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Sitana Devakai .
''Sitana devakai'' (Devaka's fan-throated lizard) is an endemic species of agamid lizards recently found from Sri Lanka. The species was first found from Puttalama district. The lizard is also known to found in Tamil Nadu of India, but not given valid identification. The species was named in honor of Dr. Devaka K. Weerakoon, who is a conservation biologist. He is a Professor of Zoology in University of Colombo (Buddhih Sarvatra Bhrajate) , mottoeng = ''Wisdom Enlightens'' , established = , endowment = LKR 1.461 billion Descriptions The species was considered mainly as a subspecies or a color variation of much broader distributed '' Sitana ponticeriana''. The lizard can be found in open scrub jungles. ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agamid
Agamidae is a family of over 300 species of iguanian lizards indigenous to Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards. Overview Phylogenetically, they may be sister to the Iguanidae, and have a similar appearance. Agamids usually have well-developed, strong legs. Their tails cannot be shed and regenerated like those of geckos (and several other families such as skinks), though a certain amount of regeneration is observed in some. Many agamid species are capable of limited change of their colours to regulate their body temperature. In some species, males are more brightly coloured than females, and colours play a part in signaling and reproductive behaviours. Although agamids generally inhabit warm environments, ranging from hot deserts to tropical rainforests, at least one species, the mountain dragon, is found in cooler regions. They are particularly diverse in Australia. This group of lizards include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia although some lizards are more closely related to these two excluded groups than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon. Most lizards are quadrupedal, running with a strong side-to-side motion. Some lineages (known as " legless lizards"), have secondarily lost their legs, and have long snake-like bodies. Some such as the forest-dwelling '' Draco'' lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with bright colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit-and-wait predators; many smaller species eat insects, while the Komodo eats mamma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its List of cities in Sri Lanka, largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese people, Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long establ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puttalama
Puttalam ( si, පුත්තලම, translit=Puttalama; ta, புத்தளம், translit=Puttaḷam) is the largest town in Puttalam District, North Western Province, Sri Lanka. Puttalam is the administrative capital of the Puttalam District and governed by an Urban Council. Climate Under the Köppen climate classification, Pattalam has a tropical savanna climate with a short dry season from June to September and a second dry season from January to March. The wet season is mainly from October to December. Temperatures remain steady throughout the year with little variations in between. Energy Seguwantivu Wind Power (Private) Limited an Indian firm invests US$37 million and maintains 25 wind turbines which produce 20 MW s of electricity in Puttalam Seguwantivu region Religion Puttalam is a multi-cultural and multi-religious town. (86%) of Puttalam's resident's religion is Islam, urban area's are dominated by them. While Buddhist and Christians are significant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamil Nadu
Tamil Nadu (; , TN) is a state in southern India. It is the tenth largest Indian state by area and the sixth largest by population. Its capital and largest city is Chennai. Tamil Nadu is the home of the Tamil people, whose Tamil language—one of the longest surviving classical languages in the world—is widely spoken in the state and serves as its official language. The state lies in the southernmost part of the Indian peninsula, and is bordered by the Indian union territory of Puducherry and the states of Kerala, Karnataka, and Andhra Pradesh, as well as an international maritime border with Sri Lanka. It is bounded by the Western Ghats in the west, the Eastern Ghats in the north, the Bay of Bengal in the east, the Gulf of Mannar and Palk Strait to the south-east, and the Indian Ocean in the south. The at-large Tamilakam region that has been inhabited by Tamils was under several regimes, such as the Sangam era rulers of the Chera, Chola, and Pandya c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations average to between 73–55 ka.", "Modern human beings—''Homo sapiens''—originated in Africa. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Colombo
(Buddhih Sarvatra Bhrajate) , mottoeng = ''Wisdom Enlightens'' , established = , endowment = LKR 1.461 billionUniversity System at a Glance , chancellor = Ven. Muruththettuwe Ananda Thero , vice_chancellor = Professor H.D. Karunaratne , head_label = , head = , city = , country = Sri Lanka , students = 37,636 , undergrad = 19,216 , postgrad = 10,678 , administrative_staff = 88 , faculty = 843 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitana Ponticeriana
The Pondichéry fan-throated lizard (''Sitana ponticeriana'') is a species of agamid lizard found in eastern peninsular India. It was earlier thought to be widespread but studies in 2016 resulted in the splitting of the group into several species placed in two genera. The genus ''Sitana'' has an enlarged projecting scale on the posterior side of the hind thigh which is absent in the sister genus ''Sarada''. The species is found mostly on the ground in open ground patches in thin forests. When disturbed this lizard sometimes runs with a bipedal gait. Descriptions Upper head-scales small, sharply keeled; ''canthus rostralis'' and supraciliary edge sharp, with much enlarged scales. Dorsal scales larger than ventrals, with sharp keels forming straight longitudinal lines; lateral scales smallest, uniform or intermixed with scattered enlarged ones. The fore limb does not extend on to the vent, if laid backwards; the hind limb reaches to the orbit, if laid forwards; the lower thigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitana
''Sitana'' is a genus of lizards, collectively known as the fan-throated lizards, from the family Agamidae. They are found in Nepal, India, Sri Lanka and Pakistan. The genus comprises fourteen species, including several recently discovered species, such as two new species from Sri Lanka. In 2016, a new genus named ''Sarada'' was erected, consisting of one former ''Sitana'' species and two newly described ones. ''Sarada'' is the sister genus of ''Sitana''. Together they form a clade which sister group is ''Otocryptis''. Description ''Sitana'' are small to medium-sized lizards. They are ground dwellers, primarily eating insects but also mollusks and plant seeds. Males measure and females in snout–vent length. In an example of convergent evolution, males have prominent dewlaps, similar to anoles, which are used in communication during the breeding season. The dewlap may be small to large, depending on the species. Females lack the dewlap. Species There are fourteen species that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Sri Lanka
This is a list of reptiles of Sri Lanka. The reptilian diversity in Sri Lanka is higher than the diversity of other vertebrates such as mammals and fish with 181 reptile species. All extant reptiles are well documented through research by many local and foreign scientists and naturalists. Sri Lankan herpetologist, Anslem de Silva largely studied the biology and ecology of Sri Lanka snakes, where he documented 96 species of land and sea snakes. Five genera are endemic to Sri Lanka - ''Aspidura'', ''Balanophis'', ''Cercaspis'', ''Haplocercus'', and ''Pseudotyphlops''. Out of them only five of the land snakes are considered potentially deadly and life threatening to humans. Among snakes, 54 are endemic to Sri Lanka. The total increased to 107 with new descriptions of ''Dendrelaphis'', ''Rhinophis'', ''Aspidura'' and ''Dryocalamus''. Lizard diversity in the island has been documented and studied by many local scientists and researchers such as Imesh Nuwan Bandara, Kalana Maduwage, Anj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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