Although relatively sparsely populated in terms of the size of the territory, Guyana is nevertheless experiencing strong population growth with an average annual growth rate of more than 2.5 %. Most of the population is concentrated in the three major urban centres of the coastal fringe (Ile de Cayenne, Saint-Laurent du Maroni and Kourou). Given population growth, the need for new housing is estimated to be between 40 and 50000 in the next ten years, leading to an increase and densification of urban housing. Beyond the effects of environmental changes resulting from urbanisation, urban areas are also preferred sites for the introduction and establishment of alien species with high invasive potential. Indeed, human activities are now the basis for the movement of species and their introduction outside their native area, whether deliberately or accidentally. These biological escapes are recognised as one of the main causes of species extirpation after habitat destruction. Moreover, in addition to their role in the current erosion of biodiversity and changing the functioning of ecosystems, these escapes also often cause significant associated socio-economic damage. In this context, the study of urban biodiversity in Guyana is important to better understand and predict important changes.