Decomposers are animals that eat dead animals or carcasses. They play an important role in an ecosystem by helping break down carcasses. Decomposers in the tundra ecosystem are bacteria, fungi, algae, and mosses.

Foliose Lichens
Foliose Lichens, By: Gerald Klingaman, retired, Cooperative Extension Service, University of Arkansas, Mostly text with a small photo.
Foliose lichens
Foliose lichens, BackYardNature.com, A combination of text and photos.
Physical Environment - Decomposers
Physical Environment - Decomposers, Mission Environment 2007, Massachusetts Institute of Technology, All-text article.
Slime mold
Slime mold, By Euftepan, YouTube.com, Video length: 02:12. Time-lapse movie of slime mold and mushrooms.
Slime Mold (Myxomycota plasmodium) on Log
Slime Mold (Myxomycota plasmodium) on Log, By Lucretius41, YouTube.com, Video length: 0:20.
slime mold dominating
slime mold dominating, From: MsGrimdog, November 23, 2009, YouTube.com, Video length: 01:31.
Slime Mold Photos
Slime Mold Photos, By W.P. Armstrong, Wayne's World, Photos and descriptions of several slime mold specie.
Tundra Biome Decomposers
Tundra Biome Decomposers, By jroll94, blogspot.com, Visit the web site for a photo.