Morphometrics highlights subspecies differentiation of continental (Rangifer t. tarandus) and insular (Rangifer t. platyrhynchus) Norwegian reindeer

IF 0.8 4区生物学 Q3 ZOOLOGY

Mammalia Pub Date : 2023-11-24 DOI:10.1515/mammalia-2023-0004

Fangzhou Yu, Olivier Bignon-Lau, Åshild Ønvik Pedersen, Olav Strand, Vebjørn Veiberg, Øystein Wiig, Allowen Evin

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引用次数: 0

Abstract

Reindeer (Rangifer tarandus) is an emblematic species with several recognized subspecies. Two reindeer subspecies are present in Norway: the wild and semi-domestic European tundra reindeer (R. tarandus tarandus) in continental Norway, and Svalbard reindeer (R. tarandus platyrhynchus) endemic to this archipelago. The main aim of this paper is to give a descriptive and quantified analysis of the modern wild reindeer morphological diversity. The morphometric variation was quantified, based on 262 adult specimens of both sexes, by both linear measurements, analysed through log shape ratio computed from post-cranial bones and teeth measurements, and landmarks and sliding semi-landmarks based geometric morphometrics (GMM) to quantify molars size and shape. All anatomical parts (teeth, metatarsals, metacarpals) highlighted differences between the continental and insular subspecies. Our main results pointed out morphometrics characteristics of nowadays reindeer subspecies, like differences in proportions between the size of metapodials or lower cheek teeth with the body size, that could be of great interest for archaeozoological research.

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形态计量学强调了挪威大陆驯鹿(Rangifer t. tarandus)和岛屿驯鹿(Rangifer t. platyrhynchus)的亚种分化

驯鹿(Rangifer tarandus)是一个具有几个公认亚种的象征性物种。挪威有两个驯鹿亚种:挪威大陆的野生和半家养欧洲苔原驯鹿(R. tarandus tarandus)和斯瓦尔巴群岛特有的驯鹿(R. tarandus platyrhynchus)。本文的主要目的是对现代野生驯鹿的形态多样性进行描述和定量分析。基于262个两性成年标本，通过线性测量，通过颅后骨骼和牙齿测量计算的对数形状比，以及基于地标和滑动半地标的几何形态测量(GMM)来量化磨牙的大小和形状，对形态学变化进行量化。所有解剖部位(牙齿、跖骨、掌骨)都突出了大陆亚种和岛亚种之间的差异。我们的主要研究结果指出了当今驯鹿亚种的形态计量学特征，如后足或下颊齿的大小与身体大小之间的比例差异，这可能对考古研究有很大的兴趣。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mammalia 生物-动物学

CiteScore

2.20

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Mammalia is an international, multidisciplinary, bimonthly journal devoted to the inventory, analysis and interpretation of mammalian diversity. It publishes original results on all aspects of the systematics and biology of mammals with a strong focus on ecology, including biodiversity analyses, distribution habitats, diet, predator-prey relationships, competition, community analyses and conservation of mammals. The journal also accepts submissions on sub-fossil or recently extinct mammals.