Determinants of individual foraging specialization in large marine vertebrates, the Antarctic and subantarctic fur seals

L Kernaléguen, JPY Arnould, C Guinet… - Journal of Animal …, 2015 - Wiley Online Library
The degree of individual specialization in resource use differs widely among wild
populations where individuals range from fully generalized to highly specialized. This …

Testing the niche variation hypothesis in pinnipeds

V Franco‐Trecu, S Botta, RC De Lima… - Mammal …, 2022 - Wiley Online Library
Individual trophic specialisation (ITS) has many important consequences for ecological and
evolutionary processes. An old hypothesis highlighting the relevance of ITS is the niche …

With the noose around the neck: Marine debris entangling otariid species

V Franco-Trecu, M Drago, H Katz, E Machín… - Environmental …, 2017 - Elsevier
Plastic debris in marine environments and its impact on wildlife species is becoming a
problem of increasing concern. In pinnipeds, entanglements commonly consist of loops …

Pelagic and benthic ecosystems drive differences in population and individual specializations in marine predators

S Riverón, V Raoult, AMM Baylis, KA Jones, DJ Slip… - Oecologia, 2021 - Springer
Individual specialization, which describes whether populations are comprised of dietary
generalists or specialists, has profound ecological and evolutionary implications. However …

From video recordings to whisker stable isotopes: a critical evaluation of timescale in assessing individual foraging specialisation in Australian fur seals

L Kernaléguen, N Dorville, D Ierodiaconou, AJ Hoskins… - Oecologia, 2016 - Springer
Estimating the degree of individual specialisation is likely to be sensitive to the methods
used, as they record individuals' resource use over different time-periods. We combined …

Isotope-based inferences of skipjack tuna feeding ecology and movement in the southwestern Atlantic Ocean

JL Coletto, S Botta, LG Fischer, SD Newsome… - Marine Environmental …, 2021 - Elsevier
Skipjack tuna (Katsuwonus pelamis) sustain a large-scale fishery in the southwest Atlantic
Ocean (SWA), but information about its foraging ecology in this region is still limited. Here …

Unveiling mercury levels: Trophic habits influence on bioaccumulation in two Otariid species

A Roselli-Laclau, J García-Alonso… - Environmental …, 2024 - Elsevier
Mercury, a toxic metal released by various human activities, exerts environmental stress
through its bioaccumulation and biomagnification, particularly in marine habitats. South …

Ontogenetic dietary changes in male South American fur seals Arctocephalus australis in Patagonia

DG Vales, L Cardona, NA García, L Zenteno… - Marine Ecology …, 2015 - int-res.com
This study assessed ontogenetic dietary changes in male South American fur seals
Arctocephalus australis in northern and central Patagonia (Argentina) using stable isotope …

Sexual niche segregation and gender-specific individual specialisation in a highly dimorphic marine mammal

L Kernaleguen, Y Cherel, TC Knox, AMM Baylis… - PLoS …, 2015 - journals.plos.org
While sexual segregation is expected in highly dimorphic species, the local environment is a
major factor driving the degree of resource partitioning within a population. Sexual and …

Individual foraging specialization and sexual niche segregation in South American fur seals

RC de Lima, V Franco-Trecu, DG Vales, P Inchausti… - Marine Biology, 2019 - Springer
Individual variation in habitat and resource use has been reported for many top predators.
This variation becomes important when comparing individuals taking into account sex, size …