BIOL 306 Lecture Notes - Lecture 21: Vesper Bat, Rarefaction, Hair Cell
15 Jan 2018
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Biol 306: neural basis of behavior: sensorimotor integration: echolocation i. Announcements: lectures 21 to 27 (inclusively) are taught by professor watt. Lectures 21 and later are not included on the second midterm. Topics to be covered in the following lectures: motor systems, escape circuits, hunting strategies and larger systems (hippocampus, cerebellum, etc. ) Topics covered in echolocation (lectures 21 & 22): background bat facts, why ultrasound, how echolocation is done. Echolocation is an example of active sensing: interaction of animal with environment using self-generated energy (as opposed to passive sensing) Bats: production of ultrasound cries for echolocation. Weakly electric fish (covered by prof. krahe in lectures 28, 29): production of electric fields to sense environment in murky water. Bats are nocturnal, so use echolocation to instead of vision of exploit nocturnal environment. Bats are the only true flying mammals. Only 3 out of ~1100 species feed on blood. Mostly visual foragers only 1 genus uses echolocation (roussettus)
