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Citrus Indica
''Citrus indica'' is a species of hybrid ''Citrus'' known by the common name Indian wild orange.Malik, S. K., R. Chaudhury, O. P. Dhariwal and R. K. Kalia. (2006)Collection and characterization of ''Citrus indica'' Tanaka and ''C. macroptera'' Montr.: wild endangered species of northeastern India.''Genetic Resources and Crop Evolution'' 53 1485-93. It is native to South Asia. Taxonomy This wild orange plant was originally characterized as one of the likely ancestors of today's cultivated citrus fruits, if not the main one. It was considered to be the most "primitive" citrus.Laskar, M. A., M. Hynniewta and C.S. Rao. (2009)In vitro propagation of ''Citrus indica'' Tanaka — An endangered progenitor species.''Indian Journal of Biotechnology'' 8 311-16. However, genomic analysis has revealed it to be a citrus hybrid, with maternal citron ancestry and also mandarin orange and unspecified papeda contributions. It can be used as a citrus rootstock for cultivated citrus. Recent search ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stomach
The stomach is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates. The stomach has a dilated structure and functions as a vital organ in the digestive system. The stomach is involved in the gastric phase of digestion, following chewing. It performs a chemical breakdown by means of enzymes and hydrochloric acid. In humans and many other animals, the stomach is located between the oesophagus and the small intestine. The stomach secretes digestive enzymes and gastric acid to aid in food digestion. The pyloric sphincter controls the passage of partially digested food (chyme) from the stomach into the duodenum, where peristalsis takes over to move this through the rest of intestines. Structure In the human digestive system, the stomach lies between the oesophagus and the duodenum (the first part of the small intestine). It is in the left upper quadrant of the abdominal cavity. The top of the stomach lies ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokrek National Park
Nokrek National Park, the core area of Nokrek Biosphere Reserve, is a national park located approximately 2 km away from Tura Peak in West Garo Hills district of Meghalaya, India. UNESCO added the Nokrek Biosphere Reserve to its list of Biosphere Reserves in May 2009. Along with the Balpakram National Park in South Garo Hills, Nokrek is a hotspot of biodiversity in Meghalaya. Established in 1986, the National Park area comprising around 47.48 square kilometres is looked after by the Northern Nokrek and the Southern Nokrek Ranges of the Meghalaya State Forest Department under the administrative control of the Government of Meghalaya, India. Fauna and flora The Nokrek region has a remnant population of the red panda that has generated curiosity across the world, one of which was accidentally shot by Dr J. Lao in 1960s. However apart from that lone sighting, there has never been any more sightings of the red panda in recent years. The Nokrek area is also an important habitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microclimate
A microclimate (or micro-climate) is a local set of atmospheric conditions that differ from those in the surrounding areas, often with a slight difference but sometimes with a substantial one. The term may refer to areas as small as a few square meters or square feet (for example a garden bed or a cave) or as large as many square kilometers or square miles. Because climate is statistical, which implies spatial and temporal variation of the mean values of the describing parameters, within a region there can occur and persist over time sets of statistically distinct conditions, that is, microclimates. Microclimates can be found in most places but are most pronounced in topographically dynamic zones such as mountainous areas, islands, coastal areas. Microclimates exist, for example, near bodies of water which may cool the local atmosphere, or in heavy urban areas where brick, concrete, and asphalt absorb the sun's energy, heat up, and re-radiate that heat to the ambient air: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slash-and-burn
Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegetation, or "slash", is then left to dry, usually right before the rainiest part of the year. Then, the biomass is burned, resulting in a nutrient-rich layer of ash which makes the soil fertile, as well as temporarily eliminating weed and pest species. After about three to five years, the plot's productivity decreases due to depletion of nutrients along with weed and pest invasion, causing the farmers to abandon the field and move to a new area. The time it takes for a swidden to recover depends on the location and can be as little as five years to more than twenty years, after which the plot can be slashed and burned again, repeating the cycle. In Bangladesh and India, the practice is known as jhum or jhoom. Slash-and-burn is a type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Destruction
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smallpox
Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, making it the only human disease to be eradicated. The initial symptoms of the disease included fever and vomiting. This was followed by formation of ulcers in the mouth and a skin rash. Over a number of days, the skin rash turned into the characteristic fluid-filled blisters with a dent in the center. The bumps then scabbed over and fell off, leaving scars. The disease was spread between people or via contaminated objects. Prevention was achieved mainly through the smallpox vaccine. Once the disease had developed, certain antiviral medication may have helped. The risk of death was about 30%, with higher rates among babies. Often, those who survived had extensive scarring of their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaundice
Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme metabolism, liver dysfunction, or biliary-tract obstruction. The prevalence of jaundice in adults is rare, while jaundice in babies is common, with an estimated 80% affected during their first week of life. The most commonly associated symptoms of jaundice are itchiness, pale feces, and dark urine. Normal levels of bilirubin in blood are below 1.0 mg/ dl (17 μmol/ L), while levels over 2–3 mg/dl (34–51 μmol/L) typically result in jaundice. High blood bilirubin is divided into two types – unconjugated and conjugated bilirubin. Causes of jaundice vary from relatively benign to potentially fatal. High unconjugated bilirubin may be due to excess red blood cell breakdown, large bruises, genetic conditions s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus
''Citrus'' is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia. Various citrus species have been used and domesticated by indigenous cultures in these areas since ancient times. From there its cultivation spread into Micronesia and Polynesia by the Austronesian expansion (c. 3000–1500 BCE); and to the Middle East and the Mediterranean (c. 1200 BCE) via the incense trade route, and onwards to Europe and the Americas. History Citrus plants are native to subtropical and tropical regions of Asia, Island Southeast Asia, Near Oceania, and northeastern Australia. Domestication of citrus species involved much hybridization and introgression, leaving much uncertainty about when and where domestication first happened. A genomic, phylog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garo People
The Garo is a Tibeto-Burman ethnic tribal group from the Indian subcontinent, living mostly in the Indian states of Meghalaya, Assam, Tripura, and Nagaland, and in neighbouring areas of Bangladesh, including Madhupur, Mymensingh, Haluaghat, Dhobaura, Durgapur, Kolmakanda, Jamalpur, Sherpur, Jhinaigati, Nalitabari, Gazini Hills Madhyanagar, Bakshiganj and Sribardi. Historically, the name Garo was used for wide range of inhabitants in southern bank of Brahmaputra but now refers to those who call themselves A•chik Mande (literally " hill people," from ''A•chik'' "bite soil" + ''mande'' "people") or simply A•chik or Mande and the name "Garo" is now being used by outsiders as an exonym. They are the second-largest tribe in Meghalaya after the Khasi and comprise about a third of the local population. Religion Many of the Garo community follow Christianity, with some rural pockets practising traditional animist religion known as Songsarek. It is argued that the indig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garo Hills
The Garo Hills (Pron: ˈgɑ:rəʊ) are part of the Garo-Khasi range in Meghalaya, India. They are inhabited by the Garo people. It is one of the wettest places in the world. The range is part of the Meghalaya subtropical forests ecoregion. Demographics Garo Hills was a single district of British India. The region now comprises five districts. It has a total population of 1,103,542. Tura is the largest town with a population of about 74,858 located at the foothills of often cloud covered Tura peak. The town is centrally located to other popular game and wildlife sanctuaries in the district such as the national parks of Balphakram and Nokrek, and several natural limestone caves (the Siju Cave is among the longest in Asia). These places are rich reserves of natural flora and fauna and a refuge for endangered animals. Religion Languages Society The traditional Garo female dress is a piece of cloth around the waist and a blouse or vest. The men usually wear, in addition to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
