Reproductive success is energetically linked to foraging efficiency in Antarctic fur seals.
Identifieur interne : 000E26 ( PubMed/Corpus ); précédent : 000E25; suivant : 000E27Reproductive success is energetically linked to foraging efficiency in Antarctic fur seals.
Auteurs : Tiphaine Jeanniard-Du-Dot ; Andrew W. Trites ; John P Y. Arnould ; Christophe GuinetSource :
- PloS one [ 1932-6203 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- growth & development : Fur Seals.
- metabolism : Fur Seals.
- physiology : Fur Seals.
- Animals, Body Size, Energy Metabolism, Female, Predatory Behavior, Reproduction, Weaning.
Abstract
The efficiency with which individuals extract energy from their environment defines their survival and reproductive success, and thus their selective contribution to the population. Individuals that forage more efficiently (i.e., when energy gained exceeds energy expended) are likely to be more successful at raising viable offspring than individuals that forage less efficiently. Our goal was to test this prediction in large long-lived mammals under free-ranging conditions. To do so, we equipped 20 lactating Antarctic fur seals (Arctocephalus gazella) breeding on Kerguelen Island in the Southern Ocean with tags that recorded GPS locations, depth and tri-axial acceleration to determine at-sea behaviours and detailed time-activity budgets during their foraging trips. We also simultaneously measured energy spent at sea using the doubly-labeled water (DLW) method, and estimated the energy acquired while foraging from 1) type and energy content of prey species present in scat remains, and 2) numbers of prey capture attempts determined from head acceleration. Finally, we followed the growth of 36 pups from birth until weaning (of which 20 were the offspring of our 20 tracked mothers), and used the relative differences in body mass of pups at weaning as an index of first year survival and thus the reproductive success of their mothers. Our results show that females with greater foraging efficiencies produced relatively bigger pups at weaning. These mothers achieved greater foraging efficiency by extracting more energy per minute of diving rather than by reducing energy expenditure. This strategy also resulted in the females spending less time diving and less time overall at sea, which allowed them to deliver higher quality milk to their pups, or allowed their pups to suckle more frequently, or both. The linkage we demonstrate between reproductive success and the quality of individuals as foragers provides an individual-based quantitative framework to investigate how changes in the availability and accessibility of prey can affect fitness of animals.
DOI: 10.1371/journal.pone.0174001
PubMed: 28453563
Links to Exploration step
pubmed:28453563Le document en format XML
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<front><div type="abstract" xml:lang="en">The efficiency with which individuals extract energy from their environment defines their survival and reproductive success, and thus their selective contribution to the population. Individuals that forage more efficiently (i.e., when energy gained exceeds energy expended) are likely to be more successful at raising viable offspring than individuals that forage less efficiently. Our goal was to test this prediction in large long-lived mammals under free-ranging conditions. To do so, we equipped 20 lactating Antarctic fur seals (Arctocephalus gazella) breeding on Kerguelen Island in the Southern Ocean with tags that recorded GPS locations, depth and tri-axial acceleration to determine at-sea behaviours and detailed time-activity budgets during their foraging trips. We also simultaneously measured energy spent at sea using the doubly-labeled water (DLW) method, and estimated the energy acquired while foraging from 1) type and energy content of prey species present in scat remains, and 2) numbers of prey capture attempts determined from head acceleration. Finally, we followed the growth of 36 pups from birth until weaning (of which 20 were the offspring of our 20 tracked mothers), and used the relative differences in body mass of pups at weaning as an index of first year survival and thus the reproductive success of their mothers. Our results show that females with greater foraging efficiencies produced relatively bigger pups at weaning. These mothers achieved greater foraging efficiency by extracting more energy per minute of diving rather than by reducing energy expenditure. This strategy also resulted in the females spending less time diving and less time overall at sea, which allowed them to deliver higher quality milk to their pups, or allowed their pups to suckle more frequently, or both. The linkage we demonstrate between reproductive success and the quality of individuals as foragers provides an individual-based quantitative framework to investigate how changes in the availability and accessibility of prey can affect fitness of animals.</div>
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<Abstract><AbstractText>The efficiency with which individuals extract energy from their environment defines their survival and reproductive success, and thus their selective contribution to the population. Individuals that forage more efficiently (i.e., when energy gained exceeds energy expended) are likely to be more successful at raising viable offspring than individuals that forage less efficiently. Our goal was to test this prediction in large long-lived mammals under free-ranging conditions. To do so, we equipped 20 lactating Antarctic fur seals (Arctocephalus gazella) breeding on Kerguelen Island in the Southern Ocean with tags that recorded GPS locations, depth and tri-axial acceleration to determine at-sea behaviours and detailed time-activity budgets during their foraging trips. We also simultaneously measured energy spent at sea using the doubly-labeled water (DLW) method, and estimated the energy acquired while foraging from 1) type and energy content of prey species present in scat remains, and 2) numbers of prey capture attempts determined from head acceleration. Finally, we followed the growth of 36 pups from birth until weaning (of which 20 were the offspring of our 20 tracked mothers), and used the relative differences in body mass of pups at weaning as an index of first year survival and thus the reproductive success of their mothers. Our results show that females with greater foraging efficiencies produced relatively bigger pups at weaning. These mothers achieved greater foraging efficiency by extracting more energy per minute of diving rather than by reducing energy expenditure. This strategy also resulted in the females spending less time diving and less time overall at sea, which allowed them to deliver higher quality milk to their pups, or allowed their pups to suckle more frequently, or both. The linkage we demonstrate between reproductive success and the quality of individuals as foragers provides an individual-based quantitative framework to investigate how changes in the availability and accessibility of prey can affect fitness of animals.</AbstractText>
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<CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>J Exp Mar Bio Ecol. 2000 May 18;248(1):53-78</RefSource>
<PMID Version="1">10764884</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>PLoS One. 2015 Jun 24;10(6):e0128789</RefSource>
<PMID Version="1">26107647</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Exp Biol. 1992 Sep;170:35-42</RefSource>
<PMID Version="1">1402612</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>PLoS One. 2017 Mar 29;12 (3):e0173797</RefSource>
<PMID Version="1">28355282</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Oecologia. 1990 Jan;82(1):56-67</RefSource>
<PMID Version="1">28313138</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Exp Biol. 1994 Apr;189(1):105-15</RefSource>
<PMID Version="1">9317430</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Proc Natl Acad Sci U S A. 2013 Feb 5;110(6):2199-204</RefSource>
<PMID Version="1">23341596</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Mar Biol. 2011;158(2):413-427</RefSource>
<PMID Version="1">24391256</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Nature. 2002 Mar 28;416(6879):389-95</RefSource>
<PMID Version="1">11919621</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Exp Biol. 2006 Nov;209(Pt 22):4524-32</RefSource>
<PMID Version="1">17079722</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Fish Physiol Biochem. 2009 Mar;35(1):181-8</RefSource>
<PMID Version="1">19189243</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Oecologia. 1993 May;94(2):278-285</RefSource>
<PMID Version="1">28314043</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Ecology. 2010 Jul;91(7):2044-55</RefSource>
<PMID Version="1">20715627</PMID>
</CommentsCorrections>
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