Haven't a clue, Rachael, how the worm mvt signature is utilized
and/or picked up by other critters. But, I'll just bet that it
is...somehow...and probably more than we'd imagine. Sounds like an
interesting study subject.
Bernie
>Thanks for the replies about the moles. It sounds like listening
>to/recording them is a feasible plan.
>
>I wonder whether the signature of worms that you recorded Bernie is what
>moles use to locate them. You would have thought that they would have some
>way of finding them rather than digging randomly or waiting for them to fa=
ll
>in their tunnels.
>
>Thanks
>
>Rachael
>
>>From: Wild Sanctuary <>
>>Reply-To:
>>To:
>>Subject: Re: [Nature Recordists] moles
>>Date: Wed, 14 Apr 2004 06:53:45 -0700
>>
>>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
>>pick
>> >your brains. Knowing what moles are up to in their tunnels is
>>(obviuously!)
>> >not terribly easy. People have radiotracked them (sticking a radiotag =
on
>>the
>> >mole then picking up the signal with a reciever on the surface) but th=
e
>>tags
>> >don't stay on very long and it's not particularly nice for the mole. I
>>have
>> >been thinking about the possibility of using the sound of the mole
>> >digging/running along its tunnels/possibly eating as a way of monitori=
ng
>>its
>> >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
>
>_________________________________________________________________
>Tired of 56k? Get a FREE BT Broadband connection
>http://www.msn.co.uk/specials/btbroadband
>
>
>
>
>"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
________________________________________________________________________
________________________________________________________________________
|