Tree pangolin

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Tree pangolin
Tree pangolin (Phataginus tricuspis) Nyamebe Bepo.jpg
In Nyamebe Bepo Forest Reserve, Ashanti Region, Ghana
CITES Appendix I (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Pholidota
Family: Manidae
Genus: Phataginus
Species:
P. tricuspis
Binomial name
Phataginus tricuspis
(Rafinesque, 1821) [3]
Distribution M. tricuspis.svg
  Distribution of the tree pangolin

The tree pangolin [4] (Phataginus tricuspis) is one of eight extant species of pangolins ("scaly anteaters"), and is native to equatorial Africa. Also known as the white-bellied pangolin or three-cusped pangolin, it is the most common of the African forest pangolins.

Contents

in the Democratic Republic of the Congo Tree Pangolin.JPG
in the Democratic Republic of the Congo

Description

Phataginus tricuspis is a relatively small pangolin. The combined head and body length is 33–43 cm (13–17 in). The tail is 49–62 cm (19–24 in). Each dark brown to brownish yellow scale has three points, to which the specific name tricuspis refers. These scales cover the whole body besides the face, underbelly, and insides of the legs. [5] The scales are made of keratin, as are human fingernails, and are anchored at the base to the pangolin's skin. The head is small, and the snout is elongated. The feet are short, and each foot has five long curved claws.

Taxonomy

The tree pangolin had belonged to the genus Manis and subgenus Phataginus before Phataginus was elevated to generic status. [3] Two subspecies were recognized in 1972 by Meester:

The tree pangolins, along with the Long-tailed pangolins, make up the genus Phataginus (the African Tree Pangolins). [8] This makes Phataginus tetradactyla the closest relative to Phataginus tricuspis.

A tree pangolin skeleton on display at The Museum of Osteology Tree pangolin skeleton.jpg
A tree pangolin skeleton on display at The Museum of Osteology

Range and habitat

The tree pangolin ranges from Guinea through Sierra Leone and much of West Africa to Central Africa as far east as extreme southwestern Kenya and northwestern Tanzania. To the south, it extends to northern Angola and northwestern Zambia. It has been found on the Atlantic island of Bioko, but no records confirm a presence in Senegal, Gambia, or Guinea-Bissau. [8]

The tree pangolin is semiarboreal and generally nocturnal. It is found in lowland tropical moist forests (both primary and secondary), as well as savanna/forest mosaics. It probably adapts to some degree to habitat modification, such as commercial plantations, as it favours cultivated and fallow land where it is not aggressively hunted (e.g., abandoned or little-used oil palm trees in secondary growth). [9]

Behavior

The tree pangolin can walk on all fours or on its hind legs using its prehensile tail for balance. It can climb up trees in the absence of branches. When walking on all fours, it walks on its front knuckles with its claws tucked underneath to protect them from wearing down. Its anal scent glands disperse a foul secretion much like a skunk when threatened. It has a well-developed sense of smell, but as a nocturnal animal, it has poor eyesight. Instead of teeth, it has a gizzard-like stomach full of stones and sand it ingests. The tree pangolin in Africa fills its stomach with air before entering water to aid in buoyancy for well-developed swimming.

The tree pangolin has many adaptations. When threatened, it rolls up into a ball ("volvation"), protecting itself with its thick skin and scales. Its scales cover its entire body except for the belly, snout, eyes, ears, and undersides of the limbs. When a mother with young is threatened, she rolls up around the young, which also roll into a ball (Liu et.al, 2016). While in a ball, she can extend her scales and make a cutting action by using muscles to move the scales back and forth. She makes an aggressive huff noise when threatened, but that is the extent of her noise-making.

Diet

The tree pangolin eats insects such as ants and termites from their nests, or the armies of insects moving on the trees. This form of diet is called myrmecophagy. It relies on its thick skin for protection, and digs into burrows with its long, clawed forefeet. It eats between 5 and 7 ounces (150 to 200 g) of insects a day. The pangolin uses its 10- to 27-in (250- to 700-mm) tongue which is coated with gummy alkaline mucus to funnel the insects into its mouth. The tongue is actually attached to the end of the xiphoid process of the sternum in the abdominal cavity. [9]

Reproduction

Female pangolin territories are solitary and small, less than 10 acres (4 ha), and they rarely overlap. Males have larger territories, up to 60 acres (24 ha), which overlap many female territories, resulting in male/female meetings. Pangolins can demonstrate their availability through feces and urine markings as well as by spreading the scent produced by their anal glands. The meetings between males and females are brief unless the female is in estrus, when mating occurs. Gestation of young lasts 150 days, and one young per birth is normal. The young pangolin cannot walk at birth so it is carried on its mother's tail. It is weaned after three months, but it remains with its mother for five months in total. At first, the newborn's scales are soft, but, after a few days, they start to harden. [10]

Use by humans

The tree pangolin is subject to widespread and often intensive exploitation for bushmeat and traditional medicine, and is by far the most common of the pangolins found in African bushmeat markets. Conservationists believe this species underwent a decline of 20–25% between 1993 and 2008 (three pangolin generations) due mainly to the impact of the bushmeat hunting. They assert it continues to be harvested at unsustainable levels in some of its range. Its conservation status has been progressively elevated over time, from "Least Concern" in 1996 to "Endangered" by 2019. [1]

Related Research Articles

<span class="mw-page-title-main">Pangolin</span> Mammals of the order Pholidota

Pangolins, sometimes known as scaly anteaters, are mammals of the order Pholidota. The one extant family, the Manidae, has three genera: Manis, Phataginus, and Smutsia. Manis comprises four species found in Asia, while Phataginus and Smutsia include two species each, all found in sub-Saharan Africa. These species range in size from 30 to 100 cm. A number of extinct pangolin species are also known. In September 2023, nine species were reported.

<span class="mw-page-title-main">Ground pangolin</span> Species of mammal

The ground pangolin, also known as Temminck's pangolin, Cape pangolin or steppe pangolin is a species of pangolin from genus Smutsia of subfamily Smutsiinae the within family Manidae. It is one of four species of pangolins which can be found in Africa, and the only one in southern and eastern Africa. The animal was named for the Dutch zoologist Coenraad Jacob Temminck.

<span class="mw-page-title-main">Bushmeat</span> Meat hunted in tropical forests

Bushmeat is meat from wildlife species that are hunted for human consumption. Bushmeat represents a primary source of animal protein and a cash-earning commodity for inhabitants of humid tropical forest regions in Africa, Latin America and Asia. Bushmeat is an important food resource in poor, rural communities.

<span class="mw-page-title-main">Potto</span> Arboreal primate of west-central Africa

The pottos are three species of strepsirrhine primate in the genus Perodicticus of the family Lorisidae. In some English-speaking parts of Africa, they are called "softly-softlys".

<span class="mw-page-title-main">Manidae</span> Family of pangolins

Manidae ("spirits") is the only extant family of pangolins from superfamily Manoidea. This family comprises three genera, as well as extinct Fayum pangolin.

<span class="mw-page-title-main">Indian pangolin</span> Species of mammal

The Indian pangolin, also called thick-tailed pangolin and scaly anteater, is a pangolin native to the Indian subcontinent. Like other pangolins, it has large, overlapping scales on its body which act as armour. The colour of its scales varies depending on the colour of the earth in its surroundings. It can also curl itself into a ball as self-defence against predators such as the tiger. It is an insectivore feeding on ants and termites, digging them out of mounds and logs using its long claws, which are as long as its fore limbs. It is nocturnal and rests in deep burrows during the day.

<span class="mw-page-title-main">Giant pangolin</span> Species of mammal

The giant pangolin is a species of pangolins from genus Smutsia of subfamily Smutsiinae within the family Manidae. It is the largest living species of pangolins. Members of the species inhabit Africa with a range stretching along the equator from West Africa to Uganda. It subsists almost entirely on ants and termites.

<span class="mw-page-title-main">Sunda pangolin</span> Species of pangolin found in southeast Asia

The Sunda pangolin, also known as the Malayan or Javan pangolin, is a species of pangolin.

<span class="mw-page-title-main">Meller's mongoose</span> Species of mongoose from Africa

Meller's mongoose is a small brown mongoose native to savannas and woodlands of southeastern Africa. It is the only member of the genus Rhynchogale. The Meller's mongoose lives alone and is active at night, feeding on termites or other small insects and animals. While somewhat rare, it is adaptable and faces no serious threats. It is a member of the mongoose family (Herpestidae), a group of fox-like animals native to Asia, southern Europe, and Africa.

<span class="mw-page-title-main">Chinese pangolin</span> Species of mammal

The Chinese pangolin is a pangolin native to the northern Indian subcontinent, northern parts of Southeast Asia and southern China. It has been listed as Critically Endangered on the IUCN Red List since 2014, as the wild population is estimated to have declined by more than 80% in three pangolin generations, equal to 21 years. It is threatened by poaching for the illegal wildlife trade.

<span class="mw-page-title-main">Wildlife of the Democratic Republic of the Congo</span>

The wildlife of the Democratic Republic of the Congo includes its flora and fauna, comprising a large biodiversity in rainforests, seasonally flooded forests and grasslands.

<span class="mw-page-title-main">Long-tailed pangolin</span> Species of mammal

The long-tailed pangolin, also called the African black-bellied pangolin or ipi, is a diurnal, arboreal pangolin species belonging to the family Manidae, in the order Pholidota. They feed on ants rather than termites. The common names for this species stem from physical characteristics, such as the extremely long tail or the dark hairs that cover the underside of their bodies and limbs. Pangolin comes from the Malay word pengguling, meaning “something that rolls up”.

<span class="mw-page-title-main">Philippine pangolin</span> Species of pangolin

The Philippine pangolin or Palawan pangolin, also locally known as balintong, is a pangolin species endemic to the Palawan province of the Philippines. Its habitat includes primary and secondary forests, as well as surrounding grasslands. This species is moderately common within its limited range, but is at risk due to heavy hunting because of its valued scales and meat. This species is distinguished from the closely related Sunda pangolin by its smaller body-to-tail ratio, smaller scales, and a shorter head. It is listed as Critically Endangered by the IUCN, and Critically Endangered by the Palawan Council for Sustainable Development (PCSD).

<i>Phataginus</i> Genus of mammals

African tree pangolin (Phataginus) is a genus of African pangolins from subfamily small African pangolins (Phatagininae), within family Manidae. Its members are the more arboreal of the African pangolins.

<i>Smutsia</i> Genus of mammals

African ground pangolin is a genus of pangolins from subfamily Smutsiinae within family Manidae. It was formerly considered a subgenus of genus Manis. Its members are the more terrestrial of the African pangolins. In past, this genus was also present in Europe.

<span class="mw-page-title-main">Pangolin trade</span> Illegal poaching, sale and trafficking

The pangolin trade is the illegal poaching, trafficking, and sale of pangolins, parts of pangolins, or pangolin-derived products on the black market. Pangolins are believed to be the world's most trafficked mammal, accounting for as much as 20% of all illegal wildlife trade. According to the International Union for Conservation of Nature (IUCN), more than a million pangolins were poached in the decade prior to 2014.

Pangolin, sometimes known as a scaly anteater, is a mammal of the order Pholidota -one extant family, Manidae; more specifically:

References

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  2. "Appendices | CITES". cites.org. Retrieved 14 January 2022.
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  6. Rafinesque CS (1821). Ann. Sci. Phys. Brux.7: 215. (Obsolete synonyms: M. multiscutata Gray, 1843; M. tridentata Focillon, 1850).
  7. Allen and Loveridge, 1942
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