The dynamics of livestock systems in sub-Saharan West Africa on the 2040 horizon will be determined more by current and expected societal changes than by climate change. Climate change is expected to result in increases in the concentration of carbon dioxide in the air, in temperatures in the warmer seasons, and in rainfall mainly due to more frequent and intense heavy storms. These increases are expected to favour crop production, but also runoff, soil erosion and flooding. The rapid and persistent increase in rural population density despite dramatic urbanisation is expected to fuel further expansion of cultivated lands and the reduction and fragmentation of rangelands, hampering pastoral mobility. This is likely to reduce the activity of seasonally mobile pastoral livestock farming, but also that of sedentary livestock farming deprived of rangelands and a source of competitively priced young animals. A policy that would advocate the end of seasonal regional transhumance in favour of ranching and stabling, would precipitate the decline of pastoral livestock and increase their fragility in the face of climatic and security risks. This change would require an investment that is beyond the reach of livestock breeders, who would be reduced to working for private investors or agro-industrial companies. The only policy that could sustainably support livestock systems in their diversity and complementarity would be resolute public investment by States and Regional Economic Communities (RECs) in the transformation and modernisation of pastoral mobility. Access to pastoral resources and regional and local herd mobility should be secured by reaffirming the community or public status of water points and rangelands in hyper-arid zones, but also of non-cultivable land in wetter zones, as well as negotiated access rights to cultivated land after harvest. Frameworks for local and regional consultation should be established, and contractual agreements between pastoralists, agro-pastoralists and farmers should be facilitated. It is necessary to complete, rehabilitate and manage the hydraulic and veterinary infrastructures, the livestock passage corridors, the land reserved for grazing, the lodgings or enclosures for the livestock, with a view to creating a network of infrastructures adapted to the available forage resources, established in consultation with the livestock breeders' associations and the local authorities. A national and international commitment should overcome the civil insecurity that is rampant in many pastoral regions, along with significant investments in education, health, roads and telecommunications infrastructure that would ensure security and the adaptation of pastoral livestock farming to societal changes.

PEPISAO aims to strengthen the capacities of States and regional and national actors so that they can develop approaches to secure livestock mobility and integrate livestock farming methods in line with a shared regional vision and offering maximum guarantees for the peaceful cohabitation of different users of natural resources. In order to achieve this ambition, the ECOWAS Commission, in collaboration with UEMOA and CILSS, has initiated a prospective reflection on mobile livestock systems. Such an exercise reflects an anticipatory approach based on the analysis of relevant factors of change for the future of livestock systems. The present note, which is part of this exercise, aims to characterise the socio-political dynamics at work in the region, in relation to mobile livestock systems. The link between anticipation and strategic planning is tenuous. Moreover, the challenge of exploring the likely future of transhumance and consequently the future of millions of people - development actors in their own right of territories for which they are overlooked - is of crucial importance for regional integration and stability of the region and for peaceful cohabitation between socio-cultural groups. Studies, regional programmes and high-level meetings have multiplied in recent years, reflecting both the acuteness of the issue for the various actors and the complexity of the process of constructing political and social arrangements at the relevant levels of decision-making and action in the areas concerned by these problems.

Livestock is a strategic sector in West Africa and the Sahel, both in terms of the size of its livestock population and production, as well as in terms of the importance in the livelihoods and food security of millions of households. Historically, ruminant husbandry systems are characteristic of the economies and management of the vast arid Sahelian spaces and they form a central element of the culture of the families of pastoralists, sedentary livestock breeders and sedentary agro-livestock breeders. But livestock farming is above all an illustration of the potential offered by the valorisation of the region's agro-ecological complementarities, which makes it the first vector for the integration of economies and territories through a system of complex exchanges. This system, which makes it possible to cope with the variability of natural resources, organizes synergies between agricultural production systems and livestock systems, is a vector of links and dialogue between communities. Finally, it helps to supply the animal protein deficit markets of the coastal countries.