Most studies to date assume that there are multiple relationships between ecosystem services and human well-being, but there are few studies that quantify these relationships. Our objectives were: (1) to investigate the trends and understudied areas within ecosystem services and well-being research; and (2) within these general trends, to analyze to what extent the linkages between ecosystem services and well-being presented in empirical research in Africa, Asia, and Latin America were part of a tested hypothesis, and to assess which conceptual frameworks were used in understanding this interface. The results of this study highlighted that most publications assumed that ecosystem services and well-being were interlinked but did not analyze their relationship as part of the hypothesis to test. While different frameworks on well-being were adopted by empirical research, only one out of the 29 post-Millennium Ecosystem Assessment (MEA) conceptual frameworks that illustrate the linkages between ecosystem services and well-being was documented, and most case studies adopted the MEA. Finally, trade-offs and synergies between ecosystem services and disaggregated well-being were understudied. Considering these knowledge gaps in future studies will help empirical ecosystem services research to simultaneously contribute to improved well-being and environmental sustainability when applied at multiple policy or institutional levels. (Résumé d'auteur
A B S T R A C TMost climate projections predict that average surface temperature and precipitation variability will increase at the global scale, triggering hydrological variations and alterations in river flows and groundwater table levels. Climate change impacts on freshwater resources are likely to affect freshwater availability and quality and by extension, the ability of water systems to support natural processes and ensure population needs. As a result, the vulnerability of water systems to adverse conditions (e.g. water shortages, overexploitation, and quality deterioration) is intensified; hence, methods and tools for vulnerability assessment and identification of adaptation measures are necessary. This paper proposes a comprehensive framework for the assessment of water systems' vulnerability to adverse water related conditions and the identification of potential adaptation strategies. The proposed methodology is applied in the four study site areas of the FP7 COROADO project (selected river basins in Argentina, Brazil, Chile, and Mexico), and an indicator-based framework is adopted, expressing natural, physical, socio-economic, and institutional attributes of the examined areas. The vulnerability assessment was conducted following a disaggregated analysis (use of proxy indicators). The vulnerability profiles of the four study sites were formulated, describing the factors shaping vulnerability and the aspects that need improvement. Additionally, the anticipated contribution of alternative strategies to vulnerability mitigation was assessed. The systems' response to alternative strategies (what-if scenarios) was analyzed following an aggregated analysis (estimation of an overall vulnerability index).
BackgroundWildlife has been traditionally used by forest communities as a source of protein, and the Peruvian Amazon is no exception. The articulation of colonist and indigenous communities to urban centers and markets results in changes in livelihood strategies and impacts on wildlife populations. To address the threat of overhunting and forest conversion, we provide a generalized characterization of colonist and indigenous communities and their hunting activities near Pucallpa, Ucayali, Peru.MethodsA semi-structured household survey was conducted to characterize hunters and describe their prey collections. The data were analyzed by conducting a Kruskal-Wallis test, a multiple regression analysis, and by estimating the harvest rate (H).ResultsLess wealthy households were more actively engaged in hunting for food security and as a livelihood strategy. Additionally, older hunters were associated with higher hunting rates. Although the percentage of hunters was relatively low, estimated hunting rates suggest overharvesting of wildlife. Lowland pacas (Cuniculus paca) were the most frequently hunted prey, followed by red brocket deer (Mazama americana) and primates. While hunting intensity was not significantly different between indigenous and colonist communities, hunting rate disparities suggest there are different types of hunters (specialized vs. opportunistic) and that prey composition differs between communities.ConclusionClose monitoring of wildlife populations and hunting activities is ideal for more accurately determining the impact of hunting on wildlife population and in turn on forest health. In lack of this type of information, this study provides insight of hunting as a shifting livelihood strategy in a rapidly changing environment at the forest/agriculture frontier.Electronic supplementary materialThe online version of this article (10.1186/s13002-018-0247-2) contains supplementary material, which is available to authorized users.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.