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Sciurus Calycinus
The genus ''Sciurus'' contains most of the common, bushy-tailed squirrels in North America, Europe, temperate Asia, Central America and South America. Species The number of species in the genus is subject to change. In 2005, Thorington & Hoffman- whose taxonomic interpretation is followed by the IUCN website- accepted 28 species in the genus: Genus ''Sciurus'' *Subgenus ''Sciurus'' ** Allen's squirrel, ''Sciurus alleni'' ** Arizona gray squirrel, ''Sciurus arizonensis'' **Mexican gray squirrel, ''Sciurus aureogaster'' ** Eastern gray squirrel, ''Sciurus carolinensis'' **Collie's squirrel, ''Sciurus colliaei'' ** Deppe's squirrel, ''Sciurus deppei'' **Japanese squirrel, ''Sciurus lis'' ** Calabrian black squirrel, ''Sciurus meridionalis'' **Mexican fox squirrel, ''Sciurus nayaritensis'' ** Fox squirrel, ''Sciurus niger'' **Peters's squirrel, ''Sciurus oculatus'' **Variegated squirrel, ''Sciurus variegatoides'' **Eurasian red squirrel, ''Sciurus vulgaris'' **Yucatan squirre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Gray Squirrel
The eastern gray squirrel (''Sciurus carolinensis''), also known, particularly outside of North America, as simply the grey squirrel, is a tree squirrel in the genus ''Sciurus''. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator. Widely introduced to certain places around the world, the eastern gray squirrel in Europe, in particular, is regarded as an invasive species. In Europe, ''Sciurus carolinensis'' is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list). This implies that this species cannot be imported, bred, transported, commercialized, or intentionally released into the environment in the whole of the European Union. Distribution ''Sciurus carolinensis'' is native to the eastern and midwestern United States, and to the southerly portions of the central provinces of Canada. The native range of the eastern gray squirrel overlaps with that of the fox squirre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Squirrel
The Japanese squirrel (''Sciurus lis'') is a tree squirrel in the genus ''Sciurus'' endemic to Japan. It was described by Dutch zoologist Coenraad Jacob Temminck in 1844. The Japanese squirrel's range includes the islands of Honshū, Shikoku, and Kyūshū. Recently, populations on south-western Honshū and Shikoku decreased, and those on Kyūshū disappeared. One of the factors affecting the local extinction of this species seems to be forest fragmentation by humans. In certain areas, up to 35% of its diet can come from walnuts. It is possible the resulting dispersion has affected the evolution of larger seed sizes among Japanese walnut ''Juglans ailantifolia'' (synonyms ''J. cordiformis'' and ''J. sieboldiana'' and '' J. mandshurica'' var. ''sachalinensis''), the Japanese walnut ( ja, 鬼胡桃 ''oni-gurumi''), is a species of walnut native to Japan and Sakhalin. It is a de ... populations where Japanese squirrels are present.Tamura, Noriko. “Population Differences and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andean Squirrel
The Andean squirrel (''Sciurus pucheranii'') is a tree squirrel endemic to Colombia where it inhabits montane rain forest and cloud forests of the Cordillera Occidental and Cordillera Central ranges of the Colombian Andes, at elevations between . It is a small species with a body length of about and a similar length tail. It has soft, silky, reddish-brown fur, a darker tail and yellowish-grey underparts. It is thought to be diurnal but has been little studied, and the International Union for Conservation of Nature has rated its conservation status as being data deficient. Description The Andean squirrel is a typical tree squirrel, in its general proportions resembling the Eastern grey squirrel of North America. However, it is much smaller, with a body length of only about , and a tail. Although there are few records of its weight, it appears to be generally between about . It has soft, silky, reddish-brown fur over most of the body, merging to greyish-yellow on the underpar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolivian Squirrel
The Bolivian squirrel (''Sciurus ignitus'') is a tree squirrel that is endemic to South America. Little is known of the species, which may represent a species complex. Description Bolivian squirrels are moderately sized tree squirrels, with a head-body length of , and a tail of similar length again. Adults weigh from . The fur is mostly dark olive with black and yellow ticking and fading to pale grey or whitish on the chest and underparts. There are faint rings of buff-coloured fur around the eyes and distinct patches of buff fur on the backs of the ears. Females have three pairs of teats. Distribution and habitat Bolivian squirrels live along the eastern edge of the Andes from Peru, through Bolivia and Brazil to extreme northern Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Braz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-tailed Squirrel
The red-tailed squirrel (''Sciurus granatensis'') is a species of tree squirrel distributed from southern Central America to northern South America. Distribution It is found in Central and South America ( Colombia, Costa Rica, Ecuador, Panama, and Venezuela) and the Caribbean islands of Trinidad and Tobago and Margarita. According to the Global Register of Introduced and Invasive Species it has also been introduced and is invasive in Cuba, however this refers to a small population found around some parts of the margin of Rio Almendares in Havana, which escaped from the Havana Zoo. Habitat Ranges from in elevation. It inhabits many types of forests, and can be found in picnic grounds. Taxonomy It was recently reclassified as ''Notosciurus granatensis'' in 2015, ''Notosciurus'' being a genus created in 1914 by Joel Asaph Allen for a juvenile of this species. however, the IUCN still puts it as a member of the genus ''Sciurus''. Infraspecific variability This is an extremely var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow-throated Squirrel
The yellow-throated squirrel (''Sciurus gilvigularis'') is a tree squirrel in the genus ''Sciurus'' endemic to South America. It is found in Brazil, Guyana and Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th .... References Naturerve.org Sciurus Mammals of Brazil Mammals of Guyana Mammals of Venezuela Mammals described in 1842 {{Squirrel-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Squirrel
The Brazilian squirrel (or Guianan squirrel) (''Sciurus aestuans'') is a tree squirrel in the genus ''Sciurus'' endemic to South America. It is found in South-eastern Colombia, Brazil, Guyana, French Guiana, Suriname and Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th .... It is a dark brown squirrel that feeds mainly on fruits and nuts, but can also prey on eggs and the young of birds. References * John F. Eisenberg and Kent H. Redford, 2000. Mammals of Neotropics: Ecuador, Bolivia and Brazil. Sciurus Mammals of Brazil Mammals of French Guiana Mammals of Guyana Mammals of Suriname Mammals of Venezuela Mammals described in 1766 Taxa named by Carl Linnaeus {{Squirrel-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abert's Squirrel
Abert's squirrel or the tassel-eared squirrel (''Sciurus aberti'') is a tree squirrel in the genus ''Sciurus'' native to the southern Rocky Mountains from the United States to the northern Sierra Madre Occidental of Mexico, with concentrations found in Arizona, New Mexico, and southwestern Colorado. It is closely associated with, and largely confined to, mature ponderosa pine forests. It is named in honor of the American naturalist John James Abert; nine subspecies are recognised. It is recognizable by its tufted ears, gray color, pale underparts and rufous patch on the lower back. The squirrel feeds on the seeds and cones of the Mexican pinyon and the ponderosa pine when they are available, but will also take fungi, buds, bark, and carrion. Breeding normally occurs in summer, with a spherical nest being built high in the canopy. Etymology Abert's squirrel is named after Colonel John James Abert, an American naturalist and military officer who headed the Corps of Topographical En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yucatan Squirrel
The Yucatan squirrel (, ''Sciurus yucatanensis''), originally named the Yucatan gray squirrel, also once named the Campeche squirrel, is a tree squirrel in the genus ''Sciurus'' found in the Yucatán Peninsula and adjacent areas. It is native to northern Belize, northeastern Guatemala, and southeast Mexico. Biology The Yucatan squirrel lives in dry deciduous and evergreen forests, semiarid pine-oak woodlands, and secondary forest growing in formerly logged areas. They are found in lowlands below an altitude of . They are active during the day and rest during the night, spending most of their time in trees. They are most active in the early morning, but may be seen sunning on a branch later in the day. Their dreys (or nests), to be found in branches high up in the trees, are built from leaves and twigs. Their food consists of soft fruit, nuts and seeds, whilst Reid in 2009 concluded that their main diet consists of flowers, buds, and shoots. Females generally give birth to two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Squirrel
The red squirrel (''Sciurus vulgaris'') is a species of tree squirrel in the genus ''Sciurus'' common throughout Europe and Asia. The red squirrel is an arboreal, primarily herbivorous rodent. In Great Britain, Ireland, and in Italy numbers have decreased drastically in recent years. This decline is associated with the introduction by humans of the eastern grey squirrel (''Sciurus carolinensis'') from North America. However, the population in Scotland is stabilising due to conservation efforts, awareness and the increasing population of the pine marten, a European predator that selectively controls grey squirrels. Description The red squirrel has a typical head-and-body length of , a tail length of , and a mass of . Males and females are the same size. The red squirrel is somewhat smaller than the eastern grey squirrel which has a head-and-body length of and weighs between . The long tail helps the squirrel to balance and steer when jumping from tree to tree and running ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variegated Squirrel
The variegated squirrel (''Sciurus variegatoides'') is a tree squirrel in the genus ''Sciurus'' found in Costa Rica, El Salvador, Guatemala, Honduras, southern Mexico, Nicaragua, and Panama. Fifteen subspecies are recognised. It is a common squirrel and the International Union for Conservation of Nature has rated it a "least-concern species". Variegated squirrels kept as pets in Germany have been implicated in the transmission of a bornavirus to humans from which three people have died. Description The variegated squirrel is a medium-sized squirrel; the head-and-body length is about with a tail of much the same length. It weighs about . The several subspecies differ in appearance and there is often a considerable variation between the appearances of individuals in the same population. The dorsal colouration varies between dark brown to yellowish grey. The neck tends to be darker than other parts and there is often a paler patch behind the ears. The underparts are usually som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peters's Squirrel
Peters's squirrel (''Sciurus oculatus'') is a tree squirrel in the genus ''Sciurus'' endemic to Mexico. It was first described by the German naturalist and explorer Wilhelm Peters in 1863. Three subspecies are recognised. It is a common species, and the IUCN has rated its conservation status as being of "least concern". Description Peters's squirrel is a large, mainly arboreal squirrel. The head-and-body length is with a tail of about , and a weight of around . The colouring varies somewhat between the subspecies but it is generally grey dorsally, the hairs having dark brown or black bases, and white or cream ventrally. The upper part of the tail is blackish while the underside is dark with white tips to the hairs. There is a pale ring of skin around the eyes, and an important identifying feature is the dentition, with one fewer upper premolars than other related species. Distribution and habitat This squirrel is endemic to Mexico where it is found in the provinces of Guanajuat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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