. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A CHECK LIST OF LAND AND FRESH WATER BIRDS OF WESTERN CAPE 15. Map 4. The Arid Karoo. Borders of Arid Karoo: Author's Routes: Winter Rainfall Area Although given the meteorologically-derived title of Winter Rainfall area, it should be noted that the area so delimited on the map (map i) more closely coincides with the botanical division of sclerophyll or macchia (which needs a minimum of 10-15 of rain per annum—Wicht, 1945—or 250 mm.— Levyns, 1964) than with the limits of the area receiving 60% or mor
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A CHECK LIST OF LAND AND FRESH WATER BIRDS OF WESTERN CAPE 15. Map 4. The Arid Karoo. Borders of Arid Karoo: Author's Routes: Winter Rainfall Area Although given the meteorologically-derived title of Winter Rainfall area, it should be noted that the area so delimited on the map (map i) more closely coincides with the botanical division of sclerophyll or macchia (which needs a minimum of 10-15 of rain per annum—Wicht, 1945—or 250 mm.— Levyns, 1964) than with the limits of the area receiving 60% or more of its rainfall in winter; for the latter includes Namaqualand and all Ceres and Vanrhynsdorp and excludes the coastal districts from Robertson and Swellen- dam east, which receive rain at all seasons. As compared with the map in my original classification (Winterbottom, 1960^:), the chief difference is that I have now excluded the whole of Acocks' Strandveld of the west coast from the Winter Rainfall area, analysis of its avifauna having shown that, although transitional, its affinities lie more with the Karoo. As I have previously pointed out (Winterbottom, 1960c), the avifauna of the Winter Rainfall area is chiefly derived from the Karoo, with a small admixture of eastern forms and a still smaller one of species evolved in situ ( Promerops cafer, Bradypterus victorini, Serinus leucopterus, JVectarinia violacea) — I estimate a total of 6 species and 20 subspecies as being essentially Winter Rainfall forms. Further subdivision of the Winter Rainfall area is complicated by differences of opinion among the botanists. Thus Pole-Evans (1936) does not. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
