<address>Title: <strong>JEB Bioacoustic articles</strong></address>
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<P><B><FONT FACE="Times New Roman">Bioacoustic articles:</FONT></B>
</P>
<BR>
<P><FONT FACE="Times New Roman">Journal of Experimental Biology: March 15
2003, Volume 206, Issue 6.</FONT>
</P>
<P><FONT FACE="Times New Roman">Michele Franz and Franz Goller</FONT>
<UL><UL>
<P><FONT FACE="Times New Roman">Respiratory patterns and oxygen consumption in
singing zebra finches<BR>
J Exp Biol 2003 206: 967-978.</FONT>
</P>
</UL></UL>
<P><FONT FACE="Times New Roman">Dagmar v. Helversen, Marc W. Holderied, and
Otto v. Helversen</FONT>
<UL><UL>
<P><FONT FACE="Times New Roman">Echoes of bat-pollinated bell-shaped flowers:
conspicuous for nectar-feeding bats? J Exp Biol 2003 206: 1025-1034.</FONT>
</P>
<BR>
<BR>
<BR>
</UL></UL>
<P><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">Stephen J.
Insley, Ph.D.</FONT></SPAN>
<BR><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">Hubbs-SeaWorld
Research Institute</FONT></SPAN>
<BR><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">2595 Ingraham
St. </FONT></SPAN>
<BR><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">San Diego CA
92109</FONT></SPAN>
</P>
<P><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">Tel: (619)
226-3879</FONT></SPAN>
<BR><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">Fax: (619)
226-3944</FONT></SPAN>
<BR><SPAN LANG="en"><FONT COLOR="#000000" SIZE=2 FACE="Arial">Email: [EMAIL
PROTECTED]</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> </SPAN>
</P>
>From Mon, 17 Feb 2003 11:20:06 -0800
From: Dave Mellinger <>
To:
Date: Mon, 17 Feb 2003 11:20:06 -0800
Subject: article available
Message-Id:
to him, not me. -Dave Mellinger
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>Date: Fri, 14 Feb 2003 19:00:40 -0800
>From: Steve Insley <[EMAIL PROTECTED]>
>Subject: RE: bioacoustics articles: JEB
>
>Contact [EMAIL PROTECTED] for reprints.
>
>Insley, S.J., Paredes, R. and Jones, I. 2003. Sex differences in razorbill
(Alca torda) parent-offspring vocal recognition. J. Experimental Biology,
206 (1): 25-31.
>
>SUMMARY
>
>We investigated differences in parent-offspring vocal recognition between
males and females in a natural population of razorbills (Alca torda), a
long-lived and highly social species of auk (Family: Alcidae). Razorbills
provide bi-parental care to their chicks while at the nest, after which the
male is the sole caregiver for an additional period at sea.
Parent-offspring recognition in razorbills is most challenging once the
chick becomes mobile, when the chick leaves the nest and goes to sea with
the male parent. It is during this period when selection pressure acting on
recognition behaviour is expected to be strongest. As a result, we
predicted that parent-offspring recognition would be better developed in
the male parent, that is, show a paternal bias. To test this prediction we
used vocal playback experiments conducted on breeding razorbills at the
Gannet Islands, Labrador, 2001. We found (1) most positive responses to
playbacks (vocal and phonotactic) occurred close to fledging, (2) males
responded more to calls from their chicks than to calls from strange
chicks, (3) females responded indifferently to calls from their own or
strange chicks, and (4) chicks responded more to calls from their male
parent than to calls from other adult males. The results provide clear
evidence of mutual vocal recognition between the male parent and the chick
but not between the female parent and the chick, supporting the prediction
that parent-offspring recognition is male biased in this species. Such a
bias could have important social implications for a variety of behavioural
and basic life history traits such as cooperation and sex-biased dispersal.
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