Researches on Population Ecology
Vol. 4, 1962

Contents

Morisita, M.
I_ƒÂ-index, a measure of dispersion of individuals
1-7


Tanaka, R.
Adrenal analysis for critique of the social stress theory in natural populations of a montane vole
8-16


Maeda, H., Nakada, Y. and Fujiwara, K.
Frequency distribution of catch per tow by the Danish trawlers in the waters off the Bristol Bay, with some considerations on the relation of total catch to the weight limit of hauling
17-27


Kodama, Y.
Growth of the stocked Ayu-fish in pond already inhabited by some fish of the same species
28-34


Ito, Y., Nakamura, M., Kondo, M., Miyashita, K. and Nakamura, K.
Population dynamics of the chestnut gall-wasp, Dryocosmus kuriphilus YASUMATSU (Hymenoptpera: Cynipidae). II. Distribution of individuals in bud of chestnut tree.
35-46


Kuno, E.
The effect of population density on the reproduction of Trichogramma japonicum ASHMEAD (Hymenotpera: Trichogrammatidae).
47-59


Kanamitsu, K.
Survival curves of the population of Dendrolimus spectabilis BUTLER (Lepidoptera: Lasiocampidae).
60-64