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Pseudemys Nelsoni
The Florida red-bellied cooter or Florida redbelly turtle (''Pseudemys nelsoni'') is a species of turtle in the family Emydidae. Etymology The specific name, ''nelsoni'', is in honor of American biologist George Nelson (born 1873). Geographic range ''P. nelsoni'' is endemic to Florida, and southern Georgia. Fossils of ''P. nelsoni'' have also been found along the coast of South Carolina from the Pleistocene Epoch, indicating that the historic range of this species used to extend further north. Today, its northern counterpart, the Northern Red-bellied Cooter (''Psuedemys rubriventris'') occupies this region. Biology The Florida redbelly cooter is mainly herbivorous, and can be found in nearly any type of aquatic habitat. It feeds on a variety of aquatic plants including waterweed ('' Vallisneria'' and '' Elodea''), duckweed ('' Lemna'' and '' Wolffia''), and arrowhead ('' Sagittaria'') species. It reaches particularly high densities in spring runs, and occasionally can be foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archie Carr
Archie Fairly Carr, Jr. (June 16, 1909 – May 21, 1987) was an American herpetologist, ecologist, and conservationist. He was a Professor of Zoology at the University of Florida and an acclaimed writer on science and nature. He brought attention to the world's declining sea turtle populations due to over-exploitation and habitat loss. Wildlife refuges in Florida and Costa Rica have been named in his honor. Biography Born in Mobile, Alabama, to a Presbyterian pastor, Carr grew up in Mobile, Fort Worth, Texas, and Savannah, Georgia. He studied zoology at the University of Florida (UF), eventually specializing in herpetology. He further refined that interest to the study of turtles and eventually became one of the world's foremost authorities on sea turtles. He married Marjorie Harris Carr, a conservationist herself. While a student at UF, he became a member of the Pi Kappa Phi fraternity. From UF, he received bachelor's degree in 1932, M.S. in 1934, and Ph.D. in 1937. He was a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemna
''Lemna'' is a genus of free-floating aquatic plants referred to by the common name "Lemnoideae, duckweed". They are morphologically divergent members of the arum family Araceae. These rapidly growing plants have found uses as a Model organism, model system for studies in community (ecology), community ecology, basic plant biology, ecotoxicology, and production of biopharmaceuticals, and as a source of animal feeds for agriculture and aquaculture. Currently, 14 species of ''Lemna'' are recognised. Taxonomy These duckweeds were previously placed in a separate flowering plant family, the Lemnaceae, but they are now considered to be members of the Araceae. Description ''Lemna'' species grow as simple free-floating Thallus (tissue), thalli on or just beneath the water surface. Most are small, not exceeding 5 mm in length, except ''Lemna trisulca'', which is elongated and has a branched structure. ''Lemna'' thalli have a single root, which distinguishes this genus from the rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Chelonian Trust
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In ''scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle Farm
Turtle farming is the practice of raising turtles and tortoises of various species commercially. Raised animals are sold for use as gourmet food, traditional medicine ingredients, or as pets. Some farms also sell young animals to other farms, either as breeding stock, or more commonly to be raised there to a larger size for subsequent resale.Darrell Senneke,Declared Turtle Trade From the United States - intro page Turtle farms primarily raise freshwater turtles (primarily, Chinese softshell turtles as a food source and Trachemys, sliders and Pseudemys, cooter turtles for the pet trade);Links froDeclared Turtle Trade From the United States - breakdown by species/ref> therefore, turtle farming is usually classified as aquaculture. However, some terrestrial tortoises (e.g. ''Cuora mouhotii'') are also raised on farms for the pet trade. Only three serious attempts are believed to have been made to farm sea turtles. Only one of them, in Cayman Islands, continues to operate. The one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eating
Eating (also known as consuming) is the ingestion of food, typically to provide a heterotrophic organism with energy and to allow for growth. Animals and other heterotrophs must eat in order to survive — carnivores eat other animals, herbivores eat plants, omnivores consume a mixture of both plant and animal matter, and detritivores eat detritus. Fungi digest organic matter outside their bodies as opposed to animals that digest their food inside their bodies. For humans, eating is an activity of daily living. Some individuals may limit their amount of nutritional intake. This may be a result of a lifestyle choice, due to hunger or famine, as part of a diet or as religious fasting. Eating practices among humans Many homes have a large kitchen area devoted to preparation of meals and food, and may have a dining room, dining hall, or another designated area for eating. Most societies also have restaurants, food courts, and food vendors so that people may eat when away f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Trade
International trade is the exchange of capital, goods, and services across international borders or territories because there is a need or want of goods or services. (see: World economy) In most countries, such trade represents a significant share of gross domestic product (GDP). While international trade has existed throughout history (for example Uttarapatha, Silk Road, Amber Road, scramble for Africa, Atlantic slave trade, salt roads), its economic, social, and political importance has been on the rise in recent centuries. Carrying out trade at an international level is a complex process when compared to domestic trade. When trade takes place between two or more states factors like currency, government policies, economy, judicial system, laws, and markets influence trade. To ease and justify the process of trade between countries of different economic standing in the modern era, some international economic organizations were formed, such as the World Trade Organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cusp (dentistry)
A cusp is a pointed, projecting, or elevated feature. In animals, it is usually used to refer to raised points on the crowns of teeth. The concept is also used with regard to the leaflets of the four heart valves. The mitral valve, which has two cusps, is also known as the bicuspid valve, and the tricuspid valve has three cusps. In humans A cusp is an occlusal or incisal eminence on a tooth. Canine teeth, otherwise known as cuspids, each possess a single cusp, while premolars, otherwise known as bicuspids, possess two each. Molars normally possess either four or five cusps. In certain populations the maxillary molars, especially first molars, will possess a fifth cusp situated on the mesiolingual cusp known as the Cusp of Carabelli. Buccal Cusp- One other variation of the upper first premolar is the 'Uto-Aztecan' upper premolar. It is a bulge on the buccal cusp that is only found in Native American Indians, with highest frequencies of occurrence in Arizona. The name is no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudemys Floridana
The coastal plain cooter (''Pseudemys floridana'') or Florida cooter is a species of large herbivorous freshwater turtle in the genus ''Pseudemys''. Biology The species is found within the southeastern coastal plain of the United States, from extreme southeastern Virginia southward through all of Florida and westward to the vicinity of Mobile Bay, Alabama. The nominate race (''P. f. floridana'') occupies most of the species' geographic range but is replaced in the Florida peninsula by the peninsula cooter (''Pseudemys peninsularis''), which is primarily distinguished by differences in head markings. Both races can be distinguished from sympatric ''Pseudemys'' species by the immaculate yellow color of their plastrons and the lack of a U-shaped cusp in the upper jaw (characteristic of the Florida redbelly turtle). The carapace length of the size ranges from typically and the normal weigh is (in the slightly larger females) . The record sized female measured in carapace length. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperature-dependent Sex Determination
Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring. It is only observed in reptiles and teleost fish. TSD differs from the chromosomal sex-determination systems common among vertebrates. It is the most studied type of environmental sex determination (ESD). Some other conditions, e.g. density, pH, and environmental background color, are also observed to alter sex ratio, which could be classified either as temperature-dependent sex determination or temperature-dependent sex differentiation, depending on the involved mechanisms. As sex-determining mechanisms, TSD and genetic sex determination (GSD) should be considered in an equivalent manner, which can lead to reconsidering the status of fish species that are claimed to have TSD when submitted to extreme temperatures instead of the temperature experienced during development in the wild, si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alligator
An alligator is a large reptile in the Crocodilia order in the genus ''Alligator'' of the family Alligatoridae. The two extant species are the American alligator (''A. mississippiensis'') and the Chinese alligator (''A. sinensis''). Additionally, several extinct species of alligator are known from fossil remains. Alligators first appeared during the Oligocene epoch about 37 million years ago. The name "alligator" is probably an anglicized form of ', the Spanish term for "the lizard", which early Spanish explorers and settlers in Florida called the alligator. Later English spellings of the name included ''allagarta'' and ''alagarto''. Evolution Alligators and caimans split in North America during the early Tertiary or late Cretaceous (about 53 million to about 65 million years ago). The Chinese alligator split from the American alligator about 33 million years ago and probably descended from a lineage that crossed the Bering land bridge during the Neogene. The modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malaclemys
The diamondback terrapin or simply terrapin (''Malaclemys terrapin'') is a species of turtle native to the Brackish water, brackish coastal tidal marshes of the Northeastern and southern United States, and in Bermuda. It belongs to the monotypic genus ''Malaclemys''. It has one of the largest ranges of all turtles in North America, stretching as far south as the Florida Keys and as far north as Cape Cod. The name "terrapin" is derived from the Algonquian languages, Algonquian word . It applies to ''Malaclemys terrapin'' in both British English and American English. The name originally was used by early European settlers in North America to describe these brackish-water turtles that inhabited neither freshwater habitats nor the sea. It retains this primary meaning in American English. In British English, however, other semi-aquatic turtle species, such as the red-eared slider, might also be called terrapins. Description The common name refers to the diamond pattern on top of it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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