2012-07-10 10:22:43.0 [mpmorahan] insert Definition (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);
2012-06-26 12:39:46.0 [gee-cee] Insert Concept add broader relation (SPECIES MIGRATION [0de668aa-cc97-482d-a0eb-cddcb1a705b6,39889] - BIOSPHERIC INDICATORS [76943142-e5a9-4ecf-b496-050dd3d97101,39883]);
SPECIES MIGRATION
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.
BIOSPHERIC INDICATORS