logging in or signing up Ecosystem fahimariyaz Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 82 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: January 22, 2013 This Presentation is Public Favorites: 0 Presentation Description ecosystem and its basic concepts Comments Posting comment... Premium member Presentation Transcript Ecosystems: Basic Concepts: Presented by M.S.Ulfath Fahima Ecosystems : Basic Conceptscontents: contents The concept of ecosystem Kinds of ecosystem Structure of an ecosystem Pond as an example of ecosystem Functions of ecosystem Flow of energyThe concept of ecosystem: Ecosystem: Basic functional unit in ecology Includes living (biotic) and non living (abiotic) organisms Each ecosystem has distinct community with a distinct environment The concept of ecosystemKinds of ecosystem: Kinds of ecosystemStructure of an ecosystem: Structure of an ecosystemBiotic components: Biotic components Autotrophs - Producers Heterotrophs - Consumers Primary consumers Secondary consumers Tertiary consumers Micro consumersBiotic Components Flow chart: Biotic Components Flow chartAutotrophs producers: Autotrophs producersExamples: Examples Green plants Euglena cosmorium Chemosynthetic Bacteria Photosynthetic bacteriaHeterotrophs: HeterotrophsHeterotrophs: Heterotrophs Primary consumers Herbivorous animals dependent on green plantsHeterotrophs: Heterotrophs Secondary consumers Animals that are dependent on Herbivorous for foodHeterotrophs: Heterotrophs Tertiary consumers Carnivores which feed on secondary consumersHeterotrophs: HeterotrophsParasites: Parasites They obtain food directly from other organism of all trophic levels Micro consumersExample: Example Micro consumers ParasitesDetrivores and scavengers: Detrivores and scavengers Detrivores feed on organic fragments Scavengers feed on dead bodies They are essential for quick break down of dead bodies of organisms Micro consumersExample: Example Micro consumers Detrivores and scavengers VultureDecomposers: Decomposers Breakdown the complex compounds of dead or living protoplasm Absorb some of the decomposition products Release inorganic nutrients which are cycled back to the soil and the atmosphere Play important role in maintaining the dynamic nature of ecosystem Micro consumersExample: Example Micro consumers Bacteria and fungiAbiotic components: Abiotic componentsAbiotic components: Abiotic componentsAbiotic components: Abiotic componentsAbiotic components: Abiotic components These are substances that are dispersed from the dead bodies of organisms are derived from their excretions The various organic substances are collectively known as humus (contains carbohydrates, proteins, lipids, amino acids and nucleic acids) It link the biotic components with the abiotic components Organic substancesAbiotic components: Abiotic components Physical factors It includes climatic, edaphic and topographic factorsPond as an example of ecosystem: Pond as an example of ecosystemFlow of Energy: Flow of Energy The greatest amount of energy is found at the base of the pyramid. The least amount of energy is found at top of the pyramid.Reference: Reference www.csun.edu/science/scale/4th_grade/ppt/energy_ecosystem.ppt http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt Environmental studies Editors : Dr. Jayamani. K and Dr. LethiThank you: Thank you You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.