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    <gcmd:termsOfUse>https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf</gcmd:termsOfUse>
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    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/bd46a0bf-5c06-48af-a6c9-022417b1fffd</gcmd:viewer>
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    <skos:prefLabel xml:lang="en">TROPHIC DYNAMICS</skos:prefLabel>
    <gcmd:reference gcmd:text="Nebel, Bernard J. and Richard T. Wright.  Environmental Science: the Way the World Works.-6th ed. 1998.  Prentice Hall, Inc. Upper Saddle River, New Jersey." xml:lang="en"/>
    <skos:definition xml:lang="en">Trophic dynamics are major interactions among organisms which involvefeeding relationships.	  The feeding levels are called trophic levelswhere all producers belong to the first trophic level; all primaryconsumers (in other words, all herbivores), whether feeding on living ordead producers, belong to the second trophic level; organisms feeding onthese herbivores belong to the third level, and so on.</skos:definition>
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