Lipid metabolism, begging behaviour and nestling obesity in a pelagic seabird
نویسندگان
چکیده
منابع مشابه
The energetic cost of begging behaviour in nestling house wrens.
This study presents data relevant to the hypothesis that the energy expenditure associated with begging influences the signalling of need by nestling birds. We used open-circuit respirometry to measure the energy costs of resting, begging and non-begging activities in nestling house wrens, Troglodytes aedon, ranging in age from 1 to 11 days post-hatching. Across all ages, begging caused a 27% i...
متن کاملNestling testosterone is associated with begging behaviour and fledging success in the pied flycatcher, Ficedula hypoleuca.
Animal signals are hypothesized to be costly in order to honestly reflect individual quality. Offspring solicitation signals given by nestling birds are thought to have evolved to advertise either need or individual quality. We tested the potential role of testosterone (T) in controlling the intensity of these signals by measuring begging behaviour as: (i) duration of the begging display and (i...
متن کاملNestling activity levels during begging behaviour predicts activity level and body mass in adulthood
Across a range of species including humans, personality traits, or differences in behaviour between individuals that are consistent over time, have been demonstrated. However, few studies have measured whether these consistent differences are evident in very young animals, and whether they persist over an individual's entire lifespan. Here we investigated the begging behaviour of very young cro...
متن کاملInter-island movements and population differentiation in a pelagic seabird.
We used mark-resight data and amplified fragment length polymorphism (AFLP) markers to assess movements and gene flow between Central Pacific breeding colonies of the great frigatebird, Fregata minor. Of 715 adult frigatebirds marked on Tern Island and Johnston Atoll, 21.3% were resighted at other frigatebird colonies at least 582 km away. Mark-resight data indicated regular movement of males a...
متن کاملPredictive ethoinformatics reveals the complex migratory behaviour of a pelagic seabird, the Manx Shearwater
Understanding the behaviour of animals in the wild is fundamental to conservation efforts. Advances in bio-logging technologies have offered insights into the behaviour of animals during foraging, migration and social interaction. However, broader application of these systems has been limited by device mass, cost and longevity. Here, we use information from multiple logger types to predict indi...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2010
ISSN: 0269-8463,1365-2435
DOI: 10.1111/j.1365-2435.2009.01651.x