Researches on Population Ecology
Vol. 31, No. 2, 1989

Contents

Yamamura, K.
Effect of aggregation on the reproductive rate of populations
161-168


Bellows Jr, T. S., Van Dresche, R. G. and Elkinton, J. S.
Extentions to Southwood and Jepson's method of estimating numbers entering a stage for calculating mortality due to parasitism
169-184


Nakata, K.
Regulation of reproduction rate in a cyclic population of the red-backed vole, Clethriuonomys rufocanus bedfordiae
185-209


Nishida, T.
Scramble competition polygyny in the coreid bug (Colpula lativentris)
211-224


Matsura, T. and Takano, H.
Pit-relocation of antlion larvae in relation to their desity
225-234


Kidd, N. A. C. and Jervis, M. A.
The effects of host-feeding behaviour on the dynamics of parasitoid-host interactions, and the implications for biological control
235-274


Poswal, M. A. and Berberet, R. C.
Host-dependent association and its implications on the relative abundance of blue alphalpha aphid and pea aphid (Homoptera: Aphididae) on alphalpha in Oklahoma
275-287


Vaillant, J. and Derridj, S.
Estimation of Europian corn borer egg masses density by sampling of runs
289-304


Matsumiya, Y. and Matsuishi, T.
Estimation of population parameters by optimizing catch effort allocation
305-310


Tanaka, Y.
Genetic variance and covariance patterns of larval development in the small white butterfly Pieris rapae crucivora Boisduval
311-324


Trumble, J. T., Brewer, M. J., Shelton, A. M. and Nyrop, J. P.
Transportability of fixed-precision level sampling plans
325-342


Adachi, I.
Spatial distribution and mortality process of Anophlophora malasiaca (Coleoptera: Cerambycidae) eggs in citrus groves
343-352


Spradbery, J. P., Tozer, R. S., Robb, J. M. and Cassells, P.
The screw-worm fly Chrysomya bezziana Villeneuve (Diptera: Calliphoridae) in a sterile insect release trial in Papua New Guinea
353-366


Manly, B. F. J. and Seyb, A.
A comparison of three maximum likelihood models for stage-frequency data
367-380


Kakutani, T., Inoue, T. and Kato, M.
Nectar secretion pattern of the dish-shaped flower, Cayratia japonica (Vitaceae), and nectar utilization patterns by insect visitors
381-400