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Mammalogy 408 - Echolocation
random
18
Biology
Undergraduate 4
05/04/2010

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Cards

Term
What two birds echolocate? How?
Definition
Cave swiftlet, Oilbird
Term
What aquatic animals echolocate
Definition
odondoceti, phocidae
Term
What families in rodentia can echolocate?
Definition
muridae - rat
Term
What family in afrosoricida can echolocate?
Definition
tenrecidae
Term
What family in soricomorpha can echolocate
Definition
sorex - blarina brevicauda
Term
T or F primates can echolocate
Definition
T
Term
What is the audible sound range for human
Definition
20-20,000 Hz
Term
What range do bats here?
Definition
10-120 kHz
Term
which mammal can hear the highest frequency
Definition
odontoceti - 200 kHx
Term
Explain bat self-deafening
Definition
they can alter the tensor tympani and stapedius muscle to eliminate sound at 140 dB
Term
Walk through how humans hear sound
Definition
Sound wave strikes tympanum
Sound converted to mechanical vibrations
Amplified & transmitted by ossicles to oval window
Vibrations in fluid stimulate hair cells & transmit to brain
Term
What are three types of echolocation
Definition
tongue-clicks, laryngeal & nasal
Term
Why do bats echolocate. What is the main reason
Definition
the main reason is for prey detection. they also use it to navigate.
Term
what is does the tensor tympani do?
Definition
changes tension on tympanic membrane
Term
what does the stapedius muscle do?
Definition
changes the angle at which stapes contact the oval window
Term

label tensor tympani, tympanic membrane, stapedius muscle, and oval window

 

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Definition
[image]

9 - tensor tympani
5 - stapedius muscle
6 - oval window
7 - tympanic membrane
Term
what are the 4 prey and habitat effect call structures
Definition
open-habitat, edge-habitat, closed-habitat, fishing bats
Term
what are the two main suborders of chiroptera
Definition
yinpterochiroptera & yangochiroptera
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