Data from: Mating success and body condition not related to foraging specializations in male fur seals
Individual specialization is widespread among wild populations. While its fitness consequences are central in predicting the ecological and evolutionary trajectories of populations, they remain poorly understood. Long-term individual foraging specializations occur in male Antarctic (Arctocephalus ga...
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ftzenodo:oai:zenodo.org:4946169 2023-06-06T11:46:30+02:00 Data from: Mating success and body condition not related to foraging specializations in male fur seals Kernaléguen, Laëtitia Cherel, Yves Guinet, Christophe Arnould, John 2016-06-07 https://zenodo.org/record/4946169 https://doi.org/10.5061/dryad.792gj unknown doi:10.1098/rsos.160143 https://zenodo.org/communities/dryad https://zenodo.org/record/4946169 https://doi.org/10.5061/dryad.792gj oai:zenodo.org:4946169 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Fitness Payoff reproductive success Arctocephalus pusillus doriferus Arctocephalus Arctocephalus gazella Territorial Males info:eu-repo/semantics/other dataset 2016 ftzenodo https://doi.org/10.5061/dryad.792gj10.1098/rsos.160143 2023-04-13T21:21:48Z Individual specialization is widespread among wild populations. While its fitness consequences are central in predicting the ecological and evolutionary trajectories of populations, they remain poorly understood. Long-term individual foraging specializations occur in male Antarctic (Arctocephalus gazella) and Australian (A. pusillus doriferus) fur seals. Strong selective pressure is expected in these highly dimorphic and polygynous species, raising the question of the fitness payoffs associated with different foraging strategies. We investigated the relationship between individual isotopic niche (a proxy of foraging specialization), body size and condition, and an index of reproductive success (harem size) in territorial males. Individuals varied greatly in their skin and fur isotopic values reflecting a range of foraging strategies within the two populations. However, in both species, isotopic niche was not correlated to body size, condition or mating success (R2/ρ < 0.06). Furthermore, no foraging niche was predominant in either species, which would have indicated a substantial long-term fitness benefit of a particular strategy via a higher survival rate. These results suggest that the fitness consequences of a foraging strategy depend not only on the quality of prey and feeding habitat but also on an individual's hunting efficiency and skills. Kernaléguen et al. 2016 DATAData from Mating success and body condition not related to foraging specialisations in male fur seals, L. Kernaléguen, Y. Cherel, C. Guinet and J. P. Y. Arnould Dataset Antarc* Antarctic Arctocephalus gazella Zenodo Antarctic |
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Fitness Payoff reproductive success Arctocephalus pusillus doriferus Arctocephalus Arctocephalus gazella Territorial Males |
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Fitness Payoff reproductive success Arctocephalus pusillus doriferus Arctocephalus Arctocephalus gazella Territorial Males Kernaléguen, Laëtitia Cherel, Yves Guinet, Christophe Arnould, John Data from: Mating success and body condition not related to foraging specializations in male fur seals |
topic_facet |
Fitness Payoff reproductive success Arctocephalus pusillus doriferus Arctocephalus Arctocephalus gazella Territorial Males |
description |
Individual specialization is widespread among wild populations. While its fitness consequences are central in predicting the ecological and evolutionary trajectories of populations, they remain poorly understood. Long-term individual foraging specializations occur in male Antarctic (Arctocephalus gazella) and Australian (A. pusillus doriferus) fur seals. Strong selective pressure is expected in these highly dimorphic and polygynous species, raising the question of the fitness payoffs associated with different foraging strategies. We investigated the relationship between individual isotopic niche (a proxy of foraging specialization), body size and condition, and an index of reproductive success (harem size) in territorial males. Individuals varied greatly in their skin and fur isotopic values reflecting a range of foraging strategies within the two populations. However, in both species, isotopic niche was not correlated to body size, condition or mating success (R2/ρ < 0.06). Furthermore, no foraging niche was predominant in either species, which would have indicated a substantial long-term fitness benefit of a particular strategy via a higher survival rate. These results suggest that the fitness consequences of a foraging strategy depend not only on the quality of prey and feeding habitat but also on an individual's hunting efficiency and skills. Kernaléguen et al. 2016 DATAData from Mating success and body condition not related to foraging specialisations in male fur seals, L. Kernaléguen, Y. Cherel, C. Guinet and J. P. Y. Arnould |
format |
Dataset |
author |
Kernaléguen, Laëtitia Cherel, Yves Guinet, Christophe Arnould, John |
author_facet |
Kernaléguen, Laëtitia Cherel, Yves Guinet, Christophe Arnould, John |
author_sort |
Kernaléguen, Laëtitia |
title |
Data from: Mating success and body condition not related to foraging specializations in male fur seals |
title_short |
Data from: Mating success and body condition not related to foraging specializations in male fur seals |
title_full |
Data from: Mating success and body condition not related to foraging specializations in male fur seals |
title_fullStr |
Data from: Mating success and body condition not related to foraging specializations in male fur seals |
title_full_unstemmed |
Data from: Mating success and body condition not related to foraging specializations in male fur seals |
title_sort |
data from: mating success and body condition not related to foraging specializations in male fur seals |
publishDate |
2016 |
url |
https://zenodo.org/record/4946169 https://doi.org/10.5061/dryad.792gj |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Arctocephalus gazella |
genre_facet |
Antarc* Antarctic Arctocephalus gazella |
op_relation |
doi:10.1098/rsos.160143 https://zenodo.org/communities/dryad https://zenodo.org/record/4946169 https://doi.org/10.5061/dryad.792gj oai:zenodo.org:4946169 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.792gj10.1098/rsos.160143 |
_version_ |
1767951848507965440 |