The Pulse Model

Genesis and Accommodation of Specialization in the Middle Niger

Bibliographic Data

ID8980583
AuthorsRoderick J Mcintosh (Rice University, corresponding author)
Year1993
Volume34
Issue2
Pages181-220
Publication date1993-07-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueThe Journal of African History (JOURNAL)
Journal identifiersISSN: 0021-8537 • E-ISSN: 1469-5138
PublisherCambridge University Press (CUP) (PUBLISHER)
DOI10.1017/s0021853700033326
OpenAlexW2145918026
LanguageEN
Citations received35
References cited68

By the mid-first millennium a.d. , Middle Niger cities took the form of many separate mounds clustered together. Many of these mounds may have been settlements of specialists. This distinctive city form may have had its origin in segmented, but articulated, Late Stone Age communities in the southern Sahara. The Pulse Model is an attempt to reconstruct the circumstances of environmental change and interactions among these communities that encouraged occupational specialization. The model predicts the best locations to search for evidence of early specialization, namely the several north–south trending palaeochannels of the southern Sahara. There, groups increasingly concerned with intensification of production within separate microenvironments would nevertheless have been in close contact. Climate shifts over the past several millennia create a ‘pulse’ of population movements, or shifts of ecological adaptations, along these long corridors. However, adaptation to climate change and stress incompletely explains the emergence of specialization. Tradition, myths, legends and material reinforcements of divisions between present-day ethnic and artisan groups in the Middle Niger suggest the ways in which corporate identity may have been constructed and maintained in the very distant past. If corporate identity can emerge in a form that discourages conflict between groups, the result might be increasingly specialized responses to climate change and to the economic and social opportunities of early urbanism. There should be no sharp discontinuity between the emerging specialization of the last millennia b.c. and the earlier clustered urbanism of cities such as Jenne-jeno. Middle Niger urbanism is an intensification of prehistoric social dynamics, not a revolutionary process

Archaeology · Economic geography · Ethnology · Geography · Human settlement · Population · Sociology · Urbanism · African Studies and Geopolitics · Archaeology and ancient environmental studies · Architecture · Demography · History · Pleistocene-Era Hominins and Archaeology

Tools

Open DOISci-Hub