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<meta content="Olsson, Mats" name="eprints.creators_name" />
<meta content="Shine, Richard" name="eprints.creators_name" />
<meta content="Wapstra, Erik" name="eprints.creators_name" />
<meta content="mats.olsson@zool.gu.se" name="eprints.creators_id" />
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<meta content="erik.wapstra@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-11-15 04:07:00" name="eprints.datestamp" />
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observational and experimental data" name="eprints.title" />
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<meta content="Life history theory predicts that increasing investments into reproduction compromises
survival and future reproduction. However, demonstrating such costs is confounded
by positive correlations between life history traits. For example, individuals
in good condition may be good at both surviving and reproducing. We studied such
processes in a viviparous snow skink lizard (Niveoscincus microlepidotus) from high
elevation sites in Tasmania, Australia. Our results show a stark difference in costs of
reproduction between unmanipulated females from the natural population versus
experimentally manipulated females (using follicle stimulating hormones). In the
unmanipulated females, females with relatively larger reproductive investments survived
better than females with smaller reproductive investments. In the experimental
group, however, females forced to ‘over-invest’ into a larger clutch survived less well
than controls. Thus, our study confirms the potential dangers of non-experimental
estimation of costs of reproduction." name="eprints.abstract" />
<meta content="2001" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Oikos" name="eprints.publication" />
<meta content="93" name="eprints.volume" />
<meta content="1" name="eprints.number" />
<meta content="121-125" name="eprints.pagerange" />
<meta content="10.1034/j.1600-0706.2001.930113.x" name="eprints.id_number" />
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<meta content="Bauwens, D. and Thoen, C. 1981. Escape tactics and vulnerability
to predation associated with reproduction in the
lizard Lacerta vivipara. – J. Anim. Ecol. 50: 733–743.
Bell, G. and Koufopanou, V. 1986. The cost of reproduction.
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evolutionary biology, vol. 3. Oxford Univ. Press, pp. 48–
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Brodie, E. D., III 1989. Behavioral modification as a means of
reducing the costs of reproduction. – Am. Nat. 134: 225–
238.
Cooper, W. E., Jr., Vitt, L. J., Hedges, R. and Huey, R. B.
1990. Locomotor impairment and defense in gravid lizards
(Eumeces laticeps): behavioral shift in activity may offset
costs of reproduction in an active forager. – Behav. Ecol.
Sociobiol. 27: 153–157.
Gustafsson, L. and Sutherland, W. J. 1988. The costs of
reproduction in the collared flycatcher, Ficedula albicollis.
– Nature 335: 813–815.
Hutchinson, M. N., Robertson, P. and Rawlinson, P. A. 1989.
Redescription and ecology of the endemic Tasmanian scincid
lizards Leiolepisma microlepidotum and L. pretiosum. –
Pap. Proc. R. Soc. Tas. 123: 257–274.
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Olsson, M. and Shine, R. 1999a. Phenotypic plasticity in the
frequency of reproduction in the Tasmanian snow skink,
Niveoscincus microlepidotus. – Copeia 1999: 794–796.
Olsson, M. and Shine, R. 1999b. Timing of parturition as a
maternal care strategy in an alpine lizard species. – Evolution
52: 1861–1864.
Olsson, M. and Shine, R. 2000. Locomotor impairment of
gravid lizards: is the burden physical or physiological. – J.
Evol. Biol. 13: 263–268.
Olsson, M., Birkhead, T. and Shine, R. 1999. Spring emergence
in ectotherms: do males get up early to mate, fight,
or to make sperm? – Biol. J. Linn. Soc. 66: 159–170.
Partridge, L. 1988. An experimentalist’s approach to the role
of the costs of reproduction in the evolution of life-histories.
– In: Grubb, P. J. and Whittaker, J. B. (eds), Toward
a more exact ecology. Blackwell Scientific, pp. 231–246.
Pianka, E. and Parker, W. S. 1975. Age specific reproductive
tactics. – Am. Nat. 109: 453–464.
Reznick, D. 1985. Costs of reproduction: an evaluation of the
empirical evidence. – Oikos 44: 257–267.
Roff, D. 1992. The evolution of life histories. – Chapman and
Hall.
Roff, D. 1997. Evolutionary quantitative genetics. – Chapman
and Hall.
Schwarzkopf, L. 1994. Measuring trade-offs: a review of studies
of costs of reproduction in lizards. – In: Vitt, L. J. and
Pianka, E. R. (eds), Lizard ecology – historical and experimental
perspectives. Princeton Univ. Press, pp. 7–29.
Schwarzkopf, L. and Shine, R. 1992. Costs of reproduction in
lizards: escape tactics and susceptibility to predation. –
Behav. Ecol. Sociobiol. 31: 17–25.
Shine, R. 1980. Costs of reproduction in reptiles. – Oecologia
46: 92–100.
Sinervo, B. and Huey, R. B. 1990. Allometric engineering: an
experimental test of the causes of interpopulational differences
in performance. – Science 248: 1106–1109.
Sinervo, B. and Licht, P. 1991. Hormonal and physiological
control of clutch size, egg size, and egg shape in sideblotched
lizards (Uta stansburiana): constraint on the evolution
of lizard life histories. – J. Exp. Biol. 257: 252–264.
Sinervo, B. and 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., Hedges, R. and Adolph, S. C. 1991. Decreased
sprint speed as a cost of reproduction in the lizard
Sceloporus ocidentalis: variation among populations. – J.
Exp. Biol. 155: 323–336.
Stearns, S. C. 1976. Life-history tactics: a review of the ideas.
– Q. Rev. Biol. 51: 272–278.
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<meta content="Life history theory predicts that increasing investments into reproduction compromises
survival and future reproduction. However, demonstrating such costs is confounded
by positive correlations between life history traits. For example, individuals
in good condition may be good at both surviving and reproducing. We studied such
processes in a viviparous snow skink lizard (Niveoscincus microlepidotus) from high
elevation sites in Tasmania, Australia. Our results show a stark difference in costs of
reproduction between unmanipulated females from the natural population versus
experimentally manipulated females (using follicle stimulating hormones). In the
unmanipulated females, females with relatively larger reproductive investments survived
better than females with smaller reproductive investments. In the experimental
group, however, females forced to ‘over-invest’ into a larger clutch survived less well
than controls. Thus, our study confirms the potential dangers of non-experimental
estimation of costs of reproduction." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Costs of reproduction in a lizard species: a comparison of observational and experimental data</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Olsson, Mats</span> and <span class="person_name">Shine, Richard</span> and <span class="person_name">Wapstra, Erik</span> (2001) <xhtml:em>Costs of reproduction in a lizard species: a comparison of observational and experimental data.</xhtml:em> Oikos, 93 (1). pp. 121-125. ISSN 0030-1299</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/2419/1/2001OlssonetalOikosCostsofrepro.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/2419/1/2001OlssonetalOikosCostsofrepro.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />105Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="3126" 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/10.1034/j.1600-0706.2001.930113.x">http://dx.doi.org/10.1034/j.1600-0706.2001.930113.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Life history theory predicts that increasing investments into reproduction compromises
survival and future reproduction. However, demonstrating such costs is confounded
by positive correlations between life history traits. For example, individuals
in good condition may be good at both surviving and reproducing. We studied such
processes in a viviparous snow skink lizard (Niveoscincus microlepidotus) from high
elevation sites in Tasmania, Australia. Our results show a stark difference in costs of
reproduction between unmanipulated females from the natural population versus
experimentally manipulated females (using follicle stimulating hormones). In the
unmanipulated females, females with relatively larger reproductive investments survived
better than females with smaller reproductive investments. In the experimental
group, however, females forced to ‘over-invest’ into a larger clutch survived less well
than controls. Thus, our study confirms the potential dangers of non-experimental
estimation of costs of reproduction.</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</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 > 270700 Ecology and Evolution > 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">2419</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 Nov 2007 15:07</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=2419;">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&eprintid=2419">item control page</a></p>
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