{"thcode":2,"term":{"code":1089,"name":"species diversity","parent":92,"scope":"An ecological concept incorporating both the number of species in a particular sampling area and the evenness with which individuals are distributed among the various species."},"uf":[],"bt":[{"code":92,"name":"biodiversity","parent":921,"scope":"The variety in form, genetics, and ecological roles of organisms within a specific geographic area."},{"code":921,"name":"population and community ecology","parent":1174,"scope":"Interactions of a single species (population) or an association of different species (community) occupying a particular region, including their biotic and abiotic environments."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[]}