Titre : | Variation in selected life-history parameters of the parasitoid wasp, Aphidius ervi: influence of host developmental stage |
Auteurs : | R. Sequeira ; M. Mackauer |
Type de document : | article/chapitre/communication |
Année de publication : | 1994 |
Format : | vol. 71 no. 1 ; 15-22 |
Langues: | = Anglais |
Mots-clés: | PARASITOIDE ; CYCLE EVOLUTIF ; RELATION HOTE PARASITE ; STADE DEVELOPPEMENT ; CROISSANCE ; SURVIE ; FECONDITE ; SUCCES REPRODUCTEUR ; ALLOCATION RESSOURCE ; APHIDIUS ERVI ; ACYRTHOSIPHON PISUM ; DEPREDATEUR ; PARASITISME ; REPRODUCTION ; BRACONIDAE ; HYMENOPTERA ; INSECTA ; ARTHROPODA ; INVERTEBRATA ; APHIDIDAE ; APHIDOIDEA ; HOMOPTERA ; Parasite ; Stade larvaire ; Taux de reproduction ; Acyrthosiphon pisum ; Aphidius ervi ; Aphididae ; Aphidiidae |
Résumé : | We determined the age-specific fecundity and survival of the solitary parasitoid wasp, Aphidius ervi Haliday (Hymenoptera: Aphidiidae), under constant laboratory conditions. Wasps were reared in each of the four nymphal instars of apterous pea aphids, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae): L::(1) (age 24 h), L::(2) (48 h), L::(3) (72 h), and L::(4) (120 h). Age-specific survival (l::(x)) and fecundity (m::(x)) differed between parasitoids developing in different aphid instars. The wasps' life-time reproductive success, as indexed by the intrinsic rate of population increase (r::(m)), varied non-linearly with adult biomass and host size at parasitization |
Source : | Entomologia experimentalis et applicata |
Exemplaires (1)
Centre | Localisation | Section | Cote | Statut | Disponibilité | Département |
---|---|---|---|---|---|---|
Poitou-Charentes | ERIST Poitou-Charentes - Lusignan | Base Aphide | A4C1E2 | Empruntable | Disponible pour le prêt |