She digs vigorously, following ant tunnels
deep into the sandy soil. Soon her hole is more than three feet (1 m) deep
and wide enough to sit in. “You can dig for honey ants any time of the year,
but winter is best because in summer you get too hot,” she calls out from the
hole. We watch as she studies the exposed tunnels with a trained eye. “You need
to know which one to follow,” she explains.
Yuminiya soon finds the nest. Inside are at
least 20 honey ants whose swollen abdomens, as large as grapes, are filled with
amber liquid. The little insects hang from the earthen ceiling, unable to move
because of their bloated state. Within minutes, Yuminiya collects over a
hundred ants from several chambers. “The honey of these ants is one of our
sweetest bush foods,” she says.
Living Honey Pots
Honey ants are one of the most unusual of the
more than 10,000 known ant species. Unlike bees, which store honey in
honeycombs, honey ants store nectar inside the living bodies of worker ants
called repletes. The ant colony draws upon these living “honey pots” during
lean times.
To deposit or withdraw food, an ant will use
its antennas to tap the right code on the antennas of a replete. The replete
then opens its mouth to unlock the “honey pot.” A special stomach valve, composed
of four flaps, controls the flow in or out. Over a lifetime of several months,
a replete can apparently be drained and refilled several times.
Repletes normally live a sedentary but safe
existence underground, where they are protected from drought, heat, and insect
predators. In this dark subterranean world, they guard against bacteria and
fungi by smearing their bodies with antibiotic fluid from a special gland.
Where does the “honey” come from? The food
chain, as it were, begins with the sap and nectar of acacia trees. Next, tiny
insects called aphids feed on these natural juices. Worker ants then milk the
aphids of some of their excess sugar, which is called honeydew, or they collect
nectar directly from the trees. Finally, the workers feed this collected liquid
to the repletes. Of course, since the inactive repletes have modest nutritional
needs, most of the honeydew ends up in the “honey bank”!
But what about the aphids? Are they the
losers here? Not at all. For one thing, the ants leave them adequate nectar.
For another, the ants protect the aphids from parasites and predators. Yes,
both ants and aphids are winners in this symbiotic partnership called
mutualism.
“Go to the ant,” says the Bible, “see its
ways and become wise. Although it has no commander, officer or ruler, it
prepares its food even in the summer; it has gathered its food supplies even in
the harvest.” (Proverbs 6:6-8) How true these words, for ants are indeed
cooperative, highly organized, and industrious! And how amazing that these
hardy desert dwellers manage to produce such a sweet delicacy in such
inhospitable surroundings!
For more informative articles see AWAKE magazine at www.jw.org
No comments:
Post a Comment