JAPANESE JOURNAL OF ECOLOGY

[title in Japanese]

Article type: Cover
1974 Volume 24 Issue 4 Pages Cover1-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_Cover1

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[title in Japanese]

Article type: Cover
1974 Volume 24 Issue 4 Pages Cover2-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_Cover2

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[title in Japanese]

Article type: Appendix
1974 Volume 24 Issue 4 Pages App1-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_App1

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DAS CYCLOBALANOPSETUM GILVAE IM SHREINWALD VON USAHATIMAN

Tokio SUZUKI, Eiji MINAMI, Akihisa YUASA

Article type: Article
1974 Volume 24 Issue 4 Pages 231-236
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_231

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SUZUKI, Tokio, Eiji MINAMI und Akihisa YUASA (Lab. f. Pflanzensoziol., Univ. Ooita, Ooita) Das Cyclobalanopsetum gilvae im Schreinwald von Usa-Hatiman. Jap. J. Ecol. 24,231-236 (1974) Der Schreinwald von Usa-Hatiman ist der groβte naturnabe Waldbestand in der Tieflandstufe der Insel Kyusyu. Der Standort ist geeignet fur Menschensiedlung und Reiskultur, und das Holz dieser Eiche und des Kampferbaums ist prachtig, sodaβ man heute solchen Bestanden fast nirgendwoanders begegnen kann. Die Flora enthalt 56 Arten und darunter kann man acht Kennarten erfinden. Das Lebensformenspektrum zeigt uberwaltigendes Vorherrschen von den immergrunen Laubbaumen. Im Artmachtigkeitsspektrum folgen die immergrunen Chamaephyten, Lianen, und Straucher. Der Neo-Grisebachsche Vegetationstypus dieses Waldes ist der Cyclobalanpsis-Rumohra-Typus. Weil das Kronendach ziemlich dicht ist, betragt das Licht auf dem Unterwuchs 90-400 lux. Es ist dunkler als in der Buchenwaldern von Oze. Trachelospermum asiaticum und Ophiopogon japonicus sind ziemlich indifferent zum Licht, wahrend Maesa japonica, Rumohra aristata, Dryopteris erythrosora lichtempfindlich sind. Die Bodenreaktion veranschaulicht die Eigenschaft des typiscen Shiiawaldbodens, wo der A-weniger sauer ist als der B-Horizont. Obwohl heute die Assoziation fast ganz in ihrem potenziellen Areal verschwunden ist, muβ sie fruber fast die Tieflander im Nordost von Kyusyu bedeckt haben. K. HATANAKA hat noch durch seine Pollehanalyse die Verbindung von Cyclobalanopsis und Podocarpus bestatigt, was die Anwesenheit dieser Assoziation von der R II-Periode (Nacheiszeitwarmeperiode) andeuten wurde.

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STUDIES ON THE MANGROVE COMMUNITY : I. THE DISTRIBUTION OF THE MANGROVE COMMUNITY IN JAPAN

Tsuneo NAKASUGA, Hohyo OYAMA, Masahiro HARUKI

Article type: Article
1974 Volume 24 Issue 4 Pages 237-246
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_237

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NAKASUGA, Tsuneo, Hohyo OYAMA (Fac. Agr., Univ. Ryukyus, Naha) and Masahiro HARUKI (Fac. Agr., Hokkaido Univ., Sapporo) Studies on the mangrove community. I. The distribution of the mangrove community in Japan. Jap. J. Ecol. 24,237-246 (1974) The distribution of the mangrove community from Kiire (Kagoshima Pref.) to Iriomotejima (Okinawa Pref.) is described. There are 3 stands in Kyushu, 5 in Tanegashima, 1 in Yakushima, 3 in Amamioshima, 31 in Okinawa, 1 in Kumejima, 7 in Miyakojima, 10 in Ishigakijima and 24 stands in Iriomotejima. In these investigations six mangrove species were observed : Kandelia candel (L.) DRUCE, Bruguiera conjugata (L.) MERR., Rhizophora mucronata LAMK., Avicennia marina (FORSK.) VIERH., Sonneratia alba SM. and Lumnitzera racemosa WILD. Three tree types of K. candel were observed : (I) stocky tree type, (II) lanky tree type and (III) bulky tree type. The 8 types of habitat segregation of the mangrove species from coastal and riverside mudflats towards inland are as follows ; 1) K.candel (I) type. 2) K.candel (I) type-K.candel (II) type. 3) K.candel (I) type-K.candel (III) type. 4) K.candel (I) type-B.conjugata・K.candel (III) type. 5) B.conjugata・K.candel (III) type. 6) A.marina・R.mucronata-A.marina・S.alba・R.mucronata-(K.candel)・S.alba・B.conjugata. 7) S.alba・(K.candel)-R.mucronata・B.conjugata. 8) R.mucronata-R.mucronata・B.conjugata-B.conjugata.

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THREE-DIMENSIONAL DISTRIBUTION OF LIGHT INTENSITY IN A TROPICAL RAIN FOREST OF WEST MALAYSIA

Kyoji YODA

Article type: Article
1974 Volume 24 Issue 4 Pages 247-254
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_247

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YODA, Kyoji (Dep. Biol., Fac. Sci., Osaka City Univ., Osaka) Three-dimensional distribution of light intensity in a tropical rain forest of West Malaysia. Jap. J. Ecol. 24,247-254 (1974) The frequency distribution of relative light intensity at various height levels in an undisturbed rain forest (Pasoh Forest Reserve, Negri Sembilan, West Malaysia) was closely approximated by the lognorinal distribution, proving that the geometric mean was more reasonable than the arithmetical mean as the representative value of relative light intensity received by a certain height level under the leaf canopy. The mean value tended to decrease exponentially with decreasing height in each of the four layers between 0 m and 4 m, 4 m and 32 m, 32 m and 48 m and over 48 m above the ground. This suggested that the leaf area density was more or less homogeneously distributed in the vertical direction within each of the four layers. A diagrammatic representation of the three-dimensional distribution of relative light intensity in the forest canopy was prepard.

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SEASONAL VARIATIONS IN THE PHYSICO-CHEMICAL AND BIOLOGICAL PROPERTIES OF A TROPICAL SHALLOW POND

S.A.K. NASAR, JAYASHREE DATTA-MUNSHI

Article type: Article
1974 Volume 24 Issue 4 Pages 255-259
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_255

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NASAR, S.A.K. and JAYASHREE DATTA-MUNSHI (Ecol. Res. Lab., Post-Graduate Dept. Zool., Bhagalpur Univ., Bihar, India) Seasonal variations in the physico-chemical and biological properties of a tropical shallow pond. Jap. J. Ecol. 24,255-259 (1974) The physico-chemical factors of a tropical fresh water shallow pond in Bhagalpur (India) have been studied along with seasonal variations of plankton and discussed in the present communication. (1) Basing upon the abiotic environmental characteristics and the biotic nature, the shallow pond surveyed can be judgd to be one of the "eutrophic" water areas. (2) The considerable fluctuation of dissolved okygen has been correlated with the seasonal changes of macrophytic biomass of the pond. (3) The absence of free CO_2 and abundance of macrophytes, plankton and air-breathing fishes indicate that free CO_2 is not a conditioning factor for their production and growth. (4) Phosphate in the pond soil was not entirely absorbed by the profuse growth of macrophytes even during the intensive photosynthesis. (5) The fishes found in the pond are mostly air-breathing and provided with accessory respiratory organs. Some of the weed fishes have indirect food relation with the macrophytes, because they harbour all types of live food organimsms of fishes. These fishes also use the macrovegetation for shelter and breeding purposes. (6) Such type of ponds infested with macrophytes is suitable for the inhabitation of air-breathing fishes.

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INTRODUCTION TO THE SYMPOSIUM HELD BY THE COMMITTEE ON THE ENVIROMENTAL PROBLEMS OF THE ECOLOGICAL SOCIETY OF JAPAN : WITH SPECIAL REFERENCE TO THE SIGNIFICANCE OF BIOLOGICAL MONITORING OF ENVIRONMENT

Kiyoaki KOIDSUMI

Article type: Article
1974 Volume 24 Issue 4 Pages 260-261
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_260

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CHANGES IN THE DISTRIBUTION AND ECOLOGY OF BIRDS OWING TO THE ENVIRONMENTAL DESTRUCTION IN MOUNTAINOUS AREA : WITH SPECIAL REFERENCE TO LAGOPUS MUTUS JAPONICUS

Kenzo HANEDA

Article type: Article
1974 Volume 24 Issue 4 Pages 261-264
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_261

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ENVIRONMENTAL POLLUTION AND FISH DISEASES

Syuzo EGUSA

Article type: Article
1974 Volume 24 Issue 4 Pages 264-270
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_264

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[title in Japanese]

Article type: Appendix
1974 Volume 24 Issue 4 Pages 271-272
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_271

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[title in Japanese]

Article type: Appendix
1974 Volume 24 Issue 4 Pages 273-277
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_273

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[title in Japanese]

Article type: Bibliography
1974 Volume 24 Issue 4 Pages Misc1-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_Misc1

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[title in Japanese]

Article type: Cover
1974 Volume 24 Issue 4 Pages Cover3-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_Cover3

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[title in Japanese]

Article type: Cover
1974 Volume 24 Issue 4 Pages Cover4-
Published: December 31, 1974
Released on J-STAGE: April 11, 2017

DOIhttps://doi.org/10.18960/seitai.24.4_Cover4

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