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Plasticity of the reproductive behaviour in a dragonfly,Sympetrum parvulumBarteneff, with reference to the social relationship of males and the density of territories

✍ Scribed by Tetsuyuki Uéda

Book ID
112763077
Publisher
Springer Japan
Year
1979
Tongue
English
Weight
879 KB
Volume
21
Category
Article
ISSN
1438-390X

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At the beginning of the reproductive period in May, there was an increment in both the gonad and heaptopancreas. During the peak phase in June, with high ovary production, there was a decrease in the hepatosomatic index (HSI), particularly for the Ariake females. The minimum gonadosomatic index (GSI