MORPHOLOGICAL VARIATION AND INTEGRATION OF DENTITION IN RED-FOX-LIKE (VULPES) AND SOUTH AMERICAN FOX-LIKE (CERDOCYON, PSEUDOALOPEX) CANIDS

Nanova, O.G.

Автор: Nanova O.G.
Журнал: Paleontologia i Evolucio
Том: 8
Год издания: 2016
Первая страница: 42
Последняя страница: 42
Аннотация: We examined inter-species variation in the shape of upper toothrows and in their morphological integration in the genus Vulpes and fox-like south American canids using a geometric morphometrics approach. south American canids are members of a monophyletic taxon which is sister to wolf-like canids (bardeleben et al., 2005). the basal to the red-fox-like canids Gray fox Urocyon cinereoargenteus was also included in the analysis. in total, 259 specimens of 12 species were employed. We found that toothrow shape overlapped significantly among the three phylogenetically remote analyzed lineages, and that the generalized fox-like shape is precisely repeated several times through Canidae evolution. the most distinct species was the Arctic fox Vulpes lagopus which is specialized to Arctic conditions. this species possesses a retracted and wide snout. inter-species variation in the Vulpes genus (after exclusion of the highly specialized Arctic fox) is generally explained by size-shape allometry. the smallest species (Fennec fox, Vulpes zerda, and rüppell's fox, Vulpes rueppellii) have an enlarged first molar M1 in comparison with the largest species (red fox, Vulpes vulpes). size allometry is not significant for inter-species variation of south American fox-like canids. the covariance matrices for all studied species were nearly equidistant. the similarity of covariance structure was shown among three phylogenetically distant groups of Canidae with similar morphology.
Добавил в систему: Нанова Ольга Геннадьевна

	ИСТИНА	Войти в систему Регистрация
	ФНКЦ РР
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ФНКЦ РР

MORPHOLOGICAL VARIATION AND INTEGRATION OF DENTITION IN RED-FOX-LIKE (VULPES) AND SOUTH AMERICAN FOX-LIKE (CERDOCYON, PSEUDOALOPEX) CANIDSстатья

Прикрепленные файлы