利本遗址的古老人口统计,俄俄州太华县,俄俄州
概括
利本遗址揭示了一个强大的史前人口,预期寿命为20年. 男性的死亡率高于女性,可能是由于侵略,观察到婴儿死亡率低.
科学领域:
- 古病理学 古病理学
- 生物考古学的生物考古学
- 北美史前史 北美史前史
背景情况:
- 利本遗址是俄俄州大黑沼泽地区一个重要的后期森林骨库和占用地点.
- 它包含了1327个个体的保存良好的骨样本.
研究的目的:
- 分析利本遗址人口的生存率和人口统计模式.
- 为了使这个遗址成为北美最全面研究的史前墓地.
主要方法:
- 利用详尽的老龄化方法来进行精确的人口分析.
- 检查了骨遗骸的保存,完整性和个人识别.
主要成果:
- 生存率数据显示,该地区人口强壮且成功,出生时预期寿命为20年.
- 成年男性的死亡率高于女性的死亡率,可能与侵略有关.
- 婴儿死亡率通常很低.
结论:
- 利本遗址提供了北美史前人口健康和人口统计的无与伦比的数据.
- 提出了一个假设,即原住民与欧洲人接触后的婴儿死亡率增加和成人死亡率下降.
相关概念视频
Changes in the Appendicular Skeleton with Age
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Lethal Alleles
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...


