Analyses of 16S rRNA gene sequences from environmental DNA have shown the extraordinary richness of phylogenetic types found in many microbial habitats (Ley et al., 2006; Walker and Pace, 2007). As ...

Ecology is studied at different levels: individual, population, community, ecosystem, biosphere (these pictures are from a different text). Understanding interactions may help in the removal and/or ...

A food web shows the energy flow through interconnected food chains in an ecosystem Predator species need to be adapted for efficient hunting if they are to catch enough food to survive. Prey species ...