Ekologia i Ochrona Środowiska

1. 04-10-2007 21:40

a grzyb chyba czerpie z tego kozysci to wtesy to nie jest amensalizm nie?

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2. 02-06-2009 18:55

to jest allelopatia. zachodzi wtedy gdy populacja 1 wytwarza substancję szkodliwą dla konkurującej populacji 2. odnosi się to głownie do substancji chemicznych

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3. 09-09-2009 20:19

Allelopatia jest to związek pomiędzy kilkoma gatunkami roślin, polegający na specyficznym oddziaływaniu organizmów. Substancje chemiczne wydzielane przez jeden gatunek mogą przyspieszać lub działać hamująco na wzrost drugiego organizmu. Podany wyrzej przykład jest bardzo dobry na amensalizm, przecież grzyb nie czerpie korzyści z tego,że antybiotyk jaki produkuje hamuje rozwój bakterii. 
Amensalizm natomiast jest to takie oddziaływanie pomiędzy gatunkami, kiedy jedna z populacji ponosi szkody podczas gdy dla drugiej obecność gatunku ponoszącego szkody jest obojętny i nie przynosi ani strat ani korzyści.Przykład: • Bóbr, który budując żeremie niszczy niektóre gatunki roślin albo kormorany, których odchody niszczą roślinność wokół ich gniazd. 
Mam nadzieję, że się komuś przyda

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4. 21-10-2009 16:58

hej

żal

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5. 25-11-2009 15:24

www

http://www

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6. 27-11-2009 11:17

www

dzieki :D mnie sie bardzo to przydalo :*

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7. 23-03-2012 08:52

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8. 23-03-2012 08:53

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9. 01-04-2012 10:38

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10. 11-04-2012 09:31

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