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Augrabies Flat Lizard
''Platysaurus broadleyi'', known commonly as the Augrabies flat lizard, is a species of lizard in the family Cordylidae. The species is endemic to South Africa. Beolens B, Watkins M, Grayson M (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Platysaurus broadleyi'', p. 39). Etymology The specific name, ''broadleyi'' is in honour of African herpetologist Donald George Broadley. The original species description by Branch and Whiting (1997) makes it clear that the correct common name is the Augrabies flat lizard. It is sometimes incorrectly referred to as Broadley's flat lizard because the specific epithet is ''broadleyi''. Geographic range The Augrabies flat lizard has its geographic range for 200 km centred on Augrabies Falls, and west to Pella in the Northern Cape, South Africa. This area includes river valleys along the lower Orange River, Northern Cape Province, and Gordonia District. Habitat The preferred natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augrabies Falls National Park
Augrabies Falls National Park is a national park located around the Augrabies Falls, about 120 km west of Upington in the Northern Cape Province, South Africa. The Augrabies Falls National Park covers an area of 820 km2 and stretches along the Orange River. The area is very arid. The waterfall is about 60 metres high and is awe-inspiring when the river is in flood. The gorge below the falls averages about 240 m deep and runs for 18 kilometres. The gorge provides an impressive example of erosion into a granitic basement. The park was established in 1966. Original Inhabitants The original Khoekhoe people named the waterfall , meaning the "place of great noise". The Khoi and San communities within the greater national park inhabit domed huts called . The huts are ideal for both hot and cold climates. During hot temperatures the tree stems from which the mats are created shrink, which allows gaps to appear – creating a cooling ventilation system. The inverse occurs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange River
The Orange River (from Afrikaans/Dutch language, Dutch: ''Oranjerivier'') is a river in Southern Africa. It is the longest river in South Africa. With a total length of , the Orange River Basin extends from Lesotho into South Africa and Namibia to the north. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Lesotho and between South Africa and Namibia, as well as several provincial borders within South Africa. Except for Upington, it does not pass through any major cities. The Orange River plays an important role in the South African economy by providing water for irrigation and Hydroelectricity, hydroelectric power. The river was named the Orange River in honour of the Dutch ruling family, the House of Orange-Nassau, House of Orange, by the Dutch explorer Robert Jacob Gordon. Other names include simply the word for river, in Khoekhoe language, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Flies
A black fly or blackfly (sometimes called a buffalo gnat, turkey gnat, or white socks) is any member of the family Simuliidae of the Culicomorpha infraorder. It is related to the Ceratopogonidae, Chironomidae, and Thaumaleidae. Over 2,200 species of black flies have been formally named, of which 15 are extinct. They are divided into two subfamilies: Parasimuliinae contains only one genus and four species; Simuliinae contains all the rest. Over 1,800 of the species belong to the genus ''Simulium''. Most black flies gain nourishment by feeding on the blood of mammals, including humans, although the males feed mainly on nectar. They are usually small, black or gray, with short legs and antennae. They are a common nuisance for humans, and many U.S. states have programs to suppress the black fly population. They spread several diseases, including river blindness in Africa (''Simulium damnosum'' and ''S. neavei'') and the Americas (''S. callidum'' and ''S. metallicum'' in Central ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snout–vent Length
Snout–vent length (SVL) is a morphometric measurement taken in herpetology from the tip of the snout to the most posterior opening of the cloacal slit (vent)."direct line distance from tip of snout to posterior margin of vent" It is the most common measurement taken in herpetology, being used for all amphibians, lepidosaurs, and crocodilia Crocodilia () is an order of semiaquatic, predatory reptiles that are known as crocodilians. They first appeared during the Late Cretaceous and are the closest living relatives of birds. Crocodilians are a type of crocodylomorph pseudosuchia ...ns (for turtles, carapace length (CL) and plastral length (PL) are used instead). The SVL differs depending on whether the animal is struggling or relaxed (if alive), or various other factors if it is a preserved specimen. For fossils, an osteological correlate such as precaudal length must be used. When combined with weight and body condition, SVL can help deduce age and sex. Advantag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scalation
In zoology, a scale (; ) is a small rigid plate made out of keratin that grows out of Vertebrate animals' skin to provide protection. In lepidopterans (butterflies and moths), scales are plates on the surface of the insect wing, made out of chitin instead of keratin, and provide coloration. Scales are quite common and have evolved multiple times through convergent evolution, with varying structure and function. Scales are generally classified as part of an organism's integumentary system. There are various types of scales according to the shape and class of an animal. Fish scales Fish scales are dermally derived, specifically in the mesoderm. This fact distinguishes them from reptile scales paleontologically. Genetically, the same genes involved in tooth and hair development in mammals are also involved in scale development. File:Ganoid scales.png, Ganoid scales on a carboniferous fish '' Amblypterus striatus'' File:Denticules cutanés du requin citron Negaprion brevirostris v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Flat Lizard
The Cape flat lizard or Namaqua flat lizard (''Platysaurus capensis'') is a lizard in the Cordylidae family found in Namibia and South Africa. Description Females and juveniles have a dark brown back with three wide white stripes which run down head to tail. Their bellies are white with a black blotch in the center. Adult males, on the other hand, have the upper half of their body bright blue, sometimes with pale spots or stripes. The back half, including the tail, is dark red. Adults are 5 to 6.6 inches long. Geography This lizard lives in the southwestern part of Africa, in Namibia and South Africa. The Cape flat lizard lives in deserts with many rocks. Habits Cape flat lizards hunt by ambush, waiting under a shady spot for an insect to pass by. It will also eat flowers and berries. Cape flat lizards are shy and often run for cover when threatened. People often see these lizards from a distance on top of rocks. They may live in small groups. Cape flat lizards lay their eggs i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flickr
Flickr ( ) is an image hosting service, image and Online video platform, video hosting service, as well as an online community, founded in Canada and headquartered in the United States. It was created by Ludicorp in 2004 and was previously a common way for amateur and professional photographers to host high-resolution photos. It has changed ownership several times and has been owned by SmugMug since April 20, 2018. Flickr had a total of 112 million registered members and more than 3.5 million new images uploaded daily. On August 5, 2011, the site reported that it was hosting more than 6 billion images. In 2024, it was reported as having shared 10 billion photos and accepting 25 million per day. Photos and videos can be accessed from Flickr without the need to register an account, but an account must be made to upload content to the site. Registering an account also allows users to create a profile page containing photos and videos that the user has uploaded and also grants the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kestrel
The term kestrel (from , derivative from , i.e. ratchet) is the common name given to several species of predatory birds from the falcon genus ''Falco''. Kestrels are most easily distinguished by their typical hunting behaviour which is to hover at a height of around over open country and swoop down on ground prey, usually small mammals, lizards or large insects, while other falcons are more adapted for active hunting during flight. Description Most species termed kestrels appear to form a distinct clade among the falcons, as suggested by comparison of mtDNA cytochrome ''b'' sequence data and morphology. This seems to have diverged from other ''Falco'' around the Miocene–Pliocene boundary (Messinian to Zanclean, or about 7–3.5 mya). The most basal "true" kestrels are three species from Africa and its surroundings which lack a malar stripe, and in one case have—like other falcons but unlike other true kestrels—large areas of grey in their wings. Approximately du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrubland
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It may be the mature vegetation type in a particular region and remain stable over time, or it may be a transitional community that occurs temporarily as the result of a disturbance, such as fire. A stable state may be maintained by regular natural disturbance such as fire or browsing (predation), browsing. Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903. Shrubland species generally show a wide range of adaptations to fire, such as heavy seed production, lignotubers, and fire-induced germination. Botanical structural form In botany and ecology a shrub is defined as a much-branched woody plant less than 8 m high, usually with many plant stem, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Four savanna forms exist; ''savanna woodland'' where trees and shrubs form a light canopy, ''tree savanna'' with scattered trees and shrubs, ''shrub savanna'' with distributed shrubs, and ''grass savanna'' where trees and shrubs are mostly nonexistent.Smith, Jeremy M.B.. "savanna". Encyclopedia Britannica, 5 Sep. 2016, https://www.britannica.com/science/savanna/Environment. Accessed 17 September 2022. Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forests.Manoel Cláudio da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
