Nom du corpus

Corpus Systématique Animale

Titre du document

Factors promoting polygyny in European birds of prey—a hypothesis

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Polygyny
  • Raptor
  • Owl
  • Food supply
  • Nomadism
Nom du fichier dans la ressource
Oiseaux_v2b_01407
Auteur(s)
  • Erkki Korpimäki
Affiliation(s)
  • Department of Zoology, University of Oulu, Linnanmaa, SF-90570, Oulu, Finland
Résumé

Polygyny is known in at least nine (out of 36) European raptor (Accipitriformes and Falconiformes) and seven (out of 13) owl (Strigiformes) species that hunt mobile prey. The hypothesis put forward here suggests that abundant food supply and nomadic tactics of breeding dispersal are crucial factors promoting polygyny in birds of prey. The hypothesis predicts that: (1) polygyny is more common in rodent-eating birds of prey than in bird-eating ones; (2) polygyny is more frequent in good vole years than in poor ones; (3) the frequency of polygyny in vole-eating species should increase northwards in Europe, as the densities of voles in the peak phase increase in that direction; (4) the frequency of polygyny and harem size should be increased by supplementary feeding; and (5) polygyny is more common in nomadic birds of prey with annual pair bonds and weak territoriality than in resident birds of prey with longerterm pair bonds and stronger territoriality. A majority of the available data is consistent with predictions 1–3 and 5, but data on prediction 4 are scanty. Further studies on ringed birds of prey are needed to test the validity of the hypothesis.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - vertebres: zoologie generale, morphologie, phylogenese, systematique, cytogenetique, repartition geographique
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
4F52969A96F02B5B6EA62E43D7755C6F69165D16
Revue

Oecologia

Année de publication
1988
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.292
Sous-corpus
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-0HM37KD4-6
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