Schroer_and_Wood_2015_Evolution_character_displacement_macaques_v1

PREFERRED CITATION: Schroer K and Wood B. 2015. The role of character displacement in the molarization of hominin mandibular premolars. Evolution. DOI: 10.1111/evo.12672. Title: Schroer_and_Wood_2015_Evolution_character_displacement_macaques_v1 Version number: 1 Date (ISO) original data publication: 5/5/15 Dates (ISO) data collection: 01/01/12-01/01/14 Date (ISO) online publication: 5/5/15 Companion manuscript title: "The role of character displacement in the molarization of hominin mandibular premolars" Companion manuscript journal: Evolution Primary collector of data: Kes Schroer Co-authors: Bernard Wood Research assistants: Kristen Ramirez, Christine Foltz Short description: Measurements of the lower fourth premolar (P4) from macaques for character displacement analysis. Rows: 60 (header = TRUE) Columns: 17 Empty cell label: NA Variables: I, T, L, Intrx, Taxon, logmd, logbl, logarea, Randomly.selected?, ACC, Museum, Sex, Group, Location, P4MD, P4BL, P4AREA ==================== I, T, L, and Intrx: variables of the input matrix. “I” is Intercept and is always 1. “T” is “Taxon” and is encoded “1” for one taxon and “-1” for the other. “L” is location and is “1” for the sympatrix taxa and “-1” for the allopatric taxa. “Intrx” is the interaction of T and L and simply multiples these two values. Taxon: genus and species logmd, logbl, and logarea: the natural logs of the measurements P4MD, P4BL, and P4AREA. Randomly.selected: whether or not a specimen was randomly selected by the custom R script for character displacement analysis (see manuscript for more details). “Yes” indicates that the specimen was selected and “NA” indicates that the specimen was not. ACC: specimen number assigned by the host museum Museum: AMNH = American Museum of Natural History, NMNH = National Museum of Natural History, Smithsonian Institution, BMNH = Museum of Natural History, London Sex: F = female, M = male Group: “Macaques” for all specimens. This category has other values in other datasheets for the character displacement analysis, for easy combinations during comparative analyses. Location: NA for all specimens; column is only relevant to African ape sample in this analysis P4MD: mesiodistal diameter of the lower fourth premolar, in millimeters P4BL: buccolingual diameter of the lower fourth premolar, in millimeters P4AREA: area of the occlusal surface of the lower fourth premolar, calculated through a resampled outline in the digitization program tpsDIG (see manuscript for more details)

推荐引用文献：Schroer K 与 Wood B，2015年。《灵长类下颌前臼齿臼齿化过程中的性状替换（character displacement）作用》，《进化（Evolution）》期刊。DOI: 10.1111/evo.12672。数据集标题：Schroer_and_Wood_2015_Evolution_character_displacement_macaques_v1，版本号：1。原始数据发布日期（ISO格式）：2015-05-05；数据采集日期：2012-01-01 至 2014-01-01；在线发布日期：2015-05-05。配套论文标题："The role of character displacement in the molarization of hominin mandibular premolars"（《灵长类下颌前臼齿臼齿化过程中的性状替换作用》）；配套论文期刊：《进化（Evolution）》。数据主要采集者：Kes Schroer；共同作者：Bernard Wood；研究助理：Kristen Ramirez、Christine Foltz。数据集简介：用于性状替换分析的猕猴（macaques）下颌第四前臼齿（P4）测量数据。行数：60（表头存在，即包含列名）；列数：17；空值标记：NA。变量列表：I、T、L、Intrx、Taxon、logmd、logbl、logarea、Randomly.selected?、ACC、Museum、Sex、Group、Location、P4MD、P4BL、P4AREA。

变量说明：
I、T、L 与 Intrx：输入矩阵的变量。其中“I”为截距项（Intercept），恒为1；“T”代表类群（Taxon），编码为1表示某一类群，-1表示另一类群；“L”代表分布地，1代表同域分布类群，-1代表异域分布类群；“Intrx”为T与L的交互项，即二者数值的乘积。
Taxon：类群属种信息。
logmd、logbl 与 logarea：分别为P4MD、P4BL、P4AREA测量值的自然对数。
Randomly.selected?：标本是否通过定制R脚本（R script）随机选取以用于性状替换分析（详见配套论文），“Yes”表示已选取，“NA”表示未选取。
ACC：馆藏博物馆指定的标本编号。
Museum：馆藏博物馆缩写：AMNH=美国自然历史博物馆（American Museum of Natural History），NMNH=史密森学会国家自然历史博物馆（National Museum of Natural History, Smithsonian Institution），BMNH=伦敦自然历史博物馆（Natural History Museum, London）。
Sex：性别：F=雌性（female），M=雄性（male）。
Group：所有标本均标注为“猕猴（Macaques）”，该分类项在其他性状替换分析数据表中可设置其他取值，以方便比较分析时的快速组合。
Location：所有标本该字段均为NA；本分析中该列仅适用于非洲猿类样本。
P4MD：下颌第四前臼齿的近中远中径（mesiodistal diameter），单位为毫米。
P4BL：下颌第四前臼齿的颊舌径（buccolingual diameter），单位为毫米。
P4AREA：下颌第四前臼齿咬合面面积，通过数字化软件tpsDIG中的重采样轮廓计算得到（详见配套论文）。