Wednesday 11 March Monica Gruezmacher successfully defended her PhD thesis “Understanding social ecological change through palm use and management“.


As people change their livelihood preferences, they change the way they relate to the natural resources around them. Anticipating and managing these changes, where possible, is a major challenge for sustainable land-use planning and natural resource management. This is most evident in the Amazon, a region of immense biological and cultural diversity but also a region of rapid change and transformation, quickly integrating through transportation infrastructure (roads, harbors, airports, etc.) with other South American regions and the rest of the world. In her PhD thesis Monica Gruezmacher analyzes social and ecological change taking place in indigenous settlements of the Amazon region, as they transform their subsistence economies to fit into a western model of living. She uses social ecological systems as a framework to identify and explore the linkages between changes in these two domains, and aims at understanding natural resource management from the perspective of the user and the utilized resource. This requires an understanding of collective decision making (governance) of the variations in land and resource use in a community governed in a specific way, and of the response of forests to small-scale human intervention. The way decisions are taken and the way a group of people structure their governance system will affect the ecological system in different ways. Her thesis elaborates on the fast transformation and diversification of formerly indigenous communities and fast-track integration into western systems of organization resulting in hybrid governance systems with different combinations of traditional and western ways of social organization and resource management.

Changes in the management of three utilized palm species served as indicators of change in the social ecological system. Palms are not sown from seed or transplanted into cultivation areas rather they are passively cultivated (protected from fire, weeds, pests, falling branches, etc.). Changes in palm management betrayed a general shift from a view of cultivation areas as the community’s pantry to a view of cultivation areas as the sum of individually owned plots where only commercially valued species are harvested. The distinction between the three zones was blurred in the community with greater access to the west, there was a pressure towards privatization, to erase the traditional zoning regulations, since both palms and land are seen as a commodity. Indiscriminate extraction is taking place in forested areas and in cultivation areas pressure and conflicts are increasing and leading to formalization of property rights and new forms of representation, thus pushing integration further. Transportation infrastructure will continue its expansion, the pressure for oil and mineral extraction will increase in the Amazon and it will be necessary to accept and understand these paths of change in order to minimize the negative consequences that they might have for the social ecological system as a whole.