Naslov
Egg dimensions variation in relation to the laying order in Black Redstart (Phoenicurus ochruros Gmelin, 1774) in NW Croatia

Autori
Dolenec, Zdravko

Izvornik
Belgian Journal of Zoology (0777-6276) 136 (2006), 2; 257-258

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Black Redstart; Phoenicurus ochruros; egg dimensions; laying order

Sažetak
Egg size dimensions are generally held to be inportant indices of egg quality and correlate with chick survival in numeorus bird species. Research took place in Hrvatsko Zagorje region in NW Croatia, in 2002 and 2004. Both in 2002 and 2004 egg volume sequences were significantly concordant (Kendall`s coefficient of concordance: 2002, W = 0.326 ; X2 = 14.427 ; df = 4 ; p = 0.006 ; 2004, W = 0.282 ; x2 = 15.771 ; df = 4 ; p = 0.003) and correlation between egg volume and laying order were statistically significant (Pearson: 2002, r = 0.341 ; p = 0.011 ; 2004, r = 0.338 ; p = 0.004). For clutches with 5 eggs values of %D in 2002 and 2004 was 5, 63 and 6.12 resp.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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