Data from: Multilevel selection with kin and non-kin groups, experimental results with Japanese quail (Coturnix japonica)
Muir, William M., Purdue University
Bijma, Piter, Wageningen University & Research
Schinckel, Allan, Purdue University
Muir, William. M., Purdue University
Published Jan 17, 2013 on Dryad.
Cite this dataset
Muir, William M.; Bijma, Piter; Schinckel, Allan; Muir, William. M. (2013). Data from: Multilevel selection with kin and non-kin groups, experimental results with Japanese quail (Coturnix japonica) [Dataset]. Dryad. https://doi.org/10.5061/dryad.1012q
An experiment was conducted comparing multilevel selection in Japanese quail for 43 days weight and survival with birds housed in either kin (K) or random (R) groups. Multilevel selection significantly reduced mortality (6.6% K vs. 8.5% R) and increased weight (1.30 g/MG K vs. 0.13 g/MG R) resulting in response an order of magnitude greater with Kin than Random. Thus multilevel selection was effective in reducing detrimental social interactions, which contributed to improved weight gain. The observed rates of response did not differ significantly from expected, demonstrating that current theory is adequate to explain multilevel selection response. Based on estimated genetic parameters, group selection would always be superior to any other combination of multilevel selection. Further, near optimal results could be attained using multilevel selection if 20% of the weight was on the group component regardless of group composition. Thus in nature the conditions for multilevel selection to be effective in bringing about social change maybe common. In terms of a sustainability of breeding programs, multilevel selection is easy to implement and is expected to give near optimal responses with reduced rates of inbreeding as compared to group selection, the only requirement is that animals be housed in kin groups.
Kin selection data
Raw data weight by hatch and minigeneration and method of selection
kin vs random group
means used to generate graphs of selection response
Kin selection response_figure groups size 16 current
Excel program to find expected responses to individual and kin selection