Adaptive recovery after fitness reduction: the role of population size

The transfer of natural enemies from the field to a mass-production facility may result in a sudden reduction in fitness. A sharp decrease in population size during the season in the mass-production facility can lead to further reduction in fitness and will, in addition, enhance the possibility of f...

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Bibliographic Details
Published inQuality Control and Production of Biological Control Agents pp. 89 - 92
Main Author Hoekstra, R. F
Format Book Chapter
LanguageEnglish
Published Wallingford, UK CABI Publishing 2003
CABI
CAB International
Subjects
biocontrol
biocontrol agents
biological control
biological control agents
Biological Control of Pests
biological control organisms
Biologische bestrijding van plagen
fitheid
fitness
genetic drift
insect control
mass rearing
massakweek
mutaties
mutations
natural enemies
natuurlijke vijanden
parasites
parasitoids
Pest control
populatiegenetica
population genetics
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Summary:The transfer of natural enemies from the field to a mass-production facility may result in a sudden reduction in fitness. A sharp decrease in population size during the season in the mass-production facility can lead to further reduction in fitness and will, in addition, enhance the possibility of fixation of deleterious mutations in the population by genetic drift. Such reductions in fitness can be prevented by keeping very large populations in the mass-production unit and by regularly replacing laboratory populations with new, field-collected individuals.
ISBN:9780851996882
0851996884
DOI:10.1079/9780851996882.0089