The decline of Steller sea lions Eumetopias jubatus in the Gulf of Alaska and Aleutian
Islands between the late 1970s and 1990s may have been related to reduced availability of …

Within populations, individuals often show repeatable variation in behaviour, called 'animal
personality'. In the last few decades, numerous empirical studies have attempted to …

Knowledge of relationships between prey availability and predator performance is the key to
using predators as indicators of the state of marine systems and to assessing potential …

1. Foraging behaviour of Antarctic fur seals rearing pups at Bird Island, South Georgia, was
assessed using at-sea activity patterns measured by electronic time-depth recorders …

Summary 1 Management decisions for threatened and endangered species require risks to
be identified and prioritized, based on the degree to which they influence population …

Within individual iteroparous mammals, a high rate of reproduction in early life may occur at
the cost of decreased reproduction near the end of life, leading to reproductive senescence …

Mountain goats have been among the least studied of North American ungulates, leaving
wildlife managers with little information on which to base harvest strategies or conservation …

In mammals, reproductive success may be positively correlated with both maternal age and
social rank. Because social rank often increases with age, however, the effects of rank and …

1. The reproductive performance of individually marked mothers aged between 4 and 36
years breeding at the established grey seal colony of North Rona, Scotland was studied …

Pup mortality and the timing of birth of South American sea lions Otaria flavescens were
investigated to determine the possible relationship between fluctuations in prey availability …