@article{fdi:010072412,
  title = {{S}ocial segregation of humpback whales in contrasted coastal and oceanic breeding habitats},
  author = {{D}erville, {S}. and {T}orres, {L}. {G}. and {G}arrigue, {C}laire},
  editor = {},
  language = {{ENG}},
  abstract = {{M}aternal habitat preferences of humpback whales ({M}egaptera novaeangliae) are well documented from decades of coastal research but oceanic areas have received less attention. {W}hales breeding in {N}ew {C}aledonia occupy both ecosystems: a coastal reef complex ({S}outh {L}agoon) and oceanic seamounts ({S}outhern {S}eamounts). {G}eneralized additive models were applied to 20 years of boat-based whale observations (n = 1,526) to describe habitat preferences and permissive home range estimations were used to explicitly model spatial segregation in relation to social context. {G}roups with calves (n = 206) preferred shallow coastal waters throughout the season in the {S}outh {L}agoon, whereas no habitat segregation was observed between groups with (n = 74) and without calves (n = 140) in the {S}outhern {S}eamounts. {A}s a result, spatial overlap between groups with and without calves was more common in the {S}outhern {S}eamounts than the {S}outh {L}agoon. {D}espite a lack of social segregation around seamounts, mother-calf pairs were proportionally more frequent in the {S}outhern {S}eamounts (27%) than in the {S}outh {L}agoon (16%). {P}hotographs of the calves' dorsal flanks were analyzed to compare age and ecological markers across sites. {C}alves appeared older in the {S}outhern {S}eamounts than in the {S}outh {L}agoon but no difference in scarring or shark bites was found across sites, suggesting that calves experienced similar lifestyles and may move between offshore and coastal waters during the breeding season. {T}his study highlights the flexible habitat-use patterns of breeding humpback whales and raises new questions about the environmental and social drivers of their presence in offshore breeding grounds.},
  keywords = {breeding ground ; habitat use ; humpback whales ; {P}acific {O}cean ; seamounts ; social interactions ; {PACIFIQUE} ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{J}ournal of {M}ammalogy},
  volume = {99},
  numero = {1},
  pages = {41--54},
  ISSN = {0022-2372},
  year = {2018},
  DOI = {10.1093/jmammal/gyx185},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072412},
}