AustralieFrV1, PascalFrancis, Corpus, bibRecord, 004944

Energy expenditure for parental care may be trivial for brooding pythons, Python regius

Identifieur interne : 004944 ( PascalFrancis/Corpus ); précédent : 004943; suivant : 004945

Energy expenditure for parental care may be trivial for brooding pythons, Python regius

Auteurs : Fabien Aubret ; Xavier Bonnet ; Richard Shine ; Stéphanie Maumelat

Source :

Animal behaviour [ 0003-3472 ] ; 2005.

RBID : Pascal:05-0258504

Descripteurs français

Pascal (Inist)
- Dépense énergétique, Soin parental, Investissement parental, Poids corporel, Température ambiante, Déshydratation, Reptilia, Femelle, Captivité, Taille ponte, Reproduction, Python regius.

English descriptors

KwdEn :
- Body weight, Captivity, Clutch size, Dehydration, Energetic cost, Female, Parental care, Parental investment, Reproduction, Reptilia, Room temperature.

Abstract

Intensive parental care improves reproductive success. Why, then, do most animal species not provide parental care to their progeny? Life history theory suggests that the costs must be too high unless they are balanced by considerable fitness benefits. The notion that intensive parental care necessarily entails major costs is based both on intuition and on abundant empirical data. We monitored intensive parental care during brooding in 48 female ball pythons in equatorial Africa (south Togo). Female ball pythons remain coiled around their clutch for 2 months and refuse to feed during nest attendance. Surprisingly, brooding females lost less than 6% of their initial body mass over this 2-month period. The magnitude of mass loss was independent of the duration of brooding (experimentally manipulated to 0, 15 or 60 days) or clutch size (normal, enlarged and reduced clutch sizes). Maternal brooding substantially improved hatching success at little energy cost to the female. This paradoxical result reflects the high ambient temperatures in the study area, meaning that only rarely did nest-attending females need to shiver (a costly thermogenic behaviour observed in all python species). The presence of the mother tightly coiled on the clutch reduced water loss and avoided deleterious yolk desiccation. Thus, intensive brooding over a long period does not necessarily entail major energy expenditure for the mother, but none the less can significantly improve reproductive success. Maternal energy costs during brooding (direct expenditure and possible foregone foraging opportunities) were not influenced by clutch size, demonstrating fecundity-independent costs of reproduction.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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C01	`01`		`ENG`	@0 Intensive parental care improves reproductive success. Why, then, do most animal species not provide parental care to their progeny? Life history theory suggests that the costs must be too high unless they are balanced by considerable fitness benefits. The notion that intensive parental care necessarily entails major costs is based both on intuition and on abundant empirical data. We monitored intensive parental care during brooding in 48 female ball pythons in equatorial Africa (south Togo). Female ball pythons remain coiled around their clutch for 2 months and refuse to feed during nest attendance. Surprisingly, brooding females lost less than 6% of their initial body mass over this 2-month period. The magnitude of mass loss was independent of the duration of brooding (experimentally manipulated to 0, 15 or 60 days) or clutch size (normal, enlarged and reduced clutch sizes). Maternal brooding substantially improved hatching success at little energy cost to the female. This paradoxical result reflects the high ambient temperatures in the study area, meaning that only rarely did nest-attending females need to shiver (a costly thermogenic behaviour observed in all python species). The presence of the mother tightly coiled on the clutch reduced water loss and avoided deleterious yolk desiccation. Thus, intensive brooding over a long period does not necessarily entail major energy expenditure for the mother, but none the less can significantly improve reproductive success. Maternal energy costs during brooding (direct expenditure and possible foregone foraging opportunities) were not influenced by clutch size, demonstrating fecundity-independent costs of reproduction.
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Format Inist (serveur)

NO :	PASCAL 05-0258504 INIST
ET :	Energy expenditure for parental care may be trivial for brooding pythons, Python regius
AU :	AUBRET (Fabien); BONNET (Xavier); SHINE (Richard); MAUMELAT (Stéphanie)
AF :	Centre d'Etudes Biologiques de Chizé-CNRS/France (1 aut., 2 aut.); School of Animal Biology M092, University of Western Australia/Australie (1 aut.); Conseil Général des Deux-Sèvres, CEBC-CNRS/France (2 aut., 4 aut.); Biological Sciences A08, University of Sydney/Australie (2 aut., 3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Animal behaviour; ISSN 0003-3472; Coden ANBEA8; Royaume-Uni; Da. 2005; Vol. 69; No. p.5; Pp. 1043-1053; Bibl. 1 p.3/4
LA :	Anglais
EA :	Intensive parental care improves reproductive success. Why, then, do most animal species not provide parental care to their progeny? Life history theory suggests that the costs must be too high unless they are balanced by considerable fitness benefits. The notion that intensive parental care necessarily entails major costs is based both on intuition and on abundant empirical data. We monitored intensive parental care during brooding in 48 female ball pythons in equatorial Africa (south Togo). Female ball pythons remain coiled around their clutch for 2 months and refuse to feed during nest attendance. Surprisingly, brooding females lost less than 6% of their initial body mass over this 2-month period. The magnitude of mass loss was independent of the duration of brooding (experimentally manipulated to 0, 15 or 60 days) or clutch size (normal, enlarged and reduced clutch sizes). Maternal brooding substantially improved hatching success at little energy cost to the female. This paradoxical result reflects the high ambient temperatures in the study area, meaning that only rarely did nest-attending females need to shiver (a costly thermogenic behaviour observed in all python species). The presence of the mother tightly coiled on the clutch reduced water loss and avoided deleterious yolk desiccation. Thus, intensive brooding over a long period does not necessarily entail major energy expenditure for the mother, but none the less can significantly improve reproductive success. Maternal energy costs during brooding (direct expenditure and possible foregone foraging opportunities) were not influenced by clutch size, demonstrating fecundity-independent costs of reproduction.
CC :	002A13C02
FD :	Dépense énergétique; Soin parental; Investissement parental; Poids corporel; Température ambiante; Déshydratation; Reptilia; Femelle; Captivité; Taille ponte; Reproduction; Python regius
FG :	Vertebrata; Comportement reproducteur; Facteur milieu
ED :	Energetic cost; Parental care; Parental investment; Body weight; Room temperature; Dehydration; Reptilia; Female; Captivity; Clutch size; Reproduction
EG :	Vertebrata; Breeding behavior; Environmental factor
SD :	Costo energético; Cuidado parental; Inversión parental; Peso corporal; Temperatura ambiente; Deshidratación; Reptilia; Hembra; Cautividad; Tamaño puesta; Reproducción
LO :	INIST-7067.354000125476920050
ID :	05-0258504

Links to Exploration step

Pascal:05-0258504

Le document en format XML

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<front><div type="abstract" xml:lang="en">Intensive parental care improves reproductive success. Why, then, do most animal species not provide parental care to their progeny? Life history theory suggests that the costs must be too high unless they are balanced by considerable fitness benefits. The notion that intensive parental care necessarily entails major costs is based both on intuition and on abundant empirical data. We monitored intensive parental care during brooding in 48 female ball pythons in equatorial Africa (south Togo). Female ball pythons remain coiled around their clutch for 2 months and refuse to feed during nest attendance. Surprisingly, brooding females lost less than 6% of their initial body mass over this 2-month period. The magnitude of mass loss was independent of the duration of brooding (experimentally manipulated to 0, 15 or 60 days) or clutch size (normal, enlarged and reduced clutch sizes). Maternal brooding substantially improved hatching success at little energy cost to the female. This paradoxical result reflects the high ambient temperatures in the study area, meaning that only rarely did nest-attending females need to shiver (a costly thermogenic behaviour observed in all python species). The presence of the mother tightly coiled on the clutch reduced water loss and avoided deleterious yolk desiccation. Thus, intensive brooding over a long period does not necessarily entail major energy expenditure for the mother, but none the less can significantly improve reproductive success. Maternal energy costs during brooding (direct expenditure and possible foregone foraging opportunities) were not influenced by clutch size, demonstrating fecundity-independent costs of reproduction.</div>
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<s5>07</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Inversión parental</s0>
<s5>07</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Poids corporel</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Body weight</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Peso corporal</s0>
<s5>10</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Température ambiante</s0>
<s5>13</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Room temperature</s0>
<s5>13</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Temperatura ambiente</s0>
<s5>13</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Déshydratation</s0>
<s5>14</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Dehydration</s0>
<s5>14</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Deshidratación</s0>
<s5>14</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Reptilia</s0>
<s2>NS</s2>
<s5>20</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Reptilia</s0>
<s2>NS</s2>
<s5>20</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Reptilia</s0>
<s2>NS</s2>
<s5>20</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Femelle</s0>
<s5>21</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Female</s0>
<s5>21</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Hembra</s0>
<s5>21</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Captivité</s0>
<s5>23</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Captivity</s0>
<s5>23</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Cautividad</s0>
<s5>23</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Taille ponte</s0>
<s5>24</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Clutch size</s0>
<s5>24</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Tamaño puesta</s0>
<s5>24</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Reproduction</s0>
<s5>35</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Reproduction</s0>
<s5>35</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Reproducción</s0>
<s5>35</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Python regius</s0>
<s4>INC</s4>
<s5>86</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Comportement reproducteur</s0>
<s5>53</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Breeding behavior</s0>
<s5>53</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Conducta reproductora</s0>
<s5>53</s5>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Facteur milieu</s0>
<s5>69</s5>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Environmental factor</s0>
<s5>69</s5>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Factor medio</s0>
<s5>69</s5>
</fC07>
<fN21><s1>178</s1>
</fN21>
<fN44 i1="01"><s1>PSI</s1>
</fN44>
<fN82><s1>PSI</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 05-0258504 INIST</NO>
<ET>Energy expenditure for parental care may be trivial for brooding pythons, Python regius</ET>
<AU>AUBRET (Fabien); BONNET (Xavier); SHINE (Richard); MAUMELAT (Stéphanie)</AU>
<AF>Centre d'Etudes Biologiques de Chizé-CNRS/France (1 aut., 2 aut.); School of Animal Biology M092, University of Western Australia/Australie (1 aut.); Conseil Général des Deux-Sèvres, CEBC-CNRS/France (2 aut., 4 aut.); Biological Sciences A08, University of Sydney/Australie (2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Animal behaviour; ISSN 0003-3472; Coden ANBEA8; Royaume-Uni; Da. 2005; Vol. 69; No. p.5; Pp. 1043-1053; Bibl. 1 p.3/4</SO>
<LA>Anglais</LA>
<EA>Intensive parental care improves reproductive success. Why, then, do most animal species not provide parental care to their progeny? Life history theory suggests that the costs must be too high unless they are balanced by considerable fitness benefits. The notion that intensive parental care necessarily entails major costs is based both on intuition and on abundant empirical data. We monitored intensive parental care during brooding in 48 female ball pythons in equatorial Africa (south Togo). Female ball pythons remain coiled around their clutch for 2 months and refuse to feed during nest attendance. Surprisingly, brooding females lost less than 6% of their initial body mass over this 2-month period. The magnitude of mass loss was independent of the duration of brooding (experimentally manipulated to 0, 15 or 60 days) or clutch size (normal, enlarged and reduced clutch sizes). Maternal brooding substantially improved hatching success at little energy cost to the female. This paradoxical result reflects the high ambient temperatures in the study area, meaning that only rarely did nest-attending females need to shiver (a costly thermogenic behaviour observed in all python species). The presence of the mother tightly coiled on the clutch reduced water loss and avoided deleterious yolk desiccation. Thus, intensive brooding over a long period does not necessarily entail major energy expenditure for the mother, but none the less can significantly improve reproductive success. Maternal energy costs during brooding (direct expenditure and possible foregone foraging opportunities) were not influenced by clutch size, demonstrating fecundity-independent costs of reproduction.</EA>
<CC>002A13C02</CC>
<FD>Dépense énergétique; Soin parental; Investissement parental; Poids corporel; Température ambiante; Déshydratation; Reptilia; Femelle; Captivité; Taille ponte; Reproduction; Python regius</FD>
<FG>Vertebrata; Comportement reproducteur; Facteur milieu</FG>
<ED>Energetic cost; Parental care; Parental investment; Body weight; Room temperature; Dehydration; Reptilia; Female; Captivity; Clutch size; Reproduction</ED>
<EG>Vertebrata; Breeding behavior; Environmental factor</EG>
<SD>Costo energético; Cuidado parental; Inversión parental; Peso corporal; Temperatura ambiente; Deshidratación; Reptilia; Hembra; Cautividad; Tamaño puesta; Reproducción</SD>
<LO>INIST-7067.354000125476920050</LO>
<ID>05-0258504</ID>
</server>
</inist>
</record>

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Energy expenditure for parental care may be trivial for brooding pythons, Python regius

Energy expenditure for parental care may be trivial for brooding pythons, Python regius

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