Quantitative Analysis of Drought Management Strategies across Ethnographically-Researched African Societies: A Pilot Study
Abstract
:1. Introduction
1.1. Drought in African Ethnography and Archaeology
1.2. Aim of the Present Study
2. Material and Methods
2.1. Data Search and Dataset Generation
- The Subsistence Type (ST).
- The environmental characteristics as expressed by the Aridity Index (AI).
- The Spatial distance between societies (Sp).
2.1.1. Variable 1: Subsistence Type (ST)
2.1.2. Variable 2: The Environmental Characteristics as Expressed by an Aridity Index (AI)
2.1.3. Variable 3. The Spatial Distance between Societies (Sp)
2.2. Data Analysis
3. Results
4. Discussion
4.1. General Scope and Limitations of the Current Study
4.2. Implication for Understanding the Present
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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a. Sub-Region | b. Culture | c. OWC | d. Subsistence Type | e. Samples | f. Text |
---|---|---|---|---|---|
Central Africa | Teda | MS22 | Agro-pastoralists | EA, SCCS | Section: THE HISTORY OF TIBESTI, Page: [p. 20-A]. Search Result: For the next three hundred years we hear almost nothing of the Teda. Dalloni believes that the “first conquering tribes”—by which he probably means the Tomaghera, Gunda, and Arna—arrived in Tibesti in the seventeenth or eighteenth century. Some of the events mentioned in the traditional clan histories belong to this period. The distribution of clans and dialects in regions south of Tibesti suggests that many Teda from the massif have recently migrated to the Jurab, Egei, the Bahr el Ghazal, and the Lake Chad area, for better pastures and for arable land. Presumably such migrations have taken place in times of drought and famine. |
Eastern Africa | Ganda | FK07 | Intensive Agriculturalists | EA, PSF, SCCS, SRS | Section: SUBSISTENCE AGRICULTURE IN BUGANDA, Page: 38. Search Result: It seems that famines were relatively frequent, and serious, even in wealthy, fertile Buganda. With very little provision made for the processing and storage of food, the Ganda were seriously short of food in a drought if annual crops failed and bananas became scarce. Rainfall, as has been suggested, while seemingly quite adequate when seen in terms of average years, varies greatly from year to year and from area to area. |
Code | Description | Example (#Entry, Society, Economy, Text, Reference) |
---|---|---|
SS | The society enables mechanisms of support to individuals or families (e.g., loans, gifts, hospitality), postpones social events (e.g., marriages, births) and prevents possible demographic growth | Entry #486: Turkana, Pastoralists. Just as there are traditional means of coping with the stresses associated with drought, there are traditional means of helping families recover from drought. These include a shift of dependents from poorer families to more wealthy families, begging or borrowing livestock from friends and relatives, exchanging large stock for small stock, and marrying eligible daughters. |
McCabe, J. Terrence. 1990 “Success and Failure: The Breakdown Of Traditional Drought Coping Institutions Among The Pastoral Turkana Of Kenya” in Journal Of Asian And African Studies 25 (s 3–4). Leiden: 146–60. http://ehrafworldcultures.yale.edu/document?id=fl17-045 accessed on 15 January 2019 | ||
SM | Changes in routes as well as increases or decreases in residential mobility to cope with altered resource distribution | Entry #25: Rwandans, Agro-Pastoralists […]. The Tutsi were not nomadic pastoralists. Cattle moved according to the seasons from valleys to hills, but usually in the same area. It might happen, however, that when the drought was particularly severe, herds had to be led to another area which might be some distance away. But this did not imply any change of residence for the owners of the cattle which were accompanied only by shepherds. |
Maquet, Jacques Jrme Pierre. 1961. Premise of Inequality in Ruanda: A Study of Political Relations In A Central African Kingdom. London: Oxford University Press for the International African Institute. http://ehrafworldcultures.yale.edu/document?id=fo57-006 accessed on 15 January 2019. | ||
MG | Migration to other areas when the original setting is no longer suitable | Entry #593: Dogon, Intensive Agriculturalists […]. On the plateau, and especially in the plains, the villages have become the centres of wide circles of desert, where the combined efforts of man and cattle have stripped the soil of its fragile vegetative cover. Migration has started towards the south of Mali, in Bambara country, and towards the Mossi area of Burkina Fasso. |
Van Beek, W. E. A. 1993. “Processes And Limitations of Dogon Agricultural Knowledge” in Anthropological Critique Of Development: The Growth Of Ignorance. London: Routledge. http://ehrafworldcultures.yale.edu/document?id=fa16-030 accessed on 15 January 2019 | ||
EM | Temporary abandonment of traditional activity and shift to another type of economic activity (e.g., wage labour) | Entry #344: Turkana, Pastoralists […]. As a result of the drought, the family was split. Nari, his wives, and a widowed sister remained active pastoralists. The remaining half of the extended family sought other forms of subsistence. |
Dyson-Hudson, Rada, and J. Terrence McCabe. 1985. “South Turkana Nomadism: Coping with an Unpredictably Varying Environment.” Hraflex Books, Ethnography Series. New Haven, Connecticut: Human Relations Area Files. http://ehrafworldcultures.yale.edu/document?id=fl17-003 accessed on 15 January 2019 | ||
CR | Performance of rituals to prevent the risk and mitigate the effects of drought | Entry #5: Azande, Horticulturalist […]. In times of drought, when there is danger that the crops may die from lack of moisture, or in times of serious pestilence, a ceremony takes place at the suggestion of ghost diviners (aboro atoro) who are instructed to initiate it by directions from Mbori or from the ghosts of the dead in dreams, in cultivations and at sources of streams. |
Evans-Pritchard, E. E. (Edward Evan. 1936. “Zande Theology” in Sudan Notes and Records. [s.n.]. http://ehrafworldcultures.yale.edu/document?id=fo07-005 accessed on 15 January 2019 | ||
RC | Shift to cultivation of drought resistant species, until drought persists | Entry #580 Bambara, Agro-Pastoralists. Since the 1973 drought, farmers in Kala have been shifting their resources out of long, and towards shorter, cycle crops that take only 60 to 80 days from sowing until ready to harvest, and groundnuts have lost their role as the main cash crop. |
Toulmin, Camilla. 1992. Cattle, Women, and Wells: Managing Household Survival in The Sahel. Oxford [England]: Clarendon Press?; Oxford University Press. http://ehrafworldcultures.yale.edu/document?id=fa08-010 accessed on 15 January 2019 | ||
DT | Changes in food and alimentary habits to face food shortage generated by drought | Entry #207: Nuer, Agro-Pastoralists. In famine years much greater attention is paid to the wild harvest. ‘Wild dates’ are then a great stand-by and people eat a wide range of fruits, ripening mainly in the early part of the drought, which they neglect when hunger is not severe, and make use of bush-yams and the seeds of wild sorghum and other grasses. |
Evans-Pritchard, E. E. (Edward Evan). 1940. Nuer: A Description of The Modes of Livelihood and Political Institutions of a Nilotic People. Oxford: At the Clarendon press. http://ehrafworldcultures.yale.edu/document?id=fj22-001 accessed on 15 January 2019 | ||
LM | Changes in livestock management | Entry #255: Somali, Pastoralists […]. As drought intensifies, however, the Reer shifts its strategy from one of hoarding to one of selective depletion. The deliberate slaughter and sale of livestock is one indication of this shift. |
Cassanelli, Lee V. 1982. Shaping of Somali Society: Reconstructing the History of a Pastoral People, 1600-1900. Ethnohistory. Philadelphia: University of Pennsylvania Press. http://ehrafworldcultures.yale.edu/document?id=mo04-033 accessed on 15 January 2019 | ||
CM | Changes in crop management (scheduling, programming) | Entry #512: Libyan Bedouin, Pastoralists […]. The farmer needs to know how much of the rainy season is left and, therefore, how much rain crops planted at a particular date are likely to receive before the summer drought sets in. |
Behnke, Roy H. 1980. Herders Of Cyrenaica: Ecology, Economy and Kinship Among the Bedouin Of Eastern Libya. Illinois Studies in Anthropology. Urbana: University of Illinois Press. http://ehrafworldcultures.yale.edu/document?id=mt09-014 accessed on 15 January 2019 | ||
BD | Building of water harvesting/collection facilities (e.g., dams, barrages, wells) | Entry #103: Konso, Intensive Agriculturalists […]. In order to cope with drought, and to conserve the heavy rain that falls so unevenly, many cisterns and cattle pools have been dug and in a few places huge reservoirs have been constructed, to contain the rainwater for cattle in the dry months. |
Hallpike, C. R. (Christopher Robert). 2008. Konso of Ethiopia: A Study of the Values of an East Cushitic People. Central Milton Keynes: AuthorHouse. http://ehrafworldcultures.yale.edu/document?id=mp17-004 accessed on 15 January 2019 |
Culture eHRAF | Subsistence Type eHRAF | Aridity Index (Mean) | Aridity Index (Variance) | Longitude (Centroids) | Latitude (Centroids) | Strategies |
---|---|---|---|---|---|---|
Akan | Horticulturalists | 0.8004 | 0.0362 | −2.2633 | 7.1662 | SM, CM |
Amhara | Intensive Agriculturalists | 0.5297 | 0.0423 | 38,4798 | 11,0738 | CR, RC |
Azande | Horticulturalists | 0.9566 | 0.0264 | 26.4763 | 4.607 | CR |
Bambara | Agro-pastoralists * | 0.3208 | 0.0162 | –6.9646 | 12.8719 | CR, RC, SS, LM, EM, CM |
Bemba | Horticulturalists | 0.5841 | 0.0077 | 29.1114 | –11.6733 | CR |
Bena | Horticulturalists | 0.883 | 0.0331 | 34.913 | –9.242 | CR |
Berbers of Morocco | Agro-pastoralists | 0.1558 | 0.0128 | –6.3471 | 31.8819 | SS, EM, CM, MG |
Chagga | Intensive Agriculturalists | 0.6448 | 0.1323 | 37.2273 | –3.2373 | CR |
Dogon | Intensive Agriculturalists | 0.1595 | 0.0023 | –3.1987 | 14.4936 | CR, SM, DT, SS, BL, CM, MG |
Ganda | Intensive Agriculturalists | 0.7268 | 0.0113 | 31.9222 | 0.6379 | CR, RC, DT |
Gikuyu | Intensive Agriculturalists | 0.6771 | 0.1058 | 36.9819 | –0.4119 | CR, SM, SS |
Hausa | Agro-pastoralists * | 0.2886 | 0.0142 | 7.0046 | 12.3422 | CR, SS, LM, CM, MG |
Igbo | Horticulturalists | 1.3348 | 0.0608 | 7.2916 | 6.0772 | CR, DT, SS, CM |
Ila | Horticulturalists | 0.3989 | 0.0007 | 26.409 | –15.387 | DT, SS, CM |
Konso | Intensive Agriculturalists | 0.3049 | 0.0048 | 37.3794 | 5.3599 | CR, SS, BL |
Libyan Bedouin | Pastoralists | 0.0186 | 0.0009 | 17.1782 | 28.1892 | SM, SS, BL, LM, CM |
Lozi | Agro-pastoralists * | 0.3589 | 0.0036 | 23.4021 | –16.0806 | SM, SS, BL, EM, CM |
Luo | Intensive Agriculturalists | 0.6539 | 0.0211 | 34.3659 | –0.4611 | CR, RC |
Maasai | Pastoralists | 0.4319 | 0.024 | 36.4179 | –2.9919 | CR, SM, DT, SS |
Mende | Horticulturalists | 1.6731 | 0.0111 | –11.5221 | 7.9944 | MG |
Mossi | Intensive Agriculturalists | 0.3547 | 0.0187 | –1.1199 | 12.7668 | CR |
Nuer | Agro-pastoralists | 0.3997 | 0.0014 | 31.7942 | 8.3143 | CR, SM, DT, SS |
Nyakyusa and Ngonde | Intensive Agriculturalists | 1.0673 | 0.02 | 33.6828 | –9.4388 | CR, DT |
Ovimbundu | Horticulturalists | 0.6231 | 0.0265 | 15.4132 | –12.7292 | CR, DT, MG |
Rwandans | Agro-pastoralists | 1.0359 | 0.1065 | 29.306 | –2.2449 | CR, SM |
Shilluk | Agro-pastoralists | 0.2862 | 0.0033 | 32.0036 | 10.461 | SS |
Shona | Agro-pastoralists * | 0.4029 | 0.0132 | 31.5266 | –18.7024 | CR, SM, DT, SS, LM, EM |
Somali | Pastoralists | 0.1322 | 0.0053 | 44.5681 | 5.7355 | CR, SM, SS, LM, EM, MG |
Tallensi | Intensive Agriculturalists | 0.4283 | 0.0002 | –1.6519 | 10.7669 | CR, DT, SS |
Teda | Agro-pastoralists | 0.014 | 0.0002 | 17.5601 | 18.7242 | CR, SM, EM |
Tonga | Horticulturalists | 0.356 | 0.0031 | 27.2591 | –16.5172 | CR, SM, DT, SS, LM, EM, CM, MG |
Tsonga | Agro-pastoralists * | 0.3657 | 0.0087 | 32.9101 | –23.2757 | DT, SS |
Tuareg | Agro-pastoralists | 0.0268 | 0.0008 | 6.3708 | 20.4567 | SM, DT, SS, LM, EM, CM, MG |
Turkana | Pastoralists | 0.1754 | 0.0061 | 35.5107 | 3.3158 | CR, SM, DT, SS, BL, LM, EM, MG |
Yoruba | Horticulturalists | 0.8469 | 0.061 | 4.1093 | 7.8462 | SS |
R2 | adj. R2 | p-Value | |
---|---|---|---|
Subsistence Type | 0.1520 | 0.0711 | 0.0113 |
Aridity Index | 0.1071 | 0.0525 | 0.0198 |
Spatial Component | 0.0593 | 0.0311 | 0.0344 |
Full Model | 0.2665 | 0.1118 | 0.0061 |
CR | SM | RC | DT | SS | BL | LM | EM | CM | MG | |
---|---|---|---|---|---|---|---|---|---|---|
Agro-pastoralists | 6 | 6 | 1 | 4 | 9 | 1 | 4 | 6 | 5 | 3 |
Horticulturalists | 6 | 2 | 0 | 4 | 4 | 0 | 1 | 1 | 4 | 3 |
Intensive Agriculturalists | 10 | 2 | 3 | 4 | 4 | 2 | 0 | 0 | 1 | 1 |
Pastoralists | 3 | 4 | 0 | 2 | 4 | 2 | 3 | 2 | 1 | 2 |
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Biagetti, S.; Zurro, D.; Alcaina-Mateos, J.; Bortolini, E.; Madella, M. Quantitative Analysis of Drought Management Strategies across Ethnographically-Researched African Societies: A Pilot Study. Land 2021, 10, 1062. https://doi.org/10.3390/land10101062
Biagetti S, Zurro D, Alcaina-Mateos J, Bortolini E, Madella M. Quantitative Analysis of Drought Management Strategies across Ethnographically-Researched African Societies: A Pilot Study. Land. 2021; 10(10):1062. https://doi.org/10.3390/land10101062
Chicago/Turabian StyleBiagetti, Stefano, Debora Zurro, Jonas Alcaina-Mateos, Eugenio Bortolini, and Marco Madella. 2021. "Quantitative Analysis of Drought Management Strategies across Ethnographically-Researched African Societies: A Pilot Study" Land 10, no. 10: 1062. https://doi.org/10.3390/land10101062