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Vai var kāds pateikt kas ir ekoloģiskās piramīdas?
Varētu kādu piemēru kur ekoloģiskās piramīdas izpaužas...
24, 2006, 19:40Dārta
dragon_girl at tvnet.lv
:-:

    Ekoloģiskā piramīda ir grafisks barošanās ķežu līmeņu attēlojums. Varbūt skaita, biomasas vai enerģijas piramīdas.

    Piemērs biomasas piramīdai:


    /\
    / \
    /Cil-\
    / vēku \
    / biomasa\
    ------------
    / Vistu \
    / biomasa \
    / \
    --------------------
    / \
    / Kāpuru biomasa \
    / \
    ----------------------------
    / \
    / Augu biomasa \
    / \
    ------------------------------------

    Visām šim piramīdām pamatdoma ir tāda, ka tiem, kurus apēd, ir jābūt vairāk par tiem, kas tos apēd, piemēram, viena stirna apēd ļoti daudz zaļumu, bet, savukārt, viens vilks apēd vairākas stirnas.

    24, 2006, 22:24Zirneklītis
[Your answers and comments can be added here]

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