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Ecosystem
- 9. Modified from: General Ecology , by David T. Krome Trophic level : All the organisms that are the same number of food-chain steps from the primary source of energy
- 17. Example of a Food Chain
- 19. Food web of a hot spring © 2003 John Wiley and Sons Publishers
- 20. Fig 6.5 Food web of the harp seal. © 2003 John Wiley and Sons Publishers
- 21. Ecology is The study of the distribution and abundance of organisms, AND the flows of energy and materials between abiotic and biotic components of ecosystems.
Hinweis der Redaktion
- Source: www.csun.edu/science/scale/4th_grade/ppt/energy_ecosystem.ppt
- Ecosystem Services: Benefits Supplied to Human Societies by Natural Ecosystems. Issues in Ecology . No. 2, Spring 1997.
- Source: 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 ecological pyramid (alt. pyramid of numbers, Eltonian pyramid) The concept that in most food chains , the number of individuals decreases at each stage, with huge numbers of tiny individuals at the base and a few large individuals at the top, as displayed by millions of plankton , a moderate number of large fish, and a few eagles.
- http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt
- http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt
- Fig 6.2 Food web of a hot spring.
- Fig 6.5 Food web of the harp seal.