Woolly mammoth (Mammuthus primigenius), horse (Equus spp.) and bison (Bison spp.)
coexisted with a variety of mammalian megafauna across the Pleistocene mammoth steppe …

Consumer tissue stable carbon isotope compositions (δ 13 C) are well established
indicators of benthic and pelagic foraging in marine ecosystems. Stable sulfur isotope …

Individual specialization, which describes whether populations are comprised of dietary
generalists or specialists, has profound ecological and evolutionary implications. However …

Body size and feeding morphology influence how animals partition themselves within
communities. We tested the relationships among sex, body size, skull morphology and …

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 …

Understanding the trophic niches of marine apex predators is necessary to understand
interactions between species and to achieve sustainable, ecosystem-based fisheries …

As marine ecosystems are harvested or modified by anthropogenic or natural factors, there
is an increasing demand for indicators of trophic web health or status. The Magellanic …

Sharks are essential components of marine communities, and their removal might simplify
ecosystems and lead to unpredictable and detrimental effects on the food web. Comparing …

Hutchison's niche theory suggests that coexisting competing species occupy non-
overlapping hypervolumes, which are theoretical spaces encompassing more than three …

Detailed knowledge on habitat use by marine mammals is critical for understanding their
ecological role and for adequate management. Here, we assess the habitat use patterns of …