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NATURE




             The survey was hailed as probably the most
             comprehensive national survey, worldwide.
             Its contents indicated that South Africa can
             hold its head up when it comes to e ective
             wildlife management.

             The 10 critically endangered species include
             one of our three sub-species of the black
             rhinoceros. The black rhino population as a
             whole is holding steady in South Africa. At last
             count they probably numbered 700, of which
             230 were in Kruger Park and 463 in Zululand
             (Hluhluwe/Umfolozi and Mkuzi).

             The ‘Red List’ of the IUCN (International Union
             for the Conservation of Nature) deemed the
             black rhino to be  ‘critically endangered’ in
             its global context.  But the EWT’s  Red Data
             Book showed it is, in fact, increasing in this
             country and in our national context can  be
             rated as ‘vulnerable’ - two categories more
             optimistic than ‘CE’.

             Fifty years ago, the white rhinoceros would
             have been deemed  ‘critically endangered’,
             just like the black. Only a few score were left,
             nearly all of them in Zululand. Zululand’s
             e orts in the mid-century  to  protect the                                 Forest-dwelling samango – now 'endangered'
             white rhino brought numbers up into the
             thousands. The campaign, probably the most   mountain zebra, one of two sub-species of   Africa there are fewer than 2 500 of which
             successful conservation (preservation!) e ort   Samango monkey, the blue whale, Southern   about 2 000 are shared by Kruger Park and
             in the world at the time, enabled South Africa   elephant seal, a migratory sub-population of   its abutting reserves. Because the Chinese
             to repopulate areas in Africa where the rhino   the Indian Ocean bottle-nosed dolphin, eight   believe the lion’s powdered bones have
             had been extinguished. And that included in   rodents and two bats.     medicinal powers, lions are being poached at
             Kruger Park where not one rhino – black or                              a steady rate in southern Africa.
             white – existed in 1950. The Kruger Park is   The 29 species declared  ‘VU’ (vulnerable)
             now Africa’s biggest repository of rhinos.   include the black rhino (embracing all   And on the ‘EX’ list?
                                                 three sub-species), lion, cheetah, blue   The report listed four mammals: Quagga
             Alas, most of those redistributed north of   duiker, bontebok, suni, roan, sable, Cape   (extinguished between 1875 and 1883); blue
             us have now been poached by well-armed   mountain zebra, sperm whale, Bryde’s whale,   antelope (belonging to the sable family –
             gangs sponsored by Far Eastern crime   humpback dolphin, bottle-nosed dolphin (as   extinguished 1799 - 1800); Cape warthog
             syndicates.  This is why Kruger Park and   a species regardless of the sub-population   (around 1900) and Burchell’s zebra (extinction
             the KwaZulu wildlife authorities no longer   that appears on the ‘EN’ list), pangolin,  two   date unknown).  The common zebra (now
             divulge their rhino population  gures. They   di erent sub-populations of Samango,  tree   called ‘plains zebra’) is plentiful.
             fear the poaching gangs will step up their   hyrax (tree dassie), four moles, six bats, one
             activities in South Africa.         shrew and the giant rat.            Surprisingly, the Cape lion has not been
                                                                                     featured on the ‘EX’ list – it was a sub-species
             The riverine rabbit, found only in South   The inclusion of the lion as  ‘vulnerable’   last seen near Colesberg in 1836.   BV
             Africa, is deemed ‘CR’ – critically endangered.   might surprise many.  In the wild in South
             Its category implies it is “50 percent likely to
             become extinct within 100 years”. Although
             land management has greatly improved, the
             rabbit’s population continues to decline.

             The other seven ‘CR‘ mammals involve  ve
             species of moles, two bats and the Ongoye
             red squirrel. The potential loss of such species
             might not excite public interest, but their
             loss should concern us because any loss of
             a species reduces biodiversity and therefore
             threatens the whole.

             South Africa has not, as far as is known, had
             a species extinction for well over a century. It
             is possible that some smaller species might
             have been extinguished before they were
             even discovered. Look at the various kinds of
             shrews, some the size of beetles.

             Among the 18 species classi ed as being
             on the brink of ‘EN’ - endangered - one third
             are unique to South  Africa.  Those are the
             African wild dog, oribi, tsessebe, Hartmann’s


                                                                                         BLUE VALLEY NEWS  •  Issue 3 2020  •  21
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