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Quantitative fatty acid signature analysis: A new method of estimating predator diets
(2004-05)
Accurate estimates of the diets of predators are required in many areas of ecology, but for many
species current methods are imprecise, limited to the last meal, and often biased. The diversity of
fatty acids and their ...
The Influence of Reproductive Experience on Milk Energy Output and Lactation Performance in the Grey Seal (Halichoerus grypus)
(2011-05)
Although evidence from domestic and laboratory species suggests that reproductive experience
plays a critical role in the development of aspects of lactation performance, whether reproductive
experience may have a significant ...
Sex-specific, seasonal foraging tactics of adult grey seals (Halichoerus grypus) revealed by state-space analysis
(2009-11)
In many large pelagic animals, observing behavior is limited to observation by radio or satellite telemetry. In many cases, discriminating different behaviors from telemetry data has been a key, but often elusive, goal. ...
Seasonal changes in buoyancy and diving behaviour of adult grey seals
(2000-08)
Phocid seals go through dramatic seasonal changes in body mass and composition as a result of
the spatial and temporal separation of foraging, reproduction and moulting. These changes in body
fat content and body mass ...
Primiparous and multiparous females differ in mammary gland alveolar development: implications for milk production
(2012-08)
Mammary gland capacity is influenced by the number of secretory cells in the gland, the activity
of those cells and the size and arrangement of the alveoli that they form. Although reproductive
experience has been shown ...
Linking movement, diving, and habitat to foraging success in a large marine predator
(2006-12)
Establishing where and when predators forage is essential to understanding trophic interactions,
yet foraging behavior remains poorly understood in large marine carnivores. We investigated the
factors leading to foraging ...
Jellyfish Support High Energy Intake of Leatherback Sea Turtles (Dermochelys coriacea): Video Evidence from Animal-Borne Cameras
(2012-03)
The endangered leatherback turtle is a large, highly migratory marine predator that inexplicably
relies upon a diet of low-energy gelatinous zooplankton. The location of these prey may be
predictable at large oceanographic ...
Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus)
(2008-05)
Gray seals (Halichoerus grypus) undergo a terrestrial postweaning fast (PWF) that depletes
energy reserves acquired during the suckling interval. Plasticity in PWF duration may ensure that
pups of variable body condition ...
Animal-Borne Acoustic Transceivers Reveal Patterns of at-Sea Associations in an Upper-Trophic Level Predator
(2012-11)
Satellite telemetry data have substantially increased our understanding of habitat use and
foraging behaviour of upper-trophic marine predators, but fall short of providing an understanding
of their social behaviour. We ...