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    <title>UTas ePrints - Offspring size–number strategies: experimental manipulation of offspring size in a viviparous lizard (Lacerta vivipara)</title>
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    <meta content="Olsson, Mats" name="eprints.creators_name" />
<meta content="Wapstra, Erik" name="eprints.creators_name" />
<meta content="Olofsson, C." name="eprints.creators_name" />
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<meta content="Offspring size–number strategies: experimental
manipulation of offspring size in a viviparous lizard
(Lacerta vivipara)" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="270706" name="eprints.subjects" />
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<meta content="1. Aspects of female ‘offspring size vs
number’ strategies were studied in the viviparous
Common Lizard,
Lacerta vivipara
Jacquin, by surgical yolk extraction from ovarian
follicles and ovulated eggs in the oviduct (‘allometric engineering’).
2. This method has previously been applied exclusively to oviparous lizards but here
it is applied to a viviparous taxon.
3. There was a strong negative relationship between the amount of yolk removed and
the size of offspring at birth, and yolk-removed young were smaller and in poorer
condition at birth than their control counterparts from within the same litters.
4. In yolk-removed young physiological performance was positively correlated with
body mass.
5. Maternal resource provisioning thus influences offspring physiological performance,
which suggests ongoing selection on female optimization of the offspring size–number
trade-off." name="eprints.abstract" />
<meta content="2002-02" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Functional Ecology" name="eprints.publication" />
<meta content="16" name="eprints.volume" />
<meta content="1" name="eprints.number" />
<meta content="135-140" name="eprints.pagerange" />
<meta content="10.1046/j.0269-8463.2001.00600.x" name="eprints.id_number" />
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<meta content="Brockelman, W.Y. (1975) Competition, the fitness of offspring
and optimal clutch size. American Naturalist 109, 677–699.
van Damme, R., Bauwens, D. &amp; Verheyen, R.F. (1987) Thermoregulatory
responses to environmental seasonality by the
lizard Lacerta vivipara. Herpetologica 43, 405–415.
Garland, G., Hawkins, E. &amp; Huey, R.B. (1990) Locomotory
capacity and social dominance in male lizards.
Functional Ecology 4, 243–250.
Lack, D. (1947) The significance of clutch size 1. Intraspecific
variation. Ibis 89, 193–197.
Lessells, C.M. (1991) The evolution of life histories.
Behavioural Ecology: an Evolutionary Approach, 3rd edn (eds
J. R. Krebs &amp; N. B. Davies), pp. 32–68. Blackwell Scientific
Publications, Oxford.
van Nuland, G.J. &amp; Strijbosch, H. (1981) Annual rhythmics
of Lacerta vivipara JACQUIN and Lacerta agilis agilis
L. (Sauria, Lacertidae) in the Netherlands. Amphibia Reptilia 2, 83–95.
Olsson, M. &amp; Shine, R. (1997) The limits to reproductive output:
offspring size versus number in the sand lizard (Lacerta
agilis). American Naturalist 149, 179–188.
Roff, D.A. (1992) The Evolution of Life Histories. Chapman
&amp; Hall, New York.
Shine, R. (1985) The evolution of viviparity in reptiles: an
ecological analysis. Biology of the Reptilia, Vol. 15 (eds
C. Gans &amp; F. Billet), pp. 605–694. John Wiley &amp; Sons, New
York.
Shine, R. (1988) Parental care in reptiles. Biology of the
Reptilia, Vol. 16 (eds C. Gans &amp; R. B. Huey), pp. 275–330.
Liss, New York.
Sinervo, B. (1990) The evolution of maternal investment in lizards:
an experimental and comparative analysis of egg size and its
effects on offspring performance. Evolution 44, 279–294.
Sinervo, B. (1998) Adaptation of maternal effects in the
wild: path analysis of natural variation and experimental
tests of causation. Maternal Effects as Adaptations (eds
T. A. Mousseau &amp; C. W. Fox), pp. 288–306. Oxford University
Press, Oxford.
Sinervo, B. &amp; DeNardo, D.F. (1996) Costs of reproduction in
the wild: path analysis of natural selection and experimental
tests of causation. Evolution 50, 1299–1313.
Sinervo, B. &amp; Doughty, P. (1996) Interactive effects of size
and timing of reproduction on offspring reproduction:
experimental, maternal and quantitative genetic aspects.
Evolution 50, 1314–1327.
Sinervo, B. &amp; Huey, R.B. (1990) Allometric engineering: an
experimental test of the causes of interpopulational differences
in performance. Science 248, 1106–1109.
Sinervo, B. &amp; Licht, P. (1991) Hormonal and physiological
control of clutch size, egg size and egg shape in side-blotched
lizards (Uta stansburiana): constraints on the evolution of lizard
life histories. Journal of Experimental Zoology 257, 252–264.
Sinervo, B. &amp; McEdward, L.R. (1988) Developmental
consequences of an evolutionary change in egg size: an
experimental test. Evolution 42, 885–899.
Sinervo, B., Doughty, P., Huey, R.B. &amp; Zamudio, K. (1992)
Allometric engineering: a causal analysis of natural selection
on offspring size. Science 258, 1927–1930.
Smith, C.C. &amp; Fretwell, S.D. (1974) The optimal balance
between size and number of offspring. American Naturalist
108, 499–506.
Stearns, S.C. (1976) Life history tactics: a review of the ideas.
Quarterly Review of Biology 51, 3–47.
Stearns, S.C. (1992) The Evolution of Life Histories, 1st edn.
Oxford University Press, New York.
 
 
 
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<meta content="1. Aspects of female ‘offspring size vs
number’ strategies were studied in the viviparous
Common Lizard,
Lacerta vivipara
Jacquin, by surgical yolk extraction from ovarian
follicles and ovulated eggs in the oviduct (‘allometric engineering’).
2. This method has previously been applied exclusively to oviparous lizards but here
it is applied to a viviparous taxon.
3. There was a strong negative relationship between the amount of yolk removed and
the size of offspring at birth, and yolk-removed young were smaller and in poorer
condition at birth than their control counterparts from within the same litters.
4. In yolk-removed young physiological performance was positively correlated with
body mass.
5. Maternal resource provisioning thus influences offspring physiological performance,
which suggests ongoing selection on female optimization of the offspring size–number
trade-off." name="DC.description" />
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    <h1 class="ep_tm_pagetitle">Offspring size–number strategies: experimental manipulation of offspring size in a viviparous lizard (Lacerta vivipara)</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Olsson, Mats</span> and <span class="person_name">Wapstra, Erik</span> and <span class="person_name">Olofsson, C.</span> (2002) <xhtml:em>Offspring size–number strategies: experimental manipulation of offspring size in a viviparous lizard (Lacerta vivipara).</xhtml:em> Functional Ecology, 16 (1). pp. 135-140. ISSN 0269-8463</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/2338/1/2002OlssonetalFunctionalEcology.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/2338/1/2002OlssonetalFunctionalEcology.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />171Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="2995" 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/10.1046/j.0269-8463.2001.00600.x">http://dx.doi.org/10.1046/j.0269-8463.2001.00600.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">1. Aspects of female ‘offspring size vs&#13;
number’ strategies were studied in the viviparous&#13;
Common Lizard,&#13;
Lacerta vivipara&#13;
Jacquin, by surgical yolk extraction from ovarian&#13;
follicles and ovulated eggs in the oviduct (‘allometric engineering’).&#13;
2. This method has previously been applied exclusively to oviparous lizards but here&#13;
it is applied to a viviparous taxon.&#13;
3. There was a strong negative relationship between the amount of yolk removed and&#13;
the size of offspring at birth, and yolk-removed young were smaller and in poorer&#13;
condition at birth than their control counterparts from within the same litters.&#13;
4. In yolk-removed young physiological performance was positively correlated with&#13;
body mass.&#13;
5. Maternal resource provisioning thus influences offspring physiological performance,&#13;
which suggests ongoing selection on female optimization of the offspring size–number&#13;
trade-off.</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">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at www.blackwell-synergy.com&#13;
</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Allometric engineering, life history, maternal investment&#13;
</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">2338</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">30 Oct 2007 16:14</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=2338;">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=2338">item control page</a></p>
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