Nom du corpus

Corpus Systématique Animale

Titre du document

Assortative pairing in Gammarus insensibilis (Amphipoda) infected by a trematode parasite

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Parasitism
  • Host reproductive success
  • Gammarus insensibilis
  • Microphallus papillorobustus
  • Trematode
Nom du fichier dans la ressource
Oiseaux_v2b_01468
Auteur(s)
  • F. Thomas 1
  • F. Renaud 1
  • J. M. Derothe 1
  • A. Lambert 1
  • T. De Meeüs 1
  • F. Cézilly 2
Affiliation(s)
  • 1) Laboratoire de Parasitologie Comparée (URA 698, CNRS), Université Montpellier II, place Eugène Bataillon, F-34095, Montpellier, Cedex 05, France
  • 2) Station Biologique de la Tour du Valat, Le Sambuc, F-13200, Arles, France
Résumé

We have investigated the influence of Microphallus papillorobustus (Trematoda) on the reproductive biology and mating patterns of its intermediate host Gammarus insensibilis (Amphipoda). Infected Gammarus species show altered behaviour which renders them more susceptible to predation by Charadriiform birds, the parasite's definitive hosts. In a natural population of G. insensibilis, mean parasite intensity was higher for unpaired individuals than for paired individuals. Fecundity was reduced in infected amphipods. Size-assortative pairing was significant, although infected males were found with smaller females compared to uninfected males of the same size. There was also a positive assortative pairing by parasitic prevalence. Vertical segregation between infected and uninfected individuals, male-male competition for access to uninfected females, and female choice may explain assortative mating for prevalence. This study provides the first empirical evidence that parasites can have a direct effect on patterns of mating in gammarids.

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 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
79E823EAF7FD75ED361BFFC5171C23D6E277AD16
Revue

Oecologia

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
7.65
Sous-corpus
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-3L73N4NS-X
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