The mammalian cranium (skull without lower jaw) is representative of mammalian diversity
and is thus of particular interest to mammalian biologists across disciplines. One widely …

Predator effects on prey dynamics are conventionally studied by measuring changes in prey
abundance attributed to consumption by predators. We revisit four classic examples of …

Dietary diversity often varies inversely with prey resource abundance. This pattern, although
typically measured at the population level, is usually assumed to also characterize the …

Polar bears (Ursus maritimus) have experienced substantial changes in the seasonal
availability of sea ice habitat in parts of their range, including the Beaufort, Chukchi, and …

Ecological surprises, substantial and unanticipated changes in the abundance of one or
more species that result from previously unsuspected processes, are a common outcome of …

We compiled findings from 15 years (1998–2012) of southern sea otter (Enhydra lutris
nereis) necropsies, incorporating data from 560 animals. Sensitive diagnostic tests were …

We examined the isotopic composition (δ13C and δ15N) of sea otter (Enhydra lutris) bone
collagen from ten late Holocene (ca. 5200 years BP–AD 1900) archaeological sites in …

The effect of temperature and population density on the growth of Atlantic herring Clupea
harengus was studied using a comparative approach applied to 15 North Atlantic …

ABSTRACT 1 During the past 15–20 years, sea otters Enhydra lutris in the Aleutian Islands,
Alaska, USA, experienced a drastic decrease in population size. It has been hypothesized …

One of the primary mechanisms by which sea ice loss is expected to affect polar bears is via
reduced body condition and growth resulting from reduced access to prey. To date, negative …