A theoretically valid proxy of energy expenditure is the acceleration of an animal's mass due
to the movement of its body parts. Acceleration can be measured by an accelerometer and …

Evidence‐based assessments are increasingly recognized as the best‐practice approach to
determine appropriate conservation interventions, but such assessments of the impact of …

Summary 1 Time and energy are key currencies in animal ecology, and judicious
management of these is a primary focus for natural selection. At present, however, there are …

An animal's behaviour is a response to its environment and physiological condition, and as
such, gives vital clues as to its well-being, which is highly relevant in conservation issues …

The advantages of transmission telemetry or logging systems for studying free-living animals
are multiple and have driven designs for many and varied devices, each with its own …

How do seabirds deal with intra-specific competition for food? We addressed this question in
a study of the foraging behaviour of 91 Cape gannets Morus capensis from 2 South African …

Animal movement, as measured by the overall dynamic body acceleration (ODBA), has
recently been shown to correlate well with energy expenditure. However, accelerometers …

In a patchy environment, predators are expected to increase turning rate and start an area-
restricted search (ARS) when prey have been encountered, but few empirical data exist for …

Ecosystem dynamics at the northwest Antarctic Peninsula are driven by interactions
between physical and biological processes. For example, baleen whale populations are …

Measurement of the time allocation of penguins at sea has been a major goal of researchers
in recent years. Until now, however, no equipment has been available that would allow …