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Imagem de Varanus bitatawa Welton, Siler, Bennett, Diesmos, Ruya, Dugay, Rico, Van Weerd & Brown 2010
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Varanus bitatawa Welton, Siler, Bennett, Diesmos, Ruya, Dugay, Rico, Van Weerd & Brown 2010

Size ( Inglês )

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V. bitatawa has a large, robust body. Its dorsal side is black and golden, and the head is black speckled with yellow. The forelimbs are more yellow than black, while the hind limbs are black with large yellow spots. The tail is striped with black and yellow. Its nares, or nostrils, are anteriorly directed. Like other members of its genus, V. bitatawa displays hemipenal morphology (Welton, et al. 2010).
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Behavior ( Inglês )

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V. bitatawa is suspected of being a secretive species like its closest relative, Varanus olivaceus, meaning it never leaves the forests to traverse open areas. (Welton, et al., 2010)
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Diagnostic Description ( Inglês )

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V. bitatawa has a large, robust body. Its dorsal side is black and golden, and the head is black speckled with yellow. The forelimbs are more yellow than black, while the hindlimbs are black with large yellow spots. The tail is striped with black and yellow. Its nares, or nostrils, are anteriorly directed. Like other members of its genus, V. bitatawa displays hemipenal morphology (Welton, et al. 2010).
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Distribution ( Inglês )

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V. bitatawa are found in central and northern Sierra Madres in Luzon in the Philippines (Welton, et al. 2010).

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Habitat ( Inglês )

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V. bitatawa inhabits the northern forests in the Sierra Madre Range on Luzon Island in the Philippines (Welton, et al. 2010).
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Conservation Status ( Inglês )

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V. bitatawa is not yet included in the IUCN Red List of Threatened Species. Its closest relative, Varanus olivaceus is listed as Vulnerable (IUCN, 2010).
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Trends ( Inglês )

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The habitat of V. bitatawa is highly deforested. Scientists hope large vertebrate species like V. bitatawa will act as flagship species for conserving the forests in Luzon (Welton, et al. 2010).

The island's mountain ranges and river valleys create disparate habitats allowing for differential evolution of related taxa. This means the biodiversity in the region may be richer than previously thought, and the Philippines may be well on their way to being listed as a biodiversity hotspot. Threats to V. varanus's habitat include legal and illegal logging, unsustainable hunting and the construction of roads that transect the forests (Lamoreux, 2001).

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Brief Summary ( Inglês )

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Vavanus bitatawa is a 6 foot (2 meters), brightly colored monitor lizard that was hidden from science in the heavily deforested island of Luzon in the Philippines until 2009. Large terrestrial lizards rarely go unnoticed, and with its black and gold patterned scales, V. bitatawa is relatively conspicuous (Welton, et al. 2010).

It may be big, colorful, and inhabit a heavily populated area--Luzon is host to the three largest cities in the Philippines, including Manila, Quezon City, and Caloocan City--but V. bitatawa was unknown to scientists until 2009. The scientists who first recorded seeing the species suspect V. bitatawa, like its close relative V. olivaceous, is secretive and "hides" in trees (Welton, et al. 2010) (Read more: Behavior).

While the lizard was still absent from scientists' biodiversity register, it was well known to the indigenous Agta and Ilongot tribespeople, who regard it as a rich source of protein. In fact, the name Bitatawa is derived from the Agta tribe's common name for the species.(Welton, et al. 2010)

Despite its elusive nature, V. bitatawa cannot hide from the deforestation activity that is threatening its habitat in the northern Sierra Madre mountains. Locals are tearing down the forests for logging, both legal and illegal, and small-scale subsistence agriculture. The Philippines were thought to be nearly completely covered in primary forest, but in the late 1990s, studies showed less than 6 percent of the land cover retained intact lowland forest. Since then, reports show more forests are being cleared. Scientists say they hope charismatic species like V. bitatawa can become effective flagship species for conservation efforts for Luzon's forests (McGinely and WWF 2008) (Read more: Trends and Threats).

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