@article{fdi:010063662,
  title = {{D}rivers of time-activity budget variability during breeding in a pelagic seabird},
  author = {{R}ishworth, {G}. {M}. and {T}remblay, {Y}ann and {G}reen, {D}. {B}. and {C}onnan, {M}. and {P}istorius, {P}. {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}uring breeding, animal behaviour is particularly sensitive to environmental and food resource availability. {A}dditionally, factors such as sex, body condition, and offspring developmental stage can influence behaviour. {A}mongst seabirds, behaviour is generally predictably affected by local foraging conditions and has therefore been suggested as a potentially useful proxy to indicate prey state. {H}owever, besides prey availability and distribution, a range of other variables also influence seabird behavior, and these need to be accounted for to increase the signal-to-noise ratio when assessing specific characteristics of the environment based on behavioural attributes. {T}he aim of this study was to use continuous, fine-scale time-activity budget data from a pelagic seabird ({C}ape gannet, {M}orus capensis) to determine the influence of intrinsic (sex and body condition) and extrinsic (offspring and time) variables on parent behaviour during breeding. {F}oraging trip duration and chick provisioning rates were clearly sex-specific and associated with chick developmental stage. {F}emales made fewer, longer foraging trips and spent less time at the nest during chick provisioning. {T}hese sex-specific differences became increasingly apparent with chick development. {A}dditionally, parents in better body condition spent longer periods at their nests and those which returned later in the day had longer overall nest attendance bouts. {U}sing recent technological advances, this study provides new insights into the foraging behaviour of breeding seabirds, particularly during the post-guarding phase. {T}he biparental strategy of chick provisioning revealed in this study appears to be an example where the costs of egg development to the female are balanced by paternal-dominated chick provisioning particularly as the chick nears fledging.},
  keywords = {{AFRIQUE} {DU} {SUD}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {9},
  numero = {12},
  pages = {e116544 [17 ]},
  ISSN = {1932-6203},
  year = {2014},
  DOI = {10.1371/journal.pone.0116544},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063662},
}