Thol Lake is an artificial lake near Thol village in Kadi in

Mehsana District Mehsana district (alternate spelling "Mahesana") is one of the 33 districts of Gujarat state in western India. Mehsana city is the administrative headquarters of this district. The district has a population of over 1.8 million and an area of ov ...

in the Indian

state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...

Gujarat Gujarat (, ) is a state along the western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the fifth-largest Indian state by area, covering some ; and the ninth ...

. It was constructed as an irrigation tank in 1912. It is a fresh water lake surrounded by marshes. It was declared the Thol Bird Sanctuary in 1988; it is a habitat to 150 species of birds, about 60% are

waterbirds A water bird, alternatively waterbird or aquatic bird, is a bird that lives on or around water. In some definitions, the term ''water bird'' is especially applied to birds in freshwater ecosystems, although others make no distinction from seabi ...

. Many

migratory birds Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by ...

nest and breed in the lake and its periphery. The two most prominent species of birds recorded in the sanctuary are

flamingoes Flamingos or flamingoes are a type of wading bird in the family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas (including the Caribbean) ...

and sarus crane (''Grus antigone''). The sanctuary is also proposed to be declared an

Eco-Sensitive Zone Eco-Sensitive Zones (ESZs) or Ecologically Fragile Areas (EFAs) are areas in India notified by the Ministry of Environment, Forests and Climate Change (MoEFCC), Government of India around Protected Areas, National Parks and Wildlife Sanctuaries ...

, conforming to the

Environment (Protection) Act, 1986 Environment most often refers to: __NOTOC__ * Natural environment, all living and non-living things occurring naturally * Biophysical environment, the physical and biological factors along with their chemical interactions that affect an organism or ...

(29 of 1986), for which draft notification has been prepared.

Topography

The lake drains a catchment area of . It is in a semi-arid zone of the Mehsana district with dominance of dry

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...

vegetation. The climate in the area consists of three seasons:

winter Winter is the coldest season of the year in polar and temperate climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures ...

summer Summer is the hottest of the four temperate seasons, occurring after spring and before autumn. At or centred on the summer solstice, the earliest sunrise and latest sunset occurs, daylight hours are longest and dark hours are shortest, wit ...

and

monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal oscil ...

. The average annual rainfall in the catchment of the lake is with a minimum of and maximum of . The maximum and minimum temperatures recorded in the area are and . The lake is situated near Thol village from Kalol and north-west of

Ahmedabad Ahmedabad ( ; Gujarati: Amdavad ) is the most populous city in the Indian state of Gujarat. It is the administrative headquarters of the Ahmedabad district and the seat of the Gujarat High Court. Ahmedabad's population of 5,570,585 (per t ...

, from

Mehsana Mehsana (), also spelled Mahesana, is a city and municipality in Mehsana district, in the Indian state of Gujarat. Established in 14th century, the city was under Gaekwads of Baroda State from 18th century to the independence of India in 1947 ...

History

The lake was initially built in 1912 as a tank by the Gaekwad regime to provide irrigation facilities to farmers. This established the user rights of the lake water. The operation and management of the lake is under the dual control of the Forest and Irrigation departments of the Government of Gujarat.

Features

The lake has a storage capacity of . Its water spread area is . Lake's shore length is and water depth is shallow.

Thol Wildlife Sanctuary

Thol Wildlife Sanctuary, a shallow water reservoir, situated 25 km (15 mi) northwest of Ahmedabad and most popular birding place near Ahmedabad after

Nal Sarovar Bird Sanctuary Nal Sarovar Bird Sanctuary, consisting primarily of a lake and ambient marshes, is situated about 64 km to the west of Ahmedabad near Sanand Village, in the Gujarat state of India. Mainly inhabited by migratory birds in winter and spri ...

which is about 50 km (30 mi) from Thol Wildlife Sanctuary. Geographically Thol Wildlife Sanctuary falls in

district of North

. Kadi, a

taluka A tehsil (, also known as tahsil, taluka, or taluk) is a local unit of administrative division in some countries of South Asia. It is a subdistrict of the area within a district including the designated populated place that serves as its administr ...

headquarters of the district, is just 22 km (14 mi) away from the Sanctuary. Thol Wildlife Sanctuary is a man-made (made by Sayajirao Gayakvad, Ruler of Baroda) irrigation tank built in 1912 with water storage capacity of 84,000,000 m³ (68,000 ac·ft) and command area of 1450 ha (5.6 mi²) and

catchment A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the ...

area of 153 km² (59 mi²

The wetland is predominated by the open water

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

, which is surrounded by cropland, fallow land and scrub land. Due to its popularity amongst the bird fraternity the area was notified as Sanctuary in November 1988 under Sec. 18 of Wildlife (Protection) Act, 1972. The best time to visit the place is November to February.

Flora

Apart from trees in the peripheral area of the lake, vegetation reported in this wetland consists of emergent and floating aquatic plants of ''

Acacia nilotica ''Vachellia nilotica'', more commonly known as ''Acacia nilotica'', and by the vernacular names of gum arabic tree, babul, thorn mimosa, Egyptian acacia or thorny acacia, is a flowering tree in the family Fabaceae. It is native to Africa, the Mi ...

'', '' A. leucoploea'', ''

Zizyphus ''Ziziphus'' is a genus of about 40 species of spiny shrubs and small trees in the buckthorn family, Rhamnaceae, distributed in the warm-temperate, subtropical and tropical regions of the world. The leaves are alternate, entire, with three promi ...

'', ''

Azadirachta indica ''Azadirachta indica'', commonly known as neem, nimtree or Indian lilac, is a tree in the mahogany family Meliaceae. It is one of two species in the genus ''Azadirachta'', and is native to the Indian subcontinent and most of the countries in Afri ...

'', ''

Ficus ''Ficus'' ( or ) is a genus of about 850 species of woody trees, shrubs, vines, epiphytes and hemiepiphytes in the family Moraceae. Collectively known as fig trees or figs, they are native throughout the tropics with a few species extending in ...

'' sp., ''Salvadora'' sp., ''

Prosopis chilensis ''Prosopis chilensis'' is a species of tree in the genus ''Prosopis'', belonging to the family Fabaceae. It is found in parts of central Chile, southern Peru, Bolivia, and Andean (northwestern) Argentina. Its common names include Chilean mesqui ...

'', and ''

Capparis ''Capparis'' is a flowering plant genus, comprising around 250 species in the family Capparaceae which is included in the Brassicaceae in the unrevised APG II system. These plants are shrubs or lianas and are collectively known as caper shrubs o ...

'' sp. According to the Normal Biological Spectrum (NBS) study of the sanctuary,

drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, an ...

resistant vegetation in the category of Bio-geographiczone – IV consisting of thorny shrubs and trees are found, and also reported are mixed flora of aquatic and marshy plants.

Fauna

Birds

Thol Lake, as a bird sanctuary, an inland wetland and a

protected area Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...

, is known as a very good habitat for

waterfowl Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which in ...

during the

season, extending through the

. According to IBA reports there are 150 species of birds in the sanctuary of which nearly 60% (90 species) are stated to be waterbirds which are mostly wintering birds. The most prominent of these species is the

flamingos Flamingos or flamingoes are a type of wading bird in the family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas (including the Caribbean) ...

. At one time 5-6 thousand flamingos were reported here. Sarus cranes (''Grus antigone''), the tallest of the flying birds, nest here in large numbers. The rich bird life of Thol Wildlife Sanctuary encompasses native as well as migratory birds. Many winter visitors like

great white pelican The great white pelican (''Pelecanus onocrotalus'') also known as the eastern white pelican, rosy pelican or white pelican is a bird in the pelican family. It breeds from southeastern Europe through Asia and Africa, in swamps and shallow lakes. ...

flamingo Flamingos or flamingoes are a type of Wader, wading bird in the Family (biology), family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas ...

s, a variety of waterfowl including

mallard The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa, and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...

s and large numbers of

geese A goose (plural, : geese) is a bird of any of several waterfowl species in the family (biology), family Anatidae. This group comprises the genera ''Anser (bird), Anser'' (the grey geese and white geese) and ''Branta'' (the black geese). Some o ...

, sarus cranes and many other waders are common site at sanctuary. According to the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

categorization, the birds reported in the area are:

greater flamingo The greater flamingo (''Phoenicopterus roseus'') is the most widespread and largest species of the flamingo family. It is found in Africa, the Indian subcontinent, the Middle East, and in southern Europe. Taxonomy The greater flamingo was desc ...

(''Phoenicopterus roseus'') of

least concern A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...

species;

Dalmatian pelican The Dalmatian pelican (''Pelecanus crispus'') is the largest member of the pelican family, and perhaps the world's largest freshwater bird, although rivaled in weight and length by the largest swans. They are elegant soaring birds, with wingspan ...

(''Pelecanus crispus''),

greater spotted eagle The greater spotted eagle (''Clanga clanga''), occasionally called the spotted eagle, is a large bird of prey. Like all typical eagles, it belongs to the family Accipitridae. Its feathered legs indicate it is a member of the subfamily Aquilinae ...

(''Clanga clanga''), sarus crane (''Antigone antigone''), and

Indian skimmer The Indian skimmer or Indian scissors-bill (''Rynchops albicollis'') is one of the three species that belong to the skimmer genus ''Rynchops'' in the family Laridae. They are somewhat tern-like but like other skimmers, have a short upper mandibl ...

(''Rynchops albicollis'') of the vulnerable species; and the

white-rumped vulture The white-rumped vulture (''Gyps bengalensis'') is an Old World vulture native to South and Southeast Asia. It has been listed as Critically Endangered on the IUCN Red List since 2000, as the population severely declined. White-rumped vultures di ...

(''Gyps bengalensis'') and

Indian vulture The Indian vulture (''Gyps indicus'') is an Old World vulture native to India, Pakistan and Nepal. It has been listed as Critically Endangered on the IUCN Red List since 2002, as the population severely declined. Indian vultures died of kidney fa ...

(''Gyps indicus'') of the critically endangered species.

Mammals

Some of the important fauna reported in the area surrounding the lake are: bluebull (''Boselaphus tragocamelus''),

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 ...

(''Canis aureus'') and

blackbuck The blackbuck (''Antilope cervicapra''), also known as the Indian antelope, is an antelope native to India and Nepal. It inhabits grassy plains and lightly forested areas with perennial water sources. It stands up to high at the shoulder. Mal ...

(''Antilope cervicapra'').

References

Bibliography

External links

Thol Wildlife Sanctuary
{{commons category, Thol Lake Bird sanctuaries of Gujarat Lakes of Gujarat Mehsana district Tourist attractions in Mehsana district Ramsar sites in India