Researches on Population Ecology
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Phase variation in the true armyworm,Leucania unipuncta Hawroth (1)
Researches on Population Ecology - Tập 3 - Trang 60-78 - 1956
Preference and performance linkage in aPhyllocolpa sawfly on the willow,Salix miyabeana, on Hokkaido
Researches on Population Ecology - Tập 37 - Trang 23-28 - 1995
A leaf-folding sawfly in the genusPhyllocolpa (Hymenoptera: Tenthredinidae) attackingSalix miyabeana (Salicaceae) was studied near Sapporo, Hokkaido, along the Ishikari River in 1993. Host plant individuals were young trees 4–7 years old which were growing rapidly, producing some long shoots with large leaves. On a gradient of shoot length classes from 0–5 cm long to over 80 cm long, shoots were m...... hiện toàn bộ
Studies on the mating system of the winter cherry bug,Acanthocoris sordidus Thunberg (Heteroptera: Coreidae) I. Spatio-temporal distribution patterns of adults
Researches on Population Ecology - Tập 21 - Trang 317-331 - 1980
Comparative analysis of the population dynamics of rice leafhoppers,Nephotettix cincticeps Uhler andNilaparvata lugens Stål, with special reference to natural regulation of their numbers
Researches on Population Ecology - Tập 12 - Trang 154-184 - 1970
The species-area relation for archipelago biotas: Islands as samples from a species pool
Researches on Population Ecology - Tập 25 - Trang 221-237 - 1983
If the immigration of species from a mainland or among islands is taken into account, each island of an archipelago can be regarded as a sample from a species pool. When two or more islands are combined so as to give larger samples, the resultant species-area relation does not differ from that observed in a continuous and homogeneous habitat on a mainland. This relation can be described by either ...... hiện toàn bộ
Studies on interspecies competition between the azuki bean weevil,Callosobruchus chinensis, and the southern cowpea weevil,C. maculatus II. Competition under different environmental conditions
Researches on Population Ecology - - 1967
The experimental studies was done on the interspecies competition between the azuki bean weevil,Callosobruchus chinensis, and the southern cowpea weevil,C. maculatus, under the different environmental conditions.
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Investigation into the edge effect by use of capture-recapture data in a vole population
Researches on Population Ecology - Tập 13 - Trang 127-151 - 1972
A substantial explication of the edge effect has been attempted by use of capture-recapture data for a vole population (Microtus montebelli), gathered intwo plots of 100×100 m or less during 12 days, cheked twice daily, in August 1970; the sample was quite sufficient for the aim. The edge effect as guessed by increased catch per trap is usually suspected to ensue from range-settlers in the outside...... hiện toàn bộ
Gradients in cyclicity, predation and microtine life history
Researches on Population Ecology - Tập 40 - Trang 137-139 - 1998
Effects of host and parasitoid age on search behaviour and oviposition rates inLariophagus distinguendus Förster (Hymenoptera: Pteromalidae)
Researches on Population Ecology - Tập 27 - Trang 65-76 - 1985
Oviposition rates and related behaviours were quantified forLariophagus distinguendus
Förster attackingCalosobruchus chinensis (L.) andC. maculatus (F.). Oviposition rates varied with parasitoid age; parasitoids aged 1–7 days laid approximately twice as many eggs per day as those aged 8–14 days. Similar differences were noted in search rates and handling times; younger parasitoids ...... hiện toàn bộ
Dispersion analyses and resource utilization of aphid parasitoids in a non-depletable environment
Researches on Population Ecology - Tập 26 - Trang 124-133 - 1984
Dispersions and resource utilization of primary and secondary parasitoids developing in non-depletable primary host populations were determined for an aphid-parasitoid community occurring on strawberries. Analyses of dispersions based onGreen's coefficient andLloyd's Patchiness Index indicated parasitized aphids were highly aggregated initially, became less aggregated as density increased, and rem...... hiện toàn bộ
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