{"thcode":2,"term":{"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."},"uf":[],"bt":[{"code":629,"name":"land use change","parent":548,"scope":"Effect of changing land use patterns on ecological systems."},{"code":548,"name":"human impacts","parent":1174,"scope":"The effects, intentional or unintentional, beneficial or harmful, direct or indirect, which human activities have upon the environment and living things."},{"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":[{"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."}]}