Tropical West Southern Africa (6,093 – …
Years: 6093BCE - 4366BCE
Tropical West Southern Africa (6,093 – 4,366 BCE) Middle Holocene — Dry Pulses, Forager Mastery, and Long-Distance Links
Geographic and Environmental Context:
Tropical West Southern Africa includes the far-northern zones of Botswana and Namibia, including the Okavango Delta, the Zambezi–Chobe–Caprivi Strip wetlands, the Etosha Pan basin and surrounding thornveld, and the Namib’s Skeleton Coast fringe.
Anchors: Okavango Delta (Boro–Thamalakane–Khwai distributaries), Zambezi–Chobe–Cuando/ Kwando–Linyanti–Caprivi channels and floodplains, Etosha Pan (Oshigambo–Oshivelo margins, Ekuma–Omuramba inlets), Owambo/ Cuvelai seasonal rivers, and the Skeleton Coast (surf-battered gravel plains, fog-fed lichen fields, seal rookeries).
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Interior dry pulses shortened flood durations; Okavango still reliable; Etosha often dry but spring-fed; Caprivi wetlands remained a backbone.
Climate & Environmental Shifts
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Warm/ wet baseline, punctuated by several multi-year dry phases; fogs persist along Skeleton Coast.
Subsistence & Settlement
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Foragers tightened scheduling: front-load fish/ water-lily harvest in peak floods; shift to nuts/ bulbs/ small game when waters withdrew;
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Etosha: spring-edge scheduling critical;
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Caprivi: high-levee bases used as redistribution nodes.
Technology & Material Culture
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Microlithic kit remained; fish baskets refined; poison arrows (beetle toxins) normalized; OES beads in large quantities—regional exchange tokens.
Movement & Interaction Corridors
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Zambezi–Chobe–Cuando linked westward into Angola, eastward toward upper Zambezi; bead trails trace inter-group exchange.
Cultural & Symbolic Expressions
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Engraved boulders and pecked geometric panels at pan edges; trance motifs proliferated; kinship feasts structured alliances.
Environmental Adaptation & Resilience
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Portfolio livelihood + mobile alliances spread climate risk across floodplain networks.
Transition
By 4,366 BCE, Tropical West Southern Africa’s foragers had a mature exchange society keyed to flood dynamics.
