@article{fdi:010073124,
  title = {{L}ong-term changes in the breeding seasonality of {P}eruvian seabirds and regime shifts in the {N}orthern {H}umboldt {C}urrent {S}ystem},
  author = {{P}assuni, {G}. and {B}arbraud, {C}. and {C}haigneau, {A}lexis and {B}ertrand, {A}rnaud and {O}liveros-{R}amos, {R}. and {L}edesma, {J}. and {C}astillo, {R}. and {B}ouchon, {M}. and {B}ertrand, {S}ophie},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the highly productive {N}orthern {H}umboldt {C}urrent {S}ystem, 3 seabird species, the {G}uanay cormorant {P}halacrocorax bougainvillii, the {P}eruvian booby {S}ula variegata and the {P}eruvian pelican {P}elecanus thagus, commence breeding in austral spring, coinciding with the lowest availability of their prey, the {P}eruvian anchovy {E}ngraulis ringens. {T}his strategy ensures the matching of increased prey availability when young achieve independence in summer. {T}his pattern was observed during the last decade when anchovy was abundant. {H}owever, over the last century, the abundance of anchovy has varied widely due to contrasting interdecadal regimes in oceanographic conditions and fishing activity. {W}e hypothesized that these regime shifts affected the abundance and availability of prey and may have conditioned the breeding seasonality of seabirds. {W}e examined the timing and magnitude of the onset of breeding using dynamic occupancy models and related these parameters to the seasonality of oceanographic conditions, abundance of anchovy and fishing pressure. {D}uring a regime of lower anchovy abundance (1977-1990), cormorants showed the highest flexibility, adjusting the timing of breeding from spring to winter and skipping reproduction in the worst conditions. {B}oobies showed the lowest flexibility, maintaining the same magnitude and timing of onset of breeding in spring. {P}elicans showed intermediate flexibility, foregoing breeding during the worst conditions, but maintaining the onset of breeding in spring. {T}he 3 species used sea surface temperature as a cue for the initiation of breeding. {F}urthermore, given their better diving abilities, cormorants could monitor prey availability changes associated with the reversion in the seasonality of the oxycline depth.},
  keywords = {{O}nset of breeding ; {E}nvironmental cues ; {O}xycline depth ; {NHCS} ; {N}orthern {H}umboldt {C}urrent {S}ystem ; {P}halacrocorax bougainvillii ; {S}ula variegata ; {P}elecanus thagus ; {PACIFIQUE} ; {PEROU} ; {HUMBOLDT} {COURANT}},
  booktitle = {},
  journal = {{M}arine {E}cology {P}rogress {S}eries},
  volume = {597},
  numero = {},
  pages = {231--242},
  ISSN = {0171-8630},
  year = {2018},
  DOI = {10.3354/meps12590},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073124},
}