@article{fdi:010090709, title = {{B}ehavioural heterogeneity across killer whale social units in their response to feeding opportunities from fisheries}, author = {{A}uguin, {E}rwan and {G}uinet, {C}. and {M}ourier, {J}. and {C}lua, {E}. and {G}asco, {N}. and {T}ixier, {P}aul}, editor = {}, language = {{ENG}}, abstract = {{I}ntra-population heterogeneity in the behavioural response of predators to changes in prey availability caused by human activities can have major evolutionary implications. {A}mong these activities, fisheries, while extracting resources, also provide new feeding opportunities for marine top predators. {H}owever, heterogeneity in the extent to which individuals have responded to these opportunities within populations is poorly understood. {H}ere, we used 18 years of photo-identification data paired with statistical models to assess variation in the way killer whale social units within a subantarctic population ({C}rozet {I}slands) interact with fisheries to feed on fish caught on fishing gear (i.e., depredation behaviour). {O}ur results indicate large heterogeneity in both the spatial and temporal extents of depredation across social units. {W}hile some frequently depredated on fishery catches over large areas, others sporadically did so and in small areas consistently over the years. {T}hese findings suggest that killer whale social units are exposed to varying levels of impacts of depredation, both negative (potential retaliation from fishers) and positive (food provisioning), on their life history traits, and may explain the contrasted demographic patterns observed within the declining population at {C}rozet but also potentially within the many other killer whale populations documented depredating on fisheries catches worldwide.}, keywords = {depredation ; human-wildlife conflicts ; intra-population variation ; marine top predator ; {O}rcinus orca ; social network}, booktitle = {}, journal = {{E}cology and {E}volution}, volume = {14}, numero = {5}, pages = {e11448 [14 ]}, ISSN = {2045-7758}, year = {2024}, DOI = {10.1002/ece3.11448}, URL = {https://www.documentation.ird.fr/hor/fdi:010090709}, }