habitat
Hookworms
can be found all throughout the world, but most commonly in
areas where there is a constant moist warm climate. They reside
in Asia, Africa, and are the only human infecting hookworms to
reside in North Africa, the Middle East, and Southern Europe.
Hookworm eggs absorb their nutrients via absorption from the host
feces, therefore they must be in soils of neutral pH. They also
must be in a shady area, like under a tree or bush, because the
feces must remain moist enough for the egg to fully develop.
This is also important because the eggs are extremely sensitive
to sunlight. Also, The eggs metabolism is aerobic, therefore it also
must be in an area of good oxygen supply. The importance of a
soil of neutral pH is not just for the egg. juvenile hookworms
are also sensitive to high salt concentrations and acidic soil.
The adult life of a hookworm is spent in a completely
different habitat, the human body. At the juvenile stage, the
hookworm enters is new host and works its way via the
circulation system and lungs, to the intestines. Here the
hookworms feeds and reproduces and spends the rest of its life.