1 - Sulfur Dioxide and Lichens
http://hub.terc.edu/terc/gl/LICHENS/LICHEN-16.html
Lichens are good indicators of environmental pollution. This location
relates lichen distribution and the effects of sulfur dioxide in the atmosphere.
2 - What Does Pollution Do to Lichens?
http://hub.terc.edu/terc/gl/LICHENS/LICHEN-17.html
This site emphasizes the influence of sulfur dioxide on the growth
of lichens.
4 - Moss-Lichen
http://pasture.ecn.purdue.edu/agen521/epadir/wetlands/moss-lichen.html
This moss-lichen site provides links to a variety of wetland habitats
- includes tundra, fens, bogs.
6 - Lichen Growth Forms
http://hub.terc.edu/terc/gl/LICHENS/LICHEN-13.html
This location includes a presentation of three morphological categories
- crustose, foliose and fruticose.
7 - Lichens-Nature's Perfect Marrieage
http://daphne.palomar.edu/wayne/WW0504.htm#Lich
The value of a cooperative marriage between organisms is outlined
at this site. Includes meeting and bonding.
8 - Lichens as Bioindicators
http://hub.terc.edu/terc/gl/LICHENS/LICHEN-1.html
Bioindicators are environmental components which illustrate a growth
pattern which is sensitive to the presence of pollutants. Explore this
topic at this site.
9 - What are Lichens?
http://hub.terc.edu/terc/gl/LICHENS/LICHEN-12.html
This site provides basic information about the biology of lichens.