biogeochemical cycle
111Mixotroph — A mixotroph is a microorganism that can use a mix of different sources of energy and carbon. Possible are alternations between photo and chemotrophy, between litho and organotrophy, between auto and heterotrophy or a combination of it. Mixotrophs …
112Microbial loop — The microbial loop describes a trophic pathway in the marine microbial food web where dissolved organic carbon (DOC) is returned to higher trophic levels via the incorporation into bacterial biomass, and coupled with the classic food chain formed …
113Microbial food web — The microbial food web refers the combined trophic interactions among microbes in aquatic environments. These microbes include viruses, bacteria, algae, heterotrophic protists (such as ciliates and flagellates). In aquatic environments, microbes… …
114Community (ecology) — Ecological community redirects here. For human community organized around economic and ecological sustainability, see ecovillage. Interspecific interactions such as predation are a key aspect of community ecology.[citation needed …
115Mesopredator release hypothesis — Raccoons (Procyon lotor) and skunks (Mephitis mephitis) are mesopredators, here they share cat food in a suburban backyard. The mesopredator release hypothesis is a relatively new hypothesis from 1988[1] which describes the …
116Patch dynamics — For the use of the term in physics, see Patch dynamics (physics). Patch dynamics is a conceptual approach to ecosystem and habitat analysis that emphasizes dynamics of heterogeneity within a system (i.e. that each area of an ecosystem is made up… …
117Occupancy-abundance relationship — In macroecology, the occupancy abundance (O A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well documented relationships in… …
118Mesotrophic soil — Mesotrophic soils are soils with a moderate inherent fertility. An indicator of soil fertility is its base status, which is expressed as a ratio relating the major nutrient cations (calcium, magnesium, potassium and sodium) found there to the… …
119Trophic state index — The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a body of water s trophic state index (TSI). Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water …
120Non-trophic networks — Any action or influence that species have on each other is considered a biological interaction. These interactions between species can be considered in several ways. One such way is to depict interactions in the form of a network, which… …
