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Palawan Sun Skink

    Leaves, twigs, and barks that have fallen to the ground make up leaf litter, and it's home to a wide variety of plants and animals. Most of the tiny animals found in the leaf litter are invertebrates. They are important food source for toads, skinks, and other small amphibians and reptiles that rely on the shelter and moisture provided by the leaf litter. One of the many creatures living in the leaf litter habitats of Palawan is the Palawan Sun Skink ( Eutropis sahulinghangganan ), a newly described species of skink endemic to Palawan. The name Eutropis sahulinghangganan derives from the Tagalog "sa huling" or "sa huli ng" (meaning in the last), and "hangganan" (meaning frontier). Palawan Sun Skink     The Palawan Sun Skink inhabits thick coastal forests, mangroves, as well as secondary forests and primary forests up in the mountains. I have seen this skink near the peak of Mount Beaufort at elevations of around 1000 masl, but the population of thi

Eyed Cyclops Butterfly

     The Erites argentina ochreana Staudinger 1889 in the Philippines occurs only in Palawan and although widespread in distribution, it is usually not easy to find. This Eyed Cyclops is a deep forest species inhabiting forests with thick canopies and second growths overgrown by palms and Dinochloa bamboos. It prefers shaded, moist and dense forest habitats and cannot be seen flying in grasslands, residential and agricultural areas. Its occurrence ranges from shaded forests near sea level up to the mountain slopes around 500 masl. It is rarely seen in mangrove areas and seems to be absent in old-growth forests and mossy forests high up in the mountains. Eyed Cyclops Butterfly      The Eyed Cyclops is furtive in nature. It likes to sit on a leaf for several minutes without moving and usually very active only on the forest floor in the morning and late afternoon. They usually fly close to the ground, following the openings between trees and low vegetations on the f

Chestnut-breasted Malkoha

     Our endemic Chestnut-breasted Malkoha in Palawan ( Phaenicophaeus curvirostris harringtoni ) is a large species of cuckoo in the Cuculidae family. It measures around 18 inches and it's one of the most attractive large species of birds inhabiting our forest.      The P. c. harringtoni has a beautiful metallic emerald green back and wing feathers, the underparts are mostly chestnut colored like the feathers on its belly and undertail coverts. The tail is mostly chestnut except for the upper- half part of central tail feathers which are metallic emerald green. Its throat, sides of the neck and breast are rufous.       Its head feather or crown is the same color of its upper back which is dark-olive gray. The featherless  face is red to maroon in color . It has greenish bill and the legs are bluish gray. Chestnut-breasted Malkoha     This dazzling bird inhabits the mainland and several smaller islands of Palawan (Balabac, Busuanga, Calauit, Culion, Dumara

Nepenthes palawanensis

     Palawan has several mountain peaks harboring large and unique species of pitcher plants that became popular around the world because of their size and beauty. The Nepenthes palawanensis is probably not the most beautiful, but it is the largest known species of pitcher plants growing in Palawan. A large pitcher of Nepenthes palawanensis measures around 35 cm in height, and with a capacity of 1.5 to 2 liters of water. Some healthy mature plants in October can produce pitchers that can hold up to around 2.5 liters of water. Nepenthes palawanensis      The Nepenthes palawanensis is endemic to End Peak, a mountain peak in the municipality of Narra, where it grows at elevations of 1100–1236 masl on an exposed and bushy ridge near the peak. It is said to inhabit the Sultan peak, but this is only due to navigation error. The team who discovered this pitcher plant has mistaken the End Peak for the Sultan Peak, the highest point of Sultan Range, which is more than t

Asian Leaf Turtle

     The genus Cyclemys is found in Southeast Asia and its members are typically referred to as 'leaf turtles' due to the serrated hind end border of its carapace that is akin to plant leaves. This is much more distinct in the juveniles and may offer some protection against predators that may attempt to bite or swallow the spiky shelled hatchlings. In the Philippines, the Cyclemys dentata Gray, 1831 is restricted to the Palawan group of islands, the Sulu archipelago, and Tawi-Tawi. Asian Leaf Turtle      The adults of this species are largely active at night, but can be seen walking on the forest floor near streams and rivers in the morning or late in the afternoon. Juveniles tend to be more active during the daytime and were observed feeding in the wild during the day. When resting, adult individuals can be found under the thick vegetation growing near the water and under large rocks or crevices of boulders on the banks of streams or rivers. Juvenile Asian Leaf

Hoya imbricata

     The Hoya imbricata is one of the Myrmecophile plants, or plants that have symbiotic relationship with ants. It is an epiphytic plant with long vines that climb or cling to tree trunks and branches. This Hoya produces a network of roots all along the length of the stems, which are located beneath the leaves that stick firmly on a bark surface. Mature plants can grow several yards in length and will branch and re-branch, producing intricate networks of overlapping leaves and vines blanketing the trunks or branches of their host plants. Hoya imbricata      The woody vines bear large succulent plate-like leaves, which clasp the tree bark surface upon which they grow. The leaves provide dome-like enclosures between the leaf and the bark. Ants colonize the spaces beneath these leaves. This space is protected to the outside elements and it makes great places where ants can build their homes. In return, the ants nourish the plant with significant carbon dioxide and nutrients fr

Nepenthes philippinensis

     A Pitcher plant is a carnivorous plant which have a modified prey-trapping leaves that features a deep cavity filled with digestive liquid. There are several endemic tropical pitcher plants growing in Palawan, the most common is the Nepenthes philippinensis .        This species has long, scrambling vines and are often climbers, accessing the canopy of their habitats using tendrils that stretches out and twines around any suitable support. It produces more pitchers and flowers on a single plant compared to all known species of nepenthes in Palawan. There are several color variants, but the lower pitchers are usually reddish and the upper pitchers or traps are green or yellowish.        This lowland species is widespread in Palawan and can be found thriving in soils with low nutrient availability and high concentrations of heavy metals like nickel and chromium. Like all carnivorous plants, this pitcher plant can grow in locations where the soil is too poor in mine

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Palawan Spitting Cobra

      The Palawan Spitting Cobra (Naja sumatrana miolepis) is a spitting cobra that can be found in Palawan. This species is a medium sized, ground dwelling venomous snake. The scales are smooth and unlike some of the most beautiful cobras in Asia, this species has no impressive hood marks. The head is elliptical and depressed, the eyes are medium in size with round pupils, the snout is rounded and the nostrils are large. Juveniles tend to be of different colour than the adult. They can grow up to around 1.5 meters, but spitting cobras over a meter in length are seldom seen and photographed in Palawan . Palawan Spitting Cobra hood mark       It can be seen resting during the day under heavy thickets of grass, stacks of woods and cavities under rocks or soil. Abandoned mice dens are favorite hideouts in grasslands, farms and rice fields. Although it usually hunts for food at night, this species can be seen moving around on the forest floor at sporadic times during the day. Locals a

Two-lined Coral Snake

     The Two-lined Coral Snake ( Calliophis bilineatus ) is a small, brightly colored venomous snake of the family Elapidae. It is endemic to Palawan and several of its smaller islands adjacent to mainland. This snake occurs on a wide range of elevation from second growth forest in sea level to mossy forests high up in the mountains where it is largely active during the day. I have been doing night spotting and photography for many years, but I have not seen one during nighttime. This snake spend most of its time burrowed underground, under stacks of woods and leaf piles or cavities under rocks. It has a unique defense behavior compared to other venomous snakes in Palawan. It usually flees when threatened, but when cornered, it will flip on its back and play dead. Other technique to fool attackers is by hiding its head while raising and flicking its red tails. The predator usually finds the colorful moving tail an irresistible target and would go for it, leaving the true

Nepenthes philippinensis

     A Pitcher plant is a carnivorous plant which have a modified prey-trapping leaves that features a deep cavity filled with digestive liquid. There are several endemic tropical pitcher plants growing in Palawan, the most common is the Nepenthes philippinensis .        This species has long, scrambling vines and are often climbers, accessing the canopy of their habitats using tendrils that stretches out and twines around any suitable support. It produces more pitchers and flowers on a single plant compared to all known species of nepenthes in Palawan. There are several color variants, but the lower pitchers are usually reddish and the upper pitchers or traps are green or yellowish.        This lowland species is widespread in Palawan and can be found thriving in soils with low nutrient availability and high concentrations of heavy metals like nickel and chromium. Like all carnivorous plants, this pitcher plant can grow in locations where the soil is too poor in mine

Schultz’s Pit Viper - A spectacular venomous snake endemic to Palawan

     I have heard it said that Palawan has more snakes in the wild than anywhere else in the country. Maybe true, but there are species of snakes commonly seen in other places that are scarce in Palawan rainforest. We have enough vipers in the wild though.  Trimeresurus schultzei Griffin 1909 commonly known as the Schultz’s Pit Viper is one of the most spectacular snakes that can be found here. This snake is endemic to Palawan and its surrounding small islands. Schultz’s Pit Viper       The Schultz’s Pit Viper is primarily arboreal species. They’re capable, but rarely navigate and hunt on the ground. They’re slow and less camouflaged on the ground and therefore more vulnerable on the forest floor. Using its prehensile tail to hold onto branches , it prefers to perch on trees where its green color acts as camouflage while waiting for prey. It is an ambush hunting snake relying on its camouflage to catch food. The heat-sensing loreal pits are used to locate warm-bl

Banded Keel-throated Pitviper

    The Banded Keel-throated Pitviper Tropidolaemus subannulatus (Gray, 1842) is said to be the most common pit viper in the Philippines. This venomous pit viper species is also native to Indonesia, Malaysia, and Brunei. Like the Schultz’s Pit Viper , this species is primarily arboreal and an ambush-hunting venomous snake. It is active at night, but also seen moving around during the day, especially in the rainy season. Banded Keel-throated Pitviper     The Banded Keel-throated Pitviper and the Shultz’s Pit Viper are both spectacular venomous pit viper that can be found in Palawan. They can be told apart from the shape of the head and the scales on the head. The scales of the head and chin of Banded Keel-throated Pitviper are strongly keeled, a closer look will show that the second upper labial is separated from the scale forming anterior border of facial pit. Shultz’s Pit Viper head and scales however looks smoother and the second upper labial is fused to the scale bordering the se

Palawan Mangrove Snake

    The Boiga dendrophila multicincta (Boulenger, 1896) is a large colubrid snake endemic to Palawan. It prefers humid habitats and always seen in woody areas close to bodies of water. This snake primarily occurs in lowland forests, mostly mangrove and riverine habitats, but is also found near mountain streams in the foothills up to old growth forest above 1000 masl. It is commonly seen resting on tree branches overhanging on bodies of water during the day and on the ground hunting for food at night. With its long body, this snake can move swiftly on trees and is also an adept swimmer. It is known to prey on birds and other small arboreal animals, but it seems to spend more time hunting on the ground where food is abundant. Palawan Mangrove Snake     The Palawan Mangrove Snake, also called Palawan Yellow-ringed Cat Snake is mildly venomous. But despite being considered not life-threatening to humans, locals fear this snake for its unpredictable and irritable behavior. They look