The Javan leopard (''Panthera pardus melas'') is a
leopard
The leopard (''Panthera pardus'') is one of the five extant species in the genus '' Panthera'', a member of the cat family, Felidae. It occurs in a wide range in sub-Saharan Africa, in some parts of Western and Central Asia, Southern Russia ...
subspecies confined to the
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
n island of
Java
Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mo ...
. It has been listed as
Endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
on the
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...
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 .
Characteristics
The Javan leopard was initially described as a
black panther
A black panther is the melanistic colour variant of the leopard (''Panthera pardus'') and the jaguar (''Panthera onca''). Black panthers of both species have excess black pigments, but their typical rosettes are also present. They have been ...
with dark black spots and silver-grey eyes.
It has either a normal spotted coat with rosettes, or a recessive
phenotype
In genetics, the phenotype () is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological prop ...
Gunung Gede Pangrango National Park
Mount Gede Pangrango National Park is a national park in West Java, Indonesia. The park is centred on two volcanoes— Mount Gede and Mount Pangrango—and is 150 km² in area.
It evolved from already existing conservation areas, such as ...
, Ceremai National Park, Merbabu National Park, Merapi National Park,
Bromo Tengger Semeru National Park
Bromo Tengger Semeru National Park ( id, Taman Nasional Bromo Tengger Semeru; abbreviated as ) is a national park located in East Java, Indonesia, to the east of Malang and Lumajang, to the south of Pasuruan and Probolinggo, and to the sout ...
tropical rainforest
Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equatori ...
to dry
deciduous forest
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, af ...
s. Outside protected areas, it was recorded in
secondary forest
A secondary forest (or second-growth forest) is a forest or woodland area which has re-grown after a timber harvest or clearing for agriculture, until a long enough period has passed so that the effects of the disturbance are no longer evident. ...
, mixed
agriculture
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peop ...
and
production forest
Production may refer to:
Economics and business
* Production (economics)
* Production, the act of manufacturing goods
* Production, in the outline of industrial organization, the act of making products (goods and services)
* Production as a sta ...
between 2008 and 2014.
In the 1990s, it survived in the seral stages of successional vegetation patterns, which made it less susceptible to humans' disruptive activities than many other mammals.
From 2001 to 2004, monitoring research has been conducted in a area of Gunung Halimun National Park using camera traps and radio tracking. Seven leopards were identified in the study area. The total population was estimated at 42 to 58 individuals. The home range of an adult female averaged .Harahap, S., Sakaguchi, H. (2005). ''Ecological research and conservation of the Javan Leopard ''Panthera pardus melas'' in Gunung Halimun National Park, West Java, Indonesia''. In The wild cats: ecological diversity and conservation strategy The 21st Century Center of Excellence Program International Symposium. Okinawa, Japan.
Ecology and behavior
The Javan leopard's prey comprises
barking deer
Barking may refer to:
Places
* Barking, London, a town in East London, England
** London Borough of Barking and Dagenham, a local government district covering the town of Barking
** Municipal Borough of Barking, a historical local government di ...
,
wild boar
The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is ...
crab-eating macaque
The crab-eating macaque (''Macaca fascicularis''), also known as the long-tailed macaque and referred to as the cynomolgus monkey in laboratories, is a cercopithecine primate native to Southeast Asia. A species of macaque, the crab-eating macaqu ...
, silvery lutung, and Javan gibbon. Javan leopards also look for food in close by villages and have been known to prey on domestic dogs, chickens, and goats.
Two leopards were radio collared in the Gunung Halimun National Park. Their daily activity pattern showed peaks in the early mornings between 6:00 and 9:00, and late afternoons between 15:00 and 18:00.
Threats
The Javan leopard is threatened by loss of habitat, prey base depletion, and
poaching
Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights.
Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set ag ...
due to human population growth and agricultural expansion. Conflict between local people and leopards is also considered to be a main threat to the Javan leopard.
Java has lost more than 90% of its natural vegetation and is one of the most densely populated islands in the world. Primary forests remain only in the mountainous regions at elevations above .
Conservation
''Panthera pardus melas'' is listed in the CITES Appendix I.
Efforts are being made to restore the Javan leopard population and prevent its extinction. Hunting laws are strictly enforced. In 2005, Gunung Halimun National Park was enlarged to three times its original size for the protection of the Javan leopard, the silvery gibbon (''Hylobates moloch''), and the
Javan hawk-eagle
The Javan hawk-eagle (''Nisaetus bartelsi'') is a medium-sized, dark brown raptor in the family Accipitridae. It is the national bird of Indonesia, where it is commonly referred to as Garuda, from the bird-like creatures in Hindu and Buddhist my ...
(''Nisaetus bartelsi'').
To address the issue of Java's overpopulation and encroachment on habitat of protected species, the Indonesian government has formed a nationwide family planning program. This program makes contraceptive devices like condoms and several different forms of birth control pills more readily available to the public.
In captivity
In 1997, 14 Javan leopards were kept in European zoos. The Javan leopard is not specifically managed in captive breeding programs in Europe and America. As of 2007, the Taman Safari Zoo in
Bogor
Bogor ( su, , nl, Buitenzorg) is a city in the West Java province, Indonesia. Located around south of the national capital of Jakarta, Bogor is the 6th largest city in the Jakarta metropolitan area and the 14th overall nationwide.Ragunan, Taman Safari and Surabaya Zoo also keep Javan leopards.
As of December 2011, two male and one female Javan leopard were kept in Tierpark Berlin,
Germany
Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...
; and one male and one female in the Jakarta Zoo.
In 2013, one male Javan leopard was transferred from Tierpark Berlin to the Prague Zoo.
Evolution
Morphological research indicates that the Javan leopard is craniometrically distinct from other Asian leopard subspecies, and is a distinct
taxon
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular n ...
that split off from other Asian leopard subspecies in the
Middle Pleistocene
The Chibanian, widely known by its previous designation of Middle Pleistocene, is an Age (geology), age in the international geologic timescale or a Stage (stratigraphy), stage in chronostratigraphy, being a division of the Pleistocene Epoch withi ...
about 800,000 years ago. In the Middle Pleistocene, it may have migrated to Java from South Asia across a land bridge that bypassed Sumatra and Borneo.
Zanzibar leopard
The Zanzibar leopard is an African leopard (''Panthera pardus pardus'') 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 ...