Ecological Functions

photo credit: Dept. of the
Environment, Bogotá
Inland freshwater marshers are
hilghly productive ecosystems, because their pH is
generally
circumneutral and nutrients derived from runoff are plentiful.
There is
a strong relationship between above ground biomass and summer
temperatures, so tropical marshes are the most productive.
La Conejera's primary
productivity was around 1000 g/m2/y at one point, but it is
probably less now due mainly to urban
development
Because of its absorption
properties, La Conejera acts as a giant sponge that retains excess
runoff during the rainy season, saving it for the dry season, thereby
making rivers and brooks in its watershed less "flashy" and preventing
floods. It also provides vast amounts of water to the Bogotá
aquifer, regulating the water table and contributing to the creation of
natural springs.
La
Conejera also serves as a natural filtration system, because lacustrine
plants native to the marsh retain sediments and heavy metals, reducing
water contamination.
Furthermore, La
conejera is a plant and wildife refuge
for many species,
endemic, native, and exotic.
The current environmental
degradation of all wetlands in the Bogotá savannah are a
consequence of the collective ignorance of the ecological functions of
this ecosystem, apparent in its marginalization during the oftentimes
poor and unorganized land use city planning processes. Endpoint of
untreated residual domestic waters, illegal landfills, filling/drying
of marshy soils to create room for more umplanned housing developments,
and wildlife hunting are some examples of erroneous uses locals have
given to this precious wetland.