BIOLOGY 1M03 Lecture Notes - Lecture 27: Population Ecology, Ecological Study, Herbaceous Plant
6 May 2019
School
Department
Course
Professor
Document Summary
How can organisms interact with their environment: evolutionary adaptation, long term, genetically based changes due to natural selection favouring individuals carrying beneficial mutations, e. g. Adjustment of fish to rising temperature in a body of water, tolerance to high temperature increase over time) Behavioural response: short term, behaviour in response to the environment in broad terms, e. g. Major areas of ecological study: organismal ecology, how do individuals interact with each other and their environment, e. g. Salmon migrate from saltwater to freshwater environments to breed: population ecology, how and why population size change over time, e. g. Each female salmon produces thousands of eggs, only a few survive to adulthood, only about 2 will return to the stream of their birth breed: community ecology, how do species interact, and what are the consequences, e. g. Salmon are prey as well as predators: ecosystem ecology, how do energy and nutrients cycle through the environment, e. g.
