影响史前日本采集者种群之间的头骨变异的因素
L T Buck1, L P Menéndez2,3, I De Groote4
1Research Centre for Evolutionary Anthropology and Palaeoecology, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF UK.
概括
饮食影响了Jomon的头骨形状,特别是神经,这表明了生物力学适应. 在这个史前日本人口中,人口历史并没有显著地塑造头骨形态.
科学领域:
- 生物人类学是生物学人类学.
- 古人类学古人类学.
- 人类进化人类的进化.
背景情况:
- 头骨形状受到气候,饮食和人口历史的影响.
- 之前的研究很少在一个人群中比较这些因素.
- 日本的Jomon捕食者提供了一个独特的模型,因为他们的环境和生计策略多样化.
研究的目的:
- 调查饮食和人口史对Jomon群体内人类头骨变异的影响.
- 为了比较饮食和人口史对面形状在人口内部规模的相对贡献.
主要方法:
- 几何形态测量应用到一个大样本的Jomon头骨.
- 根据考古证据,Jomon个体被分类为饮食组.
- 分析与饮食群体和人口历史有关的头骨形状变化.
主要成果:
- 有证据表明,饮食与神经形状有关的影响,特别是部区域.
- 在Jomon个体中没有发现人口史的显著模式.
- 饮食对头骨形态的影响似乎微妙,并由其他因素如性别和时间表介导.
结论:
- 饮食在塑造人类头骨形态方面发挥着作用,可能是通过对不同食物资源的生物力学适应.
- 在这个Jomon样本中,人口史并不是变异的主要驱动因素.
- 了解头骨多样性需要考虑饮食,环境和其他生物和社会因素之间的复杂相互作用.
相关概念视频
Optimal Foraging
12.1K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
12.1K
Biological Influences on Intelligence
111
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter...
111
Evolutionary Psychology
272
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
272
Nature and Nurture
20.5K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
20.5K
Speciation Rates
21.2K
Overview
21.2K
Factors Affecting Perception
1.6K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
1.6K


