DAVAO CITY (MindaNews / 7 May 2026) — A Mindanao mangrove snake was recently documented for the first time inside the Baganga Mangrove Swamp Forest Reserve (BMSFR) in Davao Oriental, adding to the growing list of wildlife species recorded in the protected mangrove ecosystem.
According to a Facebook post by the Department of Environment and Natural Resources (DENR) Davao Region on Thursday, the snake — identified as Boiga dendrophila latifasciata — was spotted last April 21 during routine patrol operations conducted by the Community Environment and Natural Resources Office (CENRO) in Baganga.
The snake was observed resting on a bakhaw laki tree within the reserve. DENR identified the species through its distinctive appearance: a glossy black body marked by bright yellow bands.
Commonly known as the mangrove snake or gold-ringed cat snake — and sometimes referred to as the mangrove cat snake — the species is nocturnal and arboreal, meaning it is most active at night and spends much of its time in trees. It is commonly associated with mangrove forests, riverbanks, and lowland forest habitats across Southeast Asia.
The mangrove snake sighting on a bakhaw comes amid ongoing conservation and rehabilitation efforts in mangrove areas across Mindanao, with communities and environmental groups continuing to push back against coastal conversion and illegal cutting.
According to the International Union for Conservation of Nature (IUCN) Red List, Boiga dendrophila — the species group to which the Mindanao mangrove snake belongs — inhabits lowland forests, riverbanks, and mangrove ecosystems across Southeast Asia. The subspecies documented in Baganga is endemic to parts of the Philippines, including Mindanao, Samar, Leyte, and Dinagat.
Like other mangrove snakes, it is rear-fanged and mildly venomous, feeds primarily on small vertebrates, and is known to persist even in partially disturbed habitats — a sign of adaptability to environmental change. Still, however, mangrove degradation and lowland forest loss remain threats to the species and its habitat.
The DENR said the sighting highlights the “the ecological importance of mangrove ecosystems in sustaining diverse wildlife.” In this light, mangroves are not only critical coastal defenses but also habitats for species specially adapted to brackish, tidal environments.
Under Department Administrative Order 2019-09, the Mindanao mangrove snake is classified as an “Other Threatened Species” (OTS), meaning it may become vulnerable to extinction if threats such as habitat destruction and environmental degradation continue.
The agency added that the documentation contributes to the biodiversity inventory of the mangrove reserve, and strengthens calls “for continued conservation, protection, and monitoring efforts in the area.”
Sightings such as these underscore how much of Mindanao’s biodiversity remains understudied, even within protected landscapes already under regular monitoring, and especially in coastal areas facing development pressure. (Bea Gatmaytan / MindaNews)
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