This one may indeed be a different paper to the head colour preference one as such, but really it is an extension of the head colour preference research as it takes the "genetic incompatibility of different head colours" notion further by postulating that hens deliberately distort the proportions of sexes of their progeny in mixed head colour pairings as a response to stress brought about by being paired to a partner of different head colour as they are claimed to be genetically incompatible. This whole area of research is closely linked and relies heavily on the conclusions drawn in the earlier research.hanabi wrote: ↑15 Jul 2017, 09:06Thanks GouldianGuy. That is certainly an unfortunate development. It is, however, a different study to the research regarding partner selection being influenced by head colour. Were you confusing the two studies when you made your original comment, or is there further evidence of "problematic data" regarding the head colour selection study too? I'm not trying to interrogate you; I simply want to know which manuscripts I can ignore and which I can consider "legit".GouldianGuy wrote: ↑14 Jul 2017, 23:30
Check this out. Is this true?
http://retractionwatch.com/2015/07/23/d ... iterature/
Cheers,
Ross
I have never believed the genetic incompatibility theory in relation to head colours as it has not even slightly borne itself out to be true over a lifetime of Gouldian breeding experience. As I see it, the different head colours are no more or less genetically incompatible than are, for example, purple-breasted and white-breasted Gouldians. The head colours are simply natural colour mutations of the same species.