1 / 17

Ecosystems: The Basics

Learn about the elementary structural unit of the biosphere - the ecosystem, its components, dependencies, and relationships. Explore natural and artificial ecosystems, producers, consumers, and decomposers. Discover the intricate balance of energy flow and substance circulation critical for ecosystem sustainability.

williammaurice
Télécharger la présentation

Ecosystems: The Basics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ECOSYSTEMS Výukový materiál EK 01 - 05 Tvůrce: Mgr. Šárka Vopěnková Tvůrce anglické verze: ThMgr. Ing. Jiří Foller Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR 2014

  2. elementary structural and functional unit of the biosphere including: • living component - biocoenosis • non living component – abiotic environment • there are natural relationships for the balance of the whole ecosystem ECOSYSTEMS

  3. terrestrial (land) ecosystems = geobiocoenosis: • borders are determined according to the most striking component - vegetation • all ecosystems: • characterized as open systems: • energy flow • substance circulation • development ECOSYSTEMS

  4. ecosystems are dependant on inputs: • solar energy • CO2 • water • mineral substances • ecosystems are dependant on outputs: • breathing • radiation • soil elution • flowing-off the surface water • wind erosion ECOSYSTEMS

  5. natural ecosystems: • oak-hornbeam forest • peatbog • lake • river branch • forest pool • even a tree stump ECOSYSTEMS

  6. artificial ecosystems: • created by the human activity • they are kept just thanks to so called additional energy > fertilizers, sprays, cultivations, weeding • field • orchard • aquarium ECOSYSTEMS

  7. in the ecosystem exist reciprocal relationships • most important are nutritional relationships = trophic • classification of organisms according to trophic relations: • producers • consumers • destroyers ECOSYSTEMS

  8. producers: • autotrophic organisms > photosynthesis • green plants • bacteria • plants in their biomass bind 1% of all substances • produced organic mass = primary production of the ecosystem ECOSYSTEMS

  9. ECOSYSTEMS

  10. consumers: • heterotrophic organisms > they consume organic substances created by producers • herbivora • carnivora • detritophags • parasites of plants, animals and humans ECOSYSTEMS

  11. ECOSYSTEMS

  12. destroyers = decomposers • organisms performing gradual decomposition of the necrotic organic mass into inorganic compounds - CO2 , H2O and mineral substances • substances are used again by producers • transmission of substances and energy proceeds in food chains ECOSYSTEMS

  13. ECOSYSTEMS

  14. decomposition: • key process in the nutrient cycle • among the most important groups of decomposers belong fungi and bacteria ECOSYSTEMS

  15. WORKSHEET

  16. WORKSHEET

  17. KINCL, Lubomír, Miloslav KINCL a Jana JAKRLOVÁ. Biologie rostlin: pro 1. ročník gymnázií. 4., přeprac. vyd. Praha: Fortuna, 2006, 302 s. ISBN 80-716-8947-5. SOURCES

More Related