What Animals Migrate Due To Seasons. Birds gauge the changing of the seasons based on light level from the angle of the sun in the sky and the overall amount of daily light. Migration is usually done seasonally.
When the timing is right for their migrating needs, they will begin their journey. Sixteen species of dolphins (and whales). Migration, in particular, affects biodiversity at regional and global scales, and migratory animals affect ecosystem processes.
• characteristic • hibernation • migration science background 56
Animals will migrate to follow food that has moved on, to follow planting seasons, and to for a favorable climate. University of exeter scientists studied almost 1,300 mammal and bird species and found migrants generally develop faster. Some animals migrate to breed. In the past climate change has induced major ecosystem shifts in some areas and this could happen again resulting in radical unpredictable changes in species present.
