Offspring sex ratios and breeding success of a population of the Great Tit,Parus major

摘要: Abstract The offspring sex ratios and breeding success in a population of the Great Tit, Parus major, Antalya, southern Turkey, were determined. Feathers collected from nestlings, un-hatched eggs dead was identified through CHD genes by amplifying P8 P2 primers. primary ratio (at conception) 54% male 46% female, secondary hatchling) 52% 48% tertiary fledging) 53% 47% female. predominance males statistically not significant (p>0.05) all three phases. Hatchling found to be 87.3% 100% females; fledging 96.1% 91.6% females, general 85% 93% females. mean number fledglings per pair significantly higher first broods (p<0.05). Approximately same females (0.53/0.47) fledged, thus resulting balanced that may imply stable str...