Figure 9: Roan Distribution in Namibia
The original range for the species as described by Shortridge
(1934) falls entirely above the 400mm rainfall isohyet (Figure
9). Hahn (1925) records roan as far east as 14oE along
the Cunene River in Ovamboland although noting that these
were temporary movements during the rains.
Gaerdes (1963) has examined early records of roan and gives
none outside the range mapped by Shortridge. Joubert and Mostert
(1975) note that the range for roan had decreased considerably
since Shortridge's work.
In the early part of the 20th century sable antelope were
only found in the Caprivi (Shortridge 1934). It is not mentioned
by Hahn (1925) as occurring in Ovamboland. Joubert and Mostert
(1975, page 21) refer to sable in their list of "unrecorded
mammals" and regard the odd sightings of the species in Caprivi
as temporary excursions of Botswana animals.
Figure 11: Tsessebe Distribution in Namibia
Tsessebe did not occur below the 500mm rainfall isohyet (Shortridge
11). Shortridge notes that the species was occasionally
seen in what is now the extreme northerly end of Khaudum Game
Reserve and, as recently as the mid-1980s, they were recorded
during aerial surveys of this area.
In the Caprivi, tsessebe were relatively abundant in the
early part of the twentieth century. Gaerdes (1969) does not
mention the species outside of the Caprivi and it is not mentioned
by Hahn (1925) as occurring in Ovamboland.