Abstract
Fieldworks of human ecology strategically consist of unbiased observations and collection and analysis of quantitative data for the scientific evaluation of the findings. Adaptation systems of Homo sapiens have been diversified depending on local environmental conditions, thus researchers are required to identify the population-specific system of adaptation. Quantitative evaluation of principal components of adaptation (food production, food consumption and reproduction) enables the integration between field-based sciences and medical sciences. Fieldworks of human ecology will be beneficial for studying human adaptation to aging societies and for widening our understanding for the adaptability of Homo sapiens.
