Abstract
The islets of Martinique are at varying distances from the coastline and are small territories that reveal a high level of ecosystem complexity, hence their scientific interest. They are located in particular eco-climatic conditions, one of the characteristics of which is the duration of the dry period which exceeds five months. Desiccation leads to very specific animal and vegetal adaptations (anatomical, morphological, physiological) and to dynamic processes that are also very unique (vegetal dynamics by patches by plates). From the synecological point of view (community functioning), despite a fund of greatly reduced species, but with diversified and atypical combinatorial modalities, these biosystems refer to ecosystem potentialities that differ from those conventionally used to describe, in particular, the forest types of Martinique (UNESCO Nomenclature). With the help of transects, it has been possible to generate qualitative and quantitative data whose interpretation of the statistical treatments has allowed us to approach the structure, the functioning and the evolution traits of these singular systems (the islets of Martinique).