We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Water conditions influence nestling survival in a Hooded Crow Corvus cornix wetland population.
- Authors
Zduniak, Piotr
- Abstract
This paper examines how flooded river valley conditions affect reproductive success of Hooded Crows Corvus cornix nesting in the biotope considered as primary for this species. The main goals of the present study were to determine the nesting period that most influences the breeding output and to investigate the factors influencing reproductive efficiency of the studied population. Mean survival rate of the whole nesting period (53 days––from egg laying to fledgling) was 0.371 (95% CL: 0.338–0.403), while mean survival for the incubation period (to day 21) was 0.850 (0.827–0.875) and mean survival rate for the nestling period was 0.499 (0.460–0.538). The study has shown that the most critical period in the breeding cycle is the first half of the nestling stage, especially from hatching to day 5. Furthermore, the study demonstrated how water conditions affect reproduction in untypical wetland species. Similarly to many other waterbirds, in the studied population of the Hooded Crow, water level positively influences its reproduction.
- Subjects
CORVUS; BIRD breeding; CROWS; NEST building; HATCHABILITY of eggs; EGG incubation; WETLANDS; ANIMAL young; HOODED crow; ANIMAL behavior
- Publication
Journal of Ornithology, 2010, Vol 151, Issue 1, p45
- ISSN
2193-7192
- Publication type
Article
- DOI
10.1007/s10336-009-0424-0