Male Cayo Santiago rhesus macaques (Macaca mulatta) tend to have greater molar wear than females at comparable ages: exploring two possible reasons why.

Male Cayo Santiago rhesus macaques (Macaca mulatta) tend to have greater molar wear than females at comparable ages: exploring two possible reasons why.
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雄性圣地亚哥岛恒河猴(Macaca mulatta)往往有更大的臼齿磨损比女性在可比的年龄:探索两个可能的原因。

DOI:
10.1002/ajpa.24519
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发表时间:
2022-07
期刊:
AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY
影响因子:
--
通讯作者:
Wang, Qian
Wang, Qian
中科院分区:
其他
文献类型:
--
作者:
Guatelli-Steinberg, Debbie;Guerrieri, Taylor;Kensler, Terry B.;Maldonado, Elizabeth;Francis, George;Kohn, Luci A. P.;Zhao, Martin Q.;Turnquist, Jean E.;Wang, Qian

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(1)研究已知年龄的Cayo圣地亚哥恒河猴(Macaca mulatta)磨牙磨损的性别差异,(2)探讨体重和磨牙萌出时间的性别差异作为影响磨牙磨损性别差异的因素。数据集I包括1985年综述中包括的212只活猴的磨损评分、年龄和体重。数据集II包括对这些猴子的牙齿遗骸中的103个的2D图像进行的磨牙磨损测量。有序逻辑回归用于分析第一个数据集。一般线性模型用于分析第二。男性一般表现出更多的磨损比女性在相同的实足年龄,虽然结果不同的牙齿类型的第二个数据集。男性体重在1985年的全部生活样本显着相关的牙齿磨损,当年龄考虑在内,但是,当男性小于8岁的样本中删除,牙齿磨损和体重之间的关联变得统计学上不显着。第二个数据集的分析表明,第三磨牙的牙齿磨损没有统计学上的显著性别差异,尽管这种牙齿类型的萌出年龄存在约2年的性别差异。这项研究表明,男性的体重可能是牙齿磨损的预测因素,如果是这样,体重也可能影响牙齿磨损的性别差异。在这个样本中,牙齿萌出时间的性别差异似乎不能解释牙齿磨损的性别差异。
(1) To investigate sex differences in molar wear in known‐age Cayo Santiago rhesus macaques (Macaca mulatta) and, (2) To explore sex differences in body weight and molar eruption timing as factors influencing sex differences in molar wear. Data set I comprises wear scores, ages and body weights of 212 living monkeys included in the 1985 roundup. Data set II consists of molar wear measurements taken on 2D images of 103 of these monkeys' dental remains. Ordinal logistic regression was used to analyze the first data set. General linear models were used to analyze the second. Males generally exhibited more wear than females at equivalent chronological ages, though results varied by tooth type for the second data set. Male body weight in the full 1985 living sample was significantly related to dental wear, when age was taken into account; however, when males less than 8 years of age were eliminated from the sample, the association between dental wear and weight became statistically insignificant. Analysis of the second data set suggested no statistically significant sex difference in dental wear for third molars, despite the approximately 2 year sex difference in eruption age for this tooth type. This study suggests that body weight in males might be a predictor of dental wear and that if it is, body weight might also influence sex differences in dental wear. Sex differences in dental eruption timing do not appear to explain sex differences in dental wear in this sample.
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