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2. Ecological economics - Wikipedia

   en.wikipedia.org/wiki/Ecological_economics

   The "sink function" describes an environment's ability to absorb and render harmless waste and pollution: when waste output exceeds the limit of the sink function, long-term damage occurs. [ 46 ] : 8 Some persistent pollutants, such as some organic pollutants and nuclear waste are absorbed very slowly or not at all; ecological economists ...

3. Microbial mat - Wikipedia

   en.wikipedia.org/wiki/Microbial_mat

   A microbial mat is a multi-layered sheet or biofilm of microbial colonies, composed of mainly bacteria and/or archaea. Microbial mats grow at interfaces between different types of material, mostly on submerged or moist surfaces, but a few survive in deserts. [1] A few are found as endosymbionts of animals.

4. Food web - Wikipedia

   en.wikipedia.org/wiki/Food_web

   Sink web - one or more node(s), all of their prey, all the food that these prey eat, and so on. Community (or connectedness) web - a group of nodes and all the connections of who eats whom. Energy flow web - quantified fluxes of energy between nodes along links between a resource and a consumer.

5. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

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   AOL latest headlines, entertainment, sports, articles for business, health and world news.

6. Biological pump - Wikipedia

   en.wikipedia.org/wiki/Biological_pump

   Once this carbon is fixed into soft or hard tissue, the organisms either stay in the euphotic zone to be recycled as part of the regenerative nutrient cycle or once they die, continue to the second phase of the biological pump and begin to sink to the ocean floor. The sinking particles will often form aggregates as they sink, which greatly ...

7. Carbon sink - Wikipedia

   en.wikipedia.org/wiki/Carbon_sink

   A carbon sink is a natural or artificial carbon sequestration process that "removes a greenhouse gas, an aerosol or a precursor of a greenhouse gas from the atmosphere". [ 2 ] : 2249 These sinks form an important part of the natural carbon cycle .

8. Hydrothermal vent - Wikipedia

   en.wikipedia.org/wiki/Hydrothermal_vent

   The charged surfaces of iron (oxy)hydroxide minerals effectively adsorb elements such as phosphorus, vanadium, arsenic, and rare earth metals from seawater; therefore, although hydrothermal plumes may represent a net source of metals such as Fe and Mn to the oceans, they can also scavenge other metals and non-metalliferous nutrients such as P ...

9. Community (ecology) - Wikipedia

   en.wikipedia.org/wiki/Community_(ecology)

   A bear with a salmon. Interspecific interactions such as predation are a key aspect of community ecology.. In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage.