Courtin Fabrice auteur aut IRD Sidibé I. auteur aut IRD Rouamba J. auteur aut IRD Jamonneau Vincent auteur aut IRD Gouro A. auteur aut IRD Solano Philippe auteur aut IRD text journalArticle fre text/pdf reformatted digital access Demographic evolution, climatic change and economical development that happened in West Africa during the XXth century had a lot of consequences on human settlement and landscape. These changes have in turn an impact on the pathogenic system of human and animal tryponosomoses. Since lost century, the northern tsetse distribution limit has shifted towards the south, probably due to a decrease in rainfall combined to the impact of human pressure. Sleeping sickness (SS) foci have also shifted from the savannah areas (where there is no more SS) to the forest and mangrove areas of West Africa, but animal tryponosomoses are still present in savannah. We show a decrease of tsetse of the morsitans group as a result of an increase of human densities. On the opposite, tsetse species like Glossina palpalis adopt to high human densities and are found in the biggest urban centres of West Africa. There is a need to promote multidisciplinary studies on this demographic-climatic-vector borne disease topic, especially in Africa to be able to define future areas of presence/absence of these diseases in order to help continental plans of control that hove recently begun. specialized population growth global warming West Africa impact tsetse flies trypanosomosis 052 16 1 3-10 2009 1252-607X https://www.documentation.ird.fr/hor/fdi:010044381 10.1051/parasite/2009161003 1252-607X [F B010044381] https://www.documentation.ird.fr/hor/fdi:010044381 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-10/010044381.pdf IRD - Base Horizon / Pleins textes 2009-05-13 2017-02-10 fdi:010044381 fre