Joan Navarro

TL;DR: This research demonstrates that studies with stable isotopes can furnish an alternative and/or complementary method for determining the diet of small pelagic fishes over extended periods and provides comprehensive knowledge of the func-tioning of the pelagic ecosystem.

TL;DR: Although there was a degree of overlap in some measures of foraging behaviour, overall the four taxa operated in very different ecological space despite breeding in close proximity, providing important insight into the mechanisms allowing these very large populations of ecologically-similar predators to coexist.

TL;DR: Simulations confirm that squids are able to benefit from a general increase in fishing pressure, mainly due to predation release, and quickly respond to changes triggered by the environment, and may be very sensitive to the effects of fishing and climate change.

TL;DR: The results reveal sex-related and age-related differences in the consumption of fish discards, small pelagic fish and American crayfish, illustrating the importance of considering the age and sex of individuals to obtain feasible dietary information and to understand how the exploitation of food of human origin could affect population growth.

TL;DR: Although handicapped birds had to increase their foraging effort, they maintained physical condition by reducing parental investment and transferred the experimentally increased costs to their partners and the chick, which supports the fixed investment hypothesis and is consistent with life history theory.