@article{fdi:010075599,
  title = {{T}rophic ecology of {S}copoli's shearwaters during breeding in the {Z}embra {A}rchipelago (northern {T}unisia)},
  author = {{T}habet, {I}. and {B}ourgeois, {K}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {A}bdennadher, {A}. and {M}unaron, {J}ean-{M}arie and {G}harsalli, {M}. and {R}omdhane, {M}. {S}. and {L}asram, {F}. {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}hile breeding, seabirds are central-place foragers requiring resources to sustain high-energy requirements. {T}herefore, during this period, they are particularly sensitive to food-resource availability, which can vary within and between years. {I}ntra- and inter-annual variations in {S}copoli's shearwater ({C}alonectris diomedea) trophic ecology were investigated at its largest colony ({Z}embra {I}sland, 37 degrees 07'33 ' {N}, 10 degrees 48'23 ' {E}, {M}editerranean {S}ea). {C}arbon and nitrogen isotope values were analysed in the blood (adults and chicks) and feathers (adult wing) during pre-laying, incubation, and chick-rearing in 2015 and 2016 to assess variations in stable isotope composition, isotopic niches, trophic levels, and diet inferred from isotope mixing models. {S}copoli's shearwaters showed variations in isotopes throughout the breeding season and among years, with incubation showing the highest delta {C}-13 and delta {N}-15 values, trophic levels, inter-annual isotopic niche consistency, and the most specific and narrowest isotopic niche. {T}he difference in blood delta {C}-13 values between adults and chicks suggested trophic habitat segregation: adults feed inshore, while chicks are fed more oceanic prey. {S}table-isotope mixing models based on three potential prey groups revealed that the diet could consist mainly of pelagic fish and crustaceans throughout the breeding season, whereas non-pelagic fish and cephalopods could be consumed more sporadically, mainly during incubation. {F}eather delta {N}-15 values suggested that the adult diets contained more zooplankton in 2014. {T}hese results demonstrated the {S}copoli's shearwater trophic ecology plasticity in response to the variable nutritional demands of breeding phases and changes in prey availability. {S}copoli's shearwaters may, thus, be valuable bio-indicators of small pelagic fish populations considered critically depleted in the {M}editerranean.},
  keywords = {{TUNISIE} ; {MEDITERRANEE} ; {TUNIS} {GOLFE} ; {ZEMBRA} {ARCHIPEL}},
  booktitle = {},
  journal = {{M}arine {B}iology},
  volume = {166},
  numero = {5},
  pages = {art. 61 [16 p.]},
  ISSN = {0025-3162},
  year = {2019},
  DOI = {10.1007/s00227-019-3509-1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075599},
}