→8→882m0 ②ee (a)Individual Oxic zones zore cyanabacterh 060 GCO+6H.O Anoxic zone Sanda 2 Gu,d 24 lgate redUcing DaceR( EHA Populations, guilds, and communities-an example of microbial community structure in a lake ecosystem. (a) microbial guilds consist of populations of cells of various species that arise ecosystem. For simplicity, only three microbial communities are chemoorganotrophic, aerobic chemmorganotrophic, and anaerobic. In the anaerobe community, examples of guild structure are givenPopulations, guilds, and communities-an example of microbial community structure in a lake ecosystem. (a) Microbial guilds consist of populations of cells of various species that arise ecosystem. For simplicity, only three microbial communities are chemoorganotrophic, aerobic chemmorganotrophic, and anaerobic. In the anaerobe community, examples of guild structure are given