Sea turtles: Navigation and orientation

Abstract:

The initial offshore migration of hatchling turtles can be accomplished with a suite of straightforward orientation steps involving visual cues, wave cues, and a magnetic compass sense. Later, a more complex series of inherited responses to magnetic waymarks help guide pelagic juveniles and keep them within their nursery habitat. As turtles mature, they gain experience with geographic patterns of magnetic variation and learn to find goals based on magnetic positional information. Thus, coastal juveniles and adults can locate feeding grounds after seasonal absences and adults can return accurately to their nesting beaches. In addition, hatchlings may imprint on magnetic map information about their home beaches and use this information to return to their natal areas years later to nest.

Año de publicación:

2019

Keywords:

• Loggerhead
• Navigation
• Magnetic intensity
• Orientation
• Magnetic inclination
• magnetoreception
• geomagnetic imprinting
• Magnetic map
• Magnetic Field
• Green turtle
• Natal homing
• sea turtle
• MIGRATION

Fuente:

scopus