{"thcode":2,"term":{"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."},"uf":[{"name":"life history","usewith":false},{"name":"population energetics","usewith":false},{"name":"radar ecology","usewith":{"code":1727,"name":"doppler radar imaging","parent":948,"scope":"Exploitation of the doppler effect in radar imaging to determine speed of airborne objects such as birds, butterflies, and clouds."}}],"bt":[{"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":[{"code":40,"name":"animal behavior","parent":921,"scope":"The way animals act or react to conditions in the environment and to other organisms, including life patterns such as migration, hibernation, and nocturnal living."},{"code":92,"name":"biodiversity","parent":921,"scope":"The variety in form, genetics, and ecological roles of organisms within a specific geographic area."},{"code":96,"name":"biogeography","parent":921,"scope":"The study of the geographic distributions of plants and animals."},{"code":187,"name":"community ecology","parent":921,"scope":"Study of the relationships of species that interact in a common area."},{"code":319,"name":"ecosystems","parent":921,"scope":"The interacting populations of plants, animals, and  microorganisms occupying a certain area, and their relationship to the environment."},{"code":525,"name":"habitats","parent":921,"scope":"Parts of the physical environment where plants and animals live. Use in combination with terms from organisms and organism groupings (non-taxonomic) to indicate the topic of a species or group of species habitat."},{"code":1796,"name":"phenology","parent":921,"scope":"Study of the response of organisms to seasonal or interannual changes in the environment."},{"code":922,"name":"population dynamics","parent":921,"scope":"Changes in the size, composition, or structure of aggregates of single or multiple species in a specific area over time."},{"code":1688,"name":"symbiosis","parent":921,"scope":"An intimate, prolonged association between two or more organisms of different species that may or may not benefit each member."}],"rt":[{"code":107,"name":"biological population management","parent":776,"scope":"Judicious means of controlling or directing numbers and life conditions of organisms living in a specific locality to achieve a selected goal."},{"code":310,"name":"ecological processes","parent":101,"scope":"Dynamic biogeochemical interactions that occur among and between biotic and abiotic components of the biosphere."},{"code":311,"name":"ecology","parent":650,"scope":"Study of the relations between living plants and animals and their environment."},{"code":317,"name":"ecosystem monitoring","parent":375,"scope":"Recording, evaluating, and actively intervening over time in the interaction of living and nonliving elements in a specific environment."},{"code":776,"name":"natural resource management","parent":689,"scope":"Using a combination of techniques to control or direct the use of resources and limit population size to reach a predetermined goal, such as sustainability."},{"code":978,"name":"relative abundance analysis","parent":189,"scope":"Determination of the percentage of individuals of one group in comparison to the total of all individuals in a given area."}]}