Nom du corpus

Corpus Systématique Végétale

Titre du document

A comparison of the reproductive strategies of three species of Dysdercus from Africa (Hemiptera, Pyrrhocoridae)

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Syst_veg6_v2_014339
Auteur(s)
  • F. K. Kasule
Affiliation(s)
  • Department of Zoology, University of Dar es Salaam, P.O. Box 35064, Dar es Salaam, Tanzania
Résumé

Reproductive strategies have been investigated for three species of Dysdercus from Africa, D. intermedius, D. cardinalis and D. nigrofasciatus. Reproductive parameters were measured for each species on individuals cultured in the laboratory. D. cardinalis is associated more with herbaceous than with arboreal host plants and is intermediate in body size. It tended to have the least age at first reproduction, reproduced most frequently, and layed the smallest clutches on average, spreading relatively high amounts of parental investment in more clutches than the other two species. It also laid the greatest number of clutches and eggs in a lifetime. D. intermedius specializes on arboreal host plants, and is the largest of the three species. It had the greatest age at first reproduction, reproduced less frequently than D. cardinalis, and layed the largest clutches. Its parental investment over time declined earlier than that of D. cardinalis. D. intermedius layed the least number of clutches in a lifetime, but its lifetime gross reproduction was intermediate in magnitude. D. nigrofasciatus has the widest diet breadth, and is the smallest in body size. Its age at first reproduction was similar to that of D. cardinalis, but D. nigrofasciatus reproduced least frequently, laying relatively large clutches. It was similar to D. intermedius in its pattern of parental investment over time, and essentially layed the same number of clutches in a lifetime as the latter species, although its lifetime gross reproduction was the smallest. It is suggested that the reproductive strategies of the three species might have evolved as adaptations to selection events in the niches of the immature stages.

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 - ethologie animale
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
E1D574EF1D450C4BD882C789754EE5E2B2949444
Revue

Oecologia

Année de publication
1985
Présence de XML structuré
Non
Score qualité du texte
10
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0Q9B85MX-S
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