Akademik Veri Yönetim Sistemi
ZOOLOGY IN THE MIDDLE EAST, cilt.57, sa.1, ss.27-34, 2012 (SCI-Expanded, Scopus)
The offspring sex ratios and breeding success in a population of the Great Tit, Parus major, in Antalya, southern Turkey, were determined. Feathers were collected from nestlings, unhatched eggs and dead nestlings, and the sex was identified through CHD genes by amplifying P8 and P2 primers. The primary sex ratio (at conception) was 54% male and 46% female, the secondary sex ratio (at hatchling) was 52% male and 48% female, and the tertiary sex ratio (at fledging) was 53% male and 47% female. The predominance of males was statistically not significant (p>0.05) in all three phases. Hatchling success was found to be 87.3% in males and 100% in females; fledging success 96.1% in males and 91.6% in females, and general breeding success 85% in males and 93% in females. The mean number of fledglings per pair was significantly higher in first broods (p<0.05). Approximately the same number of males and females (0.53/0.47) fledged, thus resulting in a balanced sex ratio that may imply stable population structures.