{"thcode":2,"term":{"code":522,"name":"habitat alteration and disturbance","parent":310,"scope":"Changes in the environments where plants and animals live.  Includes natural changes as well as results of human actions, deliberate or accidental."},"uf":[{"name":"ecological disturbance","usewith":false},{"name":"environmental disturbance","usewith":false},{"name":"habitat destruction","usewith":false},{"name":"habitat disturbance","usewith":false}],"bt":[{"code":310,"name":"ecological processes","parent":101,"scope":"Dynamic biogeochemical interactions that occur among and between biotic and abiotic components of the biosphere."},{"code":101,"name":"biological and physical processes","parent":1174,"scope":"All continuing activities, functions, and phenomena associated with organisms and non-living matter."},{"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":1378,"name":"fire damage","parent":522,"scope":"Destruction of surficial materials and vegetation by burning."}],"rt":[{"code":311,"name":"ecology","parent":650,"scope":"Study of the relations between living plants and animals and their environment."},{"code":2033,"name":"habitat fragmentation","parent":629,"scope":"Disruption of once-continuous natural habitats by human activities such as agriculture, urbanization, resource extraction, and the construction of roads, railways, fences, and pipelines."},{"code":2300,"name":"habitat suitability indices","parent":317,"scope":"Numerical values calculated for a given area representing the capacity of a habitat to support a given species, as the ratio of observed habitat conditions to optimum conditions."}]}