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Chipmunks
Chipmunks are small, striped rodents of the family Sciuridae. Chipmunks are found in North America, with the exception of the Siberian chipmunk which is found primarily in Asia. Taxonomy and systematics Chipmunks may be classified either as a single genus, ''Tamias'', or as three genera: ''Tamias'', of which the eastern chipmunk (''T. striatus'') is the only living member; ''Eutamias'', of which the Siberian chipmunk (''E. sibiricus'') is the only living member; and ''Neotamias'', which includes the 23 remaining, mostly western North American, species. These classifications were treated as subgenera due to the chipmunks' morphological similarities. As a result, most taxonomies over the twentieth century have placed the chipmunks into a single genus. However, studies of mitochondrial DNA show that the divergence between each of the three chipmunk groups is comparable to the genetic differences between ''Marmota'' and ''Spermophilus'', so the three genera classifications have be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutamias Sibiricus
The Siberian chipmunk (''Eutamias sibiricus''), also called common chipmunk is native to northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan. It was imported from South Korea and introduced in Europe as a pet in the 1960s. Description Typically the Siberian chipmunk has four white stripes and five dark stripes along the back. It is long, a third of which is the tail. The weight of adults depends on the time of year and food availability. It exhibits slight variations in coloration in different geographic regions. Even though the Siberian chipmunk normally grows to . The Siberian chipmunk exhibits sexual dimorphism, and size and body proportions are the only way to distinguish younger chipmunks from older ones. Its small size may contribute to its relatively short life from two to five years in the wild. However, in captivity it lives up to ten years. Distribution This species is native to Russia in northern European, Siberia to Sakhalin and Kuna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siberian Chipmunk
The Siberian chipmunk (''Eutamias sibiricus''), also called common chipmunk is native to northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan. It was imported from South Korea and introduced in Europe as a pet in the 1960s. Description Typically the Siberian chipmunk has four white stripes and five dark stripes along the back. It is long, a third of which is the tail. The weight of adults depends on the time of year and food availability. It exhibits slight variations in coloration in different geographic regions. Even though the Siberian chipmunk normally grows to . The Siberian chipmunk exhibits sexual dimorphism, and size and body proportions are the only way to distinguish younger chipmunks from older ones. Its small size may contribute to its relatively short life from two to five years in the wild. However, in captivity it lives up to ten years. Distribution This species is native to Russia in northern European, Siberia to Sakhalin and Kuna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotamias Minimus
The least chipmunk (''Neotamias minimus'') is the smallest species of chipmunk and the most widespread in North America. Description It is the smallest species of chipmunk, measuring about in total length with a weight of . The body is gray to reddish-brown on the sides, and grayish white on the underparts. The back is marked with five dark brown to black stripes separated by four white or cream-colored stripes, all of which run from the nape of the neck to the base of the tail. Two light and two dark stripes mark the face, running from the tip of the nose to the ears. The bushy tail is orange-brown in color, and measures long. In some areas, where range overlap with the yellow-pine chipmunk occurs, it may be difficult or impossible to distinguish the two species in the field; laboratory examination of skeletal structures may be required. As in other chipmunks, there are four toes on each of the forefeet and five on the hindfeet. Females have eight teats. The encephalization, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamias Striatus
The eastern chipmunk (''Tamias striatus'') is a chipmunk species found in eastern North America. It is the only living member of the chipmunk genus ''Tamias''. Etymology The name "chipmunk" comes from the Ojibwe word ''ajidamoo'' (or possibly ''ajidamoonh'', the same word in the Ottawa dialect of Ojibwe), which translates literally as "one who descends trees headlong." First described by Mark Catesby in his 1743 ''The Natural History of Carolina, Florida, and the Bahama Islands'', the chipmunk was eventually classified as ''Sciurus striatus'' by Linnaeus, meaning "striped squirrel" in Latin. The scientific name was changed to ''Tamias striatus'', meaning "striped steward," by Johann Illiger in 1811. Description A small species, it reaches about in length including the tail, and a weight of . It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back, ending in a dark tail. It has lighter fur on the lower part o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Chipmunk
The eastern chipmunk (''Tamias striatus'') is a chipmunk species found in eastern North America. It is the only living member of the chipmunk genus ''Tamias''. Etymology The name "chipmunk" comes from the Ojibwe word ''ajidamoo'' (or possibly ''ajidamoonh'', the same word in the Ottawa dialect of Ojibwe), which translates literally as "one who descends trees headlong." First described by Mark Catesby in his 1743 ''The Natural History of Carolina, Florida, and the Bahama Islands'', the chipmunk was eventually classified as ''Sciurus striatus'' by Linnaeus, meaning "striped squirrel" in Latin. The scientific name was changed to ''Tamias striatus'', meaning "striped steward," by Johann Illiger in 1811. Description A small species, it reaches about in length including the tail, and a weight of . It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back, ending in a dark tail. It has lighter fur on the lower part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Chipmunk
The eastern chipmunk (''Tamias striatus'') is a chipmunk species found in eastern North America. It is the only living member of the chipmunk genus ''Tamias''. Etymology The name "chipmunk" comes from the Ojibwe word ''ajidamoo'' (or possibly ''ajidamoonh'', the same word in the Ottawa dialect of Ojibwe), which translates literally as "one who descends trees headlong." First described by Mark Catesby in his 1743 ''The Natural History of Carolina, Florida, and the Bahama Islands'', the chipmunk was eventually classified as ''Sciurus striatus'' by Linnaeus, meaning "striped squirrel" in Latin. The scientific name was changed to ''Tamias striatus'', meaning "striped steward," by Johann Illiger in 1811. Description A small species, it reaches about in length including the tail, and a weight of . It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back, ending in a dark tail. It has lighter fur on the lower part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodents
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/richochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose incisors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotamias
''Neotamias'' is a genus of chipmunks within the tribe Marmotini of the squirrel family. It contains 23 species, which mostly occur in western North America. Along with ''Eutamias'', this genus is often considered a subgenus of ''Tamias''. Species *Alpine chipmunk, ''Neotamias alpinus'' *Yellow-pine chipmunk ''Neotamias amoenus'' *Buller's chipmunk, ''Neotamias bulleri'' *Gray-footed chipmunk, ''Neotamias canipes'' * Gray-collared chipmunk, ''Neotamias cinereicollis'' *Cliff chipmunk, ''Neotamias dorsalis'' * Durango chipmunk, ''Neotamias durangae'' *Merriam's chipmunk, ''Neotamias merriami'' *Least chipmunk, ''Neotamias minimus'' *California chipmunk, ''Neotamias obscurus'' *Yellow-cheeked chipmunk, ''Neotamias ochrogenys'' *Palmer's chipmunk, ''Neotamias palmeri'' * Panamint chipmunk, ''Neotamias panamintinus'' *Long-eared chipmunk, ''Neotamias quadrimaculatus'' *Colorado chipmunk, ''Neotamias quadrivittatus'' *Red-tailed chipmunk, ''Neotamias ruficaudus'' * Hopi chipmunk, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutamias
''Eutamias'' is a genus of chipmunks within the tribe Marmotini of the squirrel family. It includes a single living species, the Siberian chipmunk (''Eutamias sibiricus''). The genus is often treated as a subgenus of ''Tamias'', which is now restricted to the eastern chipmunk of North America. ''Neotamias'', which now includes the western North American chipmunks, has also been included in ''Eutamias''. In addition to the Siberian chipmunk, several fossil species have been assigned to this genus: *'' Eutamias ertemtensis'' Qiu, 1991 – late Miocene to Pliocene of China *'' Eutamias lishanensis'' Qiu et al., 2008 – late Miocene of China *'' Eutamias orlovi'' Sulimski, 1964 – Pliocene of Poland and Bulgaria *'' Eutamias sihongensis'' Qiu and Long, 1986 – early Miocene of China;Qiu et al., 2008, p. 115 subsequently made the type species of a separate genus '' Heterotamias''. *'' Eutamias wimani'' (Young, 1927) – Pleistocene of ChinaSulimksi, 1964, p. 168; Qiu et a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoarding (animal Behavior)
Hoarding or caching in animal behavior is the storage of food in locations hidden from the sight of both conspecifics (animals of the same or closely related species) and members of other species. Most commonly, the function of hoarding or caching is to store food in times of surplus for times when food is less plentiful. However, there is evidence that some amount of caching or hoarding is done in order to ripen the food, called ripening caching. The term hoarding is most typically used for rodents, whereas caching is more commonly used in reference to birds, but the behaviors in both animal groups are quite similar. Hoarding is done either on a long-term basis – cached on a seasonal cycle, with food to be consumed months down the line – or on a short-term basis, in which case the food will be consumed over a period of one or several days. Some common animals that cache their food are rodents such as hamsters and squirrels, and many different bird species, such as rooks and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamias
''Tamias'' is a genus of chipmunks in the tribe Marmotini of the squirrel family. The genus includes a single living species, the eastern chipmunk (''Tamias striatus''). The genus name ''Tamias'' ( el, ταμίας) means "treasurer", "steward", or "housekeeper", which is a reference to the animals' role in plant dispersal through their habit of collecting and storing food for winter use. The genus ''Tamias'' was formerly divided into three subgenera that, in sum, included all chipmunk species: ''Tamias'', the eastern chipmunk and other fossil species; ''Eutamias'', of which the Siberian chipmunk (''E. sibiricus'') is the only living member; and ''Neotamias'', which includes the 23 remaining, mostly western, species. These classifications are subjective, and most taxonomies over the twentieth century have placed the chipmunks in a single genus. However, studies of mitochondrial DNA show that the divergence between each of the three chipmunk groups is comparable to the genetic di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciuridae
Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia. The earliest known fossilized squirrels date from the Eocene epoch, and among other living rodent families, the squirrels are most closely related to the mountain beaver and to the dormice. Etymology The word ''squirrel'', first attested in 1327, comes from the Anglo-Norman which is from the Old French , the reflex of a Latin word , which was taken from the Ancient Greek word (; from ) 'shadow-tailed', referring to the long bushy tail which many of its members have. The native Old English word for the squirrel, , survived only into Middle English (as ) before being replaced. The Old English word is of Common Germanic origin, cognat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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