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E COSYSTEM Výukový materiál EK 01 - 20 Tvůrce: Ing. Marie Jiráková Tvůrce anglické verze: Mgr. Milan Smejkal 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
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E COSYSTEM Definition ECOSYSTEM is created by a community of organisms together with the abiotic environment
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DIVISION OF ECOSYSTEMS water – a pond, a river, the sea etc.. overland – a forest, a meadow, fields etc..
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A NOTHER DIVISION OF ECOSYSTEMS natural – natural environmental conditions and natural relationships among organisms are critical to live in them artificial –influenced by human activity, a supplementary energy is supplied by a human
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S TRUCTURE AND FUNCTION OF ECOSYSTEMS There are different abiotic conditions in various ecosystems. Biotic conditions consist of organisms and the relationships between them.
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F UNCTION OF ORGANISMS IN THE ECOSYSTEMS Different functions of organisms in an ecosystem – there are: Producers Consumers Decomposers
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L IFE IN ECOSYSTEM There is a transformation of matter and energy in any ecosystem. Ecosystems are restored. Ecosystems evolve.
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ECOSYSTEM Every ecosystem achieve a biological balance under certain conditions. Changing even one component (abiotic or biotic) - disruption of the balance. The balance of the ecosystem is often disturbed by human activities.
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E COSYSTEM IS The basic functional building unit of nature.
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T HE MAIN ECOSYSTEMS OF THE COUNTRY tundra taiga steppe deciduous forests bushy forests deserts and semi-deserts tropical deciduous forests and savannahs tropical rain forests
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CHANGES IN ECOSYSTEMS Large areas of the original natural ecosystems have been altered by human activities.
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W ORKSHEET - REVISION What is an ecosystem? Give an example of human activities that negatively affects some ecosystems. The biotic conditions of ecosystems are made up of …? What is a biological balance? Give examples of natural and artificial ecosystems. What is a supplementary energy in the artificial ecosystem?
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SOURCES BRANIŠ, Martin. Základy ekologie a ochrany životního prostředí. 2. vyd. Praha: Informatorium, 1999. ISBN 80-86073-52-1. PAPÁČEK, Miroslav a kol. Zoologie. Praha: pedagogické nakladatelství, 2000, ISBN 80-7183-203- 0. KVASNIČKOVÁ, Danuše. Základy ekologie. Praha: Scientia,spol.s r.o., 1994, ISBN 80-85827-84-0 KVASNIČKOVÁ, Danuše, Pavel PECINA, Jiří FRONĚK, Jiří CAIS a Jan JENÍK. Poznáváme život: přírodopis s výrazným ekologickým zaměřením pro 6. ročník ZŠ (7. ročník občanské školy) a nižší ročníky gymnázií. 1. vyd. Praha: Fortuna, 1994, 94 s. ISBN 80-716-8160-1.
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