Effects of clutch sizes and incubation stage on nest desertion in the female Common Eider Somateria mollissima nesting in the high Arctic

摘要: In bird species, one of the trade-offs between reproduction and survival appears in parental decision to desert nest. Nest desertion is modulated by several factors including clutch size. However, incubation stage at which predation occurs also an important factor. this study, we examined whether nest was linked initial size, partial (final size) it happened a capital breeder: female common eider (Somateria mollissima) nesting high Arctic. The study performed Kongsfjorden 2002 on western coast Svalbard Archipelago (78°55′N, 20°07′E). We observed that higher when size small. Also, females deserted their nests more during first third than later. Thus, as proceeded, less likely occur even after egg reduction. Our results pointed out eiders seemed depend date into