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 …

Model organism research is essential to understand disease mechanisms. However,
laboratory-induced genetic models can lack genetic variation and often fail to mimic the …

The isolation of the Southern Ocean after the opening of Drake Passage some 23–25 million
years ago, the formation of the Antarctic Circumpolar Current, the subsequent cooling of the …

Apex predators play pivotal roles in marine ecosystems, mediated principally through diet
and nutrition. Yet, compared with terrestrial animals, the nutritional ecology of marine …

Ground counts during 1959–1968 compared with counts using high resolution (0.6 m2)
satellite imagery during 2008–2012 indicated many fewer Weddell seals (Leptonychotes …

Our understanding of the niche concept will remain limited while the quantity and range of
different food types eaten remain a dominant proxy for niche breadth, as this does not …

Weddell seal Leptonychotes weddellii populations can potentially serve as indicators of
change in Southern Ocean food web structure, but tracking populations at regional to …

Energy is a fundamental currency of life that can be quantified in organisms to understand
how environmental conditions and anthropogenic stressors affect individuals, scaling up to …

Additional and alternative sustainable food resources are needed as the global human
population increases. Marine fishes have long provided essential nutrients, such as omega …

Weddell seals (Leptonychotes weddellii) are important predators in the Antarctic marine
ecosystem, yet little is known about their diet. Previous studies have used scat and stomach …