NV APES- Living World March 20, 2019 admin Law of Tolerance The amount and distribution of an organism can be kept under control by certain natural factors Ecological Niche The role an organism has and the space taken by it in its habitat Keystone Species Has a major impact on the environment relative to its small niche Bottleneck Effect Event which greatly decreses population and the species diversity is lowered Gause’s Principle 2 species fighting for the same resources can not survive if ecological factors stay the same Related posts: NV APES -Living World Integrative Management of Invasive Insect Pests: Quiz 2 Conservation Biology NRS 223 Test 2 NR306 – Ecology