I see that it's available on line, so the June issue is probably the one it
will be in.
Thanks Bernie, will keep an eye out for it.
Jim
On Thu, May 5, 2011 at 11:36 AM, Bernie Krause <>wro=
te:
>
>
> Thank you, Jim. Should be a new paper (more on Soundscape Ecology) in
> the next edition of Landscape Ecology, co-written with colleagues from
> Purdue.
>
> Bernie
>
> On May 5, 2011, at 11:27 AM, Jim Morgan wrote:
>
> > Amazing observations Bernie, your studies are on the cutting edge
> > and I
> > congratulate you.
> >
> > Looking forward to your paper, I hope you will keep us updated on it.
> >
> > My best,
> >
> > Jim
> >
> >
> >
> > On Wed, May 4, 2011 at 6:29 PM, Bernie Krause
> > <>wrote:
> >
> >> Pacific tree frogs are about the size of the tip of your little
> >> finger. Yet, tiny as they are, their voices have been measured at
> >> 85dBA from 4.5m (15 ft.). Dominant individuals find resonant places
> >> to
> >> project their voices far and loudly.
> >>
> >> This spring, there are two around our small lap pool. The dominant
> >> frog =96 as it has for the past several years =96 sets up shop in a 1
> >> inch
> >> outlet pipe at one end of the pool that it uses as a resonator. Its
> >> competition has nothing but an open grass-like area about 3m (10 ft
> >> away) from the main dude in which to vocalize. The open space
> >> disperses its voice and it appears to be much lower in level. Rather
> >> than chorusing and frequency niches, these two compete for temporal
> >> niches; first one will vocalize (usually the dominant one with the
> >> higher-pitched and more urgent-sounding voice), followed by a weaker
> >> and lower frequency sounding second individual.
> >>
> >> What was not recognized before, is that they also mimic each other.
> >> When the dominant voice changes, the sub-dominant individual follows.
> >>
> >> Here=92s the link to a short clip made about 10 days ago showing both
> >> the temporal niche exchange and mimickry. We=92ll be doing a paper on
> >> this observation but wanted to share it with the group, first.
> >>
> >> Bernie Krause
> >>
> >> http://soundcloud.com/wildsanctuary/pactreefrogs0411/s-T8vci
> >> Recorder: H4n (internal mics), 44.1/24
> >> Date/Time: 27 Apr 2011, 2023 Hrs
> >> Weather: clear, calm, 50% humidity, 68F/20C
> >> Location: Glen Ellen, CA, approx. 122.5W/38.4N
> >>
> >>
> >> Wild Sanctuary
> >> POB 536
> >> Glen Ellen, CA 95442
> >> 707-996-6677
> >> http://www.wildsanctuary.com
> >>
> >> Google Earth zooms: http://earth.wildsanctuary.com
> >> SKYPE: biophony
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> ------------------------------------
> >>
> >> "While a picture is worth a thousand words, a
> >> sound is worth a thousand pictures." R. Murray Schafer via Bernie
> >> Krause.
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> > ------------------------------------
> >
> > "While a picture is worth a thousand words, a
> > sound is worth a thousand pictures." R. Murray Schafer via Bernie
> > Krause.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
> Wild Sanctuary
> POB 536
> Glen Ellen, CA 95442
> 707-996-6677
> http://www.wildsanctuary.com
>
> Google Earth zooms: http://earth.wildsanctuary.com
> SKYPE: biophony
>
>
>
|