{"thcode":2,"term":{"code":2055,"name":"environmental DNA","parent":314,"scope":"Nuclear or mitochondrial DNA released into the environment as bodily secretions, hair, or similar materials other than whole individuals.  Used to detect organisms that are not observed directly."},"uf":[{"name":"eDNA","usewith":false}],"bt":[{"code":314,"name":"ecosystem diversity","parent":92,"scope":"Measure of the variety of biological communities and habitats important for ecological stability."},{"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":[]}