Climate variability and indigenous adaptation strategies by Somali pastoralists in Ethiopia

Pastoralism is a livelihood system for millions of people around the world and a great majority of them are found in Africa. The indigenous knowledge and strategies on pastoralism are not well understood and properly documented. Hence, this study sheds light on location-specific indigenous climate change adaptation strategies and explores the pastoralist and agro-pastoralist households' perceptions against the meteorological records. Data were collected from 191 sample households, 12 key informants, 32 focus group participants, and National Meteorological Services. The results reveal that there is a high climate variability (CV = 30), high rainfall intensity, and longer dry periods. Almost every year the Rainfall seasonality index (SI) value predicts a longer dry season. The community's perception matched with recorded climate data of the past 36 years and identified 10 major climate extremes orally recounted in history. Indigenous strategies include indigenous weather forecasts, mating calendar, destocking, herd mobility, herd diversification, traditional rotational grazing system ('Seri'), and also emerging adaptation strategies (farming, petty trade, handcraft, charcoal sale, and casual labor) utilized as a result of the severity of climate variability and extremes in the region. The results indicate that emerging adaptation strategies are replacing the preexisting pastoralist livelihood system and that indigenous strategies need support to withstand the current and predicted weather and climate variability in the sites. Pastoralists and agro-pastoralists will be in a better position to adapt to the consequences of climate variability and extremes if indigenous institutions are revitalized with innovations.