I understand anthropology of weather as a specific body of understandings and abilities apprehended by imaginative knowledge inserted in particular forms of culture. I will analyze in this paper how Ticuna interpret the influence of weather climate changes on seasonality. This indigenous group’s daily life along the Amazonas-Solimões tributary igarapés (or headwaters) revolves around their calendar of subsistence activities on which depends the reproduction of Ticuna society. In its morphology, mythic enunciation in songs and ritual discourse prescribe a socially-defined order that is justified within an ideological framework in which ethnicity is a vehicle of Ticuna expression in both national and international languages that cross over indigenous boundaries of civilization. Anthropology of Ticuna knowledge depends on analyzing ideological systems of how they understand the relations between sky-earth and social relations. The Ticuna believe that the celebration will bring success in subsistence activities such as hunting, agriculture and fishing. There is an intrinsic relation between these ritual activities and the Ticuna’s representations of the environment in which they live. According to anthropological analysis, ritual is a social-action system that articulates cosmic order and social organization.

According to the explanations found in the headwaters or igarapés, the influence of weather climate changes on seasonality upon Ticuna subsistence strategies is more marked along the Solimões river(upper Amazon river in Brazil), given than in the headwaters of the igarapés plenty of plants and fruits are available all year long. The same occurs with fishing in environmental sanctuaries, where residents are able to supply themselves abundantly with fish all year long. On the Solimões, however, when the water level of the river rises, a certain degree of flexibility exists in the adaptation of the agricultural and extractive calendar to the rainy season when fishing and hunting are not productive and during the dry season when there is greater abundance, but the difficulties involved in navigation and transport grow as the water level along the igarapés linking the rivers drops. Traditional culture is not prepared, however, for unforeseen alterations in the rainy season, as has been the case at least in the last twenty years.