2020:groups:g5:start
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2020:groups:g5:start [2020/01/10 22:50] – [Introduction] sudbrack | 2020:groups:g5:start [2024/01/09 18:45] (current) – external edit 127.0.0.1 | ||
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- | Invasions | + | Infestations |
- | Twelve different biotypes of whitefly have already been distinguished through phylogenetic analysis. One of these biotypes, referred to as 'B biotype', | + | Twelve different biotypes of whitefly have already been distinguished through phylogenetic analysis. One of these biotypes, referred to as 'B biotype', |
Liu //et al.// detected significant changes in sex ratio in both the indigenous and alien populations in both regions. In China, when populations of either B or ZHJ1 occurred alone, B usually had female | Liu //et al.// detected significant changes in sex ratio in both the indigenous and alien populations in both regions. In China, when populations of either B or ZHJ1 occurred alone, B usually had female | ||
- | ratios of 60~70%, which were higher than the 50~60% female ratios in ZHJ1. Very similar results also happened to AN biotype. This difference was even higher when the two different biotypes coexisted during the invasions. Then, the same group decided to reproduce this behavior in controlled environments, | + | ratios of 60~70%, which were higher than the 50~60% female ratios in ZHJ1. Very similar results also happened to AN biotype. This difference was even higher when the two different biotypes coexisted during the infestations. Then, the same researchers |
- | Interestingly, | + | Interestingly, |
This manipulation happens, literally, as a third wheel - the different biotype is able to court the female, but not to copulate with her. Moreover, copulation by indigenous individuals is partly blocked by B males that readily attempt to court with females of either biotype — a behavior not reciprocated by the indigenous males. | This manipulation happens, literally, as a third wheel - the different biotype is able to court the female, but not to copulate with her. Moreover, copulation by indigenous individuals is partly blocked by B males that readily attempt to court with females of either biotype — a behavior not reciprocated by the indigenous males. | ||
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Propose and analyze a mathematical model for whitefly populations to investigate the strategy of changing copulation frequency in whiteflies biotypes. | Propose and analyze a mathematical model for whitefly populations to investigate the strategy of changing copulation frequency in whiteflies biotypes. | ||
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===== Suggested questions ===== | ===== Suggested questions ===== | ||
2020/groups/g5/start.1578696621.txt.gz · Last modified: 2024/01/09 18:45 (external edit)