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Volume 19 (1969)
- Issue 6 Pages 217-
- Issue 5 Pages 169-
- Issue 4 Pages 127-
- Issue 3 Pages 85-
- Issue 2 Pages 43-
- Issue 1 Pages 1-
Predecessor
Volume 19, Issue 3
Displaying 1-17 of 17 articles from this issue
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Article type: Cover
1969 Volume 19 Issue 3 Pages Cover1-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDownload PDF (28K) -
Article type: Cover
1969 Volume 19 Issue 3 Pages Cover2-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDownload PDF (28K) -
Article type: Appendix
1969 Volume 19 Issue 3 Pages App1-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Yusaku OKADAArticle type: Article
1969 Volume 19 Issue 3 Pages 85-92
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSSado, the largest island (857km^2) in the Japan Sea lying about 32 km off the coast of the mainland of Japan (Fig. 1), is located between 37°48′and ca. 38°N. Lat. and between ca. 180°and 138°34′E. Long. The island is composed of two parts : Osado and Kosado, connected by the graben-valley Kuninaka. Osado is traversed lengthwise by a mountain range whose chief peak is Kinpokusan (1,173m), where as Kosado is composed of undulating hills, as high as 500 to 600m in altitude. The island is washed by the warm current named the Japan Sea Current, and is favoured by an oceanic climate, so that its winter climate is warmer than the adjacent areas in Houshu. The direction of the prevailing winds is WNW in winter and ESE-SE-WSW in summer. The vegetation of the island, therefore, is under the control of heavy NW winds in winter. The author has observed the floristic composition and structure of the forest communities in the coastal part of Osado. Deciduous broad-leaved thickets occur frequently along the northern coast of Osado. They consist of Quercus dentata and Acer mono, 2 to 8m in height. We can find them near the sea-shore exposed to the heavy west wind prevailing in winter. Along the porthwest coast of Osado from Tassha at the south to Seki at the north, fragmentary remnants of the deciduous broad-leaved forest are seen. They are composed of Quercus dentata, Acer mono, etc. The deciduous broad-leaved forest consisting of Acer mono, Zelkova serrat and Pinus spp. is seen along the eastern coast of Osado. The Acer mono-Zelkova serrata forests are thought to preserve the climax aspect as seen from the structure and floristic composition, etc. Evergreen broad-leaved forests are also found at Aikawa and Futami in Osado. These sites are favoured by warmer temperatures and are protected against the heavy west wind in winter. The climax forest along the warmer coast of the island is one of evergreen broad-leaved forests, and, from the floristic composition, it belongs to the Machilus thunbergu-Polystichum polyblepharum association of Shiia sieboldi alliance characterized by species such as Neolistsea sericea, Fatsia japonica, Machilus thumbergu and Elaeagnus macrophylla.View full abstractDownload PDF (1311K) -
THE EFFECT OF DENSITY ON PROGENY POPULATION IN CALLOSOBRUCHUS CHINENSIS L. FROM DIFFERENT LOCALITIESHiroshi NAKAMURAArticle type: Article
1969 Volume 19 Issue 3 Pages 92-96
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSUsing the Azuki bean weevils C. chinensis, obtained from 13 different localities in Japan, the effects of the population density upon fecundity, fertility of the eggs deposited, mortality during the preimaginal period, and progeny population were studied under the controlled experimental condition of 30℃, 75 percent R. H., and the illumination of 16 hours. The curve representing the relation between the density of the weevils and the number of their progeny was convex in general. However, the absolute values at equilibrium state, the peaks of the curve, and the velocities of the population growth at the initial stage were variable. A conspicuous variation was found in the relation between the number of deposited eggs and mortality at the egg stage among the localities, and this seems to be due to the variation in adult activity. The egg mortality tended to be heigher in the active type of C. chinensis than in the sluggish ones. The numbers of eggs per female were also different among the localities. Despite these differences, there was no remarkable difference in the relation between the number of larvae and that of the emerged adults per bean. Therefore, the local difference in the absolute value of progeny population may mostly be caused by the variations of egg fertility and adult activity. From the view point of the emergence of the active weevils, it is noted that the velocity of population growth at the initial stage tended to be fast in C. chinensis at the localities which the percentage of the active type was low.View full abstractDownload PDF (674K) -
Masaki KONDOHArticle type: Article
1969 Volume 19 Issue 3 Pages 96-102
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDuring the studies of this series it was found that both changes of the weight and the corpulency have close relation to increase and decrease in the fat body in the abdomen. Before the demonstration of this phenomena, I elucidate in this paper the relation among the head weight, thorax weight and abdomen weight, and the variability of these weights. The weights of head, thorax, abdomen and appendages (Y) have a relation Y=aX^3 for head width (X). Among these weights the ratios of the respective parts can be shown by the ratios of the coefficients of the regression curves (a), that is, the head being 15 percent, thorax 27 percent and abdomen 58 percent of the live weight, in which the weight of the antennae is 1.6 percent and that of six legs 9.4 percent of the live body weight. Variability of the abdomen weight is very great. The range of the variation of the abdomen weight is about one-fifth of that of the whole live weight and about one-fourth of the whole dry one. The relations among the weights of dry matter and water in the whole body and in the respective parts are also discussed by the use of coefficients of the head width cubed. These coefficients are independent of the head width.View full abstractDownload PDF (787K) -
Kazuo ASANOArticle type: Article
1969 Volume 19 Issue 3 Pages 102-116
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSIm August 1967 und 1968 hat der Autor sudlich vom Akaisi-Gebirge im Yukidzima-Moor (ca. 2480m. u. M.), das ein maβig hoher Berggrat des Tyausudake-Bergs einschlieβt, und im Sendzigabara-Moor (ca. 2480m. u. M.) auf dem Tekeridake-Berg eine pflanzensoziologische Untersuchung durchgefuhrt. Weil die Gebirge, zu denen diese beiden Moore gehoren, jedenfalls auf der pazifischen Seite von der Hauptinsel Japans laufen, sind sie zwar im Winter wegen des Monsuns an Schneewasser und in der Regenzeit an stagnierendem Wasser uberschwenglich reich, aber im Sommer verschwind selbst darauf verwehter Schnee spurlos, wahrend in den beiden Mooren auch der Grundwasserstand so merklich sinkt, daβ nicht selten trockner Boden erscheint. Das Yukidzima-Moor ist uns geomorphologisch und topographisch sehr interessant ; denn wir konnen Strukturboden, Hugel und Rinnen finden, welche alle auf fossilen (?) Steinpolygonen geformt und uns bereits bekannt sind. In den Untersuchungsgebieten existieren 30 pflanzensoziologische Aufnahmen von carextorfgesellschaftlichen Bestanden und drei Aufnahmen von stereocaulon-rhacomitrium-moosfle-chtengesellschaftlichen Bestanden auf Felsen. Sie sind zwar in folgende Vegetationseinheiten untergeteilt, aber ihre Klasse und Ordnung sind noch nicht formal bestimmt (nom. prov.). I Carici-Cladoniion ASANO, all. nov. 1. Empetro-Cladonietum ASANO, ass. nov. 2. Calamagrosti-Polytrichetum ASANO, ass. nov. 2A. euphrasietosum ASANO, subass. nov. 3. Gentiano-Rhacomitrietum ASANO, ass. nov. Pflanzengesellschaften auf Felsen in den Rinnen. 4. Stereocaulo-Rhacomitrietum ASANO (1968) Die Carici-Cladoniion ist eine charakteristische moorige Pflanzengesellschaft auf den Gebirgen, die in einer subalpinen Zone mit Nadelholzern und in einem pazifischen Klimagebiet liegen. Der neue Verband ist eine ausgezeichnete Verbindung von Horstpflanzen, Strauchflechten und Bryochamaephyten.View full abstractDownload PDF (2564K) -
Kenzo HANEDA, Kiyoshi KIUCHIArticle type: Article
1969 Volume 19 Issue 3 Pages 116-125
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSThis paper reports the observations on the breeding of Phylloscopus borealis studied in 1967 and 1968 in the coniferous forest of the Otanomosu Plateau, Shiga Heights in Central Japan. Its arrival to the breeding ground, territorial distribution, nest-sites, breeding behaviours from egg-laying to family life, enemies and parasitism by Cuckoo are described, with discussions on the territorial structure of this species.View full abstractDownload PDF (1339K) -
Article type: Appendix
1969 Volume 19 Issue 3 Pages 125-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Toshio HIROI, Hideo IWAKI, Masami MONSIArticle type: Article
1969 Volume 19 Issue 3 Pages 125-126
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Sumio KUROIWAArticle type: Article
1969 Volume 19 Issue 3 Pages 126-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Jun NAKAMURAArticle type: Article
1969 Volume 19 Issue 3 Pages 126-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Yukimaru SUGIYAMAArticle type: Article
1969 Volume 19 Issue 3 Pages 126-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Akira GOTOH, Yasuomi OHSHIMAArticle type: Article
1969 Volume 19 Issue 3 Pages 126-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
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Article type: Appendix
1969 Volume 19 Issue 3 Pages App2-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDownload PDF (72K) -
Article type: Cover
1969 Volume 19 Issue 3 Pages Cover3-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDownload PDF (33K) -
Article type: Cover
1969 Volume 19 Issue 3 Pages Cover4-
Published: June 01, 1969
Released on J-STAGE: April 11, 2017
JOURNAL FREE ACCESSDownload PDF (33K)
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