Page 33 - FWG Issue 11 December 2021
P. 33

Nature






















































          Many recall this when it was open forest, a parklike landscape of tall, stand-alone mopane trees. Did elephants reduce it to shrubbery, deliberately?

          reached so  far over  that  it snapped  off   mopane trees, another species favoured   programmed to turn open forests into
          near its base.                     by elephants. In those days the single-  easily browsed head-high fodder banks?
                                             stemmed 15 to 20m high standard    As one team of scientists put it: Have
          The tree’s wide crown blocked the route   mopanes with their tall green canopies   elephants gone into farming?
          to Skukuza. It was only then that we were   rose from the meadow-like landscape
          able to see the  elephant that  had killed   providing shade for creatures grazing   I  recall,  in  the  mid-1970s,  being  invited
          it. It was a male and, surprisingly, not a   beneath. The scene was park-like, the sort   as an observer, to join a team seeking a
          particularly big one. As it strolled on to   of open woodland that Pierneef liked to   strategy to defend South Africa‘s last ilala
          the road, a second male appeared and   paint.                         palm forest. These 15 to 20m high trees
          the two began picking at the branches in                              produce spherical shiny  hard nuts  (from
          what used to be the tree’s crown.  Grazers abounded. Elephants, being   which vegetable ivory is extracted) which
                                             major grazers, also have a huge appetite   elephants also enjoy. The forest stood just
          Did they extinguish this giant tree simply   for mopane leaves and will sometimes   before Letaba’s main gate.
          to nibble at its top branches? Surely   stand on their hind legs and stretch their
          not. One hears of elephants during   trunks to six or seven metres high to   The scientists hardly slept a wink on
          droughts knocking over trees to get at   browse among the branches.   their first night because of the sound of
          their succulent roots but to habitually kill                          palms crashing down. Next morning they
          large trees for a few minutes’ gratification   Those hundreds of square kilometres   stood shaking their heads: the country’s
          makes no ecological sense.         of this one time  ‘parkland’ have, partly,   last palm forest had been demolished by
                                             thanks to elephants but also because of   elephants.
          Yet, according to one authority, elephants   unplanned veld burning, been converted
          in Kruger Park have, since the 1960s, killed   into an almost unbroken sea of hedge-  I was told many years ago, when ethology
          off 95% of the park’s big trees.   high mopane scrub. Elephants no longer   (animal behaviour) was in its infancy and
                                             need to stretch high up to browse.  entailed a lot of surmise,  that elephants,
          I recall, in the 60s, north of Satara,                                as a kind of instinctive ‘civic duty’, often
          seeing kilometre after kilometre of tall   Are elephants, perhaps, genetically   push    trees  into  dongas  thus  checking

                                                 Fourways Gardens • 31 • December 2021
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