Indian Flying Fox (Pteropus giganteus) dusk dispersal over Kandy Lake: foraging flight corridors?
What environmental triggers and visual cues coordinate the simultaneous dusk departure of thousands of mega-bats from the Royal Botanic Gardens roost at Peradeniya?
More
3 Answers from travellers
The mega-colony of Indian Flying Foxes (Pteropus giganteus / Maha Wawula) roosting in the ancient Albizia and Ficus trees at Peradeniya numbers over 15,000 individuals. Dispersal begins exactly at civil twilight (ambient light dropping below 10 lux). The departure is synchronized by social vocalizations and circle-banking above the Mahaweli River canopy. Utilizing acute scotopic vision and spatial memory of ridgeline silhouettes, the bats fly along fixed river corridors toward upland fruit orchards across Matale and Gampola, dispersing up to 40 kilometers in a single night to feed on wild figs and mangoes.
Flying foxes do not possess ultrasonic echolocation; they navigate purely using large, highly light-sensitive eyes adapted for low-light horizon recognition.
They function as the primary seed dispersers for large-seeded rainforest canopy trees like Dipterocarpus and Madhuca across isolated forest fragments.
You must be logged in to post an answer.
Log In to AnswerRelated questions
- Wildlife parks in Sri Lanka beyond Yala - Wilpattu, Minneriya, Udawalawe - which is worth visiting?2 answers
- Kandy Esala Perahera - when does it happen, where are the best viewing spots, and how do I get seats?2 answers
- Arugam Bay vs Weligama for intermediate surfing - which should I choose and why?2 answers
- Best local food to eat in Colombo - where do locals actually eat and what should I try?2 answers
- How cheap can you realistically travel Sri Lanka on a shoestring - $25-30 USD per day?2 answers
- Ayurveda retreat in Sri Lanka - what to expect and how to find genuine treatment vs tourist trap?2 answers
Join a Crew
Kandy Perahera Live Tonight
Perahera Seats, Hotels & Roads
Dalada & Perahera Culture