Differentiation at a microgeographical scale within two species of ground beetle, Carabus auronitens and C-nemoralis (Coleoptera, Carabidae):: a geometrical morphometric approach
Differentiation at a microgeographical scale within two species of ground beetle, Carabus auronitens and C-nemoralis (Coleoptera, Carabidae):: a geometrical morphometric approach
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DOI：
10.1046/j.1463-6409.2001.00068.x
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发表时间：
2001-10-01
影响因子：
2.5
通讯作者：
David, B
中科院分区：
文献类型：
--
作者：
Alibert, P;Moureau, B;David, B
新的形态计量学方法，即几何形态计量学，为评价生物之间的形态变异提供了广阔的前景，并在很大程度上开辟了形态计量学领域，用于系统学和进化的研究。然而，到目前为止，很少有研究在微地理范围内探索这些方法的潜力。在目前的工作中，我们应用它们来量化两种森林地甲种群之间的形态(大小和形状)分化：金龟子和金龟子。我们发现，这两个物种的形状在地点之间以及性别之间都有显著的差异。此外，对于金环蛇，我们发现种群之间的形态(形状)和地理距离在两性之间存在显著的正相关。相比之下，性别之间发现了显著的大小差异，但地点之间没有发现。我们的结论是，几何形态计量学方法为研究种群间的形态变异提供了有价值的工具，因此，总的来说，为生物多样性格局的研究提供了有趣的视角。
New morphometric methods, the geometrical morphometrics, offer promising perspectives to appraise morphological variation among organisms and open up, to a large extent, the field of morphometrics for the study of systematics and evolution. Until now, however, few studies have explored the potential of these methods at a microgeographical scale. In the present work, we applied them to quantify morphological (size and shape) differentiation among populations of two forest species of ground beetles: Carabus auronitens and C. nemoralis. We found a significant shape variation among sites, as well as among sexes, for both species. Additionally, for C. auronitens, we found significant positive correlations in both sexes between morphological (shape) and geographical distances between populations. In contrast, significant size differences were found between sexes, but not between sites. We conclude that geometrical morphometric methods provide valuable tools for the study of morphological variation among populations and therefore offer, on the whole, interesting perspectives for the study of biodiversity patterns.