mammalogy lab althoff acoustic monitoring - bats

Mammalogy LABAlthoff

Acoustic Monitoring - BATS

Sound Basics

INFRA SOUND Human ULTRA SOUND

From Neuweiler (1990). Biology of Bats. Fig. 3.24

Best Frequency of Audition (kHz)

Fora

ging

hei

ght a

bove

gro

und

(m)

____________

(some) Ohio Bats General Range of Echolocations

35kHz 40kHz >40kHz

Silver-haired batBig Brown bat

Red bat

20 kHz

25 kHz

Hoary bat

Indiana batLittle brown batLong-eared bat

___kHz bats

______ kHz bats

Acoustic Monitoring EquipmentACTIVE vs. PASSIVE• ________

• Wildlife Acoustics – __________ __________

Acoustic Monitoring SoftwareANALYSIS• ____________• SonoBat 3.0x• BatScan

Keying Out/ID:_________ & __________

Keying Out/ID:Range & Steepness

Can you ID?Range: _________Steepness: Steep Curved FlatSpecies: _______________

1

Can you ID?Range: _________Steepness: Steep Curved FlatSpecies: _______________

2

Can you ID?Range: _________Steepness: Steep Curved FlatSpecies: _______________

3

Can you ID?Range: _________Steepness: Steep Curved FlatSpecies: _______________

4