ArticleScientific reports2016
Early-life sexual segregation: ontogeny of isotopic niche differentiation in the Antarctic fur seal.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 33 citations in OpenAlex.
- The benthic-pelagic continuum: Age class and sex differences in the use of the vertical dimension by a rare pinniped.Ecology and evolution · 2023Article
- Winter distribution of juvenile and sub-adult male Antarctic fur seals (Arctocephalus gazella) along the western Antarctic Peninsula.Scientific reports · 2021Article
- Movement patterns and activity levels are shaped by the neonatal environment in Antarctic fur seal pups.Scientific reports · 2021Article
- Application of Combined Analyses of Stable Isotopes and Stomach Contents for Understanding Ontogenetic Niche Shifts in Silver Croaker (International journal of environmental research and public health · 2021Article
- Intra-specific Niche Partitioning in Antarctic Fur Seals, Arctocephalus gazella.Scientific reports · 2020Article
- Migratory strategies of juvenile northern fur seals (Callorhinus ursinus): bridging the gap between pups and adults.Scientific reports · 2019Article
- Age and sex differences in niche use at molt and its effect on plumage coloration characteristics in a bird.Current zoology · 2019Article
- Stable isotopes document the winter foraging ecology of king penguins and highlight connectivity between subantarctic and Antarctic ecosystems.Ecology and evolution · 2018Article
- Risk exposure trade-offs in the ontogeny of sexual segregation in Antarctic fur seal pups.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
Corrections and comments
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Authors and funding
6 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Investigating the ontogeny of niche differentiation enables to determine at which life-stages sexual segregation arises, providing insights into the main factors driving resource partitioning. We investigated the ontogeny of foraging ecology in Antarctic fur seals (Arctocephalus gazella), a highly dimorphic species with contrasting breeding strategies between sexes. Sequential δ(13)C and δ(15)N values of whiskers provided a longitudinal proxy of the foraging niche throughout the whole life of seals, from weaning, when size dimorphism is minimal to the age of 5. Females exhibited an early-life ontogenetic shift, from a total segregation during their first year at-sea, to a similar isotopic niche as breeding females as early as age 2. In contrast, males showed a progressive change in isotopic niche throughout their development such that 5-year-old males did not share the same niche as territorial bulls. Interestingly, males and females segregated straight after weaning with males appearing to feed in more southerly habitats than females. This spatial segregation was of similar amplitude as observed in breeding adults and was maintained throughout development. Such early-life niche differentiation is an unusual pattern and indicates size dimorphism and breeding constraints do not directly drive sexual segregation contrary to what has been assumed in otariid seals.
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