Unit One.Ecology A WORLD IN A WEB. SCIENCE 8
What is Ecology? • Ecology(defined) The study of the interelationships between living things and their environment(climate,soil,moisture, etc) Some Examples:
What is Ecology? • In 1866 German biologist and evolutionist Ernst Haeckel used the word to denote the study of organisms and their interaction within the world around them
Ecology • The term Ecology comes from two Greek words • 1. Oikos: “means house” • 2. Logos: “which means study” • Ecology means the study of houses or environments
Terms • Individual(defined) An individual or single organism. Example: A mouse, a fox. An oak tree.
Terms • Population(defined) A group of like species. Example a family of mice, a stand of oak trees, a group of fox
Terms • Community(defined) All of the populations of plants and animals in a certain area
Terms • Niche(defined) The specific place or role an organism has in the community. Example: Worms break down organic material to improve the soil.
Terms • Ecosystem(defined) All living communities on an area, together with non living parts of their environment. Example forests, lakes, ponds, backyards ,etc.
Terms • Biome(defined) A major land ecosystem that has a distinct kind of plant life, such as grassland or desert.
Terms • Biosphere(defined) The thin skin of soil, water and air where all life exists
Not but not least • Homework: reading: A world in a web • Observation of a biological community