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| Palawan Fanged Frog |
The Palawan Fanged Frog (Limnonectes acanthi), also known as Busuanga Wart Frog, is a medium-sized amphibian belonging to the Dicroglossidae family endemic to the Palawan faunal region. It can be found in mainland Palawan, including the islands of Balabac, Busuanga, Culion, and Coron, where it thrives in lowland rainforest and lower montane forests from sea level up to around 800 meters. They are almost always found in close proximity to clean, flowing water such as rivers, streams, creeks, and waterfalls. They often prefer rocky or gravelly substrates and are frequently observed perched on large boulders or tucked into crevices within the stream bed. While this frog shows some resilience to modified environments like agricultural edges, it remains dependent on shaded, humid conditions and proximity to pristine, flowing water for its survival and reproduction.
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| Palawan Fanged Frog |
Like many species of frogs in Palawan, the Limnonectes acanthi is a nocturnal predator that emerges after dusk to hunt insects along riparian zones. It hides during the daytime mostly inside soil and rock cavities in the riverbank or vegetation-covered depressions near the water's edge and beneath accumulations of damp leaf litter in the riverbed. In the Palawan mainland, it is often seen at night seeking food in places where another species of frogs, such as the Palawan Rock Frog, Palawan Torrent Frog, Common Puddle Frog, Philippine Flat-headed Frog, and Palawan Stream Frog, are found. Unlike many amphibians that lay eggs directly in the water, this species lays its eggs on rocks or vegetation slightly above the water level. This strategy likely protects the clutch from aquatic predators or shifting currents until the larvae are ready to emerge.
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| Palawan Fanged Frog |
The IUCN has categorized this species as Near Threatened due to significant population decline in Palawan, driven primarily by over-harvesting for local subsistence and widespread habitat loss. The Palawan Council for Sustainable Development (PCSD) classified this species as Vulnerable under Resolution No. 15-521, and it is protected under Republic Act 9147, the Wildlife Resources Conservation and Protection Act of 2001. Although the Palawan Fanged Frog demonstrates some resilience by appearing in disturbed areas like irrigated and seasonally flooded agricultural land, it remains heavily dependent on natural lowland habitats that are currently facing severe destruction. Without the preservation of these essential environments, the combined pressures of exploitation and range-wide habitat degradation are expected to cause further population instability.
