Reproductive investment in relation to survival risk in a livebearing fish
Identifieur interne : 001185 ( Main/Exploration ); précédent : 001184; suivant : 001186Reproductive investment in relation to survival risk in a livebearing fish
Auteurs : K. Lindström [Finlande] ; C. St Mary [États-Unis] ; B. Gunnels [États-Unis] ; R. Hale [États-Unis] ; C. Osenberg [États-Unis] ; S. Stevens [États-Unis] ; J. Vonesh [États-Unis] ; J. Wilson [États-Unis]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 2003-12.
Abstract
Animals are expected to change their allocation of resources into offspring depending on their future survival probabilities. Under environmental conditions where survival probabilities are low, we expect to see an increased investment in current reproduction. Fish show an exceptionally wide range of reproductive modes, including systems where parents can be expected to have extensive control of investment in their offspring. In the least killifish, Heterandria formosa, a small livebearing fish, fertilization is internal and females extensively provision developing embryos. Hence females are likely to have control over parturition time and size of their offspring. Our expectation was that under predator threat females should produce offspring at a higher rate than in control situations. Females were given visual and chemical exposure to mosquito fish and sunfish predators. The time until the birth of the first brood was longer in the presence of predators than in the control. However, subsequent birth intervals showed the opposite pattern. In the presence of predators ensuing brood intervals were shorter than in the control treatment. The effect of mosquito fish and sunfish was similar. Despite the decrease in pregnancy interval, newborn offspring were still larger in the presence of sunfish. Our results suggest that the initial response of refraining from reproduction later changes to an increased reproductive output. This increase, however, did not manifest itself as a quality vs. number trade‐off as offspring were also bigger in the sunfish treatment. This suggests that reproductive investment increases in the presence of predators and this may represent terminal investment.
Url:
DOI: 10.1111/j.1095-8649.2003.0216x.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001612
- to stream Istex, to step Curation: 001610
- to stream Istex, to step Checkpoint: 000A14
- to stream Main, to step Merge: 001239
- to stream Main, to step Curation: 001185
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Reproductive investment in relation to survival risk in a livebearing fish</title>
<author><name sortKey="Lindstrom, K" sort="Lindstrom, K" uniqKey="Lindstrom K" first="K." last="Lindström">K. Lindström</name>
</author>
<author><name sortKey="St Mary, C" sort="St Mary, C" uniqKey="St Mary C" first="C." last="St Mary">C. St Mary</name>
</author>
<author><name sortKey="Gunnels, B" sort="Gunnels, B" uniqKey="Gunnels B" first="B." last="Gunnels">B. Gunnels</name>
</author>
<author><name sortKey="Hale, R" sort="Hale, R" uniqKey="Hale R" first="R." last="Hale">R. Hale</name>
</author>
<author><name sortKey="Osenberg, C" sort="Osenberg, C" uniqKey="Osenberg C" first="C." last="Osenberg">C. Osenberg</name>
</author>
<author><name sortKey="Stevens, S" sort="Stevens, S" uniqKey="Stevens S" first="S." last="Stevens">S. Stevens</name>
</author>
<author><name sortKey="Vonesh, J" sort="Vonesh, J" uniqKey="Vonesh J" first="J." last="Vonesh">J. Vonesh</name>
</author>
<author><name sortKey="Wilson, J" sort="Wilson, J" uniqKey="Wilson J" first="J." last="Wilson">J. Wilson</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:B0354A4F519AA120A7A5A09F9B4C773300F54D0B</idno>
<date when="2003" year="2003">2003</date>
<idno type="doi">10.1111/j.1095-8649.2003.0216x.x</idno>
<idno type="url">https://api.istex.fr/document/B0354A4F519AA120A7A5A09F9B4C773300F54D0B/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">001612</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001612</idno>
<idno type="wicri:Area/Istex/Curation">001610</idno>
<idno type="wicri:Area/Istex/Checkpoint">000A14</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000A14</idno>
<idno type="wicri:doubleKey">0022-1112:2003:Lindstrom K:reproductive:investment:in</idno>
<idno type="wicri:Area/Main/Merge">001239</idno>
<idno type="wicri:Area/Main/Curation">001185</idno>
<idno type="wicri:Area/Main/Exploration">001185</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Reproductive investment in relation to survival risk in a livebearing fish</title>
<author><name sortKey="Lindstrom, K" sort="Lindstrom, K" uniqKey="Lindstrom K" first="K." last="Lindström">K. Lindström</name>
<affiliation wicri:level="4"><country xml:lang="fr" wicri:curation="lc">Finlande</country>
<wicri:regionArea>(1Department of Ecology and Systematics, University of Helsinki, PO Box 65, Biocenter 3, Viikinkaari 1, FIN‐00014 Helsinki</wicri:regionArea>
<orgName type="university">Université d'Helsinki</orgName>
<placeName><settlement type="city">Helsinki</settlement>
<region type="région" nuts="2">Uusimaa</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="St Mary, C" sort="St Mary, C" uniqKey="St Mary C" first="C." last="St Mary">C. St Mary</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Gunnels, B" sort="Gunnels, B" uniqKey="Gunnels B" first="B." last="Gunnels">B. Gunnels</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Hale, R" sort="Hale, R" uniqKey="Hale R" first="R." last="Hale">R. Hale</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Osenberg, C" sort="Osenberg, C" uniqKey="Osenberg C" first="C." last="Osenberg">C. Osenberg</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Stevens, S" sort="Stevens, S" uniqKey="Stevens S" first="S." last="Stevens">S. Stevens</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Vonesh, J" sort="Vonesh, J" uniqKey="Vonesh J" first="J." last="Vonesh">J. Vonesh</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Wilson, J" sort="Wilson, J" uniqKey="Wilson J" first="J." last="Wilson">J. Wilson</name>
<affiliation wicri:level="2"><country xml:lang="fr" wicri:curation="lc">États-Unis</country>
<wicri:regionArea>2Department of Zoology, 223 Bartram Hall, University of Florida, Gainesville, FL 32611‐8525</wicri:regionArea>
<placeName><region type="state">Floride</region>
</placeName>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Journal of Fish Biology</title>
<idno type="ISSN">0022-1112</idno>
<idno type="eISSN">1095-8649</idno>
<imprint><publisher>Blackwell Science Ltd/Inc</publisher>
<pubPlace>Oxford, UK; Malden, USA</pubPlace>
<date type="published" when="2003-12">2003-12</date>
<biblScope unit="volume">63</biblScope>
<biblScope unit="supplement">s1</biblScope>
<biblScope unit="page" from="236">236</biblScope>
<biblScope unit="page" to="236">236</biblScope>
</imprint>
<idno type="ISSN">0022-1112</idno>
</series>
<idno type="istex">B0354A4F519AA120A7A5A09F9B4C773300F54D0B</idno>
<idno type="DOI">10.1111/j.1095-8649.2003.0216x.x</idno>
<idno type="ArticleID">JFB216X</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0022-1112</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Animals are expected to change their allocation of resources into offspring depending on their future survival probabilities. Under environmental conditions where survival probabilities are low, we expect to see an increased investment in current reproduction. Fish show an exceptionally wide range of reproductive modes, including systems where parents can be expected to have extensive control of investment in their offspring. In the least killifish, Heterandria formosa, a small livebearing fish, fertilization is internal and females extensively provision developing embryos. Hence females are likely to have control over parturition time and size of their offspring. Our expectation was that under predator threat females should produce offspring at a higher rate than in control situations. Females were given visual and chemical exposure to mosquito fish and sunfish predators. The time until the birth of the first brood was longer in the presence of predators than in the control. However, subsequent birth intervals showed the opposite pattern. In the presence of predators ensuing brood intervals were shorter than in the control treatment. The effect of mosquito fish and sunfish was similar. Despite the decrease in pregnancy interval, newborn offspring were still larger in the presence of sunfish. Our results suggest that the initial response of refraining from reproduction later changes to an increased reproductive output. This increase, however, did not manifest itself as a quality vs. number trade‐off as offspring were also bigger in the sunfish treatment. This suggests that reproductive investment increases in the presence of predators and this may represent terminal investment.</div>
</front>
</TEI>
<affiliations><list><country><li>Finlande</li>
<li>États-Unis</li>
</country>
<region><li>Floride</li>
<li>Uusimaa</li>
</region>
<settlement><li>Helsinki</li>
</settlement>
<orgName><li>Université d'Helsinki</li>
</orgName>
</list>
<tree><country name="Finlande"><region name="Uusimaa"><name sortKey="Lindstrom, K" sort="Lindstrom, K" uniqKey="Lindstrom K" first="K." last="Lindström">K. Lindström</name>
</region>
</country>
<country name="États-Unis"><region name="Floride"><name sortKey="St Mary, C" sort="St Mary, C" uniqKey="St Mary C" first="C." last="St Mary">C. St Mary</name>
</region>
<name sortKey="Gunnels, B" sort="Gunnels, B" uniqKey="Gunnels B" first="B." last="Gunnels">B. Gunnels</name>
<name sortKey="Hale, R" sort="Hale, R" uniqKey="Hale R" first="R." last="Hale">R. Hale</name>
<name sortKey="Osenberg, C" sort="Osenberg, C" uniqKey="Osenberg C" first="C." last="Osenberg">C. Osenberg</name>
<name sortKey="Stevens, S" sort="Stevens, S" uniqKey="Stevens S" first="S." last="Stevens">S. Stevens</name>
<name sortKey="Vonesh, J" sort="Vonesh, J" uniqKey="Vonesh J" first="J." last="Vonesh">J. Vonesh</name>
<name sortKey="Wilson, J" sort="Wilson, J" uniqKey="Wilson J" first="J." last="Wilson">J. Wilson</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/EsturgeonV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001185 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001185 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Eau |area= EsturgeonV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:B0354A4F519AA120A7A5A09F9B4C773300F54D0B |texte= Reproductive investment in relation to survival risk in a livebearing fish }}
This area was generated with Dilib version V0.6.27. |