<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18928">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2 face=Arial>
<H1 class=articleTitle sizset="5" sizcache="2"><SPAN class=mainTitle><FONT
size=3> </H1></DIV>
<DIV id=publishedOnlineDate sizset="5" sizcache="2"><FONT size=2>Journal of
Avian Biology</FONT></DIV>
<DIV><FONT size=2>Article first published online: 2 JUL 2012</FONT></DIV>
<DIV id=doi><FONT
size=2>DOI: 10.1111/j.1600-048X.2012.05643.x</FONT></DIV></FONT></SPAN>
<H1 class=articleTitle sizset="5" sizcache="2"><SPAN class=mainTitle><FONT
size=3>Specificity of grouping behaviour: comparing colony sizes for the same
seabird species in distant populations</FONT></SPAN></H1>
<DIV id=cr1 sizset="5" sizcache="2">Roger Jovani, Holger Schielzeth, Roddy
Mavor, Daniel Oro</DIV>
<DIV id=publishedOnlineDate sizset="5" sizcache="2"><SUP>*</SUP>R. Jovani,
Estación Biológica de Doñana, CSIC, Américo Vespucio s/n, ES-41092 Sevilla,
Spain. E-mail: <!--TODO: clickthrough URL--><A title="Link to email address"
href="mailto:jovani@ebd.csic.es" shape=rect><FONT
color=#007e8a>jovani@ebd.csic.es</FONT></A></DIV>
<DIV id=additionalInformation>
<DIV style="CLEAR: left">
<DIV id=publicationHistoryDetails jQuery1341266561101="12">
<H4>Summary<A
href="http://onlinelibrary.wiley.com/myprofile/displaySavedSearches"
shape=rect><FONT color=#5c5c5c></FONT></A></H4></DIV></DIV></DIV>
<DIV id=promosAndTools>
<FORM id=searchByCitation class=searchForm method=post name=citationSearchForm
action=/search/citation/results>
<DIV class=viewFullArticleAndPdf xmlns="http://www.w3.org/1999/xhtml"
xmlns:doc="urn://wiley-online-library/content/document"
xmlns:ol="http://www.wiley.com/namespaces/ol/xsl-lib">
<DIV class=viewFullArticleAndPdfOptions><A class=pdfLink
title="Article in pdf format"
href="http://onlinelibrary.wiley.com/doi/10.1111/j.1600-048X.2012.05643.x/pdf"
shape=rect><STRONG><FONT color=#007e8a></FONT></STRONG></A></DIV></DIV>Animal
collective patterns such as group size frequency distributions often show
substantial intraspecific variation, suggesting low species-specific
consistency. Here, we dissect intraspecific vs interspecific components of
colony size variation to estimate the repeatability (<EM>R</EM>) of colony size
frequency distribution (CSFD) statistics for seabird species breeding in at
least two out of four distant geographic areas of the Northern Hemisphere (21
species; 57 populations; 21 665 colonies; 9 326 479 breeding pairs). Colony
sizes were highly variable both within and between species. We estimated the
proportion of between-species variation using the repeatability statistic.
Colony size-related statistics of CSFDs (e.g. geometric mean) showed high
repeatabilities (<EM>R</EM> = 0.73–0.88), and shape-related measures ranged from
null (kurtosis), moderate (fit to a log-normal distribution, <EM>R</EM> = 0.62)
to highly repeatable (e.g. skewness, <EM>R</EM> = 0.74–0.87). We thus show that
species collective patterns can be at the same time highly variable within
species and a robust species-specific trait that bridge ecological
spatio-temporal heterogeneities.</FORM></DIV></FONT><BR>
<BR>
__________ Información de ESET NOD32 Antivirus, versión de la base de firmas de virus 7265 (20120702) __________<BR>
<BR>
ESET NOD32 Antivirus ha comprobado este mensaje.<BR>
<BR>
<A HREF="http://www.eset.com">http://www.eset.com</A><BR>
</BODY></HTML>