Sandra V. Valderrama, Laura E. Molles, Joseph R. Waas and Hans Slabbekoorn Conservation implications of song divergence between source and translocated populations of the North Island Kōkako Journal of Applied Ecology 50
Vocal divergence and reduced variability in translocated populations suggest founder effects or reduced social interaction rates. The variation could be viewed as cultural erosion and may undermine translocation success. Persistence of response to playback, despite vocal divergence, suggested that social restrictions on gene flow require at least a few decades of separation after translocation. The decision to translocate individuals of threatened species is becoming a more common tool for species conservation world-wide. We argue that it is important to take vocal variation into account during such management decisions as it may affect success of establishment and persistence of translocated populations.
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