Ecoregion An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas o ...

s of the world, spanning all land area (terrestrial) of the planet, were first defined and mapped in 2001 and subsequently revised in 2017. Later,

freshwater ecoregions An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of l ...

and

marine ecoregions A marine ecoregion is an ecoregion, or ecological region, of the oceans and seas identified and defined based on biogeographic characteristics. Introduction A more complete definition describes them as “Areas of relatively homogeneous species ...

of the world were identified. Within

India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...

, there are 46 terrestrial ecoregions, 14 freshwater ecoregions, and 6 marine ecoregions.

Terrestrial ecoregions

The terrestrial ecoregions of the world include 45 ecoregions that fall entirely or partly within the boundaries of

. These ecoregions fall within two biogeographic realms:

Indomalayan The Indomalayan realm is one of the eight biogeographic realms. It extends across most of South and Southeast Asia and into the southern parts of East Asia. Also called the Oriental realm by biogeographers, Indomalaya spreads all over the Indi ...

and

Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Si ...

. They also fall under ten

biome A biome () is a biogeographical unit consisting of a biological community that has formed in response to the physical environment in which they are found and a shared regional climate. Biomes may span more than one continent. Biome is a broader ...

Deserts and Xeric Shrublands Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. Deserts and xeric (ancient Greek xērós, “dry") shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. Ecoregions in thi ...

Flooded Grasslands and Savannas Flooded grasslands and savannas is a terrestrial biome of the WWF biogeographical system, consisting of large expanses or complexes of flooded grasslands. These areas support numerous plants and animals adapted to the unique hydrologic regimes ...

Mangrove A mangrove is a shrub or tree that grows in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evolution in several ...

Montane Grasslands and Shrublands Montane grasslands and shrublands is a biome defined by the World Wildlife Fund. The biome includes high elevation grasslands and shrublands around the world. The term "montane" in the name of the biome refers to "high elevation", rather than t ...

Temperate Broadleaf and Mixed Forests Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions. These f ...

, Temperate Conifer Forests,

Tropical and Subtropical Coniferous Forests Tropical and subtropical coniferous forests are a tropical forest habitat type defined by the World Wide Fund for Nature. These forests are found predominantly in North and Central America and experience low levels of precipitation and moderate v ...

, Tropical and Subtropical Dry Broadleaf Forests,

Tropical and Subtropical Grasslands, Savannas and Shrublands Tropical and subtropical grasslands, savannas, and shrublands is a terrestrial biome defined by the World Wide Fund for Nature. The biome is dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical ...

, and

Tropical and Subtropical Moist Broadleaf Forests Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forest, is a subtropical and tropical forest habitat type defined by the World Wide Fund for Nature. Description TSMF is generally found in large, disco ...

. The ecoregion

Rock and Ice ''Rock & Ice'' is a magazine published by Outside focusing on rock and ice climbing. The first issue came out in March 1984. The first publisher was Neal Kaptain. George Bracksieck worked for him, beginning in January 1984, and the two became e ...

is not included under any specific biome or biogeographic realm.

Freshwater ecoregions

Freshwater ecoregions An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of l ...

of the world have been defined as "a large area encompassing one or more freshwater systems with a distinct assemblage of natural freshwater communities and species. The freshwater species, dynamics, and environmental conditions within a given ecoregion are more similar to each other than to those of surrounding ecoregions, and together form a conservation unit." The following 14 freshwater ecoregions occur within India. * Upper Indus * Indus Himalayan Foothills * Lower and Middle Indus * Ganges Himalayan Foothills * Middle Brahmaputra * Chin Hills–Arakan Coast * Ganges Delta and Plain * Narmada–Tapti * Northern Deccan Plateau * Southern Deccan Plateau * Southeastern Ghats * Western Ghats * Andaman Islands * Nicobar Islands

Marine ecoregions

Marine ecoregions of the world have been described across the worlds oceans and seas. India's seas are in the

Western Indo-Pacific The Western Indo-Pacific is a biogeographic region of the Earth's seas, comprising the tropical waters of the eastern and central Indian Ocean. It is part of the larger Indo-Pacific, which includes the tropical Indian Ocean, the western and centr ...

marine realm A marine ecoregion is an ecoregion, or ecological region, of the oceans and seas identified and defined based on biogeographic characteristics. Introduction A more complete definition describes them as “Areas of relatively homogeneous speci ...

. This includes the following four provinces and six

. * West and South Indian Shelf province ** Western India ** South India and Sri Lanka * Central Indian Ocean Islands province ** Maldives *

Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line bet ...

province ** Eastern India ** Northern Bay of Bengal * Andaman province ** Andaman and Nicobar Islands

Global 200 ecoregions in India

The following are the ecoregions in India that are included in the Global 200 ecoregions:

Terrestrial

* Chota Nagpur dry deciduous forests (India) * Eastern Deccan Plateau moist forests (old name) or East Deccan moist deciduous forests (current name) (India) *

Eastern Himalayan alpine meadows The Eastern Himalayan alpine shrub and meadows is a montane grasslands and shrublands ecoregion of Bhutan, China, India, Myanmar, and Nepal, which lies between the tree line and snow line in the eastern portion of the Himalaya Range. Sett ...

(

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountai ...

, China, India,

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is ma ...

) *

Eastern Himalayan broadleaf forests The Eastern Himalayan broadleaf forests is a temperate broadleaf forest ecoregion found in the middle elevations of the eastern Himalayas, including parts of Nepal, India, and Bhutan. These forests have an outstanding richness of wildlife. Setting ...

(Bhutan, China, India, Myanmar, Nepal) *

Himalayan subtropical pine forests The Himalayan subtropical pine forests are a large subtropical coniferous forest ecoregion covering portions of Bhutan, India, Nepal, and Pakistan. Geography This huge pine forest stretches for 3000 km across the lower elevations of the grea ...

(Bhutan, India, Nepal,

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

) *

Naga-Manipuri-Chin hills moist forests The Naga-Manipuri-Chin hills moist forests is an ecoregion of India, Bangladesh, and Myanmar, designated by the World Wide Fund for Nature as one of the world's outstanding Global 200 ecoregions. The Global 200 ecoregion includes several ecoregion ...

(India) * Northeast India-Myanmar pine forests (India, Myanmar) * Rann of Kutch seasonal salt marsh (India, Pakistan) *

South Western Ghats moist deciduous forests The South Western Ghats moist deciduous forests is an ecoregion in the Western Ghats of southern India with tropical and subtropical moist broadleaf forests. This biome covers the Nilgiri Hills between elevation of in Kerala, Karnataka and ...

(India) *

Sundarbans mangroves Sundarbans (pronounced ) is a mangrove area in the delta formed by the confluence of the Padma, Brahmaputra and Meghna Rivers in the Bay of Bengal. It spans the area from the Baleswar River in Bangladesh's division of Khulna to the Hooghly Ri ...

(

Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million pe ...

, India) * Terai-Duar savannas and grasslands (Bhutan, India, Nepal) * Tibetan Plateau alpine shrublands and meadows (

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bord ...

, China, India, Pakistan,

Tajikistan Tajikistan (, ; tg, Тоҷикистон, Tojikiston; russian: Таджикистан, Tadzhikistan), officially the Republic of Tajikistan ( tg, Ҷумҳурии Тоҷикистон, Jumhurii Tojikiston), is a landlocked country in Centr ...

) * Western Himalayan broadleaf forests (Afghanistan, India, Nepal, Pakistan)

External links

Ecozones of India

* ttps://web.archive.org/web/20181227182143/http://www.seasonsindia.info/ Seasons, climate, global warming in India

References

{{India topics

Ecoregions An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas o ...

ecoregions An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas o ...