The Hammar Marshes () are a large

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

complex in southeastern

Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...

that are part of the

Mesopotamian Marshes The Mesopotamian Marshes, also known as the Iraqi Marshes, are a wetland area located in Southern Iraq and in southwestern Iran. The marshes are primarily located on the floodplains of the Euphrates and Tigris rivers bound by the cities of Basra, ...

in the

Tigris–Euphrates river system The Tigris–Euphrates river system is a large river system in Western Asia which discharges into the Persian Gulf. Its principal rivers are the Tigris and Euphrates along with smaller tributaries. From their sources and upper courses in the mou ...

. Historically, the Hammar Marshes extended up to during seasonal floods. They were destroyed during the 1990s by large-scale drainage, dam and dike construction projects. Since 2003, they are recovering following reflooding and destruction of dams.

Geography

The Hammar Marshes are located in the

Dhi Qar Dhi Qar Governorate ( ar, ذي قار, translit=Thi Qār, ) is a governorate in southern Iraq. The provincial capital is Nasiriyah. Prior to 1976 the governorate was known as Muntafiq Governorate. Thi Qar was the heartland of the ancient Iraqi c ...

and

Basra Governorate Basra Governorate ( ar, محافظة البصرة ), also called Basra Province, is a Governorates of Iraq, governorate in southern Iraq, bordering Kuwait to the south and Iran to the east. The capital is the city of Basra, located in the Basrah ...

s. They are bordered in the north by the city of

Al-Qurnah Al-Qurnah (Kurnah or Qurna, meaning connection/joint in Arabic) is a town in southern Iraq about 74 km northwest of Basra, that lies within the conglomeration of Nahairat. Qurna is located at the confluence point of the Tigris and Euphrates river ...

, in the northeast by the

Euphrates River The Euphrates () is the longest and one of the most historically important rivers of Western Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia ( ''the land between the rivers'') ...

, in the southeast by the city of

Basra Basra ( ar, ٱلْبَصْرَة, al-Baṣrah) is an Iraqi city located on the Shatt al-Arab. It had an estimated population of 1.4 million in 2018. Basra is also Iraq's main port, although it does not have deep water access, which is hand ...

, in the south by

saline lake A salt lake or saline lake is a landlocked body of water that has a concentration of salts (typically sodium chloride) and other dissolved minerals significantly higher than most lakes (often defined as at least three grams of salt per litre). ...

s and the Arabian Desert, in the west and northwest by the urban centres of

Nasiriyah Nasiriyah ( ar, ٱلنَّاصِرِيَّة; United States Board on Geographic Names, BGN: ''An Nāşirīyah''; also spelled ''Nassiriya'' or ''Nasiriya'') is a city in Iraq. It is on the lower Euphrates River, Euphrates, about south-southeas ...

and Al-Chibayish. Its main water sources are the Euphrates and its tributaries. Additional water from the

Tigris The Tigris () is the easternmost of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian and Arabian Deserts, and empties into the ...

reached the wetland through overflow from the

Central Marshes The Central or Qurna Marshes are a large complex of wetlands in Iraq that, along with the Hawizeh and Hammar marshes, make up the Mesopotamian Marshes of the Tigris–Euphrates river system. Formerly covering an area of around 3000 square kilome ...

. Until the 1970s, the wetland stretched over and permanently covered an area of that extended to about during seasonal floods. It was the largest in

West Asia Western Asia, West Asia, or Southwest Asia, is the westernmost subregion of the larger geographical region of Asia, as defined by some academics, UN bodies and other institutions. It is almost entirely a part of the Middle East, and includes Ana ...

. The shallow

eutrophic Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplank ...

and slightly

brackish Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuari ...

Lake Hammar Lake Hammar ( ar, هور الحمّار, ) is a saline lake in southeastern part of Iraq within the Hammar Marshes. It has an area of 600–1,350 km2. Water level in the lake fluctuates, with maximum depths varying from 1.8 metres (winter) to ...

is the largest water body in the Hammar Marshes.

Ethnic groups

The main ethnic group in the area is the

Marsh Arabs The Marsh Arabs ( ar, عرب الأهوار ''ʻArab al-Ahwār'' "Arabs of the Marshlands"), also referred to as the Maʻdān ( ar, معدان "dweller in the plains") or Shroog (Iraqi ar, شروق, "those from the east")—the latter two often ...

History

Massive drainage projects were started in the 1990s. Canals and embankments were built that split the once contiguous wetland into two, the West and East Hammar Marshes. An additional barrier between the two parts is the

Rumaila oil field The Rumaila oil field is a super-giant oil field located in southern Iraq, approximately from the Kuwaiti border. Discovered in 1953 by the Basrah Petroleum Company (BPC), an associate company of the Iraq Petroleum Company (IPC), the field is e ...

. By 2000, less than 15% of the Hammar Marshes remained. Following the

2003 U.S. invasion of Iraq The 2003 invasion of Iraq was a United States-led invasion of the Republic of Iraq and the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including 26 ...

, returning Marsh Arabs broke embankments and drainage works, so that the wetland started to reflood. By the following year, vegetation had regrown significantly in the western part of the Hammar Marshes, and wildlife species returned. Recovery of the marshland habitat has been greater than expected, though there are still long-term risks to the habitat's viability due to pollution and water extraction from the Euphrates. The salinity level of the re-flooded wetlands is higher than in typical freshwater wetlands.

Wildlife

Flora

The main plant species in the Hammar Marshes are

hornwort Hornworts are a group of non-vascular Embryophytes (land plants) constituting the division Anthocerotophyta (). The common name refers to the elongated horn-like structure, which is the sporophyte. As in mosses and liverworts, hornworts have a ...

, whorl-leaf watermilfoil,

common reed ''Phragmites australis'', known as the common reed, is a species of plant. It is a broadly distributed wetland grass that can grow up to tall. Description ''Phragmites australis'' commonly forms extensive stands (known as reed beds), which may ...

bulrush Bulrush is a vernacular name for several large wetland grass-like plants *Sedge family (Cyperaceae): **''Cyperus'' **''Scirpus'' **'' Blysmus'' **''Bolboschoenus'' **''Scirpoides'' **''Isolepis'' **''Schoenoplectus'' **''Trichophorum'' *Typhacea ...

sago pondweed ''Stuckenia pectinata'' (Synonym (taxonomy), syn. ''Potamogeton pectinatus''), commonly called sago pondweed or fennel pondweed, and sometimes called ribbon weed, is a Cosmopolitan distribution, cosmopolitan water plant species that grows in fres ...

southern cattail ''Typha domingensis'', known commonly as southern cattail or cumbungi, is a perennial herbaceous plant of the genus ''Typha''. Distribution and habitat It is found throughout temperate and tropical regions worldwide. It is sometimes found as a s ...

and shining pondweed.

Fauna

Bird counts between 2003 and 2005 revealed that the most common species in the Hammar Marshes are little egret,

black-headed gull The black-headed gull (''Chroicocephalus ridibundus'') is a small gull that breeds in much of the Palearctic including Europe and also in coastal eastern Canada. Most of the population is migratory and winters further south, but some birds res ...

slender-billed gull The slender-billed gull (''Chroicocephalus genei'') is a mid-sized gull which breeds very locally around the Mediterranean and the north of the western Indian Ocean (e.g. Pakistan) on islands and coastal lagoons. Most of the population is somewh ...

common gull The common gull or sea mew (''Larus canus'') is a medium-sized gull that breeds in the Palearctic, northern Europe. The closely related short-billed gull is sometimes included in this species, which may be known collectively as "mew gull". Many ...

and

little tern The little tern (''Sternula albifrons'') is a seabird of the family Laridae. It was formerly placed into the genus ''Sterna'', which now is restricted to the large white terns. The genus name is a diminutive of ''Sterna'', "tern". The specific '' ...

. Notable birds include

western marsh harrier The western marsh harrier (''Circus aeruginosus'') is a large harrier, a bird of prey from temperate and subtropical western Eurasia and adjacent Africa. It is also known as the Eurasian marsh harrier. Formerly, a number of relatives were includ ...

, purple heron,

grey heron The grey heron (''Ardea cinerea'') is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia and also parts of Africa. It is resident in much of its range, but some populations from the more northern ...

great cormorant The great cormorant (''Phalacrocorax carbo''), known as the black shag in New Zealand and formerly also known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, and the large cormorant in India, is a w ...

western cattle egret The western cattle egret (''Bubulcus ibis'') is a species of heron (family Ardeidae) found in the tropics, subtropics and warm temperate zones. Most taxonomic authorities lump this species and the eastern cattle egret together (called the catt ...

black-winged stilt The black-winged stilt (''Himantopus himantopus'') is a widely distributed very long-legged wader in the avocet and stilt family (Recurvirostridae). The scientific name ''H. himantopus'' is sometimes applied to a single, almost cosmopolitan speci ...

little grebe The little grebe (''Tachybaptus ruficollis''), also known as dabchick, is a member of the grebe family of water birds. The genus name is from Ancient Greek ''takhus'' "fast" and ''bapto'' "to sink under". The specific ''ruficollis'' is from Latin ...

pied kingfisher The pied kingfisher (''Ceryle rudis'') is a species of water kingfisher widely distributed across Africa and Asia. Originally described by Carl Linnaeus in 1758, it has five recognised subspecies. Its black and white plumage and crest, as well a ...

white-throated kingfisher The white-throated kingfisher (''Halcyon smyrnensis'') also known as the white-breasted kingfisher is a tree kingfisher, widely distributed in Asia from the Sinai east through the Indian subcontinent to China and Indonesia. This kingfisher is a r ...

and

malachite kingfisher The malachite kingfisher (''Corythornis cristatus'') is a river kingfisher which is widely distributed in Africa south of the Sahara. It is largely resident except for seasonal climate-related movements. Taxonomy The malachite kingfisher was de ...

white wagtail The white wagtail (''Motacilla alba'') is a small passerine bird in the family Motacillidae, which also includes pipits and longclaws. The species breeds in much of Europe and the Asian Palearctic and parts of North Africa. It has a toehold in ...

isabelline shrike The isabelline shrike or Daurian shrike (''Lanius isabellinus'') is a member of the shrike family ( Laniidae). It was previously considered conspecific with the red-backed shrike and red-tailed shrike. It is found in an extensive area between ...

bluethroat The bluethroat (''Luscinia svecica'') is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but is now more generally considered to be an Old World flycatcher, Muscicapidae. It, and similar small Europea ...

Iraq babbler The Iraq babbler (''Argya altirostris'') is a species of bird in the family Leiothrichidae, native to reed beds of the Tigris-Euphrates Valley. It is found in Iraq and south-western Iran. This species was formerly placed in the genus ''Turdoides ...

white-eared bulbul The white-eared bulbul (''Pycnonotus leucotis'') is a member of the bulbul family. It is found in south-western Asia from India to the Arabian peninsula. Taxonomy and systematics The white-eared bulbul was originally described in the genus ''Ix ...

graceful prinia The graceful prinia (''Prinia gracilis'') is a small warbler (in some older works it is referred to as graceful warbler). This prinia is a resident breeder in northeastern Africa (the Nile valley in particular) and southern Asia, from Egypt and ...

common chiffchaff The common chiffchaff (''Phylloscopus collybita''), or simply the chiffchaff, is a common and widespread leaf warbler which breeds in open woodlands throughout northern and temperate Europe and the Palearctic. It is a migratory passerine which ...

and

house sparrow The house sparrow (''Passer domesticus'') is a bird of the sparrow family Passeridae, found in most parts of the world. It is a small bird that has a typical length of and a mass of . Females and young birds are coloured pale brown and grey, a ...

. Mammal-oriented surveys carried out between 2009 and 2012 revealed the presence of

jungle cat The jungle cat (''Felis chaus''), also called reed cat, swamp cat and jungle lynx, is a medium-sized cat native to the Middle East, the Caucasus, South and Southeast Asia and southern China. It inhabits foremost wetlands like swamps, littora ...

European otter The Eurasian otter (''Lutra lutra''), also known as the European otter, Eurasian river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia. The most widely distributed member of the otter subfamily (Lutrinae) of th ...

gray wolf The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly ...

red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...

golden jackal The golden jackal (''Canis aureus''), also called common jackal, is a wolf-like canid that is native to Southeast Europe, Southwest Asia, South Asia, and regions of Southeast Asia. The golden jackal's coat varies in color from a pale creamy y ...

, striped hyena,

honey badger The honey badger (''Mellivora capensis''), also known as the ratel ( or ), is a mammal widely distributed in Africa, Southwest Asia, and the Indian subcontinent. Because of its wide range and occurrence in a variety of habitats, it is listed ...

small Asian mongoose Small Asian mongoose is a common name applied to two mammals which were formerly considered to be a single species: * Javan mongoose *Small Indian mongoose The small Indian mongoose (''Urva auropunctata'') is a mongoose species native to Iraq an ...

wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is ...

long-eared hedgehog The long-eared hedgehog (''Hemiechinus auritus'') is a species of hedgehog native to Central Asian countries and some countries of the Middle East. The long-eared hedgehog lives in burrows that it either makes or finds and is distinguished by its ...

Kuhl's pipistrelle Kuhl's pipistrelle (''Pipistrellus kuhlii'') is a species of vesper bat that occurs in large areas of North Africa, Southern Europe and West Asia. It lives in temperate forests, subtropical or tropical dry shrubland, Mediterranean-type shrubby ve ...

Cape hare The Cape hare (''Lepus capensis''), also called the brown hare and the desert hare, is a hare native to Africa and Arabia extending into India. Taxonomy The Cape hare was one of the many mammal species originally described by Carl Linnaeus in ...

Euphrates jerboa The Euphrates jerboa (''Allactaga euphratica'') is a rodent of the family Dipodidae and genus Allactaga. They are characteristically known as hopping rodents. They have been found in Pakistan, Afghanistan, Iran, Iraq, Jordan, Kuwait, Saudi Arabia ...

brown rat The brown rat (''Rattus norvegicus''), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat, Norwegian rat and Parisian rat, is a widespread species of common rat. One of the largest muroids, it is a brown o ...

Asian house shrew The Asian house shrew (''Suncus murinus'') is a shrew species native to South and Southeast Asia that has been listed as Least Concern on the IUCN Red List since 2008 because of its large population and wide distribution. It has been introduced i ...

Etruscan shrew The Etruscan shrew (''Suncus etruscus''), also known as the Etruscan pygmy shrew or the white-toothed pygmy shrew, is the smallest known extant mammal by mass, weighing only about on average. (The bumblebee bat is regarded as the smallest mammal ...

and

house mouse The house mouse (''Mus musculus'') is a small mammal of the order Rodentia, characteristically having a pointed snout, large rounded ears, and a long and almost hairless tail. It is one of the most abundant species of the genus '' Mus''. Althoug ...

References

External links

Iraq Foundation: Eden Again Project
{{Webarchive, url=https://web.archive.org/web/20160304094824/http://www.iraqfoundation.org/projects_new/edenagain/ , date=2016-03-04 Marshes of Iraq Euphrates Environmental issues in Iraq Tigris River Shatt al-Arab basin Ramsar sites in Iraq Mesopotamian Marshes