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    <title>UTas ePrints - Offspring-driven local dispersal in female sand lizards (Lacerta agilis)</title>
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<meta content="dispersal;
inbreeding;
maternal–offspring effects;
nongenetic factors;
‘public information hypothesis’;
relatedness" name="eprints.keywords" />
<meta content="We report on a field study in which determinants of female breeding dispersal
(i.e. the shift in the mean home range coordinates between successive
breeding events) was investigated. Offspring were released in full sib groups
(or half sib ones if there was within-clutch multiple paternity) at a separation
distance from the females that varied between ‘families’. This allowed for
analysis of ‘offspring nearness’ effects on maternal dispersal. When a female’s
offspring were released more closely to her, she responded with greater
dispersal. Furthermore, when the data set was truncated at 100 m maternal–
offspring separation distance at offspring release (because perception at longer
distances is likely to be unrealistic), maternal dispersal resulted in greater
separation distance between female and offspring in the following year.
A corresponding analysis for juveniles revealed no effect of maternal nearness
on offspring dispersal but identified a significant effect of clutch size, to our
surprise with dispersal declining with increasing clutch size. We discuss this
result in a context of the ‘public information hypothesis’ (reinterpreted for
juveniles in a nonsocial foraging species), suggesting that conspecific abundance
perhaps acts as an indicator of local habitat quality. Thus, our analysis
suggests a microgeographic structuring of the adult female population driven
by genetic factors, either through inbreeding avoidance, or from simply
avoiding individuals with a similar genotype regardless of their pedigree
relatedness, while a nongenetic factor seems more important in their offspring.
" name="eprints.abstract" />
<meta content="2004" name="eprints.date" />
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<meta content="Journal of Evolutionary Biology" name="eprints.publication" />
<meta content="17" name="eprints.volume" />
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<meta content="van Baalen, M. &amp; Hochberg, M.E. 2001. Dispersal in antagonistic
interactions. In: Dispersal (J. Clobert, E. Danchin, A. A. Dhondt
&amp; J. D. Nichols, eds), pp. 299–310. Oxford University Press,
New York.
Barton, N.H. 2001. The evolutionary consequences of gene flow
and local adaptation: future approaches. In: Dispersal
(J. Clobert, E. Danchin, A. A. Dhondt &amp; J. D. Nicholas, eds),
pp. 329–340. Oxford University Press, New York.
Bischoff, W. 1984. Lacerta agilis Linnaeus 1758 – Zauneidechse.
In: Handbuch der Reptilien und Amphibien Europas. Band 2/I, Echsen II (W. Bo¨
hme, ed.), pp. 23–68. AULA-verlag, Wiesbaden.
Boulinier, T., McCoy, K.D. &amp; Sorci, G. 2001. Dispersal and
parasitism. In: Dispersal (J. Clobert, E. Danchin, A. A. Dhondt
&amp; J. D. Nichols, eds), pp. 169–179. Oxford University Press,
New York.
Clotfelter, E.D. &amp; Pagling, A.D. 2003. Bystanders to contests
between conspecifics are primed for increased aggression in
male fighting fish. Anim. Behav. 66: 343–347.
De Fraipont, M., Clobert, J., John-Alder, J. &amp; Meylan, S. 2000.
Increased pre-natal maternal corticosterone promotes philopatry
of offspring in common lizards (Lacerta vivipara). J. Anim.
Ecol. 69: 404–412.
Doligez, B., Danchin, E. &amp; Clobert, J. 2002. Public information
and breeding habitat selection in a wild bird population.
Science 297: 1168–1170.
Dufty, A.M. &amp; Belthoff, J.R. 2001. Proximate mechanisms of
natal dispersal: the role of body condition and hormones. In:
Dispersal (J. Clobert, E. Danchin, A.A. Dhondt &amp; J. D. Nichols,
eds), pp. 217–229. Oxford University Press, New York.
Fisher, R.A. 1930. The Genetical Theory of Natural Selection, Second
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In: Narrow roads of gene land, Volume 1: Evolution of social
behaviour (W. D. Hamilton, ed.), pp. 377–385. W. H. Freeman
and Company, New York.
Hanski, I. 2001. Population dynamic consequences of dispersal
in local populations and in metapopulations. In: Dispersal
(J. Clobert, E. Danchin, A. A. Dhondt &amp; J. D. Nichols, eds),
pp. 283–298. Oxford University Press, New York.
Herb, B.M., Biron, S.A. &amp; Kidd, M.R. 2003. Courtship by
subordinate male Siamese fighting fish, Betta splendens: their
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Holt, R.D. &amp; Barfield, M. 2001. On the relationship between the
ideal free distribution and the evolution of dispersal. In:
Dispersal (J. Clobert, E. Danchin, A. A. Dhondt &amp; J. D. Nichols,
eds), pp. 83–95. Oxford University Press, New York.
Ims, R.A &amp; Hjermann, D.Ø. 2001. Condition-dependent dispersal.
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the fighting ability of opponents alters contest behaviour in
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and behavioural consequences of a density manipulation in the
common lizard (Lacerta vivipara). Ecoscience 4: 300–310.
Madsen, T., Olsson, M., Gullberg, A., Wittzell, H. &amp; Tegelstro¨m, H.
2000. Population size and genetic diversity in sand lizards
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1992. Density dependence in the common lizard:
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lizard Lacerta agilis – a preliminary report. Mertensiella 1: 86–91.
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adder snakes: causes and consequences. J. Hered. 92: 190–197.
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determinants of offspring survival, Lacerta agilis. Funct. Ecol. 15:
443–450.
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in sand lizards (Lacerta agilis): why early clutches are better.
J. Evol. Biol. 10: 369–381.
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breeding dispersal in the sand lizard (Lacerta agilis). Biol.
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Choice (P. Bateson, ed.), pp. 141–164. Cambridge University
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evolution of natal dispersal. In: Dispersal (J. Clobert, E.
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Roff, D.A. &amp; Fairbairn, D.J. 2001. The genetic basis of dispersal
and migration, and its consequences for the evolution
of correlated traits. In: Dispersal (J. Clobert, E. Danchin,
A. A. Dhondt &amp; J. D. Nichols, eds), pp. 191–202. Oxford
University Press, New York.
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Danchin, A. A. Dhondt &amp; J. D. Nichols, eds), pp. 230–242.
Oxford University Press, New York.
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foragers: what information is used. Anim. Behav. 45: 721–728.
Weisser, W.W. 2001. The effects of predation on dispersal. In:
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eds), pp. 180–188. Oxford University Press, New York.
Wright, S. 1930. The genetical theory of natural selection, by
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<meta content="We report on a field study in which determinants of female breeding dispersal
(i.e. the shift in the mean home range coordinates between successive
breeding events) was investigated. Offspring were released in full sib groups
(or half sib ones if there was within-clutch multiple paternity) at a separation
distance from the females that varied between ‘families’. This allowed for
analysis of ‘offspring nearness’ effects on maternal dispersal. When a female’s
offspring were released more closely to her, she responded with greater
dispersal. Furthermore, when the data set was truncated at 100 m maternal–
offspring separation distance at offspring release (because perception at longer
distances is likely to be unrealistic), maternal dispersal resulted in greater
separation distance between female and offspring in the following year.
A corresponding analysis for juveniles revealed no effect of maternal nearness
on offspring dispersal but identified a significant effect of clutch size, to our
surprise with dispersal declining with increasing clutch size. We discuss this
result in a context of the ‘public information hypothesis’ (reinterpreted for
juveniles in a nonsocial foraging species), suggesting that conspecific abundance
perhaps acts as an indicator of local habitat quality. Thus, our analysis
suggests a microgeographic structuring of the adult female population driven
by genetic factors, either through inbreeding avoidance, or from simply
avoiding individuals with a similar genotype regardless of their pedigree
relatedness, while a nongenetic factor seems more important in their offspring.
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    <h1 class="ep_tm_pagetitle">Offspring-driven local dispersal in female sand lizards (Lacerta agilis)</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Ryberg, Karen</span> and <span class="person_name">Olsson, Mats</span> and <span class="person_name">Wapstra, Erik</span> and <span class="person_name">Madsen, Thomas</span> and <span class="person_name">Anderholm, Sofia</span> and <span class="person_name">Ujvari, Beata</span> (2004) <xhtml:em>Offspring-driven local dispersal in female sand lizards (Lacerta agilis).</xhtml:em> Journal of Evolutionary Biology, 17 . pp. 1215-1220. ISSN 1010-061X</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2198/1/Offspringdriven.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2198/1/Offspringdriven.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />166Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="2784" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1111/j.1420-9101.2004.00798.x">http://dx.doi.org/10.1111/j.1420-9101.2004.00798.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">We report on a field study in which determinants of female breeding dispersal&#13;
(i.e. the shift in the mean home range coordinates between successive&#13;
breeding events) was investigated. Offspring were released in full sib groups&#13;
(or half sib ones if there was within-clutch multiple paternity) at a separation&#13;
distance from the females that varied between ‘families’. This allowed for&#13;
analysis of ‘offspring nearness’ effects on maternal dispersal. When a female’s&#13;
offspring were released more closely to her, she responded with greater&#13;
dispersal. Furthermore, when the data set was truncated at 100 m maternal–&#13;
offspring separation distance at offspring release (because perception at longer&#13;
distances is likely to be unrealistic), maternal dispersal resulted in greater&#13;
separation distance between female and offspring in the following year.&#13;
A corresponding analysis for juveniles revealed no effect of maternal nearness&#13;
on offspring dispersal but identified a significant effect of clutch size, to our&#13;
surprise with dispersal declining with increasing clutch size. We discuss this&#13;
result in a context of the ‘public information hypothesis’ (reinterpreted for&#13;
juveniles in a nonsocial foraging species), suggesting that conspecific abundance&#13;
perhaps acts as an indicator of local habitat quality. Thus, our analysis&#13;
suggests a microgeographic structuring of the adult female population driven&#13;
by genetic factors, either through inbreeding avoidance, or from simply&#13;
avoiding individuals with a similar genotype regardless of their pedigree&#13;
relatedness, while a nongenetic factor seems more important in their offspring.&#13;
</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">dispersal;&#13;
inbreeding;&#13;
maternal–offspring effects;&#13;
nongenetic factors;&#13;
‘public information hypothesis’;&#13;
relatedness</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270706.html">270000 Biological Sciences &gt; 270700 Ecology and Evolution &gt; 270706 Life Histories (incl. Population Ecology)</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2198</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Erik Wapstra</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">15 Oct 2007 14:25</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2198;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=2198">item control page</a></p>
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