Chapter 18 Outline
The Adaptive Significance of Animal Navigation
- Navigational abilities promote reproductive success
- Navigational abilities facilitate food acquisition
- Migrating animals need navigation
Navigational Strategies
- Trail following is the most rudimentary form of animal navigation
- Piloting animals follow a discontinuous series of learned cues
- Path integration is a form of dead reckoning
- Animals can derive compass information from environmental cues
- Some animals appear to possess a map sense
- BOX 18.1 Magnetoreceptors and Magnetoreception Kenneth J. Lohmann
- Sea turtles exemplify the degree of our understanding of navigation
Innate and Learned Components of Navigation
- Some forms of navigation have strong innate aspects
- The hippocampus is a critical brain area for vertebrate spatial learning and memory
- BOX 18.2 Migratory Navigation in Monarch Butterflies: Sensory and Genomic Information