Parameter Tree:
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES

Definition:
Range Changes with respect to Migration include forays outside the home
range, usually in search of suitable habitat or mating
opportunities. 


Reference:
Feldhamer, G., L.Drickamer, S.Vessey, J.Merritt. 1999. Mammalogy: Adaptation,
Diversity, Ecology. McGraw Hill-Hill Companies, Inc.