Nom du corpus

Corpus Systématique Animale

Titre du document

An experimental study of competition for food between male and female nestlings of the red-winged blackbird

Lien vers le document
Springer (journals)
Langue(s) du document
Type de document
Nom du fichier dans la ressource
  • Kevin L. Teather
  • Department of Zoology, University of Cambridge, Downing Street, CB2 3EJ, Cambridge, UK

Ten experimental broods of red-winged black-bird (Agelaius phoeniceus) nestlings, experimentally manipulated to contain two males and two females of similar age, were observed with the aid of video cameras to determine (a) which nestling characteristics were most important in influencing its chances of being fed and (b) if males and females differed with respect to these characteristics. Nestlings that could reach highest while begging were most successful at obtaining food from parents during individual feeding bouts. However, while there was a tendency for nestlings that begged earlier to be offered food first, a nestling's position in the nest during these bouts did not influence its feeding success. Males begged more than often females and were offered more food by parents. Males were also more likely to be fed when they begged. This was most likely because males, being larger than females, were able to reach higher while begging. Neither sex was more likely to beg sooner or occupy certain positions in the nest. However, while males that had been transferred from other nests received less food than natal males, there were no differences in food acquisition between transferred and natal females. Differences in the relative success of males and females under different conditions may help explain differences in fledgling sex ratios observed in many dimorphic species.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - psychology & cognitive sciences
  • 3 - behavioral science & comparative psychology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ethologie animale
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - zoology
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - behavioral sciences
Identifiant ISTEX

Behavioral Ecology and Sociobiology

Année de publication
Présence de XML structuré
Version PDF
Score qualité du texte
  • Oiseaux
Type de publication
Powered by Lodex 9.3.8