under considerable stress. The
myth that wetland areas are wastelands waiting
to be converted into productive use, needs to
be dispelled immediately, as the survival of
a multiplicity of aquatic eco systems are at
stake. Apart from naturally occurring wetlands
there are man-made ones for the purposes of
wildlife sanctuaries, or other functions such
as cattle watering ponds, reservoir dams and
sewage treatment ponds. These are important
types of wetlands that should be included in
and considered with the island’s wetland
systems. In light of current stresses on the
availability of freshwater and continued destruction
to our wetlands, we focus on the Ma Kote mangrove
in the south of the island. A site which holds
tremendous significance to the ability of this
country to adequately supply itself with clean
fresh water. While it is difficult to quantify
to any degree the exact contribution of any
wetland to the water cycle, it is appropriate
to suppose that this mangrove contributes in
large measure to precipitation, emitting from
the estuary where the Vieux-Fort River empties
into at the Atlantic Ocean. The numerous internal
ponds hidden by a once dense forest of White,
Red, Black and Buttonwood mangrove species also
permitted enough transpiration and eventual
recharging of the aquifer to allow regulars
to enjoy the occasional swim.
However, reports of what currently obtains within
the mangrove are alarming. On its journey from
the mountaintop, water intended for this natural
reservoir is extracted for commercial consumption,
polluted, diverted, held up in manmade reservoirs,
fished and used domestically with extreme irresponsibility.
Currently, reckless overexploitation for charcoal
production to satisfy a seemingly insatiable
appetite for more and more money, has not only
thinned the forest, thereby reducing the amount
of transpiration and precipitation occurring,
but has and continues to destroy the habitat
for numerous species. With the reduction of
ground cover came the inevitable reduction and
in some instances drying of the water table;
threatening the nursery of aquatic life existing
in and around its mud-caked roots.
Invasive species trekked in by unscrupulous
vehicle owners sneaking in to dump trash, (which
they have been paid to dump illegally) invade
daily; stifling the splendor of a once flourishing
paradise. If its quality is to be safeguarded,
the needs of these conflicting uses must be
reconciled. |