Context: Recently, Myristica swamp treefrog has been recorded for the first time in Kerala's Thrissur district.

About

• It bears the scientific name Mercurana myristicapalustris.
• The frog was first spotted in 2013 in the Myristica swamps of Arippa, near the Kulathupuzha Reserve Forest, in the western foothills of Agasthyamalai, in Kollam district.
• Unlike the Myristica swamp treefrog found in the foothills of the Agasthyamalai, these frogs were found to be active throughout June and early July.

Unique traits

• These frogs are rare and elusive for the reason that they are arboreal and active only for a few weeks during their breeding season.
• During this season, there is a large aggregation of males that descend from the high canopy of the trees.
• The breeding season, unlike for other frogs, starts in the pre-monsoon season (May) and ends before the monsoon becomes fully active in June.
• Before the end of the breeding season, the female frogs along with their male counterparts descend on the forest floor. The female digs the mud and lays eggs in shallow burrows in mud.
• After breeding and egg-laying, they retreat back to the high canopies of the tree and remain elusive till next breeding season.

About Myristica Swamps

• The Myristica swamps are tropical freshwater swamp forests with an abundance of Myristica trees.
• Myristica trees are the most primitive of the flowering plants on earth.
• The evergreen, water-tolerant trees have dense stilt roots helping them stay erect in the thick, black, wet alluvial soil.
• The trees form a fairly dense forest with a closed canopy.
• The swamps are typically found in valleys, making them prone to inundation during monsoon rains.