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16 recherche sur le mot-clé
'Comportement d'alarme' 
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M. Montgomery ; L. Nault | 1977
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B. Stadler ; W. Weisser ; A. Houston | 19941. This paper investigates the influence of life-history traits on the defence reactions shown by aphids. In particular, we combine experimental data on the reproductive biology of the monophagous aphid Uroleucon jaceae (L.) feeding on Centaurea[...]
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F. Klingauf | 1976
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P. Wohlers | 1980
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P. Wohlers | 1980
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F. Muller | 1983
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A. Chau ; M. Mackauer | 1997We examined the dropping behaviour of the pea aphid, Acyrthosiphon pisum (Harris), feeding on broad-bean plants in the laboratory. Aphid responses to foraging and oviposition by females of Monoctonus paulensis (Ashmead) were instar-specific and [...]
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H. Roy ; J. Pell ; P. Alderson | 1999Pea aphids (Acyrthosiphon pisum, Homoptera: Aphididae) infected with the fungal pathogen Erynia neoaphidis (Zygomycetes: Entomophthorales) were less sensitive to the aphid alarm pheromone (E)-beta-farnesene than uninfected aphids, Approximately [...]
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P. Wohlers ; W. Tjallingii | 1983
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E. Mondor ; D. Baird ; K. Slessor ; B. Roitberg | 2000When attacked by a predator, an aphid may secrete a droplet of fluid from its cornicles containing a volatile alarm pheromone component, (E)-beta -farnesene. This study investigated both qualitative and quantitative aspects of alarm pheromone pr[...]
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P. Larry Phelan ; M. Montgomery ; L. Nault | 1976
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M. Andrade ; B. Roitberg | 1995Pea aphids show intraclonal variability in antipredator behaviour. Among the offspring of a single parthenogenetically reproducing female, some individuals drop from the plant in response to alarm pheromone while others remain on the plant. We d[...]
