| | IngentaConnect Old female reed buntings (Emberiza schoeniclus) increase extra-pa... (Site not responding. Last check: 2007-10-23) |
 | | However, the occurrence of EPP is likely to be a result of behavioural interactions (e.g., mate guarding by the social male and escaping mate guarding by the female), and may be related to individual experience, which is expected to increase with age. |
 | | We investigated the effect of age on levels of EPP in reed buntings Emberiza schoeniclus, a socially monogamous passerine with extremely high levels of extra-pair young (more than 50% of offspring). |
 | | We suggest that with increase in age, females become more choosy when selecting the male that sires their offspring, or alternatively, become more experienced at circumventing paternity assurance tactics of young males. |
| www.ingentaconnect.com /content/brill/beh/2005/00000142/F0020011/art00002 (350 words) |