@article{fdi:010072806, title = {{A}pplication of a multi-disciplinary approach to reveal population structure and {S}outhern {O}cean feeding grounds of humpback whales}, author = {{R}iekkola, {L}. and {Z}erbini, {A}. {N}. and {A}ndrews, {O}. and {A}ndrews-{G}off, {V}. and {B}aker, {C}. {S}. and {C}handler, {D}. and {C}hilderhouse, {S}. and {C}lapham, {P}. and {D}odemont, {R}. and {D}onnelly, {D}. and {F}riedlaender, {A}. and {G}allego, {R}. and {G}arrigue, {C}laire and {I}vashchenko, {Y}. and {J}arman, {S}. and {L}indsay, {R}. and {P}allin, {L}. and {R}obbins, {J}. and {S}teel, {D}. and {T}remlett, {J}. and {V}indenes, {S}. and {C}onstantine, {R}.}, editor = {}, language = {{ENG}}, abstract = {{O}btaining direct measurements to characterise ecosystem function can be hindered by remote or inaccessible regions. {N}ext-generation satellite tags that inform increasingly sophisticated movement models, and the miniaturisation of animal-borne loggers, have enabled the use of animals as tools to collect habitat data in remote environments, such as the {S}outhern {O}cean. {R}esearch on the distribution, habitat use and recovery of {O}ceania's humpback whales ({M}egaptera novaeangliae) has been constrained by the inaccessibility to their {A}ntarctic feeding grounds and the limitations of technology. {I}n this multi-disciplinary study, we combine innovative analytical tools to comprehensively assess the distribution and population structure of this marine predator throughout their entire migratory range. {W}e used genotype and photo-identification matches and conducted a genetic mixed-stock analysis to identify the breeding ground origins of humpback whales migrating past the {K}ermadec {I}slands, {N}ew {Z}ealand. {S}atellite tracking data and a state-space model were then used to identify the migratory paths and behaviour of 18 whales, and to reveal their {A}ntarctic feeding ground destinations. {A}dditionally, we conducted progesterone assays and epigenetic aging to determine the pregnancy rate and age-profile of the population. {H}umpback whales passing the {K}ermadec {I}slands did not assign to a single breeding ground origin, but instead came from a range of breeding grounds spanning similar to 3500 km of ocean. {S}ampled whales ranged from calves to adults of up to 67 years of age, and a pregnancy rate of 57% was estimated from 30 adult females. {T}he whales migrated to the {S}outhern {O}cean (straight-line distances of up to 7000 km) and spanned similar to 4500 km across their {A}ntarctic feeding grounds. {A}ll fully tracked females with a dependent calf (n = 4) migrated to the {R}oss {S}ea region, while 70% of adults without calves (n = 7) travelled further east to the {A}mundsen and {B}ellingshausen {S}eas region. {B}y combining multiple research and analytical tools we obtained a comprehensive understanding of this wide-ranging, remote population of whales. {O}ur results indicate a population recovering from exploitation,and their feeding ground distribution serves as an indicator of the resources available in these environments. {T}he unexpected {K}ermadec {I}slands migratory bottle-neck of whales from several breeding grounds, variable distribution patterns by life history stage and high pregnancy rates will be important in informing conservation and management planning, and for understanding how this, as well as other whale populations, might respond to emerging threats such as climate change.}, keywords = {{S}atellite telemetry ; {E}pigenetic aging ; {P}rogesterone ; {S}patial ecology ; {M}ulti-disciplinary ; {H}umpback whale ; {OCEAN} {AUSTRAL} ; {ANTARCTIQUE} ; {NOUVELLE} {ZELANDE}}, booktitle = {}, journal = {{E}cological {I}ndicators}, volume = {89}, numero = {}, pages = {455--465}, ISSN = {1470-160{X}}, year = {2018}, DOI = {10.1016/j.ecolind.2018.02.030}, URL = {https://www.documentation.ird.fr/hor/fdi:010072806}, }