ENVS 1000U Lecture Notes - Lecture 10: Ecological Footprint, Sustainable Development Goals, Demographic Transition
18 Dec 2016
School
Department
Course
Professor
Document Summary
A biotic factor is any living component that affects the population of another organism, or the environment. This includes animals that consume the organism, and the living food that the organism consumes. Biotic factors also include human influence, pathogens and disease outbreaks: abiotic factors abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Common use of term separates humans from rest of nature. Impact 1: human population growth has affected resource availability. Human population has increase to >7 billion. Medical-technological revolutions led to longer healthier lives. Human population growth changes our interaction with each other and the environment. Consumption of resources has risen faster than population growth: life has become better, rising consumption amplifies demands made on environment. Renewable resources (e. g. sunlight) cannot be depleted. Resources (e. g. soil. , timber and clean water) are renewable - only if we do not overuse them.
