Abstract
With the aim of generating a strategy for biocultural conservation, we explore the structure and robustness of the botanical medical systems in the Biosphere Reserve “Bioma Pampa-Quebradas del Norte,” Uruguay, combining ethnobotanical hypotheses and network theory. We report a heterogeneous distribution of knowledge of medicinal plants with a potential limit to the individual knowledge (truncated–power-law). The robustness analysis in the face of alternative potential scenarios of system degradation indicates that the ethnobotanical system presents a high level of resistance to the loss of agents and medicinal plants species, but also a nonlinear response with a threshold of degradation after which an abrupt collapse in system structure is expected. To counter these threats at the Biosphere Reserve, we propose to promote ethnobotanical knowledge transmission and sustainable development in rural areas, and to encourage the development of strategies for the conservation of medicinal plants.
Abstracto
Con el objetivo de generar una estrategia de conservación biocultural, exploramos la estructura y la robustez del sistema botánico médico en la Reserva de Biosfera “Bioma Pampa-Quebradas del Norte,” Uruguay, combinando hipótesis etnobotánicas y teoría de redes. Reportamos una distribución heterogénea del conocimiento sobre las plantas medicinales con un límite potencial del conocimiento individual (ley poder-truncada). El análisis de robustez frente a posibles escenarios alternativos de degradación, indica que el sistema etnobotánico presenta un alto nivel de resistencia a la pérdida de agentes y plantas medicinales. También se observa una respuesta no lineal con un umbral de degradación, después del cual se produce un colapso abrupto de la estructura del sistema. Para contrarrestar estas amenazas en la Reserva de Biosfera, proponemos promover los procesos de transmisión de conocimiento etnobotánico y el desarrollo sostenible en áreas rurales, así como alentar el desarrollo de estrategias para la conservación de plantas medicinales.
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Acknowledgments
This article would not have been possible without the collaboration of the residents of the Biosphere Reserve “Bioma-Pampa Quebradas del Norte, Rivera.” This research was financed by the National Agency for Research and Innovation of Uruguay (ANII), within the framework of the Ph.D scholarship granted to ECL. Other economic support was provided by the Rufford Small Grant and the Swiss Embassy in Uruguay. ECL is grateful for the careful reading of María Leila Pochettino. We also want to thank Orou Gaoue for helpful comments and revision that have significantly improved the manuscript.
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Received 23 November 2018; accepted 18 March 2020.
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Castiñeira Latorre, E., Canavero, A. & Arim, M. Ethnobotanical Knowledge Complexity in a Conservation Area of Northern Uruguay: Interlocutors-Medicinal Plant Network and the Structural Patterns of Interaction. Econ Bot 74, 195–206 (2020). https://doi.org/10.1007/s12231-020-09491-3
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DOI: https://doi.org/10.1007/s12231-020-09491-3