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Tigers
The tiger (''Panthera tigris'') is the largest living cat species and a member of the genus ''Panthera''. It is most recognisable for its dark vertical stripes on orange fur with a white underside. An apex predator, it primarily preys on ungulates, such as deer and wild boar. It is territorial and generally a solitary but social predator, requiring large contiguous areas of habitat to support its requirements for prey and rearing of its offspring. Tiger cubs stay with their mother for about two years and then become independent, leaving their mother's home range to establish their own. The tiger was first scientifically described in 1758. It once ranged widely from the Eastern Anatolia Region in the west to the Amur River basin in the east, and in the south from the foothills of the Himalayas to Bali in the Sunda Islands. Since the early 20th century, tiger populations have lost at least 93% of their historic range and have been extirpated from Western and Central Asia, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengal Tiger
The Bengal tiger is a population of the ''Panthera tigris tigris'' subspecies. It ranks among the biggest wild cats alive today. It is considered to belong to the world's charismatic megafauna. The tiger is estimated to have been present in the Indian subcontinent since the Late Pleistocene, for about 12,000 to 16,500 years. Today, it is threatened by poaching, Habitat loss, loss and Habitat fragmentation, fragmentation of habitat, and was estimated at comprising fewer than 2,500 wild individuals by 2011. None of the ''Tiger Conservation Landscapes'' within its range is considered large enough to support an effective population of more than 250 adult individuals. The Bengal tiger's historical range covered the Indus River valley until the early 19th century, almost all of India, Pakistan, southern Nepal, Bangladesh, Bhutan and southwestern China. Today, it inhabits India, Bangladesh, Nepal, Bhutan and southwestern China. India's tiger population was estimated at 2,603–3,346 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caspian Tiger
The Caspian tiger was a ''Panthera tigris tigris'' population native to eastern Turkey, northern Iran, Mesopotamia, the Caucasus around the Caspian Sea, Central Asia to northern Afghanistan, and the Xinjiang region in western China. Until the Middle Ages, it was also present in Ukraine and southern Russia. It inhabited sparse forests and riverine corridors in this region until the 1970s. This population was regarded as a distinct subspecies and assessed as extinct in 2003. Results of a phylogeographic analysis evinces that the Caspian and Siberian tiger populations shared a common continuous geographic distribution until the early 19th century. Some Caspian tigers were intermediate in size between Siberian and Bengal tigers. It was also called Balkhash tiger, Hyrcanian tiger, Turanian tiger, and Mazandaran tiger ( fa, ). Taxonomy ''Felis virgata'' was a scientific name used by Johann Karl Wilhelm Illiger in 1815 for the greyish tiger in the area surrounding the Caspian Sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panthera Tigris Soloensis
''Panthera tigris soloensis'', known as the Ngandong tiger, is an extinct subspecies of the modern tiger species. It inhabited the Sundaland region of Indonesia during the Pleistocene epoch. Discoveries Fossils of the Ngandong tiger were excavated primarily near the village of Ngandong, hence the common name. Only seven fossils are known, making study of the animal difficult. Description The few remains of the Ngandong tiger suggest that it would have been about the size of a modern Bengal tiger. However, given the size of other remains, it may have been larger than a modern tiger. A large male could have weighed up to , in which case, it would have been heavier than the largest extant tiger subspecies, and similar in size to ''Panthera atrox'' (which could have weighed up to 420 kg), rendering it among the largest felids known to have ever lived. Paleoecology In addition to the remains of the Ngandong tiger, many other fossils from the same era have been discovered in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panthera Tigris Trinilensis
''Panthera tigris trinilensis'', known as the Trinil tiger, is an extinct tiger subspecies dating from about 1.2 million years ago that was found at the locality of Trinil, Java, Indonesia. The fossil remains are now stored in the Dubois Collection of the National Museum of Natural History in Leiden, the Netherlands. Although these fossils have been found on Java, the Trinil tiger is probably not a direct ancestor of the Javan tiger. The Trinil tiger probably became extinct 50,000 years ago. The Bali tiger was also not closely related to the Trinil because of their time differences. It lived in Indonesia, particularly in Java and Trinil, and according to some zoologists, it could be the ancestor of all known Indonesian subspecies. Perhaps, East Asia was a center of the origin of Pantherinae. The oldest tiger fossils found in Early Pleistocene Java show that about two million years ago, tigers were already quite common in East Asia. However, the glacial and interglacial climatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 now one of the widest-ranging mammals in the world, as well as the most widespread suiform. It has been assessed as least concern on the IUCN Red List due to its wide range, high numbers, and adaptability to a diversity of habitats. It has become an invasive species in part of its introduced range. Wild boars probably originated in Southeast Asia during the Early Pleistocene and outcompeted other suid species as they spread throughout the Old World. , up to 16 subspecies are recognized, which are divided into four regional groupings based on skull height and lacrimal bone length. The species lives in matriarchal societies consisting of interrelated females and their young (both male and female). Fully grown males are usually solitary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panthera
''Panthera'' is a genus within the family (biology), family Felidae that was named and described by Lorenz Oken in 1816 who placed all the spotted cats in this group. Reginald Innes Pocock revised the classification of this genus in 1916 as comprising the tiger (''P. tigris''), lion (''P. leo''), jaguar (''P. onca''), and leopard (''P. pardus'') on the basis of common Cranial bones, cranial features. Results of genetic analysis indicate that the snow leopard (formerly ''Uncia uncia'') also belongs to the genus ''Panthera'' (''P. uncia''), a classification that was accepted by IUCN Red List assessors in 2008. The tiger, lion, jaguar and leopard are the only cat species with anatomical structures that enable them to Roar (utterance), roar; the snow leopard cannot. The primary reason for this was formerly assumed to be the incomplete ossification of the hyoid bone. However, new studies show the ability to roar is due to other Morphology (biology), morphological features, especiall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panthera Tigris Tigris
''Panthera tigris tigris'', sometimes referred to as the mainland Asian tiger, is the native tiger subspecies of mainland Asia comprising the following tiger populations: * Bengal tiger — occurs in the Indian Subcontinent from India, Nepal and Bhutan to Bangladesh. * Siberian tiger — inhabits Northeast Asia, from eastern Siberia to Northeast China, and possibly North Korea * South China tiger — occurs in southern China * Indochinese tiger — inhabits forests in Indochina, save for the Malayan Peninsula * Malayan tiger — inhabits Peninsular Malaysia The Caspian tiger inhabited Western and Central Asia A whole-genome sequencing analysis of 32 tiger specimens supported six monophyletic tiger clades and indicated that the most recent common ancestor lived about 110,000 years ago. See also * Bornean tiger * ''Panthera tigris sondaica The Sunda Island tiger (''Panthera tigris sondaica'') is a tiger subspecies native to the Sunda Islands in Indonesia. The name refers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panthera Tigris Acutidens
''Panthera tigris acutidens'' or Wanhsien tiger is an extinct tiger subspecies, which was scientifically described in 1928 based on fossils excavated near Wanhsien in southern China's Sichuan Province. Otto Zdansky named it ''Felis acutidens''. After the fossils were re-examined in 1947, they were attributed to ''Panthera tigris acutidens'' by Dirk Albert Hooijer and Walter W. Granger. Description The ''P. t. acutidens'' fossils from Wanhsien in the collection of the American Museum of Natural History consist of two skulls, a humerus, two metacarpals, a tibia, an astragalus, two calcanea, and five metatarsals, and several parts of jaws. The tibia is long and in diameter. The humerus is long and slightly smaller in width, length and diameter than humeri of Siberian tiger. It would have weighed in body mass. See also * Bornean tiger * ''Panthera tigris soloensis'' * ''Panthera tigris trinilensis'' * ''Panthera zdanskyi ''Panthera zdanskyi'', also known as the Longdan tig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zoolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prey
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate and inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Home Range
A home range is the area in which an animal lives and moves on a periodic basis. It is related to the concept of an animal's territory which is the area that is actively defended. The concept of a home range was introduced by W. H. Burt in 1943. He drew maps showing where the animal had been observed at different times. An associated concept is the utilization distribution which examines where the animal is likely to be at any given time. Data for mapping a home range used to be gathered by careful observation, but nowadays, the animal is fitted with a transmission collar or similar GPS device. The simplest way of measuring the home range is to construct the smallest possible convex polygon around the data but this tends to overestimate the range. The best known methods for constructing utilization distributions are the so-called bivariate Gaussian or normal distribution kernel density methods. More recently, nonparametric methods such as the Burgman and Fox's alpha-hull and Getz a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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