EVSC 100 Lecture Notes - Lecture 7: Biotic Component, Biome, Eutrophication

• School: Simon Fraser University
• Department: Environmental Science
• Course: EVSC 100
• Professor: Marnie Branfireun

Document Summary

Most life on earth is restricted to the crust. Population can refer to the whole species or the population from a particular geographic area: grizzlies from the east or from the west (they can be different) The biosphere is basically the sum of all ________ . Depends on the area and the scale : one continent = ecosystem or biome. Marine ecosystems is only salty ecosystems (oceans); freshwater (lakes etc. ) Estuaries have the most nutrient from accumulation from river mouths and such: eutrophication may occur even if no humans live on the planet. Terrestrial biomes are on temperature and precipitation gradient.