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Population Structure Associated With Bioregion And Seasonal Prey Distribution For Indo‐Pacific Bottlenose Dolphins (Tursiops Aduncus) In South Africa, O. Alejandra Vargas‐Fonseca, Paige Yates, Stephan P. Kirkman, Pierre A. Pistorius, Daniel M. Moore, Ada Natoli, Victor Cockcroft, A. Rus Hoelzel
Population Structure Associated With Bioregion And Seasonal Prey Distribution For Indo‐Pacific Bottlenose Dolphins (Tursiops Aduncus) In South Africa, O. Alejandra Vargas‐Fonseca, Paige Yates, Stephan P. Kirkman, Pierre A. Pistorius, Daniel M. Moore, Ada Natoli, Victor Cockcroft, A. Rus Hoelzel
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Many marine species exhibit fine‐scale population structure despite high mobility and a lack of physical barriers to dispersal, but the evolutionary drivers of differentiation in these systems are generally poorly understood. Here we investigate the potential role of habitat transitions and seasonal prey distributions on the evolution of population structure in the Indo‐Pacific bottlenose dolphin, Tursiops aduncus, off South Africa’s coast, using double‐digest Restriction‐site Associated DNA sequencing (ddRADseq). Population structure was identified between the eastern and southern coasts and correlated with the habitat transition between the temperate Agulhas (southern) and subtropical Natal (eastern) Bioregions, suggesting differentiation driven by resource specialisations. …