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Despite the important role of wetlands in our society, they are continuously threatened by human activity. In Canada, the critical loss of these habitats has fostered the application of preventive measures to at least reduce, if not avoid, their accelerated disappearance. In order to implement adequate environmental practices to protect these ecosystems, managers need to have a global knowledge of their situation. In this context, Web Geographic Information Systems (GIS) offer the possibility to visualize and share multiple integrated data as well as geoprocessings that can provide essential information to understand the relative risks wetlands are undergoing. In this work, we present the extension of an existing open source Web-GIS platform to manage wetlands in the province of Quebec, eastern Canada. The current platform offers new systematic and generalist spatial processing tools inspired on the metapopulation theory and on the concept of ecological integrity to evaluate changes in landscape that could affect wetlands systems. These new functionalities provides more compact and valuable information about wetlands' state that can inform decision-making in conservation of these habitats and biodiversity. The functions proposed can be used by different type of users without any particular or specific knowledge.