PPT-Ecosystems

Section 12 What are ecosystems Part of a biome that contains abiotic components oxygen water nutrients light and soil that support biotic components plants animals and microorganisms Can be small a rotting log or large Forest or grasslands. 5.4. Learning Objectives. All students should know:. What is an agricultural ecosystem.. How natural and agricultural ecosystems differ.. What is meant by productivity.. How net productivity is calculated.. Unit A: Sustainability of Ecosystems . Ecology. Study of how organisms interact with each other and with their environment.. Can be divided into several levels: . individual, population, community, ecosystem, biome, biosphere. The Aquatic Biome. 3 Basic Areas:. Freshwater. (rivers, lakes). Brackish. Water (estuaries, wetlands). Marine. (oceans, coral reefs). How do ecologist classify?. Salinity. Depth . Whether the water is . Abiotic Elements That Affect Our Water. Water Chemistry. Healthy aquatic ecosystems depend upon many factors. One important factor is the chemical balance present in the ecosystem.. Aquatic ecosystems are susceptible to many chemical changes. Usually if the chemistry of a “healthy” ecosystem changes, signs of this change will include sensitive organisms quickly declining in number or disappearing. These types of organisms are called . 4.2 pgs. 94 - 100. Biomes. A large geographical region with a specific range of temperatures and precipitation, and the organisms that are adapted to those conditions of temperature and precipitation. - Jacques Ives Cousteau. 2. New Orleans is nested between the mouth of the Mississippi River and the brackish estuary of Lake Pontchartrain.. 3. A series of floodwalls, or levees, protects the city from ocean surges from large storms.. CHAPTER. Too Much of a Good Thing?. Elephant populations in southern Africa declined sharply due to hunting but have made overwhelming comebacks within nature reserves and parks.. Some worry that elephant overpopulation is causing a decline in local biodiversity and damage to farms and infrastructure.. Aquatic ecosystems are primarily determined by the ecosystem’s . salinity. . Salinity refers to the dissolved salt content of the water.. Aquatic ecosystems are divided into freshwater and marine ecosystems.. The . altiplano. is a high plateau in the Andean regions of two South American nations.. The . varzea. , or “flooded forest,” is found mainly along the Amazon River in this nation.. The . cerrado. Ocean Zones & Ecosystems. Freshwater Zones & Ecosystems. Related Ecology. Benthic Division. 6 Areas. . 1. Supralittoral zone. (supra= upper, litus=shore). . Water splashes but does not stay submerged. The Fiji Pearl Development Pla. n. was introduced June 7. th. 2017 at World Oceans day by the Fiji Government as one of 16 Voluntary commitments towards the implementation of Sustainable Goal 14.. Getting started. With this GEO resource you will be learning about the location and biodiversity of . coral reefs. , their value to us and the environment and threats affecting global reefs today. We will also investigate the response to such threats in term of management.. (A) . Abiotic. component. (B) Biotic component. Abiotic. component:. Abiotic. component of pond consists of water, dissolved minerals, oxygen and carbon dioxide. Solar radiations are the main source of energy.. Getting started. You’ll need a notepad on which to make notes as you go along, or you could make notes, paste images, etc. on your device.. You can view these slides:. as a slide-show for any animations and to follow links.