We used a hydrophone to record moles, Rachael. We put a captured one
in a large soundproofed terrarium (about 4 feet x 3 feet or 1.3m x
1m), filled it with healthy moist dirt and vegetation, dropped a
hydrophone down into the material and recorded not only the digging
and munching, but tiny vox, as well.
For earthworms we did much the same setup and got the signature of
the critters moving thru the medium. Wonder if the signature is
something that robins might hear (or sense thru the pads of their
feet)?
Bernie
>Hello,
>
>I'm doing some research on the ecology of moles. I wondered if I could pic=
k
>your brains. Knowing what moles are up to in their tunnels is (obviuously!=
)
>not terribly easy. People have radiotracked them (sticking a radiotag on t=
he
>mole then picking up the signal with a reciever on the surface) but the ta=
gs
>don't stay on very long and it's not particularly nice for the mole. I hav=
e
>been thinking about the possibility of using the sound of the mole
>digging/running along its tunnels/possibly eating as a way of monitoring i=
ts
>activity. Some subterranean mammals also use accoustic and/or seismic
>communication though it's not known if the mole does.
>
>Has anyone ever tried listening to/recording underground animal noises? If
>so did it work?! Does any one have any suggestions for equipment?
>
>Any ideas greatly appreciated!
>
>Thanks
>
>Rachael
>
>_________________________________________________________________
>Express yourself with cool emoticons - download MSN Messenger today!
>http://www.msn.co.uk/messenger
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
--
Wild Sanctuary, Inc.
P. O. Box 536
Glen Ellen, California 95442-0536
Tel: (707) 996-6677
Fax: (707) 996-0280
http://www.wildsanctuary.com
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