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Can I read Intra-specific Niche Partitioning in Antarctic Fur Seals, Arctocephalus gazella on EtoBox?
Intra-specific Niche Partitioning in Antarctic Fur Seals, Arctocephalus gazella by Jones, Kayleigh A.; Ratcliffe, Norman; Votier, Stephen C.; Newton, Jason; Forcada, Jaume; Dickens, John; Stowasser, Gabriele; Staniland, Iain J. is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Intra-specific Niche Partitioning in Antarctic Fur Seals, Arctocephalus gazella about?
Competition for resources within a population can lead to niche partitioning between sexes, throughout ontogeny and among individuals, allowing con-specifics to co-exist. We aimed to quantify such partitioning in Antarctic fur seals, __Arctocephalus gazella__, breeding at South Georgia, which hosts ~95% of the world’s population. Whiskers were collected from 20 adult males and 20 adult females and stable isotope ratios were quantified every 5 mm along the length of each whisker. Nitrogen isotope ratios (δ^15^N) were used as proxies for trophic position and carbon isotope ratios (δ^13^C) indicated foraging habitat. Sexual segregation was evident: δ^13^C values were significantly lower in males than females, indicating males spent more time foraging south of the Polar Front in maritime Antarctica. In males δ^13^C values declined with age, suggesting males spent more time foraging south throughout ontogeny. In females δ^13^C values revealed two main foraging strategies: 70% of females spent most time foraging south of the Polar Front and had similar δ^15^N values to males, while 30% of females spent most time foraging north of the Polar Front and had significantly higher δ^15^N values
Who reads Intra-specific Niche Partitioning in Antarctic Fur Seals, Arctocephalus gazella?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Jones, Kayleigh A.; Ratcliffe, Norman; Votier, Stephen C.; Newton, Jason; Forcada, Jaume; Dickens, John; Stowasser, Gabriele; Staniland, Iain J.
- Publisher
- Springer Science and Business Media LLC; London: Nature Publishing Group; [London]: Springer Nature; Nature Publishing Group; Society for Mining, Metallurgy and Exploration Inc.; Research Square; Springer Nature; Island Press (ISSN 2045-2322)
- Published
- 2020
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)