Resolving temporal variation in vertebrate diets using naturally occurring stable isotopes

F Dalerum, A Angerbjörn - Oecologia, 2005 - Springer
Assessments of temporal variation in diets are important for our understanding of the
ecology of many vertebrates. Ratios of naturally occurring stable isotopes in animal tissues …

Trophic interactions within the Ross Sea continental shelf ecosystem

WO Smith Jr, DG Ainley… - … Transactions of the …, 2007 - royalsocietypublishing.org
The continental shelf of the Ross Sea is one of the Antarctic's most intensively studied
regions. We review the available data on the region's physical characteristics (currents and …

Adélie penguin population diet monitoring by analysis of food DNA in scats

SN Jarman, JC McInnes, C Faux, AM Polanowski… - PLoS …, 2013 - journals.plos.org
The Adélie penguin is the most important animal currently used for ecosystem monitoring in
the Southern Ocean. The diet of this species is generally studied by visual analysis of …

Integrating stomach content and stable isotope analyses to quantify the diets of pygoscelid penguins

MJ Polito, WZ Trivelpiece, NJ Karnovsky, E Ng… - PloS one, 2011 - journals.plos.org
Stomach content analysis (SCA) and more recently stable isotope analysis (SIA) integrated
with isotopic mixing models have become common methods for dietary studies and provide …

Geographic structure of Adelie penguin populations: Overlap in colony‐specific foraging areas

DG Ainley, CA Ribic, G Ballard, S Heath… - Ecological …, 2004 - Wiley Online Library
In an investigation of the factors leading to geographic structuring among Adélie Penguin
(Pygoscelis adeliae) populations, we studied the size and overlap of colony‐specific …

Diet and foraging areas of Southern Ocean seabirds and their prey inferred from stable isotopes: review and case study of Wilson's storm-petrel

P Quillfeldt, RAR McGill, RW Furness - Marine Ecology Progress Series, 2005 - int-res.com
Analysis of stable isotope ratios in animal tissues has emerged as a powerful tool for
determining the trophic level and composition of prey and foraging location. We summarize …

the energetic value of zooplankton and nekton species of the Southern Ocean

FL Schaafsma, Y Cherel, H Flores, JA Van Franeker… - Marine Biology, 2018 - Springer
Understanding the energy flux through food webs is important for estimating the capacity of
marine ecosystems to support stocks of living resources. The energy density of species …

Competition among penguins and cetaceans reveals trophic cascades in the western Ross Sea, Antarctica

DG Ainley, G Ballard, KM Dugger - Ecology, 2006 - Wiley Online Library
An apparent trophic cascade that appears during summer in the western Ross Sea,
Antarctica, explains why the Antarctic silverfish (Pleuragramma antarcticum) there becomes …

Working less to gain more: when breeding quality relates to foraging efficiency

A Lescroël, G Ballard, V Toniolo, KJ Barton… - Ecology, 2010 - Wiley Online Library
In animal populations, a minority of individuals consistently achieves the highest breeding
success and therefore contributes the most recruits to future generations. On average …

The Association of Antarctic Krill Euphausia superba with the Under-Ice Habitat

H Flores, JA Van Franeker, V Siegel, M Haraldsson… - PloS one, 2012 - journals.plos.org
The association of Antarctic krill Euphausia superba with the under-ice habitat was
investigated in the Lazarev Sea (Southern Ocean) during austral summer, autumn and …