Correlation between Olfactory Responses, Dispersal Tendencies, and Life-history Traits of the Predatory Mite Neoseiulus Womersleyi (Acari: Phytoseiidae) of Eight Local Populations |
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Authors: | Taro Maeda |
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Institution: | (1) Natural Enemies Laboratory, Insect Genetics and Evolution Department, National Institute of Agrobiological Sciences, Ohwashi 1-2, Ibaraki Tsukuba, 305-8634, Japan |
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Abstract: | To investigate the relationship between foraging behavior and life-history traits of the predatory mite Neoseiulus womersleyi, the olfactory responses, dispersal ratios from a prey patch, predation rates, fecundity, and developmental times in eight
local populations of N. womersleyi were investigated. Significant differences among local populations were found in all these traits except fecundity. None
of the life-history traits correlated with foraging behavior. A significant positive correlation was found only between the
olfactory response and the dispersal ratio. These results suggested that predatory mites with low olfactory responses would
stay in a prey patch longer than predatory mites with high olfactory responses. |
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Keywords: | Dispersal tendency Herbivore-induced plant volatiles Life-history traits Neoseiulus womersleyi Olfactory response |
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