Temperature and timing of egg-laying of European starlings
Article Abstract:
The relation between spring weather and timing of breeding in both a free-living and captive breeding populations of European starlings (Sturnus vulgaris) has been investigated. The short-term effect of temperature on timing in egg-laying in captive birds was also evaluated. The results showed that the sensitivity of the reproductive system of starlings to spring temperatures is an adaptive response because the periods of egglaying and raising the young were timed with periods of high food availability.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Food availability and egg-laying of captive European starlings
Article Abstract:
Egg-laying in captive European starlings is studied. The process is timed more accurately after photoperiodic changes set the onset and end of the breeding season of the starling, the existing food situation, and possibly temperature. Social simulation of the colony members clearly acts as a final fine tuning. The quantity of eggs does not show reduced food availability and the female may make up for loss by reducing body mass and activity and by redigesting feces.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Homing experiments with starlings deprived of the sense of smell
Article Abstract:
A study of the homing patterns of 340 full-grown European Starlings revealed the species' requirement of olfactory signal-perception for home-orientation over long distances. Of the sample, half of which were made anosmic and the balance sham-operated to act as controls, the control birds' rate of homing was substantially higher than that of the anosmic birds, which failed to negotiate distances over 60 km as a consequence of altered olfactory nerve sections.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Comparing evolvability and variability of quantitative traits
- Abstracts: Preparation, characterization, and optimization of an in vitro C30 carotenoid pathway. Optimization of procedures for counting viruses by flow cytometry
- Abstracts: Energetics of nose and mouth breathing, body size, body composition, and nose volume in young adult males and females
- Abstracts: The colonization history and present-day population structure of the European great tit (Parus major major). Parasitism and the retrotransposon life cycle in plants: A hitchhiker's guide to the genome
- Abstracts: Organization of the canine major histocompatibility complex: current perspectives. Hereditary evaluation of multiple developmental abnormalities in the Havanese dog breed