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Magnetic versus celestial orientation in migrating birds
1Zoologisches Institut, Johann Wolfgang Goethe-Universität, Siesmaverstraβe 70, Postfach 11 19 32, D-6000 Frankfurt am Main, FRG.
Trends in Ecology & Evolution
|January 14, 2011
Summary
Bird migration navigation relies on multiple cues like the sun, stars, and magnetic fields. Recent research is revealing how these factors interact to guide birds over long distances.
Area of Science:
- Ornithology
- Animal Behavior
- Navigation
Background:
- Avian orientation research has identified celestial bodies and the magnetic field as key navigational aids.
- Environmental factors such as wind and weather also influence bird migration.
- The complex interplay between these orientation cues remained poorly understood for decades.
Purpose of the Study:
- To investigate the integration of multiple sensory cues in avian navigation.
- To understand how birds accomplish long-distance migratory journeys.
Main Methods:
- Review of experimental orientation research over 35 years.
- Analysis of studies on sun, star, and magnetic compass use.
- Examination of the role of environmental factors in bird orientation.
Main Results:
- Sun, stars, and magnetic fields are established orientation cues for migrating birds.
- Environmental factors like wind and weather are recognized contributors to navigation.
- Recent advancements are beginning to elucidate the synergistic mechanisms underlying avian migration.
Conclusions:
- Understanding the integration of diverse navigational mechanisms is crucial for explaining long-distance bird migration.
- Ongoing research is making progress in deciphering how multiple cues enable birds to navigate thousands of kilometers.
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