Bromo Tengger Semeru National Park
Encyclopedia
Bromo Tengger Semeru National Park is located in East Java
East Java
East Java is a province of Indonesia. It is located on the eastern part of the island of Java and includes neighboring Madura and islands to its east and to its north East Java is a province of Indonesia. It is located on the eastern part of the island of Java and includes neighboring Madura and...

, Indonesia, to the east of Malang
Malang
Malang is the second largest city in East Java province, Indonesia. It has an ancient history dating back to the Mataram Kingdom. The city population at the 2010 Census was 819,708. During the period of Dutch colonization, it was a popular destination for European residents. The city is famous for...

 and to the southeast of Surabaya
Surabaya
Surabaya is Indonesia's second-largest city with a population of over 2.7 million , and the capital of the province of East Java...

, the capital of East Java. It is the only conservation area in Indonesia that has a sand sea, the Tengger Sand Sea , across which is the caldera
Caldera
A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption, such as the one at Yellowstone National Park in the US. They are sometimes confused with volcanic craters...

 of an ancient volcano (Tengger) from which four new volcanic cones have emerged. This unique feature covers a total area of 5,250 hectares at an altitude of about 2,100 m. The massif also contains the highest mountain in Java, Mount Semeru (3,676 m), four lakes and 50 rivers.

The Tengger Sand Sea has been protected since 1919. The Bromo Tengger Semeru National Park was declared a national park in 1982.

Volcanism

The volcanic complex of Tengger forms a condition where a new caldera of volcano forms inside a larger and more ancient caldera. There are five volcanoes inside the Tengger Caldera: Mount Bromo
Mount Bromo
Mount Bromo , is an active volcano and part of the Tengger massif, in East Java, Indonesia. At it is not the highest peak of the massif, but is the most well known. The massif area is one of the most visited tourist attractions in East Java, Indonesia. The volcano belongs to the Bromo Tengger...

 (2,329 m), Mount Batok (2,470 m), Mount Kursi (2,581 m), Mount Watangan (2,661 m), and Mount Widodaren (2,650 m). Mount Batok is the only peak that is no longer active, and is covered in casuarina
Casuarina
Casuarina is a genus of 17 species in the family Casuarinaceae, native to Australasia, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera .They are evergreen shrubs and trees growing to 35 m tall...

  trees. Mount Widodaren, located beside Mount Batok, contains the cave Widodaren, which is considered sacred by local people.
The five volcanoes within the caldera are surrounded by a vast area of sand called the Tengger Sand Sea, which in turn is surrounded by a steep crater wall of the larger Tengger Caldera with height differences of about 200–600 meters. Other mountains around the Tengger caldera are: Mount Pananjakan (2,770 m) Mount Cemorolawang (2,227 m), Mount Lingker (2,278 m), Mount Pundak Lembu (2,635 m), Mount Jantur (2,705 m), Mount Ider-ider (2,527 m) and Mount Mungal (2,480 m). The peak of Mount Pananjakan is the most popular place to watch the entire volcanic complex of Tengger.

Further south in the national park, there is another volcanic complex called the Semeru Group or Jambangan Group. This area contains the highest peak of Java, Mount Semeru (3,676 m). Other mountains within this area are Mount Lanang (2,313 m), Mount Ayek-ayek (2,819 m), Mount Pangonan Cilik (2,833 m), Mount Keduwung (2,334 m), Mount Jambangan (3,020 m), Mount Gentong (1,951 m), Mount Kepolo (3,035 m), and Mount Malang (2,401 m). The Semeru forest area has many rivers that are former lava lines from Mount Semeru. The Semeru group is considered to be very productive, producing volcanic matters such as lava
Lava
Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. When first erupted from a volcanic vent, lava is a liquid at...

, volcanic ash
Volcanic ash
Volcanic ash consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions, less than in diameter. There are three mechanisms of volcanic ash formation: gas release under decompression causing magmatic eruptions; thermal contraction from chilling on contact...

, and hot cloud and spreading it to the surrounding area. The lower area is surrounded with fertile rice fields.

Ecosystem

According to height and temperature differences, the forests within the area can be classified into three zones:

Sub-montane zone (750–1,500 m)

This zone is classified as a tropical rainforest. It can be found in the southern area of Semeru, East Semeru (Burno), and West Semeru (Patok Picis).
This zone is dominated with plants of the family Fagaceae
Fagaceae
The family Fagaceae, or beech family, comprises about 900 species of both evergreen and deciduous trees and shrubs, which are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like nuts. Fagaceous leaves are often...

, Moraceae
Moraceae
Moraceae — often called the mulberry family or fig family — are a family of flowering plants comprising about 40 genera and over 1000 species. Most are widespread in tropical and subtropical regions, less so in temperate climates...

, Anacardiaceae
Anacardiaceae
Anacardiaceae are a family of flowering plants bearing fruits that are drupes and in some cases producing urushiol, an irritant. Anacardiaceae include numerous genera with several of economic importance. Notable plants in this family include cashew , mango, poison ivy, sumac, smoke tree, and marula...

, Sterculiaceae
Sterculiaceae
Sterculiaceae is a botanical name for a group of flowering plants at the rank of family, which is now considered obsolete. As is true for any botanical name, the circumscription, status and placement of the taxon has varied with taxonomic point of view...

, and Rubiaceae
Rubiaceae
The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...

. There are also liana trees, such as a variety from the genus Calamus, Piper
Piper (genus)
Piper, the pepper plants or pepper vines , are an economically and ecologically important genus in the family Piperaceae...

, Asplenium
Asplenium
Asplenium is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider Hymenasplenium separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes...

, and Begonia
Begonia
Begonia is a genus in the flowering plant family Begoniaceae and is a perennial. The only other members of the family Begoniaceae are Hillebrandia, a genus with a single species in the Hawaiian Islands, and the genus Symbegonia which more recently was included in Begonia...

, and other plants from the family Araceae
Araceae
Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe or leaf-like bract. Also known as the Arum family, members are often colloquially...

, Poaceae
Poaceae
The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...

, and Zingiberaceae
Zingiberaceae
Zingiberaceae, or the Ginger family, is a family of flowering plants consisting of aromatic perennial herbs with creeping horizontal or tuberous rhizomes, comprising ca. 52 genera and more than 1300 species, distributed throughout tropical Africa, Asia, and the Americas.Many species are important...

. There are also 225 species of orchid in this area.

Montane zone (1,500–2,440 m)

Plant life is greatly reduced in this area. Most of the species that grow in this area are pioneer species
Pioneer species
Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the first organisms to start the chain of events leading to a livable biosphere or ecosystem...

. There are also some wooden plants such as cemara (Casuarina
Casuarina
Casuarina is a genus of 17 species in the family Casuarinaceae, native to Australasia, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera .They are evergreen shrubs and trees growing to 35 m tall...

 junghuhniana
), mentinggi gunung (Vaccinium
Vaccinium
Vaccinium is a genus of shrubs or dwarf shrubs in the plant Family Ericaceae. The fruit of many species are eaten by humans and some are of commercial importance, including the cranberry, blueberry, bilberry or whortleberry, lingonberry or cowberry, and huckleberry...

 varingifolium
), kemlandingan gunung (Albizia lophantha), acacia bark (Acacia decurrens
Acacia decurrens
Acacia decurrens is a perennial tree or shrub native to eastern New South Wales...

) and bottom plants such as Javanese Edelweiss or Senduro (Anaphalis longifongila and Anaphalis javanica
Anaphalis javanica
Anaphalis javanica or Javanese Edelweiss is a flowering plant species endemic to Indonesia. They are found mostly in mountainous regions of Java, southern Sumatra, southern Sulawesi and Lombok. Although a mature plant can reach eight metres in height, most specimens are less than a metre tall. The...

), (Imperata cylindrica, Pteris sp., Themeda
Themeda
Themeda is a genus of plants of the family Poaceae.-Selected species:* Themeda anathera* Themeda arguens Hack.* Themeda arundinacea* Themeda avanacea* Themeda ciliata* Themeda forskalii* Themeda frondosa...

 sp. and Centella asiatica
Centella asiatica
Centella asiatica is a small herbaceous annual plant of the family Mackinlayaceae or subfamily Mackinlayoideae of family Apiaceae, and is native to India, Sri Lanka, northern Australia, Indonesia, Iran, Malaysia, Melanesia, Papua New Guinea, and other parts of Asia...

.

The Tengger Sand Sea in Tengger Caldera is a special ecosystem. The area is covered in volcanic sedimentation of sand from Mount Bromo activities. The resulting area is believed to be the only known desert-like area in Indonesia. The Tengger Sand Sea has been protected since 1919.

Subalpine zone (above 2,400 m)

The flora that cover this area are mentinggi gunung (Vaccinium
Vaccinium
Vaccinium is a genus of shrubs or dwarf shrubs in the plant Family Ericaceae. The fruit of many species are eaten by humans and some are of commercial importance, including the cranberry, blueberry, bilberry or whortleberry, lingonberry or cowberry, and huckleberry...

 varingifolium
) and cemara (Casuarina
Casuarina
Casuarina is a genus of 17 species in the family Casuarinaceae, native to Australasia, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera .They are evergreen shrubs and trees growing to 35 m tall...

 junghuhniana
). Kemlandingan gunung (Albizia lophantha) and Javanese Edelweiss can also be found growing in this zone.
On Mount Semeru, there is no plant life above the altitude of 3,100 m. This zone is covered in loose sandstones.

Flora and fauna

Some endangered flora are protected in this park, such as Fagaceae
Fagaceae
The family Fagaceae, or beech family, comprises about 900 species of both evergreen and deciduous trees and shrubs, which are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like nuts. Fagaceous leaves are often...

, Moraceae
Moraceae
Moraceae — often called the mulberry family or fig family — are a family of flowering plants comprising about 40 genera and over 1000 species. Most are widespread in tropical and subtropical regions, less so in temperate climates...

, Sterculiaceae
Sterculiaceae
Sterculiaceae is a botanical name for a group of flowering plants at the rank of family, which is now considered obsolete. As is true for any botanical name, the circumscription, status and placement of the taxon has varied with taxonomic point of view...

, Casuarina
Casuarina
Casuarina is a genus of 17 species in the family Casuarinaceae, native to Australasia, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera .They are evergreen shrubs and trees growing to 35 m tall...

 junghuhniana
, Javanese Edelweiss, and about 200 species of endemic orchids.

There is a relatively small diversity of fauna in the Bromo Tengger Semeru National Park. There are about 137 species of birds, 22 species of mammals and 4 species of reptiles protected in the national park. Examples are Besra
Besra
The Besra, Accipiter virgatus, is a bird of prey in the family Accipitridae.The Besra is a widespread resident breeder in dense forests throughout south Asia from Pakistan and India to south China and Indonesia. It nests in trees, building a new nest each year...

, Green Peafowl
Green Peafowl
The Green Peafowl or Javan Peafowl, Pavo muticus is a large Galliform bird that is found in the tropical forests of Southeast Asia...

, Javan Rusa, Dhole
Dhole
The dhole is a species of canid native to South and Southeast Asia. It is the only extant member of the genus Cuon, which differs from Canis by the reduced number of molars and greater number of teats...

, Crab-eating Macaque
Crab-eating Macaque
The Crab-eating macaque is a cercopithecine primate native to Southeast Asia. It is also called the "long-tailed macaque", and is referred to as the "cynomolgus monkey" in laboratories.-Etymology:...

, Marbled cat
Marbled Cat
The Marbled Cat is a small wild cat of South and Southeast Asia. Since 2002 it has been listed as vulnerable by IUCN as it occurs at low densities, and its total effective population size is suspected to be fewer than 10,000 mature individuals, with no single population numbering more than...

 and Leopard
Leopard
The leopard , Panthera pardus, is a member of the Felidae family and the smallest of the four "big cats" in the genus Panthera, the other three being the tiger, lion, and jaguar. The leopard was once distributed across eastern and southern Asia and Africa, from Siberia to South Africa, but its...

.

Culture

The area in and around the park is inhabited by the Tengger
Tenggerese
The Tenggerese are the descendants of the Majapahit princes. Their population of roughly 600,000 is centered in thirty villages in the isolated Tengger mountains within the Bromo Tengger Semeru National Park in East-Central Java....

 people, one of the few significant Hindu communities remaining on the island of Java. The local religion is a remnant from the Majapahit era and therefore quite similar to that on Bali
Bali
Bali is an Indonesian island located in the westernmost end of the Lesser Sunda Islands, lying between Java to the west and Lombok to the east...

 but with even more animist elements. The Tengger people are believed to be descendents of the Majapahit empire and were driven into the hills after mass arrival in the area of Muslim Madurese
Madura
Madura is an Indonesian island off the northeastern coast of Java. The island comprises an area of approximately 4,250 km². Madura is administered as part of the East Java province. It is separated from Java by the narrow Strait of Madura.-History:...

 in the 19th century.

See also

  • List of national parks of Indonesia
  • Geography of Indonesia
    Geography of Indonesia
    Indonesia is an archipelagic island country in Southeast Asia, lying between the Indian Ocean and the Pacific Ocean. It is in a strategic location astride or along major sea lanes from Indian Ocean to Pacific Ocean. The country's variations in culture have been shaped—although not...



External links

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