|
Anomalures
The Anomaluridae are a family of rodents found in central Africa. They are known as anomalures or scaly-tailed squirrels or African flying squirrels. The six extant species are classified into two genera. All anomalurids have membranes between their front and hind legs like those of the boreal flying squirrels, but they are not closely related to the flying squirrels that form the separate tribe Petauristini of the family Sciuridae. They are distinguished by two rows of pointed, raised scales on the undersides of their tails. The anatomy of their heads is quite different from that of the sciurid flying squirrels. By extending their limbs, anomalures transform themselves into a gliding platform that they control by manipulating the membranes and tail. Like North American flying squirrels, these species have a cartilaginous rod that aids them in maintaining the extension of the patagium when in flight; unlike flying squirrels, their cartilage originates at the elbow joint r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anomalurus
''Anomalurus'' is the largest genus in the rodent family Anomaluridae, with four species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), .... It is the only genus in the subfamily Anomalurinae. Species *'' A. beecrofti'' - Beecroft's scaly-tailed squirrel *'' A. derbianus'' - Lord Derby's scaly-tailed squirrel *'' A. pelii'' - Pel's scaly-tailed squirrel *'' A. pusillus'' - dwarf scaly-tailed squirrel Beecroft's scaly-tailed squirrel, ''Anomalurus beecrofti'', is sometimes moved to its own genus, '' Anomalurops'', but Dieterlen (2005) and other authorities consider it to be part of ''Anomalurus''. References *Dieterlen, F. 2005. Family Anomaluridae. Pp. 1532-1534 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Scaly-tailed Squirrel
The dwarf scaly-tailed squirrel (''Anomalurus pusillus'') is a species of rodent in the family Anomaluridae. It is found in Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon and Uganda. The species is nocturnal and arboreal and lives in subtropical or tropical lowland rainforest. Membranes attached to its limbs and tail enable it to glide between trees. This squirrel is currently not considered to be threatened by habitat destruction; "much of the habitat within parts of the known range of this species is relatively intact, and the species is unlikely to be experiencing any significant declines." Description This is a small flying squirrel, with adults having a head-and-body length of with a tail length of . This flying squirrel weighs between . The head is grey, and there is no contrasting colour on the edges of the ears. The fur on the upper parts is very variable in colour, ranging from black, grizzled grey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patagium
The patagium (: patagia) is a membranous body part that assists an animal in obtaining lift when gliding or flying. The structure is found in extant and extinct groups of flying and gliding animals including bats, theropod dinosaurs (including birds and some dromaeosaurs Dromaeosauridae () is a family (biology), family of feathered coelurosaurian Theropoda, theropod dinosaurs. They were generally small to medium-sized feathered carnivores that flourished in the Cretaceous period (geology), Period. The name Drom ...), pterosaurs, gliding mammals, some flying lizards, and flying frogs. The patagium that stretches between an animal's hind limbs is called the uropatagium (especially in bats) or the interfemoral membrane. Bats In bats, the skin forming the surface of the wing is an extension of the skin of the abdomen that runs to the tip of each digit, uniting the forelimb with the body. The patagium of a bat has four distinct parts: #Propatagium: the patagium prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pel's Flying Squirrel
Pel's flying squirrel or Pel's scaly-tailed squirrel (''Anomalurus pelii'') is a species of rodent in the family Anomaluridae. It is found in Liberia, Ivory Coast, and Ghana, where it lives in lowland tropical rainforests. It is named after Hendrik Pel. History The tropical forests of Africa were little explored by Europeans before the nineteenth century. Colugos and flying squirrels had been known from south eastern Asia and gliding marsupials from Australia earlier than this, but the discovery of the scaly-tailed squirrels of equatorial Africa was not made till the 1840s. British zoologist and collector Louis Fraser exploring the Niger basin brought a specimen of Lord Derby's scaly-tailed squirrel (''Anomalurus derbianus'') back to Britain. Compared to the previously known flying squirrels, this had two rows of large scales on the underside of the basal part of its tail. The flying membrane stretched from wrist to ankle and was supported by a cartilaginous strip which had it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord Derby's Scaly-tailed Flying Squirrel
Lord Derby's scaly-tailed squirrel (''Anomalurus derbianus'') is an anomalurid rodent native to Africa. It was named after Edward Smith-Stanley, 13th Earl of Derby. Range and habitat Lord Derby's scaly-tailed squirrel lives in tropical and subtropical rainforests in western and central Africa. It is found in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Kenya, Liberia, Malawi, Mozambique, Nigeria, Sierra Leone, Tanzania, Uganda, and Zambia. Behavior Lord Derby's scaly-tailed squirrel is nocturnal, and will sleep in nests in holes in trees. They live either alone or in pairs. They move around by extending their membrane and gliding from tree to tree. Flights of up to 250 meters (820 feet) have been recorded. They will use the scales on the bottom of their tails to help themselves climb in the trees. Lord Derby's scaly-tailed flying squirrels are mainly herbivorous, eating plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia (continent)
The continent of Australia, sometimes known in technical contexts as Sahul (), Australia-New Guinea, Australinea, or Meganesia to distinguish it from the Australia, country of Australia, is located within the Southern Hemisphere, Southern and Eastern Hemisphere, Eastern hemispheres, near the Maritime Southeast Asia. The continent includes mainland Australia, Tasmania, the island of New Guinea (Papua New Guinea and Western New Guinea), the Aru Islands Regency, Aru Islands, the Ashmore and Cartier Islands, most of the Coral Sea Islands, and some other list of islands of Australia, nearby islands. Situated in the geographical region of Oceania, more specifically in the subregion of Australasia, Australia is the Continent#Area and population, smallest of the seven traditional continents. The continent includes a continental shelf overlain by shallow seas which divide it into several landmasses—the Arafura Sea and Torres Strait between mainland Australia and New Guinea, and Bass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliding Possum
There are many different types of gliding possum, sometimes referred to as :wikt:volplane, volplane possum, flying phalangers, or simply as gliders, endemic to Australia and New Guinea. Taxonomically, gliding possums occupy three genera. ''Acrobates'' – monotypic taxon, monotypic genus * Feathertail glider or pygmy gliding possum, ''Acrobates pygmaeus'' ''Petauroides'' – the greater gliders * Central greater glider, ''Petauroides armillatus'' * Northern greater glider, ''Petauroides minor'' * Southern greater glider, ''Petauroides volans'' ''Petaurus'' * Northern glider, ''Petaurus abidi'' * Savanna glider, ''Petaurus ariel'' * Yellow-bellied glider, ''Petaurus australis'' * Biak glider, ''Petaurus biacensis'' * Sugar glider, ''Petaurus breviceps'' * Mahogany glider, ''Petaurus gracilis'' * Squirrel glider, ''Petaurus norfolcensis'' * Krefft's glider, ''Petaurus notatus'' A characteristic of all species of marsupial gliders is the partially fused (Syndactyly, syndactylous) secon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsupial
Marsupials are a diverse group of mammals belonging to the infraclass Marsupialia. They are natively found in Australasia, Wallacea, and the Americas. One of marsupials' unique features is their reproductive strategy: the young are born in a relatively undeveloped state and then nurtured within a pouch on their mother's abdomen. Extant marsupials encompass many species, including Kangaroo, kangaroos, Koala, koalas, Opossum, opossums, Phalangeriformes, possums, Tasmanian devil, Tasmanian devils, Wombat, wombats, Wallaby, wallabies, and Bandicoot, bandicoots. Marsupials constitute a clade stemming from the last common ancestor of extant Metatheria, which encompasses all mammals more closely related to marsupials than to Placentalia, placentals. The evolutionary split between placentals and marsupials occurred 125-160 million years ago, in the Middle Jurassic-Early Cretaceous period. Presently, close to 70% of the 334 extant marsupial species are concentrated on the Australian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colugo
Colugos (), flying lemurs, or cobegos (), are arboreal gliding euarchontogliran mammals that are native to Southeast Asia. Their closest evolutionary relatives are primates. There are just two living species of colugos: the Sunda flying lemur (''Galeopterus variegatus'') and the Philippine flying lemur (''Cynocephalus volans''). These two species make up the entire family Cynocephalidae () and order Dermoptera, from Ancient Greek δέρμα (''dérma'') "skin" and πτερόν (''pterón'') "wing". Characteristics Colugos are nocturnal, tree-dwelling mammals. Appearance and anatomy They reach lengths of and weigh . They have long, slender front and rear limbs, a medium-length tail, and a relatively light build. The head is small, with large, front-focused eyes for excellent binocular vision, and small rounded ears. The incisor teeth of colugos are highly distinctive; they are comb-like in shape with up to 20 tines on each tooth. The incisors are analogous in app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasia
Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents dates back to classical antiquity, antiquity, but their borders have historically been subject to change. For example, the ancient Greeks originally included Africa in Asia but classified Europe as separate land. Eurasia is connected to Africa at the Suez Canal, and the two are sometimes combined to describe the largest contiguous landmass on Earth, Afro-Eurasia. History Eurasia has been the host of many ancient civilizations, including those based in Mesopotamia, Egypt, the Indus Valley and China. In the Axial Age (mid-first millennium BCE), a continuous belt of civilizations stretched through the Eurasian Subtropics, subtropical zone from the Atlantic to the Pacific. This belt became the mainstream of world history for two millennia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreal Ecosystem
A boreal ecosystem is an ecosystem with a subarctic climate located in the Northern Hemisphere, approximately between 50° and 70°N latitude. These ecosystems are commonly known as taiga and are located in parts of North America, Europe, and Asia. The ecosystems that lie immediately to the south of boreal zones are often called hemiboreal. There are a variety of processes and species that occur in these areas as well. The Köppen symbols of boreal ecosystems are Dfc, Dwc, Dfd, and Dwd. Boreal ecosystems are some of the most vulnerable to climate change. Both loss of permafrost, reductions in cold weather and increases in summer heat cause significant changes to ecosystems, displacing cold-adapted species, increasing forest fires, and making ecosystems vulnerable to changing to other ecosystem types. These changes can cause Climate change feedback cycles, where thawing permafrost and changing ecosystems release more greenhouse gas emissions into the atmosphere causing more clima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoologica Scripta
''Zoologica Scripta'' is a bimonthly peer-reviewed scientific journal on systematic zoology, published by Wiley-Blackwell on behalf of the Norwegian Academy of Science and Letters and the Royal Swedish Academy of Sciences. It was established in 1972. The editor-in-chief since 2023 is Lutz Bachmann ( Natural History Museum at the University of Oslo). According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 3.140, ranking it 12th out of 174 journals in the category "Zoology". See also * '' Arkiv för Zoologi'' References External links * * Zoology journals Royal Swedish Academy of Sciences Academic journals established in 1972 Bimonthly journals Wiley-Blackwell academic journals Academi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
