Nom du corpus

Corpus Systématique Animale

Titre du document

Insect size tactics and developmental strategies

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Scapteriscus
  • Size variation
  • Developmental strategies
  • Life history
  • Mole crickets
Nom du fichier dans la ressource
Insectes_v2b_01456
Auteur(s)
  • T. G. Forrest
Affiliation(s)
  • Department of Entomology, University of Florida, 32611, Gainesville, FL, USA
Résumé

Insect size tactics or developmental strategies are discussed in relation to decisions individuals make about when to mature. Such decisions carry with them costs and benefits in terms of that individual's reproductive success. Whenever size affects fitness, selection should act such that individuals evaluate the costs and benefits due to changes in size and should mature when the ratio of benefit to cost is maximized. Predictions about seasonal changes in adult sizes within a population are tested on two species of mole cricket, Scapteriscus acletus and vicinus. Specifically, individuals maturing in the fall should be larger than average because there is no cost associated with delayed reproduction since reproduction occurs only during spring months. Smaller than average individuals should remain in juvenile stages and get larger before reproducing. Also it is predicted that as the spring reproductive season progresses a greater proportion of smaller individuals should mature because the costs due to delaying reproduction increase. The changes in seasonal distribution of adult sizes of mole crickets support the predictions and suggest that individuals make decisions about when to mature based on costs and benefits associated with changes in size.

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
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
42373E3F0701EC7FF1848C70B74687801D076F79
Revue

Oecologia

Année de publication
1987
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.082
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-G8M1P1CK-9
Powered by Lodex 9.3.8