Parts of the world Oceania. Peculiarities of the nature of Oceania. Climatic features of Oceania

Oceania is the name of a region of the world consisting of island groups in the central and southern part Pacific Ocean. It covers more than 8.5 million km². Some of the countries that make up Oceania include Australia, New Zealand, Tuvalu, Samoa, Tonga, Papua New Guinea, Solomon Islands, Vanuatu, Fiji, Palau, Micronesia, Marshall Islands, Kiribati and Nauru. Oceania also includes several dependent territories such as American Samoa, Johnston and French Polynesia.

Physical geography of Oceania

In terms of physical geography, the islands of Oceania are often divided into four different subregions based on the geological processes that played an important role in their physical development. The first one is. It stands out due to its location in the middle of the Indo-Australian plate, and the lack of mountain building during its development. Instead, the current physical features of Australia's landscape have been shaped primarily by erosion.

The second region of Oceania consists of islands located at the boundaries of the collision between the plates of the earth's crust. They are located in the South Pacific Ocean. For example, on the collision line of the Indo-Australian and Pacific plates, and includes places such as New Zealand, Papua New Guinea and Solomon Islands. The North Pacific also has similar types of landscapes along the boundary of the Eurasian and Pacific plates. Colliding tectonic plates are responsible for the formation of mountains, such as those in New Zealand, that rise more than 3,000 m above sea level.

Volcanic islands such as Fiji are the third category of landscape type found in Oceania. These islands typically rise from the seabed in hot spots in the Pacific Ocean basin. Most of these areas consist of very small islands with high mountain ranges.

Finally, island coral reefs and atolls such as Tuvalu are the final type of landscape in Oceania. Atolls are specifically responsible for the formation of low-lying land areas, some with enclosed lagoons.

Oceania Climate

Climate map of Oceania according to Köppen

Most of Oceania is divided into two climatic zones: temperate and. Most of Australia and all of New Zealand are in the temperate zone, while most of the Pacific islands are considered tropical. Temperate regions of Oceania have high rainfall levels, cold winters and warm to hot summers. The tropical regions of Oceania are hot and humid all year round.

In addition to these climate zones, most countries in Oceania are subject to continuous trade winds and sometimes hurricanes (called tropical cyclones), which have historically caused catastrophic damage to the region's countries and islands.

Flora and fauna of Oceania

Because most of Oceania lies in the tropical or temperate climate zone, abundant rainfall helps support the growth of tropical and temperate rainforests throughout the region. Wet tropical forests common in some island countries near the tropics, while temperate rainforests are found in New Zealand. Both types of forest support a variety of animal and plant species, making Oceania one of the most biologically diverse regions in the world.

It is important to note that not all areas of Oceania receive high rainfall and some parts of the region are arid or semi-arid. Australia, for example, has large areas of dry land that support little diversity of flora. In addition, El Niño has caused frequent droughts in recent decades in Northern Australia and Papua New Guinea.

The fauna of Oceania, like its flora, is also extremely beautiful. Because much of the region is made up of islands, unique species of birds, animals and insects have evolved in complete isolation. Presence of coral reefs such as the Great barrier reef and Kingman Reef also provide areas of high concentrations of flora and fauna and are considered biodiversity hotspots.

Population of Oceania

Oceania has a population of about 40 million, with the bulk of the people (about 30 million) living in Australia and New Zealand, while Papua New Guinea has a population of about 8 million. The remainder of Oceania's population is scattered across the various islands that make up the region.

Like population distribution, urbanization and industrialization are also unevenly distributed across Oceania. About 89% of the region's urban areas are in Australia and New Zealand, and these countries also have the best developed infrastructure. Australia, in particular, has reserves of many minerals and energy feedstocks, and generates much of the region's economy. The rest of Oceania and, in particular, the Pacific island states are very underdeveloped. Some islands are rich, but most are not. In addition, some of the island countries are experiencing shortages of clean drinking water or food.

Agriculture is also important in Oceania and there are three types that are common in the region. These include natural agriculture, plantation crops and capital-intensive agriculture. Subsistence farming occurs on most Pacific Islands and is carried out to support local communities. Cassava, taro, yams and sweet potatoes are the most common products of this type of agriculture. Plantation crops are planted in the middle tropical islands, while capital-intensive agriculture is practiced only in Australia and New Zealand.

And finally, fishing and tourism are important sectors of the Oceanian economy and a driver of its development. Fishing serves as an important source of income because many islands have maritime exclusive economic zones that extend over 370 km. Tourism is also important for Oceania as tropical islands, for example, Fiji offers aesthetic beauty, while Australia and New Zealand attract developed cities with modern infrastructure. New Zealand has also become an important tourism region in the field.

Oceania countries

Map of Oceania countries/Wikipedia

Below is a list of the 14 independent countries of Oceania, arranged in order from largest to smallest country by area:

1) Australia:

Area: 7,617,930 km²
Population: about 25,000,000 people
Capital: Canberra

2) Papua New Guinea:

Area: 462,840 km²
Population: more than 8,000,000 people
Capital: Port Moresby

3) New Zealand:

Area: 268,680 km²
Population: about 5,000,000 people
Capital: Wellington

4) Solomon Islands:

Area: 28,450 km²
Population: about 600,000 people
Capitals: Honiara

5) Fiji:

Area: 18,274 km²
Population: about 900,000 people
Capital: Suva

6) Vanuatu:

Area: 12,189 km²
Population: about 270,000 people
Capital: Port Vila

7) Samoa:

Area: 2842 km²
Population: about 193,000 people
Capital: Apia

8) Kiribati:

Area: 811 km²
Population: about 110,000 people
Capital: Tarawa

9) Tonga:

Area: 748 km²
Population: about 107,000 people
Capitals: Nuku'alofa

10) Federated States of Micronesia:

Area: 702 km²
Population: about 105,000 people
Capital: Palikir

11) Palau:

Area: 459 km²
Population: about 21,000 people
Capital: Melekeok

12) Marshall Islands:

Area: 181 km²
Population: about 53,000 people
Capital: Majuro

13) Tuvalu:

Area: 26 km²
Capital: Funafuti

14) Nauru:

Area: 21 km²
Population: about 11,000 people
Capital: No

Geographical location of Oceania, countries and dependent territories of Oceania

Geology and climate of Oceania, soils and hydrology of Oceania, economy and culture of Oceania, Melanesia, Micronesia, New Zealand and Polynesia

Section 1. Main characteristics of Oceania.

Section 2. Physiographic countries of Oceania.

Oceania- This part of the world; a geographical, often geopolitical region of the world consisting primarily of hundreds small islands and atolls in the central and western Pacific.

Main characteristics of Oceania

Oceania is the world's largest collection of islands, located in the western and central Pacific Ocean, between the subtropical latitudes of the Northern and temperate Southern hemispheres. When dividing the entire landmass into parts of the world, Oceania is usually united with Australia into a single part of the world, Australia and Oceania, although sometimes it is separated into an independent part of the world.

Oceania is a large number of islands (about ten thousand) located in the center and south - west of the Pacific Ocean. Oceania is located between the Malay Archipelago and Australia. Divided into Polynesia, Melanesia, Micronesia, and sometimes New Zealand. Total area The islands are about 1.25 million square kilometers. These islands are inhabited by approximately 18 million people.

Oceania is based on New Zealand (South and North Islands) and New Guinea. These islands make up 4/5 of the entire territory. The islands of western Micronesia and Melanesia are large mountain range, rising from the ocean floor, the peaks are above the water. These islands are craters of underwater volcanoes: Samoa, Cook, Easter, Hawaiian, Marquesas.

In Hawaii: Mauna Kea and Mauna Loa, if counted from the ocean floor, reach nine thousand meters. But mostly Micronesia and Polynesia are islands of animal origin (atolls) of coral. They grew from underwater volcanic craters.

Oceania peculiar natural miracle, each island is its own world, with its own charms. The flora is very diverse. Some islands have vegetation of all climate zones. The characteristic tree of Oceania is the coconut palm. Its wood is used for construction, and ropes are woven from palm fibers. Coconut oil is used to make soap and margarine.

The total area of the islands is 1.26 million km² (together with Australia 8.52 million km²), the population is about 10.7 million people. (together with Australia 32.6 million people). Geographically, Oceania is divided into Melanesia, Micronesia and Polynesia; New Zealand is sometimes singled out.

In the Pacific Ocean, in its central and western parts, there is the largest globe a cluster of islands with a total area of about 1.26 million km2, most of which are grouped into archipelagos. All the islands are united under the name Oceania. The development of Oceania took place under conditions of long-term isolation from the mainland, which determines the deep originality of its landscapes. It is manifested both in the geological structure and relief, and in high endemism and poverty of the species composition of flora and fauna, especially in the most remote eastern islands. These reasons provide the basis for identifying Oceania as a special part of the world with the dominance of oceanic landscapes, which has no analogues on the continents. The geological structure of the islands of Oceania is in direct connection with the structure of the bottom of the Pacific Ocean. Almost all the islands are of coral or volcanic origin. In central Oceania (Polynesia and eastern Micronesia), they represent the peaks of submarine volcanoes crowning submarine ridges, erected by powerful outpourings of basaltic lavas at the end of the Neogene and in the Quaternary period along the fault lines of the ancient oceanic platform of the Pacific Ocean floor. The formation of coral islands occurred in the Quaternary period in connection with ecstatic fluctuations in the level of the Pacific Ocean and deflections of sections of its bottom. The islands, concentrated on the western edge of Oceania, lie in zones of geosynclinal structures framing the central platform, and are (according to V.V. Belousov) the tops of grandiose underwater ridges, the leading structures of geosynclinal zones. On the outer (oceanic) side, these islands are framed by deep-sea depressions, extremely clearly expressed in the topography of the ocean floor due to the extremely slow processes of demolition and accumulation of sediments. Mountain-building movements in the peripheral Pacific geosynclines actively manifested themselves in the Mesozoic and Alpine cycles, but have not ended at the present time, as evidenced by frequent and strong earthquakes and active volcanism on the islands. The islands of western Oceania are the largest and most mountainous. Among them, New Zealand and New Guinea stand out for their size and high mountainous terrain, which account for 80% of the land area of Oceania. The islands are scattered at latitudes ranging from subtropical in the northern hemisphere to temperate in the southern (lie between 28°25"N and 52°30"S and 130°E and 105°20"W) , but most of them are concentrated in subequatorial zones, which determines the main features of temperature patterns and moisture regimes. The influence of land affects the climate closest to Australia and. Southeast Asia islands.

The rest are characterized by small daily and seasonal amplitudes of high temperatures, constantly high relative air humidity and large amounts of precipitation, due to the exclusive dominance of marine air masses. The average temperatures of the warmest months (August in the northern hemisphere, February in the southern) vary from 25°C in the north to 16°C in the south, the coldest months (February and August) from 16°C to 5°C. Sharp fluctuations in seasonal and daily temperatures are characteristic only of mountainous islands, where high-altitude climatic zones appear. In New Zealand and New Guinea, high-altitude climatic zones end in a nival climate. Average annual precipitation varies enormously depending on orography. Wet winds (mainly trade winds from both hemispheres) sweep freely over the low, small islands, but rise along the windward slopes of the high mountainous islands, which receive heavy orographic rain (in some places up to 9000 mm or more). This creates sharp climatic and landscape contrasts on slopes of different exposures. Evergreen moist forests grow on the windward slopes, a dense network of deep rivers develops, erosion and chemical weathering actively occur rocks, podzolization of lateritic soil type occurs. The leeward slopes are dominated by mixed (deciduous-evergreen) forests, xerophytic woodlands and peculiar oceanic savannas with hard grasses, pandanus, and groves of coconut palms. The low islands, where mainly cyclonic precipitation from tropical fronts falls, are covered with oceanic savannas, forests of coconut palms and pandanus trees, mangroves (mainly on coral islands) and even semi-desert vegetation; outcrops of dense, unweathered basalts are completely bare. The large islands of Oceania were centers of flora formation. At the same time, many plant species migrated to the islands from Australia, and mainly from the Malay Archipelago and Southeast Asia, as a result of which almost all of Oceania is included in the Malesian floristic subregion of the Paleotropics, which is extremely poor in species composition and highly endemic. The question of the distribution of organisms in Oceania remains unresolved. It is generally believed that migration took place over temporary land bridges. On the other hand, one cannot underestimate the role of winds, currents, birds and, finally, people, who in ancient times made long voyages between archipelagos. The greatest endemism of the flora is found in New Zealand and the Hawaiian Islands, which are divided into special subregions. Among the plants of Oceania, there are many useful for humans: coconut and sago palms, bananas, rubber plants, mangoes, melon and breadfruit trees.

Many tropical crops are grown on the islands: pineapples, bananas, sugar cane, etc. Ocean spaces present great difficulties for the settlement of animals, therefore the composition of the fauna in Oceania is very specific, characterized by great depletion, primarily due to the almost complete absence of mammals. For this reason, most of Oceania is allocated to the Polynesian zoogeographic region. On the islands there are a lot of well-flying birds (swifts, pigeons, etc.) and there are some small animals (mainly bats, dogs and foxes, lizards), as well as insects that were accidentally carried on the trunks of floating trees. The imported animals and birds caused great harm to the fauna of Oceania, many of which occupied empty ecological niches, found a favorable environment for reproduction, and sometimes completely destroyed not only local animals, but also plant cover. Regional landscape differences make it possible to distinguish four physical-geographical countries in Oceania: Melanesia, Micronesia, New Zealand and Polynesia.

The islands of Oceania are washed by numerous seas of the Pacific (Coral Sea, Tasman Sea, Fiji Sea, Koro Sea, Solomon Sea, New Guinea Sea, Philippine Sea) and Indian Oceans (Arafura Sea).

From a geological point of view, Oceania is not a continent: only Australia, New Caledonia, New Zealand, New Guinea and Tasmania are of continental origin, formed on the site of the hypothetical continent of Gondwana. In the past, these islands were a single landmass, but as a result of rising sea levels, a significant part of the surface was under water. The relief of these islands is mountainous and highly dissected. For example, highest mountains Oceania, including Mount Jaya (5029 m), are located on the island of New Guinea.

Most of the islands of Oceania are of volcanic origin: some of them are the summits of large underwater volcanoes, some of which still exhibit high volcanic activity(eg Hawaiian Islands).

Other islands are of coral origin, being atolls that were formed as a result of the formation of coral structures around submerged volcanoes (for example, the Gilbert Islands, Tuamotu). A distinctive feature of such islands are large lagoons, which are surrounded by numerous islets, or motu, the average height of which does not exceed three meters. In Oceania, there is an atoll with the largest lagoon in the world - Kwajalein in the Marshall Islands archipelago. Although its land area is only 16.32 km² (or 6.3 sq. miles), its lagoon area is 2,174 km² (or 839.3 sq. miles). The largest atoll in terms of land area is Christmas Island (or Kiritimati) in the Line archipelago (or Central Polynesian Sporades) - 322 km². However, among atolls there is also a special type - a raised (or elevated) atoll, which is a limestone plateau up to 50-60 m high above sea level. This type of island does not have a lagoon or there are traces of its past existence. Examples of such atolls are Nauru, Niue, and Banaba.

The relief and geological structure of the Pacific Ocean floor in the Oceania region has a complex structure. From the Alaska Peninsula (part of North America) to New Zealand there are a large number of basins of marginal seas, deep ocean trenches (Tonga, Kermadec, Bougainville), which form a geosynclinal belt characterized by active volcanism, seismicity and contrasting relief.

Most of the islands of Oceania have no mineral resources, only the largest of them are being developed: nickel (New Caledonia), oil and gas (New Guinea island, New Zealand), copper (Bougainville island in Papua New Guinea), gold (New Guinea , Fiji), phosphates (on most islands the deposits are almost or already developed, for example, in Nauru, on the islands of Banaba, Makatea). In the past, many islands in the region were heavily mined for guano, the decomposed droppings of seabirds, which were used as nitrogen and phosphorus fertilizer. On the ocean floor of the exclusive economic zone of a number of countries there are large accumulations of iron-manganese nodules, as well as cobalt, but at the moment no development is being carried out due to economic inexpediency.

Oceania is located within a few climatic zones: equatorial, subequatorial, tropical, subtropical, temperate. Most of the islands have a tropical climate. A subequatorial climate prevails on the islands near Australia and Asia, as well as east of the 180th meridian in the equator zone, equatorial - west of the 180th meridian, subtropical - north and south of the tropics, temperate - on most of the South Island in New Zealand.

The climate of the islands of Oceania is determined mainly by trade winds, so most of them receive heavy rainfall. Average annual rainfall ranges from 1,500 to 4,000 mm, although some islands (particularly due to topography and downwind areas) may have drier or wetter climates. Oceania is home to one of the wettest places on the planet: on the eastern slope of Mount Waialeale on the island of Kauai, up to 11,430 mm of precipitation falls annually (the absolute maximum was reached in 1982: then 16,916 mm fell). Near the tropics the average temperature is about 23 °C, near the equator - 27 °C, with little difference between the hottest and coldest months.

On the climate of the islands of Oceania great influence Anomalies such as El Niño and La Niña currents also have an effect. During El Niño, the intertropical convergence zone moves north toward the equator; during La Niña, it moves south away from the equator. In the latter case, the islands experience severe drought, while in the former, heavy rains occur.

Most of the islands of Oceania are subject to the destructive effects of natural disasters: volcanic eruptions(Hawaiian Islands, New Hebrides), earthquakes, tsunamis, cyclones accompanied by typhoons and heavy rains, droughts. Many of them lead to significant material and human losses. For example, the tsunami in Papua New Guinea in July 1999 killed 2,200 people.

On South Island In New Zealand and on the island of New Guinea, there are glaciers high in the mountains, but due to the process of global warming, their area is gradually decreasing.

Due to various climatic conditions Oceania's soils are very diverse. The soils of the atolls are highly alkaline, of coral origin, and very poor. They are usually porous, which is why they retain moisture very poorly, and also contain very little organic and mineral substances with the exception of calcium, sodium and magnesium. The soils of volcanic islands are usually of volcanic origin and are characterized by high fertility. On large mountainous islands there are red-yellow, mountain lateritic, mountain-meadow, yellow-brown soils, yellow soils, and red soils.

Large rivers are found only on the South and North Islands of New Zealand, as well as on the island of New Guinea, which contains the largest rivers in Oceania, the Sepik (1126 km) and Fly (1050 km). The largest river in New Zealand is the Waikato (425 km). The rivers are fed primarily by rain, although in New Zealand and New Guinea the rivers are also fed by water from melting glaciers and snow. On atolls there are no rivers at all due to the high porosity of the soil. Instead, rainwater percolates through the soil to form a lens of slightly brackish water that can be reached by digging a well. For more large islands(usually of volcanic origin) there are small streams of water that flow towards the ocean.

The largest number of lakes, including thermal ones, are located in New Zealand, where there are also geysers. On other islands of Oceania, lakes are a rarity.

Oceania is included in the Paleotropical region of vegetation, with three subregions distinguished: Melanesian-Micronesian, Hawaiian and New Zealand. Among the most widespread plants of Oceania are the coconut palm and breadfruit who play an important role in life local residents: the fruits are used for food, the wood is a source of heat, a building material, and copra is produced from the oily endosperm of coconut palm nuts, which forms the basis of exports for the countries of this region. A large number of epiphytes (ferns, orchids) also grow on the islands. The largest number of endemics (both flora and fauna) are recorded in New Zealand and the Hawaiian Islands, while from west to east there is a decrease in the number of species, genera and families of plants.

The fauna of Oceania belongs to the Polynesian faunal region with a subregion of the Hawaiian Islands. The fauna of New Zealand is allocated to an independent region, New Guinea - to the Papuan subregion of the Australian region. New Zealand and New Guinea are the most diverse. On the small islands of Oceania, primarily atolls, mammals are almost never found: many of them are inhabited only by the small rat. But the local avifauna is very rich. Most atolls have bird colonies where seabirds nest. Of the fauna of New Zealand, the most famous are the kiwi birds, which have become national symbol countries. Other endemics of the country are kea (Latin: Nestor notabilis, or nestor), kakapo (Latin: Strigops habroptilus, or owl parrot), takahe (Latin: Notoronis hochstelteri, or wingless plume). All the islands of Oceania are home to a large number of lizards, snakes and insects.

During the European colonization of the islands, alien species of plants and animals were introduced to many of them, which negatively affected the local flora and fauna.

The region contains a large number of protected areas, many of which occupy large areas. For example, the Phoenix Islands in the Republic of Kiribati have been the world's largest marine reserve since January 28, 2008 (area 410,500 km²).

The indigenous inhabitants of Oceania are Polynesians, Micronesians, Melanesians and Papuans.

Polynesians living in the countries of Polynesia have a mixed racial type: in their appearance, features of the Caucasian and Mongoloid races are visible, and to a lesser extent - Australoid. The largest peoples of Polynesia are Hawaiians, Samoans, Tahitians, Tongans, Maoris, Marquesans, Rapanui and others. Native languages belong to the Polynesian subgroup of the Austronesian family of languages: Hawaiian, Samoan, Tahitian, Tongan, Maori, Marquesan, Rapanui and others. Characteristic features of Polynesian languages are a small number of sounds, especially consonants, and an abundance of vowels.

Micronesians live in the countries of Micronesia. The largest peoples are Carolinians, Kiribatis, Marshallese, Nauru, Chamorros and others. The native languages belong to the Micronesian group of the Austronesian family of languages: Kiribati, Carolinian, Kusaie, Marshallese, Nauruan and others. The Palauan and Chamorro languages belong to the West Malayo-Polynesian languages, and Yapese forms a separate branch of the Oceanian languages, which also includes the Micronesian languages.

Melanesians live in the countries of Melanesia. Racial type - Australoid, with a small Mongoloid element, close to the Papuans of New Guinea. Melanesians speak Melanesian languages, but their languages, unlike Micronesian and Polynesian, do not form a separate genetic group, and the linguistic fragmentation is very great, so that people from neighboring villages may not understand each other.

Papuans inhabit the island of New Guinea and some areas of Indonesia. In terms of anthropological type, they are close to the Melanesians, but differ from them in language. Not all Papuan languages are related to each other. The national language of the Papuans in Papua New Guinea is the English-based Tok Pisin creole language. According to various sources of peoples and languages, the Papuans number from 300 to 800. However, there are difficulties in establishing the difference between an individual language and a dialect.

Many languages of Oceania are on the verge of extinction. In everyday life they are increasingly being replaced by English and French languages.

The situation of the indigenous population in the countries of Oceania is different. If, for example, in the Hawaiian Islands their share is very low, then in New Zealand Maori make up up to 15% of the country's population. The share of Polynesians in the Northern Mariana Islands, located in Micronesia, is about 21.3%. In Papua New Guinea, the majority of the population is made up of numerous Papuan people, although there is also a high proportion of people from other islands in the region.

In New Zealand and the Hawaiian Islands, the majority of the population is European, whose share is also high in New Caledonia (34%) and French Polynesia (12%). On the Fiji Islands, 38.2% of the population is represented by Indo-Fijians, descendants of Indian contract workers brought to the islands by the British in the 19th century.

Recently, the proportion of immigrants from Asia (mainly Chinese and Filipinos) has been increasing in the countries of Oceania. For example, in the Northern Mariana Islands, the share of Filipinos is 26.2%, and the Chinese are 22.1%.

The population of Oceania is predominantly Christian, adhering to either the Protestant or Catholic branches.

The island of New Guinea and the nearby islands of Melanesia were supposedly settled by people from Southeast Asia who arrived by canoe approximately 30-50 thousand years ago. About 2-4 thousand years ago, most of Micronesia and Polynesia were inhabited. The process of colonization ended around 1200 AD. By the beginning of the 16th century, the peoples of Oceania were experiencing a period of decomposition of the primitive communal system and the formation of an early class society. Crafts, agriculture, and navigation actively developed.

In the period from the 16th to the 18th centuries, the period of study of Oceania by Europeans continued, who gradually began to populate the islands. However, the process of European colonization proceeded very slowly, since the region did not arouse much interest among foreigners due to the lack of natural resources, and had a negative impact on the local population: many diseases were introduced that had never existed in Oceania, and this led to epidemics, in as a result of which a significant part of the natives died. At the same time, there was a Christianization of the inhabitants, who worshiped numerous deities and spirits.

IN XVIII-XIX centuries The islands of Oceania were divided between the colonial powers, primarily the British Empire, Spain and France (later joined by the USA and the German Empire). Of particular interest to Europeans was the possibility of creating plantations on the islands (coconut palms for the production of copra, sugar cane), as well as the slave trade (the so-called “blackbird hunt,” which involved recruiting islanders to work on plantations).

New Zealand became a dominion in 1907, but it did not formally become a fully independent state until 1947. After the First World War, the first political organizations began to emerge (“May” in Western Samoa, “Fiji Youth” in Fiji), which fought for the independence of the colonies. During World War II, Oceania was one of the theaters of war where many battles took place (mainly between Japanese and American forces).

After the war, there were some economic improvements in the region, but in most colonies it was lopsided (the predominance of the plantation economy and the almost complete absence of industry). Since the 1960s, the process of decolonization began: Western Samoa gained independence in 1962, West Irian in 1963, and Nauru in 1968. Subsequently, most of the colonies became independent.

After gaining independence, most countries in Oceania still have serious economic, political and social problems, which they are trying to solve with the help of the world community (including the UN) and through regional cooperation. Despite the process of decolonization in the 20th century, some islands in the region still remain dependent to one degree or another: New Caledonia, French Polynesia and Wallis and Futuna from France, the Pitcairn Islands from Great Britain, the Cook Islands, Niue, Tokelau from New Zealand, a number islands (all minor outer islands except Navassa Island) from the United States.

Most countries in Oceania have a very weak economy, which is due to several reasons: limited natural resources, remoteness from world markets for products, and a shortage of highly qualified specialists. Many states depend on financial assistance from other countries.

The basis of the economy of most countries in Oceania is agriculture (copra and palm oil production) and fishing. Among the most important agricultural crops are the coconut palm, bananas, and breadfruit. Possessing huge exclusive economic zones and not having a large fishing fleet, the governments of the countries of Oceania issue licenses for the right to catch fish to ships of other countries (mainly Japan, Taiwan, the USA), which significantly replenishes the state budget. The mining industry is most developed in Papua New Guinea, Nauru, New Caledonia, and New Zealand.

A significant part of the population is employed in the public sector. Recently, measures have been taken to develop the tourism sector of the economy.

The art of Oceania has developed a distinctive style that makes the local culture unique.

IN fine arts Among the Polynesians, the main place belongs to wood carving and sculpture. Among the Maori, carving reached a high level; they decorated boats, parts of houses, carved statues of gods and ancestors; such a statue stands in every village. The main motif of the ornament is a spiral. Stone moai statues were created on Easter Island and the Marquesas Islands. Of the crafts, the most important was the construction of boats, as they made it possible to engage in fishing and travel over long distances (in connection with this, astronomy developed among the Polynesians). Tattooing is widespread among Polynesians. The clothing used was tapa, which was made from the bark of trees of the mulberry family. Myths, legends, fairy tales, singing and dancing were developed in Polynesia. Writing was probably only on Easter Island (rongo-rongo); on other islands folklore was transmitted orally.

Singing and dancing are popular forms of art among Micronesians. Each tribe has its own myths. In the life of the islanders, the main place was occupied by ships - boats. There were boats different types: dibenil - sailing boat, valab - large rowing boat. Megaliths are found on the Yap Islands. Of particular interest is Nan Madol, known as the “Venice of Micronesia”. This the whole city on the water, in the lagoon on the island of Ponape. Built on artificial islands stone structures.

Wood carving reached a special peak among the Melanesians. Unlike the Polynesians, the Melanesians were not so tied to the sea, they were more land dwellers. The main musical instrument is the drum, or tom-tom. The Papuans have widespread folklore, songs, dances, and myths. The songs and dances are very simple. The singing is called mun, the melody varies very little. The cult of ancestors and skulls is important. Papuans make korvars - images of ancestors. Wood carving is well developed.

Physiographic countries of Oceania

Regional landscape differences allow us to distinguish four physical-geographical countries in Oceania: Melanesia, Micronesia, New Zealand and Polynesia.

Melanesia

Melanesia includes New Guinea, the archipelagos of Bismarck, Louisaida, Solomon Islands, Santa Cruz, New Hebrides, New Caledonia, Fiji and a number of small islands. The islands of Melonesia lie in the alpine geosynclinal zone and were created by mountain-building processes of the Neogene and early Quaternary periods. They are composed of crystalline intrusions and folded sedimentary deposits. The complex of crystalline rocks contains ore minerals: nickel, gold, iron ores, chromites. Oil-bearing basins are confined to sedimentary formations.

Volcanic activity continues to this day. Frequent and strong earthquakes occur.

The relief of the islands is predominantly mountainous. The islands received their modern shape in the Quaternary period; previously they were connected with each other, with Australia, and with the Malay Archipelago by land bridges along which the migration of flora and fauna took place. In this regard, plant and fauna include many Australo-Malayan species.

Mountains rise to 2000 m and higher in New Guinea, the Solomon Islands and the Bismarck Archipelago, which are collectively called Northern Melanesia. The climate here is constantly hot and very humid; most of the islands are covered with evergreen rainforests.

The climate of Southern Melanesia is hot, seasonally humid, hylean forests cover only the windward slopes of the mountains, and savannas appear on the dry, leeward slopes.

The largest island of Melanesia and Oceania is New Guinea with an area of 829,300 km2. This island is located entirely in equatorial latitudes. The island's flora is rich in species and includes 6,872 plant species, of which 85% are endemic. The Sredinny Ridge stretches across the entire island, the height of which increases to the west up to Jaya Peak (5029 m). Condenses on its slopes huge amount moisture brought in winter by the southeast trade winds, and in summer by the northwest monsoon. On high peaks Mountain precipitation falls in solid form. The snow line lies at an altitude of 4420 m. There are small glaciers on the mountain tops.

Below the eternal snow and rocky placers there are tall grass meadows with rhododendron bushes, and even lower there is a belt of mountain gils, which at an altitude of 900 m give way to the wilds of typical gils.

To the south of the Sredinny Range lies a wide lowland, at the base of which lies a crystalline basement overlain by marine and alluvial sediments.

The lowlands receive up to 4000-5000 mm of precipitation, but its southern regions are very dry. The characteristic vegetation type is savannah with tufts of tough grasses and Australian tree species - banksias, eucalyptus and acacia.

There are many reed swamps in the floodplains of the Fly and Digul rivers. Mangrove forests grow at river mouths and along low-lying banks.

New Zealand

New Zealand consists of two large islands - North and South - and a number of small ones. It occupies the southernmost position in Oceania. The islands of New Zealand extend from southwest to northeast and follow a major fault line that continues along the deep-sea Kermadec and Tonga trenches.

New Zealand structures began to form in the Upper Paleozoic. The most important mountain-building movements occurred in the Mesozoic era and in the Paleogene, after which a period of tectonic rest and peneplanation began. In the Pliocene, new folding and differential vertical movements occurred, which fragmented the ancient land and determined the modern outlines of the coasts.

The development of the organic world occurred mainly without replenishment from the outside. The flora of the islands consists of 74% endemic plants and is relatively poor in species. There are tree ferns (cyathea, dixonia), conifers, myrtaceae, etc. The fauna of New Zealand is also characterized by high endemism and extreme antiquity. Local mammals are represented by two species of bats and one species of rat. There are flightless (kiwi, owl parrot) and flying (nestor parrot) birds. The only representative of the most ancient reptiles (primordial lizards) - the hatteria - has survived.

The nature of the North and South Islands is diverse.

The South Island (area 150 thousand km2) has mountainous terrain. The Southern Alps stretch along the western half of the island. Their height reaches 3764 m. They have up to 50 glaciers with a total area of about 1000 km2. The Otago Plateau (1200-1800 m) adjoins the mountains from the south. Large lakes lie in southwest Otago. Along the western slopes of the Southern Alps there is a narrow coastal lowland, and the Canterbury coastal plains adjoin the eastern slopes.

Almost the entire South Island lies in a moderately warm, very humid climate. The average winter temperature is 5-7°C. Sometimes it drops below 0°C. Western winds predominate. In summer, the westerly circulation remains weakened. Temperatures are 14° in the south and 17°C in the north. Precipitation occurs both in winter and summer, but the maximum occurs in summer. On the lowlands, the annual precipitation is 2500 mm, on the mountain slopes - 3500 mm. The eastern slopes receive only 700 mm per year.

The rivers are full-flowing with uniform flow and fed by snow, glaciers and rain. They spread widely in spring and summer.

The western slopes of the mountains are covered with dense mixed forests, in which evergreen trees (laurel and conifers) penetrate far to the south. Above 600 m and up to 1000 m there is a belt of evergreen beech forests. Above it is a belt of low-growing hard-leaved shrubs and mountain meadows. The eastern slopes are covered with evergreen bushes and beech forests.

The North Island (area 115 thousand km2) is separated from the South Island by the Cook Strait graben. The relief is dominated by medium-altitude plateaus, with lowlands widely developed along the edges. Along east coast the Ruahine ridge stretches out. The central part of the island is occupied by a volcanic plateau, above which volcanic cones rise. Among them there are active ones: Ruapehu - the highest in New Zealand, Tarawera. There are many lakes on the plateau, often thermal. The largest of them is Lake Taupo.

The climate of the North Island is subtropical, warm temperate, with very wet winters. In summer there is less precipitation. The vegetation is represented by mixed subtropical forests, richer in species composition than on the South Island. The lava plateaus are dominated by thickets of evergreen shrubs; forests appear only on weathered lavas.

Micronesia

Micronesia includes about 1,500 islands: the Kazan, Mariana, Caroline, Marshall, Gilbert and Nauru archipelagos. All islands are small; the largest of them, Guam, has an area of 583 km2.

The Western archipelagos are located in the belt of geosynclinal structures of the Pacific Ocean floor and are the peaks of volcanoes. The relief of the islands is mountainous (height from 400 to 1000 m). The islands of eastern Micronesia are coral. They rarely rise above the water by more than 1.5 - 2.5 m. Many of them have the shape of typical atolls.

The islands lie in latitudes from equatorial to subtropical. Climate northern islands just as hot and humid as the southern ones. The greatest amount of precipitation (1500-2000 mm) falls on the eastern slopes of the mountainous islands, windward of the northeast trade winds. Previously, the slopes were covered with dense, moist evergreen tropical forests, but currently these forests have greatly decreased in area. The leeward slopes of the islands are occupied by grass savannas. The inland lagoons are framed by mangroves.

Polynesia

Polynesia unites the islands lying generally east of the 180th meridian, between 30° N. w. and 30° S. sh.: Hawaiian, Phoenix and Tokelau archipelagos, Samoa, Cook Islands, Tubuau, Tahiti, Tuamotu, etc. The islands are the tops of basaltic volcanoes, mostly beheaded by weathering and abrasion, overlain by reef limestones. There are also coral islands - a product of the ocean, madrepore corals and calcareous algae.

The name "Polynesia", meaning many islands, was first used by Charles de Brosses in 1756, and was originally applied to all the islands of the Pacific Ocean. Jules Dumont D'Urville in 1831, in a lecture to the Geographical Society of Paris, proposed restrictions on its use, and also introduced the terms Micronesia and Melanesia. This division into three different Pacific subregions is still used today.

Geographically, Polynesia can be described as a triangle with corners at Hawaii, Aoteaora (New Zealand) and Rapa Nui(Easter Island). Other major island groups located within the Polynesian triangle are Samoa, Tonga, the various island chains that form the Cook Islands and French Polynesia. Niue - a rare secluded place island state near the center of Polynesia. Island groups outside this large triangle include Tuvalu and the French territory of Wallis and Futuna. There are also small enclaves of isolated Polynesians in Papua New Guinea, Solomons and Vanuatu. Basically, however, it is an anthropological term applied to one of the three parts of Oceania (others call Micronesia and Melanesia), whose population generally belongs to the same ethnocultural family as a result of centuries of maritime movements.

Polynesia is divided into two distinct cultural groups, Eastern Polynesian and Western Polynesia. The culture of Western Polynesia is determined by large population. It has strong institutions of marriage, and well-developed judicial, monetary and trading traditions. It includes groups of Tonga, Niue, Samoa and Polynesian areas beyond the borders. Eastern Polynesian cultures are highly adapted to smaller islands and atolls, including the Cook Islands, Tahiti, Tuamotus, Marquesas, Hawaii and Easter Island. However large islands New Zealand was first settled by East Polynesians, who adapted their culture to a non-tropical environment. Religion, agriculture, fishing, weather forecasting, canoeing (similar to modern catamarans), construction and navigation were highly developed skills because the population of the entire island depended on them. Trade was divided into two types: luxury and household items. Many small islands could suffer severe famine if their gardens were poisoned by salt from a hurricane's storm surge. In such cases fishing, a primary source of protein, would not attenuate the energy loss of food. Sailors in particular were highly respected, and each island maintained a navigation house, with a canoe building area. Polynesian settlements had two categories, villages and towns. The size of the inhabited island determined whether or not a village would be built. Large volcanic islands usually had villages divided into many zones across the island. Food and resources were more abundant and so these settlements of four to five houses (usually with gardens) were established so that there was no overlap between zones. Villages, on the other hand, were founded on the coasts of smaller islands and consisted of thirty or more houses. Typically these villages were fortified with walls and palisades made of stone and timber. However, New Zealand demonstrates the opposite; large volcanic islands with fortified villages. Due to the relatively large number of competitive sects of Christian missionaries in the islands, many Polynesian groups converted to Christianity. Polynesian languages are all members of the Oceanic language family, a subgroup of the Austronesian language family.

The organic world is represented by reef-loving plants and animals not only of land, but also of the sea. Along the outer edge of the atoll, seaweeds, foraminifera, sponges, sea urchins and starfish, crabs and shrimp. Behind the outer graben of the atoll, on thick carbonate soils, land vegetation appears: thickets of evergreen xerophytic shrubs, forests of coconut palms, pandanus, banana thickets and breadfruit groves.

The largest archipelago of Polynesia is the Hawaiian Islands, stretching for 2500 km. The Hawaiian archipelago consists of 24 islands with a total area of 16,700 km2. The largest islands are Hawaii, Maui, Oahu and Kauai. Volcanic activity continues only on the island of Hawaii; on other large islands it ceased at the beginning of the Quaternary period.

Most of the islands are located in a tropical climate zone and are under the continuous influence of northeastern trade winds. The amount of precipitation on the windward slopes exceeds 4000 mm, on the leeward slopes - no more than 700 mm per year. High air temperatures are typical. The northwestern islands of the archipelago lie in the subtropical zone. They are further away from the cold California Current, so they have higher average seasonal temperatures. Precipitation is cyclonic, maximum in winter. The amount of annual precipitation is about 1000 mm.

The flora of Hawaii is highly endemic (up to 93% of species) and uniform, so it is classified as a special Hawaiian subregion of the Paleotropics. It contains gymnosperms, ficus, and epiphytic orchids. Palm trees are represented by three types. The mountains are characterized by seasonally wet mixed forests up to an altitude of 700 m), permanently wet evergreen forests (up to 1200 m), and tropical mountain hylaea (up to 3000 m). Savannas do not rise on slopes higher than 300-600 m.

The islands have a very rich avifauna (67 genera). More than half lead a sedentary lifestyle and nest on islands. In addition to birds, there is one species of bat, several species of lizards, and beetles.

The current state of nature and its protection

Island landscapes are extremely vulnerable to economic activity people. Great harm is caused by the accidental or deliberate introduction of alien organisms - plants or animals - to the islands.

The condition of the natural environment is worsened by the irrational use of land, the cutting down of valuable tree species, the pollution of coastal water bodies and the direct destruction of the island land.

The nature of biogenic islands is the most vulnerable. The vulnerability of their flora and fauna, as well as the small volume of fresh water and surface land, create great difficulties for the conservation of the natural environment.

With the rapid population growth, maintaining the necessary sanitary standards on the islands becomes a difficult task, especially since it is not easy to find suitable place for waste and wastewater disposal.

Phosphorite mining causes great devastation on some islands. As a result of this, people are creating deserts, the restoration of which is practically inaccessible to the young states of Oceania.

Tourists, lovers of spearfishing and collectors of living souvenirs, cause great harm to the nature of the islands. Already, many states have adopted laws prohibiting the breaking of corals, collecting shells, pearling, and hunting birds and animals.

Island groups

Next are the islands and island groups, or nations or subnational territories, that have a native Polynesian culture. Some islands of Polynesian origin are outside the general triangle that geographically defines the area.

American Samoa (Overseas Territory of the United States)

Anuta (in Solomon Islands)

Cook Islands (self-governing state in association with New Zealand)

Easter Island (part of Chile, named Rapa Nui in Rapa Nui)

Emai (in Vanuatu)

French Polynesia (“foreign country”, territory of France)

Hawaii (United States State)

Kapingamarangi (in the United States of Micronesia)

Mele (in Vanuatu)

New Zealand (called Aotearowa in Maori, usually associated with Australasia)

Niue (self-governing state in free association with New Zealand)

Nigeria (in Papua New Guinea)

Nukumanu (in Papua New Guinea)

Nikuoro (in the United States of Micronesia)

Ontong Java (in Solomon Islands)

Pileni (in Solomon Islands)

Rennell (in Solomon Islands)

Rotuma (in Fiji)

Samoa Islands (independent nation)

Sikaina (in Solomon Islands)

Country Boys Island (politically part of American Islands Samoa)

Takuu (in Papua New Guinea)

Tikopia (in Solomon Islands)

Tokelau (New Zealand overseas dependency)

Tonga (independent nation)

Tuvalu (independent nation)

Wallis and Futuna (foreign territory of France).

Sources

Wikipedia – The Free Encyclopedia, WikiPedia

oceaniasport.info – Oceania

stranymira.com – Countries

polynesia.ru – Polynesia

- the smallest continent in area, located in the eastern and southern hemispheres. The area of Australia is 8 million km2. Extreme points Australia: Northern: Cape York (10° S, 143° E); South: Cape Wilson (39° S, 146° E); Western: Cape Steep Point (26° S, 113° E); Eastern: Cape Byron (28° S, 153° E). Australia is washed from the west and south by the waters of the Pacific Ocean, and from the east by the waters of the Pacific. In the north and northeast, the coasts of Australia are washed by and, in the southeast - by the sea. Coastline in general it is not cut too much. In the north there are two large peninsulas: Cape York and Arnhem Land, between them is the Gulf of Carpentaria, and in the south the Great Australian Bight juts into the land. In the southeast there is a large island -.

Oceania- a cluster of islands and archipelagos located in the central and southwestern parts. The largest islands of Oceania are New and. There are more than 7,000 islands in Oceania, with a total area of 1.3 million km2. The relief of Australia is quite flat and monotonous. The center of the continent is occupied by the Central Plain, the heights of which do not exceed 100 m. In the west of the continent there is the Western Australian Plateau, 400-500 m high, in the east - the Great Dividing Range, to which the highest point of the continent belongs - the city of Kosciuszko (2230 m). These are quite old, heavily destroyed mountains, which descend sharply towards the coast, and gradually turn into a plain towards the center of the mainland.

Most of the islands of Oceania arose as a result of volcanic activity; the topography of such islands is varied, there are mountains, hills, and small ridges. Coral islands are usually flat. There are also islands of mainland origin, for example.

Australia and New Zealand are rich in deposits of iron, manganese, gold, diamonds, oil, etc. On the islands there are reserves of metal ores and phosphorites, however | almost all are poorly developed.

There are no large rivers in Australia. The most big river mainland with a large tributary, the Darling, flows into the Great Australian Bight and belongs to the Indian Ocean basin. There are many creeks - empty riverbeds that fill with water during the rainy season and turn into rivers and streams. Eat large lake Air, in summer it is filled with rainwater and can reach 15,000 km2. The rest of the time the lake dries up and breaks up into a number of small lakes. On small lakes of volcanic origin.

Most of Australia has a tropical climate. The western edge of the continent is well moistened, since moisture from the ocean is retained by the Great Dividing Range. In the central part the climate is arid, with 250-300 mm of precipitation per year. The climate on the northern coast of the mainland is humid in summer and quite dry in winter. The southern and eastern parts of Australia are in the zone. The east is quite humid, with precipitation occurring throughout the year. On south coast warm and little precipitation, in the southeast it is hot, and in winter it is also very humid.

With the exception of all the islands of Oceania, they are located in the equatorial and tropical zones; it is warm here, temperature changes are smoothed out by the influence of the ocean, so the climate is quite mild. New Zealand has a temperate climate, with normal rainfall, moderately warm summers and fairly warm winters.

Australia is located quite isolated from other continents; it previously separated from the ancient common continent of Gondwana, therefore it has a unique animal and flora. Many species here are endemic - that is, they are not found on any other continent. In Australia preserved last species oviparous: platypus and echidna, there are many marsupials here. Many animals originated from wild domestic animals brought to the mainland from: Dingo dogs, rabbits.

Many plants have adapted to the arid continent; in particular, eucalyptus trees turn their leaves edgewise during daylight hours to reduce evaporation. The bottle tree has a thick trunk in which moisture accumulates.

In the center of the continent there are also savannas, where red-brown soils are formed. Eucalyptus trees, evergreen shrubs grow here, ostriches, kangaroos, dingoes, and wombats are found. In the northeast, east and west of the continent there are zones of tropical and subtropical rainforests, where red forests are formed. Palm trees, ficuses, beeches, eucalyptus trees grow in this area, marsupial bears and many birds are found.

On most of the islands, wet trees grow: palm trees, bananas, breadfruit, etc., there are practically no predators among animals, and there are a lot of birds.

Oceania is a part of the world; a geographical, often geopolitical, region of the world consisting primarily of hundreds of small islands and atolls in the central and western Pacific Ocean.

Geographical location

The islands of Oceania are washed by numerous seas of the Pacific (Coral Sea, Tasman Sea, Fiji Sea, Koro Sea, Solomon Sea, New Guinea Sea, Philippine Sea) and Indian Oceans (Arafura Sea).

Countries and dependent territories

Name of region, countries	Population	Population density (persons/km²)
Australia
Australia			Canberra	AUD (Australian Dollar)
Ashmore and Cartier (Australia)	uninhabited
Cocos Islands (Australia)			West Island	AUD (Australian Dollar)
Coral Sea Islands (Australia)	uninhabited
Norfolk (Australia)			Kingston	AUD (Australian Dollar)
Christmas Island (Australia)			Flying Fish Cove	AUD (Australian Dollar)
Heard Island and McDonald Islands (Australia)	uninhabited
Melanesia
Vanuatu			Port Vila
Irian Jaya (Indonesia)			Jayapura, Manokwari
New Caledonia (France)
Papua New Guinea			Port Moresby
Solomon Islands				SBD (Solomon Islands Dollar)
Fiji				FJD (Fiji Dollar)
Micronesia
Guam (USA)				USD (USA Dollar)
Kiribati			South Tarawa	AUD (Australian Dollar)
Marshall Islands				USD (USA Dollar)
Nauru				AUD (Australian Dollar)
Palau			Melekeok	USD (USA Dollar)
Northern Mariana Islands (USA)				USD (USA Dollar)
Wake (USA)
Federated States of Micronesia				USD (USA Dollar)
Polynesia
American Samoa (USA)			Pago Pago, Fagatogo	USD (USA Dollar)
Baker (USA)	uninhabited
Hawaii (USA)			Honolulu	USD (USA Dollar)
Jarvis (USA)	uninhabited
Johnston (USA)
Kingman (USA)	uninhabited
Kiribati			South Tarawa	AUD (Australian Dollar)
Midway (USA)
Niue (New Zealand)				NZD (New Zealand Dollar)
New Zealand			Wellington	NZD (New Zealand Dollar)
Cook Islands (New Zealand)				NZD (New Zealand Dollar)
Easter Island (Chile)			Hanga Roa	CLP (Chilean Pesso)
Palmyra (USA)
Pitcairn (UK)			Adamstown	NZD (New Zealand Dollar)
Samoa				WST (Samoan tala)
Tokelau (New Zealand)				NZD (New Zealand Dollar)
Tonga			Nuku'alofa	TOP (Tongan pa'anga)
Tuvalu			Funafuti	AUD (Australian Dollar)
Wallis and Futuna (France)				XPF (French Pacific Franc)
French Polynesia (France)				XPF (French Pacific Franc)
Howland (USA)	uninhabited

Geology

From a geological point of view, Oceania is not a continent: only Australia, New Caledonia, New Zealand, New Guinea and Tasmania are of continental origin, having formed on the site of the hypothetical continent of Gondwana. In the past, these islands were a single landmass, but as a result of rising sea levels, a significant part of the surface was under water. The relief of these islands is mountainous and highly dissected. For example, the highest mountains in Oceania, including Mount Jaya (5029 m), are located on the island of New Guinea.

Most of the islands of Oceania are of volcanic origin: some of them are the tops of large underwater volcanoes, some of which still exhibit high volcanic activity (for example, the Hawaiian Islands).

Oceania Climate

Oceania is located within several climatic zones: equatorial, subequatorial, tropical, subtropical, temperate. Most of the islands have a tropical climate. A subequatorial climate prevails on the islands near Australia and Asia, as well as east of the 180th meridian in the equator zone, equatorial - west of the 180th meridian, subtropical - north and south of the tropics, temperate - on most of the South Island in New Zealand.

The climate of the Oceanian islands is also greatly influenced by such anomalies as the El Niño and La Niña currents. During El Niño, the intertropical convergence zone moves north toward the equator; during La Niña, it moves south away from the equator. In the latter case, the islands experience severe drought, while in the former, heavy rains occur.

Most of the islands of Oceania are subject to the destructive effects of natural disasters: volcanic eruptions (Hawaiian Islands, New Hebrides), earthquakes, tsunamis, cyclones accompanied by typhoons and heavy rains, droughts. Many of them lead to significant material and human losses. For example, the tsunami in Papua New Guinea in July 1999 killed 2,200 people.

There are glaciers high in the mountains on the South Island of New Zealand and on the island of New Guinea, but due to global warming, their area is gradually decreasing.

Soils and hydrology

Due to different climatic conditions, Oceania's soils are very diverse. The soils of the atolls are highly alkaline, of coral origin, and very poor. They are usually porous, which is why they retain moisture very poorly, and also contain very little organic and mineral substances with the exception of calcium, sodium and magnesium. The soils of volcanic islands are usually of volcanic origin and are characterized by high fertility. On large mountainous islands there are red-yellow, mountain lateritic, mountain-meadow, yellow-brown soils, yellow soils, and red soils.

Large rivers are found only on the South and North Islands of New Zealand, as well as on the island of New Guinea, which contains the largest rivers in Oceania, the Sepik (1126 km) and Fly (1050 km). The largest river in New Zealand is the Waikato (425 km). The rivers are fed primarily by rain, although in New Zealand and New Guinea the rivers are also fed by water from melting glaciers and snow. On atolls there are no rivers at all due to the high porosity of the soil. Instead, rainwater percolates through the soil to form a lens of slightly brackish water that can be reached by digging a well. On larger islands (usually of volcanic origin) there are small streams of water that flow towards the ocean.

The largest number of lakes, including thermal ones, are located in New Zealand, where there are also geysers. On other islands of Oceania, lakes are a rarity.

Flora and fauna

Oceania is included in the Paleotropical region of vegetation, with three subregions distinguished: Melanesian-Micronesian, Hawaiian and New Zealand. Among the most widespread plants in Oceania are the coconut palm and the breadfruit tree, which play an important role in the lives of local residents: the fruits are used for food, the wood is a source of heat, a building material, and copra is produced from the oily endosperm of coconut palm nuts, which forms the basis of exports to the countries of this region. A large number of epiphytes (ferns, orchids) also grow on the islands. The largest number of endemics (both flora and fauna) are recorded in New Zealand and the Hawaiian Islands, while from west to east there is a decrease in the number of species, genera and families of plants.

The fauna of Oceania also belongs to the Polynesian faunal region with a subregion of the Hawaiian Islands. The fauna of New Zealand is allocated to an independent region, New Guinea - to the Papuan subregion of the Australian region. New Zealand and New Guinea are the most diverse. On the small islands of Oceania, primarily atolls, mammals are almost never found: many of them are inhabited only by the small rat. But the local avifauna is very rich. Most atolls have bird colonies where seabirds nest. Of the fauna of New Zealand, the most famous are the kiwi birds, which have become the national symbol of the country. Other endemics of the country are kea (Latin: Nestor notabilis, or nestor), kakapo (Latin: Strigops habroptilus, or owl parrot), takahe (Latin: Notoronis hochstelteri, or wingless plume). All the islands of Oceania are home to a large number of lizards, snakes and insects.

During the European colonization of the islands, alien species of plants and animals were introduced to many of them, which negatively affected the local flora and fauna.

Population

The indigenous inhabitants of Oceania are Polynesians, Micronesians, Melanesians and Papuans.

Many languages of Oceania are on the verge of extinction. In everyday life they are increasingly being replaced by English and French.

The population of Oceania is predominantly Christian, adhering to either the Protestant or Catholic branches.

History of Oceania

Pre-colonial period

Colonial period

The ships of the English explorer James Cook and the canoes of the natives in Matavai Bay on the island of Tahiti (French Polynesia), artist William Hodges, 1776

In the 18th-19th centuries, the islands of Oceania were divided between colonial powers, primarily the British Empire, Spain and France (later joined by the USA and the German Empire). Of particular interest to Europeans was the possibility of creating plantations on the islands (coconut palms for the production of copra, sugar cane), as well as the slave trade (the so-called “blackbird hunt,” which involved recruiting islanders to work on plantations).

Post-colonial period

Economy

A significant part of the population is employed in the public sector. Recently, measures have been taken to develop the tourism sector of the economy.

Culture

The art of Oceania has developed a distinctive style that makes the local culture unique.

In the visual arts of the Polynesians, the main place belongs to wood carving and sculpture. Among the Maori, carving reached a high level; they decorated boats, parts of houses, carved statues of gods and ancestors; such a statue stands in every village. The main motif of the ornament is a spiral. Stone moai statues were created on Easter Island and the Marquesas Islands. Of the crafts, the most important was the construction of boats, as they made it possible to engage in fishing and travel over long distances (in connection with this, astronomy developed among the Polynesians). Tattooing is widespread among Polynesians. The clothing used was tapa, which was made from the bark of trees of the mulberry family. Myths, legends, fairy tales, singing and dancing were developed in Polynesia. Writing was probably only on Easter Island (rongo-rongo); on other islands folklore was transmitted orally.

Singing and dancing are popular forms of art among Micronesians. Each tribe has its own myths. In the life of the islanders, the main place was occupied by ships - boats. There were different types of boats: dibenil - a sailing boat, valab - a large rowing boat. Megaliths are found on the Yap Islands. Of particular interest is Nan Madol, known as the “Venice of Micronesia”. This is a whole city on the water, in a lagoon on the island of Ponape. Stone structures were built on artificial islands.

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The message Oceania 7th grade will briefly tell you a lot useful information about this geographical region of the world. Also, information about Oceania report will help deepen your knowledge of geography.

Message about Oceania

Oceania is a separate part of the geopolitical region. It consists of a large number of atolls and islands that are located in the central and western parts of the Pacific Ocean.

Oceania: brief description

Oceania is located between the subtropical latitudes of the Northern Hemisphere and the temperate latitudes of the Southern Hemisphere. Geographers often consider Oceania as part of Australia. For this there is geographical name, which sounds like Australia and Oceania. The total area of the geopolitical region is 1.24 million km 2. It is inhabited by 10.6 million people.

Oceania is divided into 3 geographical regions: Micronesia, Polynesia and Melanesia. It is washed by such seas of the Pacific Ocean as the Solomon, Coral, New Guinea, Koro and Fiji, and Tasman Sea. And the Arafura Sea, which belongs to the Indian Ocean basin.

Climatic features of Oceania

Most of Oceania is dominated by a tropical climate and heavy annual rainfall. The islands, which are located closer to the tropical zone, are characterized by an average annual temperature of +23 °C. In the area near the equator - 27 °C. The climate of the geopolitical region is influenced by El Niño and La Niña currents. Most of the islands are susceptible to the negative effects of tsunamis, active volcanoes and typhoons.

Oceania differs from other regions in the dramatic change weather conditions: heavy rains give way to prolonged drought.

Minerals of Oceania

Mineral deposits are due to geological structure and the origin of the islands. The New Caledonia region produces nickel, chromite and other metals. New Guinea has reserves of bauxite, coal and oil. The atoll islands are rich in phosphorites.

Flora and fauna of Oceania

The large islands are covered with moist evergreen forests or savannas. The predominant trees are pandanus, bamboos, ficus, and casuarinas. Some types of trees are useful for human activity - sago and coconut palms, mangoes and bananas, melon and breadfruit. Also on the islands of Oceania there are endemic species: tree ferns, kauri pine, New Zealand flax and cabbage tree.

The fauna is represented by echidnas, tree kangaroos, crocodiles, and kiwi birds. There are no predators or poisonous snakes on the islands, and there are practically no mammals. Europeans brought pigs, cows, horses, goats, rabbits, and cats to Oceania.

The indigenous inhabitants of Oceania are representatives of the Australoid-Mongoloid race.
Here is the country of Karibati, which lies in all hemispheres.
The region is located active volcano, not fading since 1902.
Hadeaway Island is unique in that it has an underwater post office, the only one in the world.
In the past, the inhabitants of Oceania practiced cannibalism.

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