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Spalax (genus)
''Spalax'' is a genus of rodent in the family Spalacidae, subfamily ''Spalacinae'' (blind mole-rats). It is one of two extant genera in the subfamily Spalacinae, alongside ''Nannospalax''.'''' Species in this genus are found in eastern Europe and western & central Asia. They are completely blind and have a subterranean lifestyle. Taxonomy Prior to 2013, ''Spalax'' was widely considered the only member of Spalacinae, with all blind mole-rat species being grouped within it. However, phylogenetic and morphological evidence supported some of the species within it forming a distinct lineage that diverged from the others during the Late Miocene, when a marine barrier formed between Anatolia and the Balkans. These species were reclassified into the genus ''Nannospalax'', making ''Spalax'' one of two extant spalacine genera.'''' Species of genus ''Spalax'' *Mehely's blind mole-rat'', S. antiquus'' * Sandy blind mole-rat, ''S. arenarius'' * Giant blind mole-rat, ''S. giganteus'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Blind Mole-rat
The greater blind mole-rat (''Spalax microphthalmus'') is a species of rodent in the family Spalacidae. It is found in Russia and Ukraine. Description The greater blind mole-rat is tailless. The eyes are covered by a membrane of skin and have atrophied lens cells enclosed in a vesicle and a retinal layer. It has prominent incisor teeth, which are used for burrowing. The fur is greyish, but can vary in color. It can grow to a size of and weigh up to . Its dental formula is Distribution and habitat The greater blind mole-rat is known from the steppes of Ukraine and from southern Russia between the Dnieper and the Volga rivers. Its range extends northwards to the Oryol to Kursk railway line and southwards to the North Caucasus. It favours lowland habitats with black earth, avoiding sandy or loamy soils. It inhabits steppes and forest steppes, agricultural land, plantations, orchards and gardens and can be a pest. Behavior The greater blind mole-rat is a fossorial species that s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Europe
Eastern Europe is a subregion of the Europe, European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural, and socio-economic connotations. The vast majority of the region is covered by Russia, which spans roughly 40% of the continent's landmass while accounting for approximately 15% of its total population."The Balkans" , ''Global Perspectives: A Remote Sensing and World Issues Site''. Wheeling Jesuit University/Center for Educational Technologies, 1999–2002. It represents a significant part of Culture of Europe, European culture; the main socio-cultural characteristics of Eastern Europe have historically been defined by the traditions of Slavs and Greeks, as well as by the influence of Eastern Christianity as it developed through t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podolsk Blind Mole-rat
The Podolsk blind mole-rat or Podolian mole-rat (''Spalax zemni'') is a species of rodent in the family Spalacidae. It is endemic to western and central Ukraine. Distribution and habitat It has a wide but severely fragmented range throughout Ukraine, ranging from the near the border with Poland south to near the border with Moldova, and east to central Ukraine. It primarily inhabits undeveloped steppe habitat, but also side roads, forest belts, agricultural fields, and even former military firing ranges. Status This species has a highly fragmented population, and the relatively wide range that this species is thought to have throughout Ukraine may be an overestimate for this reason. Data suggests that it has been declining since historical times due to shrinking of the steppe habitat, and it has been considered a rare species since the end of the 19th century. It is thought to be threatened by habitat loss due to cultivation and development, and is classified as Vulnerable o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakhstan Blind Mole-rat
The Kazakhstan blind mole-rat or Ural blind mole-rat (''Spalax uralensis'') is a species of rodent in the family Spalacidae. It is endemic to Kazakhstan, along the Ural River basin and the flood plains of the Uil, Temir, and Emba rivers. Whereas the species inhabits an area approximately 100,000 km2 in size, the International Union for Conservation of Nature (IUCN) describes ''S. uralensis'' as rare and its habitat prone to overgrazing. In 1993, Puzachenko's morphometric Morphometrics (from Greek μορϕή ''morphe'', "shape, form", and -μετρία ''metria'', "measurement") or morphometry refers to the quantitative analysis of ''form'', a concept that encompasses size and shape. Morphometric analyses are co ... analysis demonstrated that the species was distinct from the giant blind mole-rat (''S. giganteus''). References {{Taxonbar, from=Q1766818 Spalax Mammals of Central Asia Endemic fauna of Kazakhstan Rodents of Asia Mammals described in 1939 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oltenia Blind Mole-rat
The Oltenia blind mole-rat (''Spalax istricus'') is a critically endangered, possibly extinct species of rodent in the family Spalacidae. It is endemic to Romania. Taxonomy Previously described in 1909 by Lajos Méhelÿ as a subspecies of the Balkan mole-rat (''S. graecus''), a 2013 morphological and phylogenetic analysis found it to be a distinct, well-defined species. Its closest taxonomic relations remain unclear due to a lack of genetic material from available specimens. The American Society of Mammalogists and IUCN Red List follow the results of this study. Distribution and habitat This species is restricted to southern Romania, in the historical regions of Oltenia and Muntenia. It inhabits hilly and flat terrain of the Wallachian Plain, covered by steppe or forest-steppe vegetation. It likely inhabits similar habitats to Mehely's blind mole-rat (''S. antiquus''). Status This species is classified as critically endangered or possibly extinct on the IUCN Red List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bukovina Blind Mole-rat
The Bukovina blind mole-rat or (erroneously) the Balkan blind mole-rat (''Spalax graecus'') is a species of rodent in the family Spalacidae found in Romania, Moldova, and Ukraine. Taxonomy The specific epithet ''graecus'', as well as the reference to the Balkans in its former scientific name, both derive from the Type (biology), type specimen, which was initially thought to have been collected in the vicinity of Athens, Greece. However, in 1969 this was found to be erroneous, and the type locality was corrected to the vicinity of Chernivtsi Oblast, Chernovtsy, Ukraine. Formerly, this species was thought to comprise three Disjunct distribution, disjunct subspecies: the type subspecies ''graecus'', inhabiting northern Romania, Moldova, and southwestern Ukraine, Mehely's blind mole-rat (subspecies ''antiquus''), thought to be Endemism, endemic to central Romania, and the possibly Extinction, extinct Oltenia blind mole-rat (subspecies ''istricus''), thought to be endemic to sout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Blind Mole-rat
The giant blind mole-rat (''Spalax giganteus'') is a species of rodent in the family Spalacidae endemic to the North Caucasus region of Russia. It feeds on roots and tubers and lives underground in a burrow that it digs with its teeth. Distribution and habitat The giant blind mole-rat is native to the North Caucasus, Chechnya, and southern Kalmykia located between the northern ends of the Caspian and Black Seas. It is restricted to a range of less than , and its distribution within that area is quite patchy. It lives underground in burrows in damp, sandy soils in semidesert areas, in river valleys, on plains, in shrubby or reedy areas, and in disturbed and cultivated soils. Behaviour The giant blind mole-rat is active all year round. It lives a largely subterranean existence in the burrow that it digs and is believed to be monogamous. Breeding activities usually occur in December and January and females produce litters of two or three young. Besides using its incisor teeth for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandy Blind Mole-rat
The sandy blind mole-rat (''Spalax arenarius'') is an endangered species of rodent in the family Spalacidae. It is endemic to Ukraine. It was first identified by Evdokia Reshetnik in 1939. Distribution and habitat It is restricted to a very small region of southern Ukraine, on sandy habitats along the lower Dnieper River on the Black Sea coastal plain. It inhabits moderately wet, sandy soils with low subterranean waters, in steppes dominated by absinth-grass or absinth-spurge, with sparse vegetation otherwise. It does not inhabit dry feathergrass steppe or moving sands. Status Only about 15,000 to 20,000 mature individuals are thought to exist. The primary segment of the population inhabits the Black Sea Biosphere Reserve, and is thought to have a stable population trend. However, populations outside of this protected area are thought to be declining. The primary threat to this species is habitat conversion by the afforestation Afforestation is the establishment of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mehely's Blind Mole-rat
Mehely's blind mole-rat (''Spalax antiquus'') is an endangered species of rodent in the family Spalacidae. It is endemic to Romania. Taxonomy Previously described in 1909 by Lajos Méhelÿ as a subspecies of the Balkan mole-rat (''S. graecus''), a 2013 morphological and phylogenetic analysis found it and the Oltenia blind mole-rat (''S. istricus'') to be distinct, well-defined species. It is thought to be the sister species to ''S. graecus'', and it is thought that the Carpathian Orogeny led to the separation of both species. The American Society of Mammalogists and IUCN Red List follow the results of this study. Distribution and habitat This species is restricted to central Romania, where it is thought to be an endemic species of the Carpathian Basin. It inhabits steppe and forest-steppe grasslands on the Transylvanian Plain. Its habitats are largely used as pastureland, although it avoids overgrazed pastures. Status This species has suffered a heavy decline in recen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balkans
The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the whole of Bulgaria. The Balkan Peninsula is bordered by the Adriatic Sea in the northwest, the Ionian Sea in the southwest, the Aegean Sea in the south, the Turkish Straits in the east, and the Black Sea in the northeast. The northern border of the peninsula is variously defined. The highest point of the Balkans is Mount Musala, , in the Rila mountain range, Bulgaria. The concept of the Balkan Peninsula was created by the German geographer August Zeune in 1808, who mistakenly considered the Balkan Mountains the dominant mountain system of Southeast Europe spanning from the Adriatic Sea to the Black Sea. The term ''Balkan Peninsula'' was a synonym for Rumelia in the 19th century, the European provinces of the Ottoman Empire. It had a ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatolia
Anatolia, tr, Anadolu Yarımadası), and the Anatolian plateau, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the major part of modern-day Turkey. The region is bounded by the Turkish Straits to the northwest, the Black Sea to the north, the Armenian Highlands to the east, the Mediterranean Sea to the south, and the Aegean Sea to the west. The Sea of Marmara forms a connection between the Black and Aegean seas through the Bosporus and Dardanelles straits and separates Anatolia from Thrace on the Balkan peninsula of Southeast Europe. The eastern border of Anatolia has been held to be a line between the Gulf of Alexandretta and the Black Sea, bounded by the Armenian Highlands to the east and Mesopotamia to the southeast. By this definition Anatolia comprises approximately the western two-thirds of the Asian part of Turkey. Today, Anatolia is sometimes considered to be synonymous with Asian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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