منابع مشابه
Lycalopex gymnocercus (Carnivora: Canidae)
Lycalopex gymnocercus (Fischer, 1814) is a canid commonly called the Pampas fox. A sexually dimorphic fox-like carnivore of medium size with reddish coloration on sides and white on the ventral surface, it is 1 of 6 species in the genus Lycalopex. It occurs in eastern Bolivia, western and central Paraguay, Uruguay, north and central Argentina, and southeastern Brazil. It prefers open habitats b...
متن کاملLycalopex vetulus (Carnivora: Canidae)
Lycalopex vetulus (Lund, 1842), commonly called the hoary fox, is Brazil’s smallest canid. It has a slender body and limbs and a small skull composed of relative fragile bones. Its size and skull characteristics combined with its peculiar dentition make it more suitable for an insectivorous diet rather than one of large vertebrates. L. vetulus is endemic to Brazil and occurs primarily in the so...
متن کاملMolecular systematics of the Canidae.
Despite numerous systematic studies, the relationships among many species within the dog family, Canidae, remain unresolved. Two problems of broad evolutionary significance are the origins of the taxonomically rich canidae fauna of South America and the development in three species of the trenchant heel, a unique meat-cutting blade on the lower first molar. The first problem is of interest beca...
متن کاملScaling and Accommodation of Jaw Adductor Muscles in Canidae
The masticatory apparatus amongst closely related carnivoran species raises intriguing questions about the interplay between allometry, function, and phylogeny in defining interspecific variations of cranial morphology. Here we describe the gross structure of the jaw adductor muscles of several species of canid, and then examine how the muscles are scaled across the range of body sizes, phyloge...
متن کاملElevated basal slippage mutation rates among the Canidae.
The remarkable responsiveness of dog morphology to selection is a testament to the mutability of mammals. The genetic sources of this morphological variation are largely unknown, but some portion is due to tandem repeat length variation in genes involved in development. Previous analysis of tandem repeats in coding regions of developmental genes revealed fewer interruptions in repeat sequences ...
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ژورنال
عنوان ژورنال: Science
سال: 1880
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.os-1.26.303-a