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Cloud-dwelling Spiny Pocket Mouse
The cloud-dwelling spiny pocket mouse (''Heteromys nubicolens'') is a species of rodent (Rodentia) that is endemic to the high elevations of Cordillera de Tilarán and Cordillera de Guanacaste within Costa Rica. It is contained within the ''Heteromys desmarestianus'' species complex. Taxonomy and etymology The cloud-dwelling spiny pocket mouse (''Heteromys nubicolens'') is contained within the subfamily Heteromyinae (spiny pocket mice), which represents a monophyletic grouping within the rodent family Heteromyidae. It was officially designated as a species in 2006 and is in valid taxonomic standing with the Integrated Taxonomic Information System (ITIS). This mouse gets both its common and scientific name from its range distribution within the cloud forests of northwestern Costa Rica. ''Nubicolens'', or cloud-dwelling, is derived from the Lain ''nubes'' (cloud) and ''colo'' (dwell or inhabit). Originally, ''H. nubicolens'' was thought to be contained within ''Heteromys desmare ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/ricochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, Cavia, guinea pigs, and hamsters. Once included wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Formula
Dentition pertains to the development of teeth and their arrangement in the mouth. In particular, it is the characteristic arrangement, kind, and number of teeth in a given species at a given age. That is, the number, type, and morpho-physiology (that is, the relationship between the shape and form of the tooth in question and its inferred function) of the teeth of an animal. Terminology Animals whose teeth are all of the same type, such as most non-mammalian vertebrates, are said to have '' homodont'' dentition, whereas those whose teeth differ morphologically are said to have '' heterodont'' dentition. The dentition of animals with two successions of teeth (deciduous, permanent) is referred to as '' diphyodont'', while the dentition of animals with only one set of teeth throughout life is ''monophyodont''. The dentition of animals in which the teeth are continuously discarded and replaced throughout life is termed ''polyphyodont''. The dentition of animals in which the teeth a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Ontario Museum
The Royal Ontario Museum (ROM) is a museum of art, world culture and natural history in Toronto, Ontario, Canada. It is one of the largest museums in North America and the largest in Canada. It attracts more than one million visitors every year, making it List of most-visited museums by region, the most-visited museum in Canada. It is north of Queen's Park (Toronto), Queen's Park, in the University of Toronto district, with its main entrance on Bloor Street, Bloor Street West. Museum station (Toronto), Museum subway station is named after it and, since a 2008 renovation, is decorated to resemble the ROM's collection at the platform level; Museum station's northwestern entrance directly serves the museum. Established on April 16, 1912, and opened on March 19, 1914, the ROM has maintained close relations with the University of Toronto throughout its history, often sharing expertise and resources. It was under direct control and management of the University of Toronto until 1968, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation In Costa Rica
Deforestation is a major threat to biodiversity and ecosystems in Costa Rica. The country has a rich biodiversity with some 12,000 species of plants, 1,239 species of Butterfly, butterflies, 838 species of birds, 440 species of reptiles and amphibians, and 232 species of mammals, which have been under threat from the effects of deforestation. Agricultural development, cattle ranching, and logging have caused major deforestation as more land is cleared for these activities. Despite government efforts to mitigate deforestation, it continues to cause harm to the environment of Costa Rica by impacting flooding, soil erosion, desertification, and Biodiversity loss, loss of biodiversity. History The land currently being used for forestry in Costa Rica was at one point used by the Cabécar people, Cabécar People. Like many other native cultures, they used Slash-and-burn, slash and burn agriculture to manage their small-scale agriculture. In the early 1900s, companies based in England b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amydria Selvae
''Amydria selvae'' is a moth of the family Acrolophidae. It is found in Costa Rica Costa Rica, officially the Republic of Costa Rica, is a country in Central America. It borders Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as Maritime bo .... Retrieved April 25, 2018. References Moths described in 1986 Acrolophidae {{Acrolophidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheek Pouch
Cheek pouches are pockets on both sides of the head of some mammals between the jaw and the cheek. They can be found on mammals including the platypus, some rodents, and most monkeys, as well as the marsupial koala. The cheek pouches of chipmunks can reach the size of their body when full. Description and function Cheek pouches are located in the thickness of the flange on both sides of the head of some mammals. Monkeys have open cheek pouches within the oral cavity, but they open out in some rodents of America. Hence the name "diplostomes" is associated with them, which means "two mouths." In some rodents, such as hamsters, the cheek pouches are remarkably developed; they form two bags ranging from the mouth to the front of the shoulders. Étienne Geoffroy Saint-Hilaire described that some bats of the genus ''Nycteris'' have an amazing form of cheek pouches, as they have a narrow opening, through which the bat can introduce air, closing the Nasolacrimal canal, nasal canal thro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graminivore
A graminivore is a herbivorous animal that feeds primarily on grass, specifically "true" grasses, plants of the family Poaceae (also known as Graminae). Graminivory is a form of grazing. These herbivorous animals have digestive systems that are adapted to digest large amounts of cellulose, which is abundant in fibrous plant matter and more difficult to break down for many other animals. As such, they have specialized enzymes to aid in digestion and in some cases symbiotic bacteria that live in their digestive track and "assist" with the digestive process through fermentation as the matter travels through the intestines. Graminivores not only consume grasses, but also sedges. Grasses and sedges are both graminoids. Sedges are a part of the Cyperaceae family. Grasses are hollow with stems jointed and nodes, and typically have a round cross-section. Sedges are either round or triangular in cross section and not hollow. Horses, cattle, geese, guinea pigs, hippopotamuses, cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rincón De La Vieja Volcano
Rincón de la Vieja is an active andesitic complex volcano in north-western Costa Rica, about from Liberia, in the province of Guanacaste. Toponymy Its name means "The Old Woman's Corner", or "Old Woman’s Nook" a reference to a local legend about princess Curabanda whose lover Mixcoac, chief of a neighboring enemy tribe, was thrown into the crater by her father Curabande when he learned about their affair. She went on living on the side of the volcano, giving birth to a son. To be with its father, she threw her son into the volcano, too. She continued to live on the volcano and became a recluse living on the mountain, and was credited with powers of healing. Rincón de la Vieja stands above sea level, and its summit is the highest point in Rincón de la Vieja National Park. It erupted most recently in June 2021. The volcano has many fumaroles and hot springs on its slopes. It is formed by felsic lava. Rincón de la Vieja is one of six active Costa Rican volcanoes: the oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monteverde
Monteverde is the twelfth Cantons of Costa Rica, canton of the Puntarenas Province, Puntarenas Provinces of Costa Rica, province of Costa Rica, located in the Cordillera de Tilarán (Tilarán range). Roughly a four-hour drive from the Costa Rican Central Valley, Central Valley, Monteverde is one of the country's major ecotourism destinations, with the Monteverde Cloud Forest Reserve, Reserva Biológica Bosque Nuboso Monteverde (Monteverde Cloud Forest Reserve) being the largest, in addition to several other natural attractions which draw considerable numbers of tourists and naturalists, both from Costa Rica and abroad. National Geographic Society, ''National Geographic'' has called the Monteverde Cloud Forest "the jewel in the crown of cloud forest reserves". ''Newsweek'' ranked Monteverde the world's No. 14 "place to remember before it disappears"; by popular vote in Costa Rica, Monteverde was deemed one of the seven natural wonders of the nation, along with Isla del Coco, Vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology (from Ancient Greek μορφή (morphḗ) "form", and λόγος (lógos) "word, study, research") is the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, color, pattern, size), as well as the form and structure of internal parts like bones and organs, i.e., anatomy. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of the overall structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fried ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data and observed heritable traits of DNA sequences, protein amino acid sequences, and morphology. The results are a phylogenetic tree—a diagram depicting the hypothetical relationships among the organisms, reflecting their inferred evolutionary history. The tips of a phylogenetic tree represent the observed entities, which can be living taxa or fossils. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the taxa represented on the tree. An unrooted tree diagram (a network) makes no assumption about directionality of character state transformation, and does not show the origin or "root" of the taxa in question. In addition to their use for inferring phylogenetic pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
