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8 recherche sur le mot-clé 'Phenotypic Plasticity'
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W. Weisser ; B. Stadler | 1994In holocylic aphid species many different morphs are produced during the phase of parthenogenetic reproduction. Because these morphs differ in their life-histories, research has been focused on how individual life-histories can be explained in t[...]article/chapitre/communication
M. Jasienski ; F. Ayala ; F. Bazzaz | 1997article/chapitre/communication
Fourteen samples of cotton aphid, Aphis gossypii clover were obtained from different localities in Australia. Wingless parthenogenetic females from each sample were transferred to seedlings of various host plants in the laboratory and reproduced[...]article/chapitre/communication
The lengths of the body and appendages of the aphid Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) vary seasonally in sexual North American and asexual Australian populations. The first generation of spring aphids in North America and winte[...]article/chapitre/communication
R. Blackman ; J. Spence | 1994Clonal samples of aphids were used as the groups in canonical variate (CV) analysis, in order to compare the temperature responses of single genotypes, and thus to distinguish genotypic and environmental contributions to the phenotypic response [...]article/chapitre/communication
W. Weisser ; C. Braendle | 2001Aphids (Homoptera: Aphidoidea) produce a number of different phenotypes in their life-cycle, among which are winged (alate) and wingless (apterous) morphs. Lowe & Taylor (1964) and Sutherland (1969 a, b) were the first to suggest that aphid clon[...]article/chapitre/communication
C. Mabry ; M. Jasienski ; J. Coleman ; F. Bazzaz | 1997Variation in the performance of 20 genotypes of Polygonum pensylvanicum under two nutrient treatments was studied in a garden experiment. Nutrient fertilization enhanced vegetative biomass and fruit biomass production, but did not result in sign[...]