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Hyperolius Baumanni
''Hyperolius baumanni'' is a species of frog in the family Hyperoliidae. It is known from the Akwapim-Togo Ranges along the border between Ghana and Togo and from central Ghana. Common name Baumann's reed frog has been coined for this species. Etymology The specific name ''baumanni'' honours Ernst Baumann, a German zoologist (1863–1895) who worked at the German research station in , Togo—the type locality of this species. Description ''Hyperolius baumanni'' is a medium-sized member of its genus, with males measuring and females about in snout–vent length. The dorsum is almost uniformly brown and bears a broad, light dorso-lateral stripe. The pupil is horizontal. Male advertisement call consists of a slow, coarse initial sound, followed by a long, accelerating series of clicks. ''Hyperolius baumanni'' is very similar to '' Hyperolius picturatus'', and is possibly an eastern subspecies of the latter. However, the two have differences in morphology (larger gular flap in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Ahl
Christoph Gustav Ernst Ahl (1 September 1898 – 14 February 1945) was a German zoologist, born in Berlin. He was the director of the department of ichthyology and herpetology in the Museum für Naturkunde. He was also the editor in chief of the review ''Das Aquarium'' from 1927 to 1934. During World War II, Ahl fought in the ranks of the Wehrmacht - in Poland, North Africa, and later, Yugoslavia. He was executed while in refuge in Yugoslavia , common_name = Yugoslavia , life_span = 1918–19921941–1945: World War II in Yugoslavia#Axis invasion and dismemberment of Yugoslavia, Axis occupation , p1 = Kingdom of SerbiaSerbia , flag_p ..., after the partisans found out he was a German. He performed one of the first studies on bearded dragons determining what genus they belong to. Ahl is commemorated in the scientific names of two species of lizards: '' Anolis ahli'' and ''Emoia ahli''.Beolens, Bo; Watkins, Michael; Grayson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperolius Picturatus
''Hyperolius picturatus'' is a species of frog in the family Hyperoliidae. It is found in northern and eastern Sierra Leone, southern Guinea, Liberia, Ivory Coast, and Ghana; its range might extend to Togo. Common names coined for this species are Tanzania reed frog (although it does not occur in Tanzania) and variable montane sedge frog. Taxonomy ''Hyperolius picturatus'' is a very variable species. It might be composed of two cryptic species that occur in sympatry; the eastern form might be conspecific with ''Hyperolius baumanni'' and the western one with '' Hyperolius occidentalis'', possibly representing subspecies. Description Males measure and females in snout–vent length. Males have an hourglass pattern and/or broad dorsolateral stripes. Females have a uniform dorsum and often broad, light dorsolateral stripes and dark flanks. The pupil is horizontal. The male advertisement call consists of an initial sound followed by a series of clicks. Habitat and conservation '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 1931
Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods, but excluding the amniotes (tetrapods with an amniotic membrane, such as modern reptiles, birds and mammals). All extant (living) amphibians belong to the monophyletic subclass Lissamphibia, with three living orders: Anura (frogs and toads), Urodela (salamanders), and Gymnophiona (caecilians). Evolved to be mostly semiaquatic, amphibians have adapted to inhabit a wide variety of habitats, with most species living in freshwater, wetland or terrestrial ecosystems (such as riparian woodland, fossorial and even arboreal habitats). Their life cycle typically starts out as aquatic larvae with gills known as tadpoles, but some species have developed behavioural adaptations to bypass this. Young amphibians generally undergo metamorphosis from an aquatic larval form with gills to an air-breathing ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of Africa
The fauna of Africa are all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna are found in the Afro-tropical realm. Lying almost entirely within the tropics, and stretching equally north and south of the equator creates favorable conditions for variety and abundance of wildlife. Africa is home to many of the world's most recognizable fauna such as lions‚ rhinoceroses‚ cheetahs‚ giraffes‚ antelope, hippopotamuses, leopards, zebras‚ and elephants, among many others. Origins and history of African fauna Whereas the earliest traces of life in fossil record of Africa date back to the earliest times, the formation of African fauna as we know it today, began with the splitting up of the Gondwana supercontinent in the mid-Mesozoic era. After that, four to six faunal assemblages, the so-called African Faunal Strata (AFSs) can be distinguished. The isolation of Africa was broken intermittently by discontinuous "filter routes" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperolius
''Hyperolius'' (commonly known as the African reed frogs or reed frogs) is a large genus of frogs in the family Hyperoliidae from Sub-Saharan Africa. The genus is known to exhibit Sexual dichromatism, a trait that is otherwise rare in frogs. Species Different sources may delimit species differently, and as new species are still being described, different number of species can be found. As of early 2022, ''Amphibian Species of the World'' lists 145 species and ''AmphibiaWeb'' 152 species. The following list follows the ''Amphibian Species of the World'': Nomina inquirenda The following species are considered ''species inquirenda, nomina inquirenda'' (species of doubtful identity): * ''Rappia granulata'' Tornier, 1896 * ''Rappia fimbriata'' Tornier, 1896 * ''Hyperolius laticeps'' Ahl, 1931 * ''Hyperolius thoracotuberculatus'' Ahl, 1931 References Hyperolius, Hyperoliidae Amphibians of Sub-Saharan Africa Amphibian genera Taxonomy articles created by Polbot Long stubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Concern
A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the " Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15,636) in the IUCN database still use the code "LR/lc", which indicates they have not been re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyabobo National Park
Kyabobo National Park (pronounced CHA-bo-bo) is a national park in Ghana. History The reserve was established in 1993 but its boundaries were adjusted several times until September 1999 when the current boundary was fixed. Geography Kyabobo is located in the Oti Region on the border with Togo. The nearest town is Nkwanta. Ghana's second highest mountain, Mount Dzebobo, and the Breast Mountains are contained within the park and offer visitors an impressive view of Lake Volta. Dzebobo means "seen from afar" or "prominent" in the Ewe language. Environment The park is located in a transition zone between tropical rain forest and tree savanna. The Park's wildlife includes African bush elephants, African leopards, African buffalo, waterbuck, several primate species, bushbuck, duikers and, a symbol for the park, the rock hyrax. A survey lists at least 500 species of butterflies and 235 birds. The park has been designated an Important Bird Area (IBA) by BirdLife International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific name, infraspecific ranks, such as variety (botany), variety, may be named. In bacteriology and virology, under standard International Code of Nomenclature of Prokaryotes, bacterial nomenclature and virus clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Selection In Amphibians
Sexual selection in amphibians involves sexual selection processes in amphibians, including frogs, salamanders and newts. Prolonged breeders, the majority of frog species, have breeding seasons at regular intervals where male-male competition occurs with males arriving at the waters edge first in large number and producing a wide range of vocalizations, with variations in depth of calls the speed of calls and other complex behaviours to attract mates. The fitness (biology), fittest males will have the deepest croaks and the best territories, with females making their mate choices at least partly based on the males depth of croaking. This has led to sexual dimorphism, with females being larger than males in 90% of species, males in 10% and males fighting for groups of females. There is a direct competition between males to win the attention of the females in salamanders and newts, with elaborate courtship displays to keep the females attention long enough to get her interested in c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough skin texture due to wart-like parotoid glands tend to be called toads, but the distinction between frogs and toads is informal and purely cosmetic, not from taxonomy (biology), taxonomy or evolutionary history. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest and associated wetlands. They account for around 88% of extant amphibian species, and are one of the five most diverse vertebrate orders. The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar (250Myr, million years ago), but molecular clock, molecular clock dating suggests their divergent evolution, divergence from other amphibians may exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pupil
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina.Cassin, B. and Solomon, S. (1990) ''Dictionary of Eye Terminology''. Gainesville, Florida: Triad Publishing Company. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil. The size of the pupil is controlled by the iris, and varies depending on many factors, the most significant being the amount of light in the environment. The term "pupil" was coined by Gerard of Cremona. In humans, the pupil is circular, but its shape varies between species; some cats, reptiles, and foxes have vertical slit pupils, goats and sheep have horizontally oriented pupils, and some catfish have annular types. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
