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Lichen

Lichen

a large group of symbiotic associations between fungi and green and occasionally blue green algae. Several genera of algae and of fungi are involved and the associations are so stable and of such varied but distinct types that the lichens have been classified into genera and species. A variety of incompatibility phenomena are often manifest between individual lichens. Confined to terrestrial habitats and often used as indicators of pollution status of the environment.


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Red lichen on most rocks but not some

... maintenance and one of the jobs would be to keep noxious weeds at bay. So the target species of weeds they may have sprayed at the bottom of the lichen growth may of oversprayed from drift onto t he rocks and killed the lichen in that area, any selective or non selective herbicide would do this. ...

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by vk4vfx
Wed Nov 20, 2013 8:55 am
 
Forum: Botany Discussion
Topic: Red lichen on most rocks but not some
Replies: 3
Views: 1459

Red lichen on most rocks but not some

I am in Sweden inspecting embankment dams. On the one I am right now there is red lichen growing on most of the rocks in the slopes. However, I encountered a part that does not have this red lichen for some reason. Now I am wondering why this is? Could it be because ...

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by smileyours
Tue Sep 10, 2013 9:11 am
 
Forum: Botany Discussion
Topic: Red lichen on most rocks but not some
Replies: 3
Views: 1459

Food Web

... around and V, which is only consumed. Which organisms get no food? Autotrophs. I don't think that any fungi is autotroph (only as part of lichen).

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by JackBean
Fri Jan 04, 2013 1:37 pm
 
Forum: Ecology
Topic: Food Web
Replies: 6
Views: 6324

Need help in Micro!

... as well as nutrient requirements for fungal growth. 4.List and discuss the life cycles of the (5) groups of mycoses. 5. Compare and contrast Lichen with Algae. What is the importance of cyanobacteria. 6. Describe and discuss the similarities of the Lichen thallus and the animal cell membrane. ...

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by whitecaddy26
Thu Feb 09, 2012 7:36 pm
 
Forum: Microbiology
Topic: Need help in Micro!
Replies: 11
Views: 4988

Re:

... example in certain species of moths. The "normal" camouflage of the moth is light so that it can rest again trunks of birches and among lichen and remain unnoticed by predators. If there happens to be a mutation that turns the moth's colour darker, it is quickly spotted and eaten by ...

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by biohazard
Thu Oct 13, 2011 12:56 pm
 
Forum: Evolution
Topic: The Implausible Engines of Evolution
Replies: 40
Views: 66333
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