Navigating the Tropical Evergreen Canopies and the Biodiversity of a Global Hotspot.
The Architecture of the Jungle
While most visitors keep their eyes on the horizon, the real marvel is overhead. The Andaman forests are classified as Tropical Evergreen and Semi-Evergreen. Unlike the deciduous forests of the Indian mainland that shed leaves seasonally, these forests remain in a perpetual state of “Ancient Green.”
The canopy is structured in layers. The Emergent Layer features giants like the Andaman Padauk (Pterocarpus dalbergioides), which can grow up to 30 meters. Below them, a dense web of woody climbers (Lianas) and epiphytes (orchids and ferns) creates a vertical city.
The Mangrove Guardians
As you drive toward Baratang or explore the creeks of Havelock, you encounter the “walking trees”—the Mangroves. These are not merely plants; they are a sophisticated coastal defense system.
- Biological Filtration: Their complex root systems (Pneumatophores) filter out up to 90% of the salt from seawater, allowing them to thrive where other plants would die.
- The Nursery: These roots provide a protected “nursery” for 70% of the islands’ marine life, including juvenile snappers and the rare Saltwater Crocodile (Crocodylus porosus).
The Jarawa Presence and the Trunk Road
The forest is also a human story. The Andaman Trunk Road (ATR) traverses the Jarawa Tribal Reserve. The Jarawas are one of the four “Negrito” tribes of the Andamans, having lived in these forests for an estimated 50,000 years in near-total isolation.
- The Ethics of the Forest: As a traveler, passing through here is a lesson in restraint. Interaction is strictly prohibited by the Andaman and Nicobar Islands Protection of Aboriginal Tribes Act (1956). You are a silent witness to a way of life that hasn’t changed since the Stone Age.
Bliss Botanical Fact:
- Endemism: Out of the 2,500+ plant species found here, about 10% are endemic.
- The “Pillar Tree”: Look for the Gurjan tree; it’s the primary source of plywood for India and grows perfectly straight, reaching for the sun like a natural pillar.
The Bliss Data Corner
- Endemic Sanctuary: 14% of the flora found here is found nowhere else on the planet.
- Canopy Height: Tropical Evergreen giants like the Gurjan reach heights of 40–60 meters (equivalent to a 15-story building).
- The Mangrove Lung: These islands house 1/5th of India’s total mangrove cover, spanning approximately 600 sq. km.
