Border Ecologies outlines the potential ecosystems that emerge in border regions. The book identifies of emergent conditions including transitional and anomalous spaces as well as specific social and cultural conditions that can be indicative of a proto-spatial order and an embedded eco-logic. Broadly speaking, our understanding is that any border environment seeks to balance out the discontinuities, differences, conflicts and imbalances established by the border. These highly dynamic processes employ a range of informal and formal mechanisms that regulate, exploit, feed off and contribute to the metabolism of that particular border. Therefore provide models and new paths for urban development and governance. This book outlines some of these urban conditions as possible constituents and principles of a border ecosystem. The ideas, concepts and principles are contextualised within the broad issue of border studies, but are localised with the specific socio-economic conditions and unique spatial and geographic factors of the Hong Kong – Shenzhen border.