ANT214H5 Lecture 4: ANT214 Lecture 4
Document Summary
Development of non-subsistence related roles in the community. No seasonal variation in access to food. Injuries and medical problems easier to deal with. Wounded and sick don"t need to be moved. Disease that are from animals to humans. Increased in waste- related diseases, epidemics, contact disease. High rate of degenerative and joint diseases. Ecological community of commensal, symbiotic and pathogenic microorganisms that share our body. Genetic composition of gut microflora unique and stable through time. Varies by individual but microflora has similar roles. Microbiomes play pivotal role in physiological activities. Human microbial environment change during each transition. +5000 plants -> late 20th century 3 species= wheat, rice and corn. Increase in proportion of prevotella species in gut. Increase in bifidobacteria later stages in lifecycle. Based on studies of dental plaque, gut and salivary biome of african agriculturalist, coprolites. Antimicrobial drugs= destruction and manipulation of microbiome. Altering gut and mouth microflora= adverse feedback loops.
