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Graptemys
''Graptemys'' is a genus of freshwater turtles containing 14 species, commonly known as map turtles. Crother, B. I. (editor) (2017). Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, with Comments Regarding Confidence in Our Understanding.' SSAR Herpetological Circular 43, 1–102 pp. ee page 86 ''Graptemys'' are small to medium-sized turtles that are sexually dimorphic, with females attaining as much as twice the length and ten times the mass as males in some species. Depending on the species, adult males range from 7–16 cm (2.75–6.25 in), adult females 10–29.5 cm (4–11.62 in), and hatchlings 2.5–3.8 cm (1–1.5 in),Powell, Robert, Roger Conant, and Joseph T. Collins (2016). ''Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America''. Boston and New York: Houghton Mifflin Harcourt. xiii + 494 pp. ages 202-209 although some sources indicate female Barbour's map ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
False Map Turtle
The false map turtle (''Graptemys pseudogeographica'') is a species of turtle endemic to the United States. It is a common pet species. Two subspecies are recognized, including the nominotypical subspecies described here. Description Also known as a "sawback" turtle, the turtle has a carapace featuring a vertebral row of low spines, and is serrated on the posterior rim. The carapace is olive to brown in color with light yellowish markings with dark borders. The plastron color varies from cream to yellow and is patterned with dark lines along the seams in juveniles. The body color of the false map turtle is grayish brown to blackish and is marked with light brown, yellow, or whitish stripes. The eye can be brown, light yellow, white, or green and is crossed with a dark bar. Narrow hooked marks behind the eye fuse with dorsal lines on the head and neck. Also, small light-colored spots occur below the eye and on the chin. Geographic range The false map turtle lives in large strea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ringed Map Turtle
The ringed map turtle or ringed sawback (''Graptemys oculifera'') is a species of turtle in the family Emydidae endemic to the southern United States. Geographic range It is frequently found in the Pearl River system in Louisiana and Mississippi. It shares this range with the Pearl River map turtle (''G. pearlensis''). Description Male turtles may attain a carapace length of 10 cm (4 in). Females are larger, and may attain a carapace length of 22 cm (8.5 in). On the carapace are light-colored rings, which are thicker than the rings on '' Graptemys nigrinoda''. Conant, R. 1975. ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition.'' Houghton Mifflin. Boston. xviii + 429 pp. + 48 plates. (hardcover), (paperback). (''Graptemys oculifera'', p. 59 + Plate 8 + Map 17.) References Further reading * Baur, G. 1890. Two New Species of Tortoises from the South. Science 16 (405): 262–263. (''Malacoclemmys oculifera'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbour's Map Turtle
Barbour's map turtle (''Graptemys barbouri'') is a species of turtle in the family Emydidae. The species is native to the southeastern United States. Geographic range ''G. barbouri'' is found in rivers located in southeastern Alabama, the western panhandle of Florida, and southwestern Georgia. Etymology The specific name or epithet, ''barbouri'', is in honor of American herpetologist Thomas Barbour.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Graptemys barbouri'', p. 16). Ownership Owning Barbour's map turtle is illegal in Georgia, Michigan, and Alabama. The limit is two turtles per person in Florida. Like all map turtles, it is under the protection of the Salmonellosis Four-inch Regulation, disallowing ''G. barbouri'' to be sold if it is under the length of 4 in (10 cm). Description Adult male Barbour's map turtles are on average 3.5 to 5.5 in (9� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow-blotched Map Turtle
The yellow-blotched map turtle (''Graptemys flavimaculata''), or yellow-blotched sawback, is a species of turtle in the family Emydidae. It is part of the narrow-headed group of map turtles, and is endemic to the southern United States. Conservation status This species is listed as threatened under the US Endangered Species Act due to a recent decline. This can be attributed to a low reproductive frequency as compared with most other map turtles. A high level of nest mortality due to fish crow predation and river flooding are also attributed to endangerment. Unexpectedly high occurrences of nesting in shaded areas could possibly be attributed to human disturbances on and near sandbars, which raises mortality rates. Human disturbances are primarily boating activities that are popular in the Pascagoula of Mississippi increasing the female turtle's energetic cost of nesting overall preventing their population to grow. Also, its habitat suffers from pollution and agricultural cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Vogt (herpetologist)
Richard Carl "Dick" Vogt (August 06, 1949 – January 17, 2021) was an American herpetologist based in Brazil. He was the director of the ''Centro de Estudos de Quelônios da Amazônia'' (Center for the Study of Amazonian Turtles) at the National Institute of Amazonian Research (INPA). Career Vogt received his PhD in 1978 from the University of Wisconsin-Madison, his dissertation focused on the systematics and ecology of the false map turtle (''Graptemys pseudogeographica''). The same year, he became a Postdoctoral Fellow at Carnegie Museum of Natural History in Pittsburgh. In March 2000, ''Wildlife Conservation'' magazine wrote about Vogt's work in his role as Curator of reptiles and amphibians for the Museum of INPA in Manaus. At the time, his research was focused on working with communities in Mamirauá to monitor and safeguard the population levels of both the six-tubercled Amazon River turtle (''Podocnemis sextuberculata'') and the yellow-headed sideneck turtle (''Podocnemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexually Dimorphic
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York (state)
New York, officially the State of New York, is a state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the 27th-largest U.S. state by area. With 20.2 million people, it is the fourth-most-populous state in the United States as of 2021, with approximately 44% living in New York City, including 25% of the state's population within Brooklyn and Queens, and another 15% on the remainder of Long Island, the most populous island in the United States. The state is bordered by New Jersey and Pennsylvania to the south, and Connecticut, Massachusetts, and Vermont to the east; it has a maritime border with Rhode Island, east of Long Island, as well as an international border with the Canadian provinces of Quebec to the north and Ontario to the northwest. New York City (NYC) is the most populous city in the United States, and around two-thirds of the state's popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Coast Of The United States
The Gulf Coast of the United States, also known as the Gulf South, is the coastline along the Southern United States where they meet the Gulf of Mexico. The coastal states that have a shoreline on the Gulf of Mexico are Texas, Louisiana, Mississippi, Alabama, and Florida, and these are known as the ''Gulf States''. The economy of the Gulf Coast area is dominated by industries related to energy, petrochemicals, fishing, aerospace, agriculture, and tourism. The large cities of the region are (from west to east) Brownsville, Corpus Christi, Houston, Galveston, Beaumont, Lake Charles, Lafayette, Baton Rouge, New Orleans, Gulfport, Biloxi, Mobile, Pensacola, Navarre, St. Petersburg, and Tampa. All are the centers or major cities of their respective metropolitan areas and many of which contain large ports. Geography The Gulf Coast is made of many inlets, bays, and lagoons. The coast is intersected by numerous rivers, the largest of which is the Mississippi River. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippi River
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it flows generally south for to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky and Appalachian mountains. The main stem is entirely within the United States; the total drainage basin is , of which only about one percent is in Canada. The Mississippi ranks as the thirteenth-largest river by discharge in the world. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. Native Americans have lived along the Mississippi River and its tributaries for thousands of years. Most were hunter-gathere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes, which are Superior, Michigan, Huron, Erie, and Ontario and are in general on or near the Canada–United States border. Hydrologically, lakes Michigan and Huron are a single body joined at the Straits of Mackinac. The Great Lakes Waterway enables modern travel and shipping by water among the lakes. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is , slightly less than the volume of Lake Baikal (, 22–23% of the world's surface fresh water). Because of their sea-like characteristics, such as rolling waves, sustained wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niche Partitioning
In ecology, niche differentiation (also known as niche segregation, niche separation and niche partitioning) refers to the process by which competing species use the environment differently in a way that helps them to coexist. The competitive exclusion principle states that if two species with identical niches (ecological roles) compete, then one will inevitably drive the other to extinction. This rule also states that two species cannot occupy the same exact niche in a habitat and coexist together, at least in a stable manner. When two species differentiate their niches, they tend to compete less strongly, and are thus more likely to coexist. Species can differentiate their niches in many ways, such as by consuming different foods, or using different areas of the environment. As an example of niche partitioning, several anole lizards in the Caribbean islands share common diets—mainly insects. They avoid competition by occupying different physical locations. Although these liza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryozoa
Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of simple, aquatic invertebrate animals, nearly all living in sedentary colonies. Typically about long, they have a special feeding structure called a lophophore, a "crown" of tentacles used for filter feeding. Most marine bryozoans live in tropical waters, but a few are found in oceanic trenches and polar waters. The bryozoans are classified as the marine bryozoans (Stenolaemata), freshwater bryozoans (Phylactolaemata), and mostly-marine bryozoans (Gymnolaemata), a few members of which prefer brackish water. 5,869living species are known. At least two genera are solitary (''Aethozooides'' and ''Monobryozoon''); the rest are colonial. The terms Polyzoa and Bryozoa were introduced in 1830 and 1831, respectively. Soon after it was named, another group of animals was discovered whose filtering mechanism looked similar, so it was included in Bryozoa until 1869, when the two groups wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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