Geographic Variability of the Shape of the Toothrow in the Arctic Fox (Vulpes lagopus L. 1758): The Role of Asymmetry and Allometry

Gasilin, V.V.; Nanova, O.G.

Авторы: Gasilin V.V., Nanova O.G.
Журнал: Biology Bulletin
Том: 50
Номер: 9
Год издания: 2023
Издательство: M A I K Nauka - Interperiodica
Местоположение издательства: Russian Federation
Первая страница: 2439
Последняя страница: 2453
DOI: 10.1134/S106235902309011X
Аннотация: The geographic variability of the shape of the toothrow of the upper cheek was studied in Arcticfoxes using the methods of geometric morphometrics. The geographical variability was studied using 288specimens from 19 localities in North America, Eurasia, and islands of the Pacific and Arctic oceans. A significantmonomorphism of the toothrow was demonstrated for all mainland Arctic foxes, as well as Arcticfoxes from Greenland and St. Lawrence Island. The Arctic foxes of four Pacific island populations (two Commanderand two Pribilof) differ significantly from the mainland Arctic foxes by the shape of the toothrow. Atthe same time, Arctic foxes of Mednyi Island, Bering Island, and the Pribilof Islands also differ from eachother. The Arctic fox from Mednyi Island has the shortest and most widely spaced toothrow, as well as verylarge teeth. On the contrary, the Arctic fox from the Pribilof Islands has the smallest teeth. Allometry doesnot play a significant role in the formation of geographic variability in the toothrow in Arctic foxes. A highlevel of fluctuating asymmetry was detected in Arctic foxes of Mednyi Island and St. George Island as comparedwith its level in other Arctic fox populations. It is most likely that, for the Arctic fox from MednyiIsland, this is caused by known low genetic diversity of the population due to passage of an extreme populationbottleneck in the recent past. It was suggested that the factors of fluctuating asymmetry affecting the Arcticfoxes of Mednyi and St. George islands are identical.
Добавил в систему: Нанова Ольга Геннадьевна

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

Geographic Variability of the Shape of the Toothrow in the Arctic Fox (Vulpes lagopus L. 1758): The Role of Asymmetry and Allometryстатья

Прикрепленные файлы