https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.8 2026-04-29T10:52:37.449Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/0de668aa-cc97-482d-a0eb-cddcb1a705b6 2012-06-26 SPECIES MIGRATION Date=2012-06-26 User Id=gee-cee Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=SPECIES MIGRATION [0de668aa-cc97-482d-a0eb-cddcb1a705b6,39889] - BIOSPHERIC INDICATORS [76943142-e5a9-4ecf-b496-050dd3d97101,39883] Date=2012-07-10 User Id=mpmorahan Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: Migration is the relatively long-distance movement of individuals, usually on a seasonal basis. It is a ubiquitous phenomenon, found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The trigger for the migration may be local climate, local availability of food, the season of the year or for mating reasons. language code: en Migration is the relatively long-distance movement of individuals, usually on a seasonal basis. It is a ubiquitous phenomenon, found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The trigger for the migration may be local climate, local availability of food, the season of the year or for mating reasons. 2012-07-10 10:22:43.0