Nom du corpus

Corpus Systématique Animale

Titre du document

Clutch size in parasitoids: the egg production rate as a constraint

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Optimal foraging
  • clutch size
  • life history theory
  • constraints
  • host-parasite interactions
  • host utilization
Nom du fichier dans la ressource
Insectes_v2b_01357
Auteur(s)
  • Eric L. Charnov 1
  • Samuel W. Skinner 2
Affiliation(s)
  • 1) Department of Biology, University of Utah, 84112, Salt Lake City, UT, USA
  • 2) Department of Biology, Indiana University, 47405, Bloomington, IN, USA
Résumé

In many species of insect parasitoids, adult females mature eggs as they search their environment for hosts. In such species, the number of mature eggs, at the point of finding a host, is a function of the interhost time and the rate of egg maturation. Assuming that interhost search times are variable, we use a version of the marginal value theorem to derive a decision rule for optimizing the time spent exploiting individual hosts; this indirectly determines clutch size. We find that a threshold search time exists above which a female should simply lay her currently mature eggs and depart from the host. However, when the search time has been less than the threshold, a female should oviposit, but then remain on the host to mature and lay additional eggs, until the threshold time is reached.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - evolutionary biology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
  • 1 - science ; 2 - evolutionary biology
  • 1 - science ; 2 - ecology
Identifiant ISTEX
888701CE8D6DF9D0DA331FEEBA5E6CC27CE702C8
Revue

Evolutionary Ecology

Année de publication
1988
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.075
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-6RKG0MCR-V
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