Notes on the pattern of head size in the Philippine Spotted Flying Lizard, Draco spilopterus (Weigmann, 1834), within Luzon Biogeographic Region, Philippines

IF 0.8 4区 生物学 Q3 ZOOLOGY Herpetozoa Pub Date : 2023-10-20 DOI:10.3897/herpetozoa.36.e90412
Michael A. Tabug, Levy V. Necesito, Arvin C. Diesmos
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Abstract

Sexual head dimorphism is a condition where head morphology of male and female of the same species differ, which provides an additional way to recognise sex for species identification. Fifty four adult Philippine Spotted Flying Lizards, Draco spilopterus , were examined from four populations in the Luzon Island, Philippines to assess whether head morphometry can drive sexual dimorphism. We identified the sex and measured five morphometric measurements of the head (jaw length, jaw width, head height, head length, head width) and snout-vent length. A univariate analysis of the five morphometric measurements showed clear sexual dimorphism. Considering all individuals, female heads are significantly larger than those of males (all p-values < 0.05). We also revealed major differences in head size amongst the four populations due to their geographical location and habitat differences.
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菲律宾吕宋岛生物地理区内菲律宾斑飞蜥蜴(Draco spilopterus, Weigmann, 1834)头部大小模式的注释
性头二态性是指同一物种中雄性和雌性的头部形态不同,这为物种鉴定提供了另一种识别性别的方法。对菲律宾吕宋岛4个种群的54只成年菲律宾斑点飞蜥(Draco spilopterus)进行了研究,以评估头部形态测定是否能驱动两性二态性。我们确定了性别,并测量了头部的五种形态测量(颚长、颚宽、头高、头长、头宽)和口长。五种形态测量的单变量分析显示出明显的两性二态性。考虑到所有个体,女性头部明显大于男性头部(所有p值<0.05)。我们还发现,由于地理位置和栖息地的差异,四个种群在头大小上存在重大差异。
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来源期刊
Herpetozoa
Herpetozoa ZOOLOGY-
CiteScore
1.90
自引率
11.10%
发文量
27
审稿时长
>12 weeks
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