Possible consequences of a specific interaction between predators and parasites of aphids

Empirical data on trophic interactions between the aphid predator Metasyrphus corollae, the aphid parasite Diaeretiella rapae and the aphids Brevicoryne brassicae and Myzus persicae were collected. A skewed curve seemed to express the development of parasitism in the absence of the predator. An incr...

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Bibliographic Details
Published in:Ecological modelling 1992-06, Vol.61 (3), p.253-265
Main Authors: Kindlmann, Pavel, Ro̊žička, Zdeněk
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Aphididae
Aphidiidae
Biological and medical sciences
BIOLOGICAL CONTROL
BREVICORYNE BRASSICAE
COMPUTADOR
COMPUTERS
CONTROL BIOLOGICO
Demecology
DEPREDADORES
Diaeretiella rapae
Diptera
Fundamental and applied biological sciences. Psychology
Homoptera
Hymenoptera
Invertebrates
LUTTE BIOLOGIQUE
MATHEMATICAL MODELS
Metasyrphus corollae
MODELE MATHEMATIQUE
MODELOS MATEMATICOS
MYZUS PERSICAE
ORDINATEUR
PARASITISM
PARASITISME
PARASITISMO
PREDATEUR
PREDATORS
Protozoa. Invertebrata
SIMULACION
SIMULATION
Syrphidae
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Summary:Empirical data on trophic interactions between the aphid predator Metasyrphus corollae, the aphid parasite Diaeretiella rapae and the aphids Brevicoryne brassicae and Myzus persicae were collected. A skewed curve seemed to express the development of parasitism in the absence of the predator. An increase in the percentage of parasitized aphids of both species occurred at the time of intense feeding by the predator released into the system. A simple mathematical model for this situation was developed. The simulation of interactions between aphids and the parasite corresponded well to the empirically obtained curve. Application of the model to a range of situations was investigated by computer simulations. Its practical value for further considerations and predictions in biological control is demonstrated.
ISSN:0304-3800
1872-7026
DOI:10.1016/0304-3800(92)90021-6