Abstract

Abstract Great concern has been expressed regarding the impacts of global warming and sea level rise on coastal areas and associated wetlands. Mangroves have been identified as potentially good indicators for detecting and monitoring sea level changes, because they occupy unconsolidated sediments subject to processes which would be influenced by sea level changes, and are known to display rapid responses to hydrological, geomorphic and climatic changes. Because mangroves develop under varying tidal regimes and imputs of fresh water, nutrients and sediments, patterns of response to sea level changes cannot be easily extrapolated from one location to another. In this paper, we suggest that Thom's (1984) physiographic classification of mangrove environments, coupled with an eco-regional approach, could be used to develop a framework for implementing long-term studies, monitoring sea-level changes, and help plan appropriate management policies to address the expected impacts.

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