Title: Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum
Identifier: annalsofsouth66197475sout (find matches)
Year: 1898 (1890s)
Authors: South African Museum
Subjects: Natural history
Publisher: Cape Town : The Museum
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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134 ANNALS OF THE SOUTH AFRICAN MUSEUM
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19 21 23 25 27 29 31 33 Map 8. Suggested forest country during a pluvial period. able to support forest—there is, of course, riverine ('gallery') forest there today. This forest would not reach as far east as the Victoria Falls; and as its postulated existence depends on the assumption that the increased effectiveness of the rainfall would be the same there as in the south, the suggestion is decidedly speculative. The big coastal block referred to above is mapped by Cooke (1962) as 'Tropical forest-savanna mosaic' and he extends it up into coastal Mozambique as far as Beira. I did not carry my own investigations into Mozambique but the rainfall map of the South African Weather Bureau supports Cooke's idea that the conditions along the coast there would be much the same as in Natal and Zululand and this has been adopted in my map. The southern (Knysna) forest block of my map is shown by Cooke as 'Subtropical mixed woodland', which seems to me unlikely. My map suggests that the temperate (montane) forest and the tropical low- land forest would merge along the Pongola River about latitude 27 S., which is some 4-5° further north than they do today. In East Africa, including Rhodesia, a faunal change in continuous forest cover occurs rather abruptly at an altitude which naturally varies according to the latitude; but this change does not coincide with any change in the botanical nature of the forest. Further south, where lowland and montane forest are separated by drier areas, the avifaunas of the two differ somewhat but chiefly at the subspecifk level. Further south still, the two forest types merge into a temperate lowland forest and the avifauna

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