MYRISTICA SWAMP FOREST (Syllabus: GS Paper 3 – Env and Eco)

Context: Researchers recently discovered a Myristica swamp forest in Kumbral, Maharashtra, safeguarded by the local community. This rare ecosystem highlights the community's role in preserving biodiversity.

Myristica Swamp Forest

• About: These are freshwater ecosystems dominated by evergreen trees belonging to the Myristicaceae family.
• Distribution: In India, Myristica swamps are primarily found in the Western Ghats, with smaller patches in the Andaman and Nicobar Islands and Meghalaya.
• Fossils: These swamps are referred to as "living fossils" due to the ancient and primitive nature of Myristica plants.
• Evolution: With an origin dating back approximately 140 million years, Myristica swamps are crucial for evolutionary studies.

oHistorically, these swamps formed extensive hydrological systems throughout the Western Ghats.

• Structures: The forests are characterized by large, protruding roots emerging from waterlogged soil, which remains flooded throughout the year.
• Swamp Formation: Their formation depends on specific abiotic factors such as valley shapes, annual rainfall (around 3000 mm), and year-round water availability.

oTypically located near rivers, Myristica swamps act as natural sponges, retaining water and ensuring perennial water flow.

• Significance: These forests have a greater ability to sequester carbon compared to non-swamp forests.
• Due to stable ecological conditions like high humidity and moderate temperatures, these swamps support a rich diversity of vertebrate and invertebrate species.
• Example Species: One notable species is the Myristica Swamp Treefrog (Mercurana myristicapalustris), found only in select areas of Kerala's Shendurney and Peppara Wildlife Sanctuaries.