The Central Asian northern desert is an

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 of l ...

in the

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 this ...

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 ...

, located in the

Central Asia Central Asia, also known as Middle Asia, is a subregion, region of Asia that stretches from the Caspian Sea in the west to western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. It includes t ...

n countries of

Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...

and

Uzbekistan Uzbekistan (, ; uz, Ozbekiston, italic=yes / , ; russian: Узбекистан), officially the Republic of Uzbekistan ( uz, Ozbekiston Respublikasi, italic=yes / ; russian: Республика Узбекистан), is a doubly landlocked cou ...

. The annual precipitation ranges from , the winters are cold at and the summers hot at around . There are a range of habitat types including salt flats, clay desert, rocky desert and some sand desert. The vegetation consists of scanty xeric shrubs including ''

Artemisia Artemisia may refer to: People * Artemisia I of Caria (fl. 480 BC), queen of Halicarnassus under the First Persian Empire, naval commander during the second Persian invasion of Greece * Artemisia II of Caria (died 350 BC), queen of Caria under th ...

'' and ''

Salsola ''Salsola'' is a genus of the subfamily Salsoloideae in the family Amaranthaceae. The genus ''sensu stricto'' is distributed in central and southwestern Asia, North Africa, and the Mediterranean. A common name of various members of this genus and ...

''. The fauna is varied, as well as mammals and birds, there are a large number of reptiles and many species of invertebrate. Some protected areas are included in this

but other parts are being degraded by conversion to

farmland Agricultural land is typically land ''devoted to'' agriculture, the systematic and controlled use of other forms of lifeparticularly the rearing of livestock and production of cropsto produce food for humans. It is generally synonymous with bot ...

overgrazing Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature res ...

and

poaching Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights. Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set a ...

Setting

The Central Asian northern desert occupies southern Kazakhstan and most of Uzbekistan. This ecoregion experiences a typical

cold desert climate The desert climate or arid climate (in the Köppen climate classification ''BWh'' and ''BWk''), is a dry climate sub-type in which there is a severe excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert ...

; January mean temperatures range from to , while July means range from to . On average, precipitation ranges from to annually. The topography of this ecoregion is varied, featuring salty "''

solonchak Solonchak (Russian and Ukrainian: Солончак) is a Reference Soil Group of the World Reference Base for Soil Resources (WRB). It is a pale or grey soil type found in arid to subhumid, poorly drained conditions. The word is Russian for "sal ...

''" deserts with a great number of

salt flats Salt flats, Salt flat, Salt Flats, or Salt Flat may refer to: Geology *Salt pan (geology), a flat expanse of ground covered with salt and other minerals * Dry lake, an ephemeral lakebed that consists of fine-grained sediments infused with alkali sal ...

, clay deserts, rocky deserts, and a small area of sandy desert in the southern portion of the region.

Flora

The vegetation of this ecoregion is dominated by

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

s and semi-shrubs, with a variety of different species adapted to the different soil types found in it. Clay deserts support communities of ''

Anabasis salsa Anabasis (from Greek ''ana'' = "upward", ''bainein'' = "to step or march") is an expedition from a coastline into the interior of a country. Anabase and Anabasis may also refer to: History * '' Anabasis Alexandri'' (''Anabasis of Alexander''), ...

'', ''

orientalis'', and the ''

'' species ''A. terrae albae'', ''A. turanica'', and ''A. gurganica''. The stony deserts support mainly ''

arbusculae formis'' and '' Nanophyton erinaceum'', while the "''solonchaks''" support the semi-shrubs '' Ceratoides papposa'', ''Artemisia terrae albae, var. ''massagetovii'', ''A. santolina'', and ''A. songarica'', shrubs such as ''

Calligonum ''Calligonum'' is a genus of plants in the family Polygonaceae with about 80 species across the Mediterranean Sea region, Asia and North America. Description Plants of the genus ''Calligonum'' are shrubs, diffusely but irregularly branched, wi ...

aphyllum'', ''

Ephedra Ephedra may refer to: * Ephedra (medicine), a medicinal preparation from the plant ''Ephedra sinica'' * ''Ephedra'' (plant), genus of gymnosperm shrubs See also * Ephedrine Ephedrine is a central nervous system (CNS) stimulant that is of ...

lomatolepis'' as well as grasses such as ''

Agropyron ''Agropyron'' is a genus of Eurasian plants in the grass family), native to Europe and Asia but widely naturalized in North America. Species in the genus are commonly referred to as wheatgrass. ; Species * ''Agropyron badamense'' - Tajikistan, ...

fragile''.

Fauna

Mammals of the Central Asian northern desert include the

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 ...

(''Hemiechinus auritus''),

tolai hare The tolai hare (''Lepus tolai'') is a species of hare native to Central Asia, Mongolia, and Northern and Central China. It inhabits semi-desert, steppes, rocky habitats, and forest meadows. It is relatively common, even in areas with heavy hu ...

(''lepus tolai''), various species of

gerbil The Mongolian gerbil or Mongolian jird (''Meriones unguiculatus'') is a small rodent belonging to the subfamily Gerbillinae. Their body size is typically , with a tail, and body weight , with adult males larger than females. The animal is use ...

and

jerboa Jerboas (from ar, جربوع ') are hopping desert rodents found throughout North Africa and Asia, and are members of the family Dipodidae. They tend to live in hot deserts. When chased, jerboas can run at up to . Some species are preyed on b ...

saiga antelope The saiga antelope (, ''Saiga tatarica''), or saiga, is a critically endangered antelope which during antiquity inhabited a vast area of the Eurasian steppe spanning the foothills of the Carpathian Mountains in the northwest and Caucasus in ...

(''Saiga tatarica''), steppe polecat (''Mustela eversmanni''), goitered gazelle (''Gazella subgutturosa ''),

onager The onager (; ''Equus hemionus'' ), A new species called the kiang (''E. kiang''), a Tibetan relative, was previously considered to be a subspecies of the onager as ''E. hemionus kiang'', but recent molecular studies indicate it to be a distinct ...

(''Equus hemonius'') and suslik (''

Spermophilus ''Spermophilus'' is a genus of ground squirrels in the Sciuridae, squirrel family. As traditionally defined the genus was very species-rich, ranging through Europe, Asia and North America, but this arrangement was found to be paraphyletic to ...

'' spp.). Birds of this ecoregion include

wheatear The wheatears are passerine birds of the genus ''Oenanthe''. They were formerly considered to be members of the thrush family, Turdidae, but are now more commonly placed in the flycatcher family, Muscicapidae. This is an Old World group, bu ...

s (''Oenanthe isabellina'', ''O. deserti''), desert warbler (''Sylvia nana''),

brown-necked raven The brown-necked raven (''Corvus ruficollis'') is a larger bird (52–56 cm in length) than the carrion crow though not as large as the common raven. It has similar proportions to the common raven but the bill is not so large or deep and the ...

(''Corvus ruficollis''), the endangered

houbara bustard The houbara bustard (''Chlamydotis undulata''), also known as African houbara, is a relatively small bustard native to North Africa, where it lives in arid habitats. The global population is listed as Vulnerable on the IUCN Red List since 2014. ...

(''Chlamydotis undulata''),

black-bellied sandgrouse The black-bellied sandgrouse (''Pterocles orientalis'') is a medium large bird in the sandgrouse family. The nominate race breeds in Iberia, northwest Africa, the Canary Islands, Turkey, Iran, Cyprus and Israel. The eastern form ''P. o. arenar ...

(''Pterocles orientalis''),

golden eagle The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known bird of p ...

(''Aquila chrysaetos''),

steppe eagle The steppe eagle (''Aquila nipalensis'') is a large bird of prey. Like all eagles, it belongs to the family Accipitridae. The steppe eagle's well-feathered legs illustrate it to be a member of the subfamily Aquilinae, also known as the "booted ...

(''Aquila rapax''),

Egyptian vulture The Egyptian vulture (''Neophron percnopterus''), also called the white scavenger vulture or pharaoh's chicken, is a small Old World vulture and the only member of the genus ''Neophron''. It is widely distributed from the Iberian Peninsula and ...

(''Neophron percnopterus''), and the

saker falcon The saker falcon (''Falco cherrug'') is a large species of falcon. This species breeds from central Europe eastwards across the Palearctic to Manchuria. It is mainly migratory except in the southernmost parts of its range, wintering in Ethiopia ...

(''Falco cherrug''). Numerous reptiles can be found in this ecoregion, including numerous '' Agama'' lizards, Rustamov's skink gekko (''Teratoscincus scincus rustamovi''), Chernov's snake-lizard (''Ophimorus chernovi''), Ferghana sand lizard (''Eremias scripta pherganensis''),

desert monitor The desert monitor (''Varanus griseus'') is a species of monitor lizard of the order Squamata found living throughout North Africa and Central and South Asia. The desert monitor is carnivorous, feeding on a wide range of vertebrates and inverteb ...

(''Varanus griseus'') and the Central Asian cobra (''

Naja oxiana The Caspian cobra (''Naja oxiana''), also called the Central Asian cobra, ladle snake, Oxus cobra, or Russian cobra, is a species of venomous snake in the family Elapidae. The species is endemic to Central Asia. Described by Karl Eichwald in 1831, ...

''). The

invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...

fauna of this ecoregion is quite rich, especially in the sandy deserts, supporting a variety of

grasshopper Grasshoppers are a group of insects belonging to the suborder Caelifera. They are among what is possibly the most ancient living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshopp ...

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

butterflies Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

termite Termites are small insects that live in colonies and have distinct castes (eusocial) and feed on wood or other dead plant matter. Termites comprise the infraorder Isoptera, or alternatively the epifamily Termitoidae, within the order Blattode ...

s and

ant Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22 ...

Conservation status and threats

The conservation status of this ecoregion is listed as "vulnerable", and the main threats to its integrity are conversion of habitat to farmland, over-hunting and poaching and the use of plants for firewood and silk production. Protected areas include the

Barsa-Kelmes Nature Reserve Barsa-Kelmes Nature Reserve ( kk, Барсакелмес мемлекеттік табиғи қорығы, ''Barsakelmes memlekettık tabiği qoryğy'') is a wildlife refuge on the former island of Barsa-Kelmes in Kyzylorda Region of Kazakhstan, ...

on an island in the

Aral Sea The Aral Sea ( ; kk, Арал теңізі, Aral teñızı; uz, Орол денгизи, Orol dengizi; kaa, Арал теңизи, Aral teńizi; russian: Аральское море, Aral'skoye more) was an endorheic basin, endorheic lake lyi ...

, the Kaplankyr reserve, the Ustyurt reserve, and the

Altyn-Emel National Park Altyn-Emel National Park ( kk, Алтынемел саябағы, ''Altynemel saiabağy'' ; rus, Алтын-Эмель национальный парк , ''Altyn-Emel' Natsional'nyy Park'') is a national park in Kazakhstan. It was created in 19 ...

in Kazakhstan.

References

* * {{Paleartic deserts and xeric shrublands Deserts of Central Asia Deserts of Kazakhstan Deserts of Uzbekistan Deserts and xeric shrublands Ecoregions of Kazakhstan Ecoregions of Uzbekistan Ecoregions of Asia * * * Palearctic ecoregions Ecoregions of Kyrgyzstan