Nom du corpus

Corpus Systématique Animale

Titre du document

Kin discrimination in salmonids

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Poissons_v2b_005163
Auteur(s)
  • Grant E. Brown 1,2
  • Joseph A. Brown 2
Affiliation(s)
  • 1) Biopsychology Programme Memorial University of Newfoundland, A1C 5S7, St John's Newfoundland, Canada
  • 2) Ocean Sciences Centre, Memorial University of Newfoundland, A1C 5S7, St John's Newfoundland, Canada
Résumé

The data presented here suggest that significant selection pressures towards kin discrimination behaviour patterns result from kin-biased territorial defence behaviour patterns. Salmonids employ a phenotype matching recognition mechanism allowing individuals to discriminate unfamiliar kin. Kin discrimination abilities allow individuals to reduce the levels of aggression associated with territorial defence towards related conspecifics and to defend smaller territories near kin versus non-kin. This kin-biased territorial defence behaviour is observed in at least one species under a wide range of territorial quality conditions. Within kin groups, subordinate individuals obtain a greater number of foraging attempts, resulting in kin-biased foraging within the social group. As a result of this kin-bias, individuals within kin groups show significantly higher mean weight increases (increased direct fitness benefits) and reduced variance in these increases (increased indirect benefits). Since all individuals within the kin groups obtained higher, less variable weight increases, we can argue that individuals are increasing their inclusive fitness as a result of these kin-biased behaviour patterns. Based on these results, and on what is known about the life history of a variety of salmonid and non-salmonid species, we can formulate a number of testable predictions. By testing these predictions, we may be better able to understand both the proximate and ultimate causation of kin discrimination abilities in a variety of fishes.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - fisheries
Catégories INIST
  • 1 - sciences humaines et sociales
  • 2 - prehistoire et protohistoire
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
  • 1 - science ; 2 - fisheries
Identifiant ISTEX
5679AA9DD6199EEF6389D469EA13EEB81DE448C6
Revue

Reviews in Fish Biology and Fisheries

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.604
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-87J33J27-7
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