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Nicobar Tree Shrew
The Nicobar treeshrew (''Tupaia nicobarica'') is a treeshrew species within the Tupaiidae. It is endemic to the Nicobar Islands where it inhabits the islands' rain forests. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... Although previously listed as an endangered species, the Nicobar treeshrew is now commonly found in its appropriate habitats. The Nicobar treeshrew was first described by Johann Zelebor in 1868. Habitat The Nicobar treeshrew only occupies the Indian Islands of Great Nicobar and Little Nicobar and can be found on the highest points of these two islands, 640 m above sea level. Narasimmarajan, K. 2014. Recent photographic observation of Nicobar Treeshrew Tupaia nicobarica (Zelebor, 1869) on Great Nicobar Island. Small Mammal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Zelebor
Johann Zelebor (5 February 1815, in Eggenburg, Lower Austria – 19 February 1869, in Vienna) was an Austrian naturalist, illustrator, and zoologist. Prior to 1845 he worked as a carpenter, afterwards serving as a taxidermist at the '' Naturalien-Cabinet'' in Vienna. In 1857 he became an assistant at the aforementioned institution, later receiving a promotion as a "curator-adjunct". He took part in the expedition ''Reise der österreichischen Fregatte Novara um die Erde (1861–1876)'' ("Journey of the Austrian frigate Novara around the Earth, 1861 – 1876"). In addition to the Novara expedition, Zelebor took zoological journeys to the Balkans, Crete and Egypt during his career. Biographisches Lexikon des Kaiserthums Oesterreich Works * Zelebor, Johnann, |
Treeshrew
The treeshrews (or tree shrews or banxrings) are small mammals native to the tropical forests of South and Southeast Asia. They make up the entire order Scandentia, which split into two families: the Tupaiidae (19 species, "ordinary" treeshrews), and the Ptilocercidae (one species, the pen-tailed treeshrew). Though called 'treeshrews', and despite having previously been classified in Insectivora, they are not true shrews, and not all species live in trees. They are omnivores; among other things, treeshrews eat fruit. Treeshrews have a higher brain to body mass ratio than any other mammal, including humans, but high ratios are not uncommon for animals weighing less than . Among orders of mammals, treeshrews are closely related to primates, and have been used as an alternative to primates in experimental studies of myopia, psychosocial stress, and hepatitis. Name The name '' Tupaia'' is derived from '' tupai'', the Indonesian word for squirrel, and was provided by Sir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tupaiidae
Tupaiidae is one of two families of treeshrews, the other family being Ptilocercidae. The family contains three living genera and 19 living species. The family name derives from ''tupai'', the Malay word for treeshrew and also for squirrel which tupaiids superficially resemble. The former genus ''Urogale'' was disbanded in 2011 when the Mindanao treeshrew was moved to ''Tupaia'' based on a molecular phylogeny. Unlike shrews, they possess a fairly large brain for their size. While some research has found treeshrews as the closest living relative to primates, most molecular studies currently find the flying lemurs (colugos) as the sister group to primates despite their gliding specializations. Taxonomy * Genus '' Anathana'' ** Madras treeshrew, ''A. ellioti'' * Genus '' Dendrogale'' ** Bornean smooth-tailed treeshrew The Bornean smooth-tailed treeshrew (''Dendrogale melanura'') is a species of treeshrew in the family Tupaiidae. It is endemic to Borneo. Its natural habitat is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
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] |
Nicobar Islands
The Nicobar Islands are an archipelagic island chain in the eastern Indian Ocean. They are located in Southeast Asia, northwest of Aceh on Sumatra, and separated from Thailand to the east by the Andaman Sea. Located southeast of the Indian subcontinent, across the Bay of Bengal, they are part of India, as the Nicobar district within the union territory of the Andaman and Nicobar Islands. UNESCO has declared the Great Nicobar Island as one of the World Network of Biosphere Reserves. The International Coordinating Council of UNESCO’s Man and the Biosphere Programme (MAB), added the following new sites to the World Network of Biosphere Reserves (WNBR) http://www.unesco.org/new/en/media-services/multimedia/photos/mab-2013/india/. Geography The Nicobar Islands cover a land area of and had a pop ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rain Forest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainforest, but other types have been described. Estimates vary from 40% to 75% of all biotic species being indigenous to the rainforests. There may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the " world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. Definition Rainforest are characterized by a closed and continuous tree canopy, high humidity, the presence of moisture-dependent vegetation, a moist layer of lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of India
This list of mammals of India comprises all the mammal species alive in India today. Some of them are common to the point of being considered vermin while others are exceedingly rare. Many species are known from just a few zoological specimens in museums collected in the 19th and 20th centuries. Many of the carnivores and larger mammals are restricted in their distribution to forests in protected areas, while others live within cities in the close proximity of humans. They range in size from the Eurasian pygmy shrew (''Sorex minutus'') to the Asian elephant (''Elephas maximus''). They include nocturnal small mammals endemic to India such as the Malabar large-spotted civet (''Viverra civettina''). While the status of many of these species is unknown, some are definitely extinct. Populations of many carnivores are threatened. The tiger (''Panthera tigris''), dhole (''Cuon alpinus''), and Malabar large-spotted civet (''Viverra civettina'') are some of the most endangered carnivore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1868
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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