@article{fdi:010062333,
  title = {{M}ovement models provide insights into variation in the foraging effort of central place foragers},
  author = {{B}oyd, {C}. and {P}unt, {A}. {E}. and {W}eimerskirch, {H}. and {B}ertrand, {S}ophie},
  editor = {},
  language = {{ENG}},
  abstract = {{E}cology and conservation depend on an understanding of how animals adjust their behaviour patterns in response to changes in their environment. {C}entral place foragers ({CPF}s) are well-suited for developing ecological models of adaptive processes because their objective functions and operational constraints can be reasonably inferred. {C}entral place foraging and provisioning theory provide the theoretical framework for this analysis. {A}nalysis of {CPF} time allocation and energy budgets can provide insights into their strategies for responding to environmental variation. {H}owever, until recently, suitable high-resolution data on the behaviour of seabirds and other {CPF}s at sea have not been available. {P}revious studies of breeding seabirds have investigated variation in foraging trip duration and colony attendance, but few studies have analyzed variation in time allocation within foraging trips. {H}ere, we develop a conceptual energy-based model for analysing variation in the time allocation of {CPF}s during foraging trips, and apply it to the movement patterns of {P}eruvian boobies ({S}ula variegata). {F}oraging trips of {P}eruvian boobies, recorded using high-resolution global positioning systems ({GPS}), were first partitioned into movement modes consistent with travel and foraging behaviours using a hidden {M}arkov model ({HMM}) adapted to account for gaps in the {GPS} tracks associated with diving behaviour. {A}nalysis of the {HMM} results based on the conceptual model indicated that differences in foraging effort between two treatments were best explained by a combination of differences in travel time and in time spent searching for prey. {T}he conceptual model provides the basis for an integrated approach to analysis of variation in foraging strategies in which identification of various behaviours is coupled with assessments of time and energy budgets. {T}his integrated approach can contribute to greater understanding of the processes determining foraging strategies and the limits to these strategies in the context of competition for resources and global climate change.},
  keywords = {{A}nimal movement ; {F}oraging ecology ; {H}idden {M}arkov model ; {S}ula variegata ; {P}rovisioning theory ; {S}eabirds ; {PEROU}},
  booktitle = {},
  journal = {{E}cological {M}odelling},
  volume = {286},
  numero = {},
  pages = {13--25},
  ISSN = {0304-3800},
  year = {2014},
  DOI = {10.1016/j.ecolmodel.2014.03.015},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062333},
}