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Journal Article Modelling Malaria as a Complex Adaptive System(1997) Janssen, Marco A.; Martens, W.J.M."As the resistance of the malaria parasite to antimalarial drugs continues to increase, as does that of the malarial mosquito to insecticides, the efficacy of efforts to control malaria in many tropical countries is diminishing. This trend, together with the projected consequences of climate change, may prove to exacerbate substantially the significance of malaria in the coming decades. "In this article we introduce the use of an evolutionary modeling approach to simulate the adaptation of mosquitoes and parasites to the available pesticides and drugs. By coupling genetic algorithms with a dynamic malaria-epidemiological model, we derive a complex adaptive system capable of simulating adapting and evolving processes within both the mosquito and the parasite populations. "This approach is used to analyze malaria management strategies appropriate to regions of higher and lower degrees of endemicity. The results suggest that adequate use of insecticides and drugs may reduce the occurrence of malaria in regions of low endemicity, although increased efforts would be necessary in the event of a climate change. However, our model indicates that in regions of high endemicity the use of insecticides and drugs may lead to an increase in incidence due to enhanced resistance development. Projected climate change, on the other hand, may lead to a limited reduction of the occurrence of malaria due to the presence of a higher percentage of immune persons in the older age class."Journal Article An Update on the Scholarly Networks on Resilience, Vulnerability, and Adaptation within the Human Dimensions of Global Environmental Change(2007) Janssen, Marco A."In Janssen et al. (2006), we presented a bibliometric analysis of the resilience, vulnerability, and adaptation knowledge domains within the research activities on human dimensions of global environmental change. We have updated the analysis because 2 years have gone by since the original analysis, and 1113 more publications can now be added to the database. We analyzed how the resulting 3399 publications between 1967 and 2007 are related in terms of co-authorship and citations. The rapid increase in the number of publications in the three knowledge domains continued over the last 2 years, and we still see an overlap between the knowledge domains. We were also able to identify the hot publications of the last 2 years."Journal Article Resilience and Adaptation in the Governance of Social-ecological Systems(2011) Janssen, Marco A."In this special issue a series of papers has been collected to further the frontier of the study of the governance of social-ecological systems. The papers are a selection of presentations from the North American Regional Meeting of the IASC, which was held from September 30 until October 3, 2010 at the Tempe campus of Arizona State University. The theme of the conference was 'Capturing the Complexity of the Commons.' Approximately 120 people participated in this event, and around 100 presentations were given. The papers that were invited for this special issue addressed the theme of resilience and adaptation in the governance of social-ecological systems."