Sri Lankan leopard

Last updated

Sri Lankan leopard
Sri Lankan leopard (Panthera pardus kotiya) at Wilpattu National Park.jpg
Sri Lankan leopard in Wilpattu National Park
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Feliformia
Family: Felidae
Subfamily: Pantherinae
Genus: Panthera
Species:
Subspecies:
P. p. kotiya
Trinomial name
Panthera pardus kotiya

The Sri Lankan leopard (Panthera pardus kotiya) is a leopard subspecies native to Sri Lanka. It was first described in 1956 by Sri Lankan zoologist Paules Edward Pieris Deraniyagala. [2]

Contents

Since 2020, the Sri Lankan leopard has been listed as Vulnerable on the IUCN Red List, as the population is estimated at less than 800 mature individuals, and is probably declining. [1]

Characteristics

Female in Yala National Park Sri-lankan-leopard-yala-casey-klebba.jpg
Female in Yala National Park

The Sri Lankan leopard has a tawny or rusty yellow coat with dark spots and close-set rosettes. Seven females measured in the early 20th century averaged a weight of 64 lb (29 kg) and had a mean head-to-body-length of 1.04 m (3 ft 5 in) with a 77.5 cm (2 ft 6.5 in) long tail, the largest being 1.14 m (3 ft 9 in) with a 84 cm (2 ft 9 in) long tail; 11 males averaged 56 kg (124 lb), the largest being 77 kg (170 lb), and measured 1.27 m (4 ft 2 in) with a 86 cm (2 ft 10 in) long tail, the largest being 1.42 m (4 ft 8 in) with a 97 cm (3 ft 2 in) long tail. [3] The Sri Lankan leopard has possibly evolved to become a rather large leopard subspecies, because it is the apex predator in the country. Large males have been suggested to reach almost 100 kg (220 lb), but evidence for this is lacking. [4]

Melanistic leopards are rare. Few records exist, including from Mawuldeniya, Pitadeniya, and Nallathanniya. [5] In October 2019, the Department of Wildlife Conservation recorded live footage of a melanistic individual for the first time, a male. [6]

Distribution and habitat

The Sri Lankan leopard is still found in all habitats throughout the island in both protected and unprotected areas. [7] These habitat types can be broadly categorised into: [8]

In Sri Lanka's central hills, leopards have been recorded in forest patches, tea estates, grasslands, home gardens, and pine and eucalyptus plantations. [9]

Ecology and behaviour

Leopard attacking an Asian water buffalo calf Lankan leopard & wild water buffalo.jpg
Leopard attacking an Asian water buffalo calf

In Yala National Park, the Sri Lankan leopard as in other locations, is a solitary hunter, with the exception of females with young. Male's ranges typically overlap the smaller ranges of several females, as well as portions of the ranges of neighboring males, although exclusive core areas are apparent. They are more active and prefer hunting at night, but are also somewhat active during dawn, dusk, and daytime hours. They do not usually store their kills in trees, perhaps because similarly-sized or larger carnivores are absent in Sri Lanka. In 2001 to 2002, adult resident leopard density was estimated at 12.1 mature individuals and 21.7 individuals of all ages per 100 km2 (39 sq mi) in Block I of Yala National Park. [10]

The Sri Lankan leopard hunts by silently stalking its prey, until it is within striking distance, when it unleashes a burst of speed to quickly pursue and pounce on its victim. The prey is usually dispatched with a single bite to the throat. Like most cats, it is pragmatic in its choice of diet, which can include small mammals, birds, and reptiles, as well as larger animals. [1] Sri Lankan axis deer make up the majority of its diet in the dry zone. [10] The animal also preys on sambar, barking deer, wild boar, and monkeys. [11]

No birth season or peak is apparent, with births occur across the year. [10] Its lifespan ranges from 12 to 15 years in the wild, and up to 22 years in captivity. [12]

The leopard is sympatric with the Sri Lankan sloth bear. [13] [14]

Threats

The survival of the Sri Lankan leopard is primarily threatened by increasing habitat loss and fragmentation, together with an increasing risk of human-induced mortality. Leopards are killed by people either accidentally in wire snares set for other species, or as retaliation after livestock depredation (usually through poisoning the livestock carcass). They are also occasionally shot. Since 2010, over 90 leopards are known to have been killed by people in Sri Lanka. [1]

Three individuals were killed by snare traps in the Sinharaja conservation area, one of which is stuffed and displayed at the Giritale Wildlife Museum. [15] In May 2020, the melanistic leopard filmed in 2019 was found caught in a snare at the Lakshapana Estate in Nallathanniya, Hatton. Later, it was transported to Elephant Transit Home in Udawalawa for treatment, where it died. The snare had heavily injured its neck. [16] [17] Even in large, contiguous protected areas, human encroachment in the border areas is impacting leopard distribution and reducing the effective size of these protected areas. [18]

Conservation

Ongoing research into the Sri Lankan leopard is needed to ensure that conservation measures are targeted and effective. The Leopard Project under the Wilderness and Wildlife Conservation Trust (WWCT), founded by Anjali Watson, [19] and Dr. Andrew Kittle is working closely with the Government of Sri Lanka to ensure this occurs. The Sri Lanka Wildlife Conservation Society will also undertake some studies. The WWCT is engaged throughout the island with targeted work ongoing in the central hills region where fragmentation of the leopard's habitat is rapidly occurring. [20]

In captivity

As of December 2011, 75 captive Sri Lankan leopards were in zoos worldwide. Within the European Endangered Species Programme, 27 male, 29 female and 8 unsexed individuals are kept. [21]

See also

Related Research Articles

<span class="mw-page-title-main">Jaguar</span> Large cat native to the Americas

The jaguar is a large cat species and the only living member of the genus Panthera native to the Americas. With a body length of up to 1.85 m and a weight of up to 158 kg (348 lb), it is the biggest cat species in the Americas and the third largest in the world. Its distinctively marked coat features pale yellow to tan colored fur covered by spots that transition to rosettes on the sides, although a melanistic black coat appears in some individuals. The jaguar's powerful bite allows it to pierce the carapaces of turtles and tortoises, and to employ an unusual killing method: it bites directly through the skull of mammalian prey between the ears to deliver a fatal blow to the brain.

A black panther is the melanistic colour variant of the leopard and the jaguar. Black panthers of both species have excess black pigments, but their typical rosettes are also present. They have been documented mostly in tropical forests, with black leopards in Africa and Asia, and black jaguars in South America. Melanism is caused by a recessive allele in the leopard, and by a dominant allele in the jaguar.

<span class="mw-page-title-main">Leopard</span> Large cat native to Africa and Asia

The leopard is one of the five extant species in the genus Panthera. It has a pale yellowish to dark golden fur with dark spots grouped in rosettes. Its body is slender and muscular reaching a length of 92–183 cm (36–72 in) with a 66–102 cm (26–40 in) long tail and a shoulder height of 60–70 cm (24–28 in). Males typically weigh 30.9–72 kg (68–159 lb), and females 20.5–43 kg (45–95 lb).

<span class="mw-page-title-main">Bengal tiger</span> Tiger population on the Indian subcontinent

The Bengal tiger is a population of the Panthera tigris tigris subspecies and the nominate tiger subspecies. It ranks among the biggest wild cats alive today. It is considered to belong to the world's charismatic megafauna.

<span class="mw-page-title-main">Rusty-spotted cat</span> Small wild cat

The rusty-spotted cat is one of the cat family's smallest members, of which historical records are known only from India and Sri Lanka. In 2012, it was also recorded in the western Terai of Nepal. Since 2016, the global wild population is listed as Near Threatened on the IUCN Red List as it is fragmented and affected by loss and destruction of its prime habitat, deciduous forests.

<span class="mw-page-title-main">Siberian tiger</span> Tiger population in Northeast Asia

The Siberian tiger or Amur tiger is a population of the tiger subspecies Panthera tigris tigris native to the Russian Far East, Northeast China and possibly North Korea. It once ranged throughout the Korean Peninsula, but currently inhabits mainly the Sikhote-Alin mountain region in southwest Primorye Province in the Russian Far East. In 2005, there were 331–393 adult and subadult Siberian tigers in this region, with a breeding adult population of about 250 individuals. The population had been stable for more than a decade because of intensive conservation efforts, but partial surveys conducted after 2005 indicate that the Russian tiger population was declining. An initial census held in 2015 indicated that the Siberian tiger population had increased to 480–540 individuals in the Russian Far East, including 100 cubs. This was followed up by a more detailed census which revealed there was a total population of 562 wild Siberian tigers in Russia. As of 2014, about 35 individuals were estimated to range in the international border area between Russia and China.

<span class="mw-page-title-main">Yala National Park</span> National park in Sri Lanka

Yala (යාල) National Park is the most visited and second largest national park in Sri Lanka, bordering the Indian Ocean. The park consists of five blocks, three of which are now open to the public. There are also two adjoining parks, Kumana National Park or 'Yala East' and Lunugamvehera National Park. The blocks have individual names, such as Palatupana. It is situated in the southeastern region of the country, in the Southern Province and Uva Province. The park covers 979 square kilometres (378 sq mi) and is located about 300 kilometres (190 mi) from Colombo. Yala was designated as a wildlife sanctuary in 1900, along with Wilpattu, designated in 1938, as the first two designated national parks in Sri Lanka. The park is best known for its variety of wildlife and is important conservation of Sri Lankan elephants, Sri Lankan leopards and aquatic birds.

<span class="mw-page-title-main">Malayan tiger</span> Tiger population in Malayan Peninsula

The Malayan tiger is a tiger from a specific population of the Panthera tigris tigris subspecies that is native to Peninsular Malaysia. This population inhabits the southern and central parts of the Malay Peninsula and has been classified as nationally critically endangered. As of April 2014, the population was estimated at 80 to 120 mature individuals with a continuous declining trend.

<span class="mw-page-title-main">African leopard</span> Leopard subspecies

The African leopard is the nominate subspecies of the leopard, native to many countries in Africa. It is widely distributed in most of sub-Saharan Africa, but the historical range has been fragmented in the course of habitat conversion. Leopards have also been recorded in North Africa as well.

<span class="mw-page-title-main">Arabian leopard</span> Subspecies of mammals

The Arabian leopard is the smallest leopard subspecies. It was described in 1830 and is native to the Arabian Peninsula, where it was widely distributed in rugged hilly and montane terrain until the late 1970s. Today, the population is severely fragmented and thought to decline continuously, with an estimated 45–200 individuals as of 2008 in three isolated subpopulations that are restricted to western Saudi Arabia, Oman and Yemen.

<span class="mw-page-title-main">Indian leopard</span> Leopard subspecies

The Indian leopard is a subspecies of the leopard that is widely distributed on the Indian subcontinent and is threatened by illegal trade of skins and body parts, and persecution due to human-leopard conflict and livestock depredation. A national census of leopards around tiger habitats was carried out in India in 2014, except the northeast. 7,910 individuals were estimated in surveyed areas and a national total of 12,000–14,000 speculated.

<span class="mw-page-title-main">Zanzibar leopard</span> Leopard population in Zanzibar

The Zanzibar leopard is an African leopard population on Unguja Island in the Zanzibar archipelago, Tanzania, that is considered extirpated due to persecution by local hunters and loss of habitat. It was the island's largest terrestrial carnivore and apex predator. Increasing conflict between people and leopards in the 20th century led to the demonization of the Zanzibar leopard and determined attempts to exterminate it. Efforts to develop a leopard conservation program in the mid-1990s were shelved when wildlife researchers concluded that there was little prospect for the population's long-term survival. In 2018, a leopard was recorded by a camera trap, thus renewing hopes for the population's survival, although some experts remain skeptical.

<i>Panthera pardus tulliana</i> Leopard subspecies

Panthera pardus tulliana is a leopard subspecies native to the Iranian Plateau and surrounding areas encompassing Turkey, the Caucasus, Azerbaijan, Georgia, Armenia, Iraq, Iran, Turkmenistan, Afghanistan and possibly Pakistan. Since 2016, it has been listed as Endangered on the IUCN Red List, as the wild population is estimated at less than 1,000 mature individuals.

<span class="mw-page-title-main">Parc des Félins</span> Zoo in France

Parc des Félins is a zoological park in France dedicated to the breeding and conservation of wild members of the cat family. It is located in the commune of Lumigny-Nesles-Ormeaux in Seine-et-Marne, about 53.6 km (33.3 mi) southeast of Paris.

<span class="mw-page-title-main">Snow leopard</span> Species of large felid

The snow leopard, commonly known as the ounce, is a species of large cat in the genus Panthera of the family Felidae. The species is native to the mountain ranges of Central and South Asia. It is listed as Vulnerable on the IUCN Red List because the global population is estimated to number fewer than 10,000 mature individuals and is expected to decline about 10% by 2040. It is mainly threatened by poaching and habitat destruction following infrastructural developments. It inhabits alpine and subalpine zones at elevations of 3,000–4,500 m (9,800–14,800 ft), ranging from eastern Afghanistan, the Himalayas and the Tibetan Plateau to southern Siberia, Mongolia and western China. In the northern part of its range, it also lives at lower elevations.

<span class="mw-page-title-main">Wilpattu National Park</span> National park in Sri Lanka

Wilpattu National Park is a national park in Sri Lanka. The unique feature of this park is the existence of "Willus" – natural, sand-rimmed water basins or depressions that fill with rainwater. Located on the northwest coast lowland dry zone of Sri Lanka, the park is 30 km (19 mi) west of Anuradhapura and 26 km (16 mi) north of Puttalam. The park is 1,317 km2 (508 sq mi) in area and ranges from 0–152 m (0–499 ft) above sea level. Nearly one hundred and six lakes (Willu) and tanks are found spread throughout Wilpattu. Wilpattu is the largest and one of the oldest national parks in Sri Lanka. Wilpattu is world-renowned for its leopard population. A remote camera survey conducted in Wilpattu from July to October 2015 by the Wilderness and Wildlife Conservation Trust captured photographs of forty-nine individual leopards in the surveyed area, the core area density of which was between that of Yala National Park's Block I and Horton Plains National Park.

<span class="mw-page-title-main">Javan leopard</span> Subspecies of leopard

The Javan leopard is a leopard subspecies confined to the Indonesian island of Java. It has been listed as Endangered on the IUCN Red List since 2021. The population is estimated at 188–571 mature individuals in 22 fragmented subpopulations and a declining population trend. The total remaining habitat is estimated at only 2,267.9 to 3,277.3 km2.

<span class="mw-page-title-main">Amur leopard</span> Leopard subspecies in Far East Asia

The Amur leopard is a leopard subspecies native to the Primorye region of southeastern Russia and northern China. It is listed as Critically Endangered on the IUCN Red List, as in 2007, only 19–26 wild leopards were estimated to survive in southeastern Russia and northeastern China.

<span class="mw-page-title-main">Indochinese leopard</span> Leopard subspecies

The Indochinese leopard is a leopard subspecies native to mainland Southeast Asia and southern China. In Indochina, leopards are rare outside protected areas and threatened by habitat loss due to deforestation as well as poaching for the illegal wildlife trade. The population trend is suspected to be decreasing. As of 2016, the population is thought to comprise 973–2,503 mature individuals, with only 409–1,051 breeding adults. The historical range has decreased by more than 90%.

<span class="mw-page-title-main">Anjali Watson</span> Sri Lankan conservationist

Anjali Watson is a Sri Lankan conservationist. She is known for her contributions to leopard conservation and founded the Wilderness and Wildlife Conservation Trust, a conservation and research organisation.

References

  1. 1 2 3 4 Kittle, A.M. & Watson, A. (2020). "Panthera pardus ssp.kotiya". IUCN Red List of Threatened Species . 2020: e.T15959A50660847.
  2. Deraniyagala, P. E. P. (1956). "The Ceylon leopard, a distinct subspecies". Spolia Zeylanica. 28: 115–116.
  3. Pocock, R.I. (1939). "Panthera pardus (Linnaeus). The Leopard or Panther". The Fauna of British India, including Ceylon and Burma. Vol. Mammalia. London: Taylor and Francis. pp. 222–231.
  4. "Yala's giant leopards". BBC Earth. 2014. Retrieved 2018-01-16.
  5. "Black Panther rediscovered in SLA". Daily News. Retrieved 2020-05-31.
  6. "Rare Black Panther Rediscovered In Sri Lanka". iflscience. Retrieved 2020-05-31.
  7. Kittle, A.M.; Watson, A.; Cushman, S.A.; Macdonald, D.W. (2018). "Forest cover and level of protection influence the island-wide distribution of an apex carnivore and umbrella species, the Sri Lankan leopard (Panthera pardus kotiya)". Biodiversity & Conservation. 27: 235–263. doi:10.1007/s10531-017-1431-8. S2CID   22699049.
  8. Phillips, W. W. A. (1984). Manual of the mammals of Sri Lanka. Vol. Part III (Second revised ed.). Colombo: Wildlife and Nature Protection Society of Sri Lanka.
  9. Kittle, A. M.; Watson, A. C.; Chanaka Kumara, P. H.; Nimalka Sanjeewani, H. K. (2014). "Status and distribution of the leopard in the central hills of Sri Lanka". Cat News. 56: 28−31.
  10. 1 2 3 Kittle, A.M.; Watson, A.C.; Fernando, T.S.P. (2017). "The ecology and behaviour of a protected area Sri Lankan leopard (Panthera pardus kotiya) population". Tropical Ecology. 58: 71–86.
  11. Kittle, A. M.; Watson, A. C.; Kumara, P. H. C.; Sandanayake, S. D. K.; Sanjeewani, H. K. N.; Fernando, S. (2014). "Notes on the diet, prey and habitat selection of the Sri Lankan leopard in the central highlands of Sri Lanka". Journal of Threatened Taxa. 6 (9): 6214–6221. doi: 10.11609/jott.o3731.6214-21 .
  12. "Sri Lankan Leopard | Mammals in Sri Lanka | Dilmah Conservation". www.dilmahconservation.org. Retrieved 2020-12-25.
  13. Hadley, B. (2008). The Sloth Bear (PDF). IUCN/SSC Bear Specialist Group. Archived from the original (PDF) on 2008-12-21.
  14. Brown, G. (1993). The Great Bear Almanac . Lyons & Burford. ISBN   1558212108.
  15. "SL Black Leopard not extinct; spotted again". Daily Mirror. Retrieved 2020-05-31.
  16. "Rescued black leopard dies; wildlife officials yet to determine cause of death". Economy Next. 29 May 2020. Retrieved 2020-05-31.
  17. "Rare Black Leopard recently rescued from a snare dies". News First. 29 May 2020. Retrieved 2020-05-31.
  18. Kittle, A.M.; Watson, A.C.; Samaranayake, P.K.L. (2021). "Edge effects and distribution of prey forage resources influence how an apex predator utilizes Sri Lanka's largest protected area". Journal of Zoology. 314: 31–42. doi:10.1111/jzo.12870. S2CID   234011936.
  19. Sarah Lazarus and Jon Jensen (15 January 2020). "Sri Lanka's leopards are under threat, but this woman is determined to save them". CNN. Retrieved 2021-01-17.
  20. Kittle, A. M.; Watson, A. C.; Fernando, S. (2012). "Notes on the status, distribution and abundance of the Sri Lankan leopard in the central hills of Sri Lanka". Cat News (56).
  21. International Species Information System (2011). "ISIS Species Holdings: Panthera pardus kotiya, December 2011".