Abstract
The effects of dwarf bamboos (Sasa spp.) on the regeneration of trees in a natural hardwood forest were studied by analysing the spatial dispersion of seedlings and saplings of anemochores (Acer palmatum var. matsumurae, Fraxinus lanuginosa, and Carpinus laxiflora) and zoochores (Quercus mongolica var. grosseserrata and Q. serrata). Relative photosynthetic photon flux density at 10 cm above ground was significantly correlated with the coverage of dwarf bamboos (r=0.661, P<0.001). Seedlings were abundant and were randomly distributed in the anemochores, other than the shade-intolerant species C. laxiflora which was significantly more sparse in sites with dense Sasa than in sites where Sasa was rare. Distribution of saplings was also random in the shadetolerant anemochores A. palmatum var. matsumurae and F. lanuginosa but aggregated in sites with sparse Sasa in the shade-intolerant anemochore C. laxiflora. In contrast to the anemochores, seedlings of zoochores were very few and were distributed in sites with sparse Sasa. Saplings were also aggregated and negatively correlated with Sasa cover in the shade-intolerant species Q. serrata and the tolerant species Q. mongolica var. grosseserrata. The acorns put on the forest floor in a site with dense Sasa were quickly removed by small rodents such as Apodemus speciosus and A. argenteus. Trap census of rodents revealed that those mammals prefer the dense Sasa habitat to the sparse Sasa habitat. This suggests that the dwarf bamboos strongly affect the regeneration of zoochorous trees not only by shading the seedlings but also by providing habitats to acorn-feeding small mammals.
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References
Borchert MI, Davis FW, Michaelsen J, Oyler LN (1989) Interactions of factors affecting seedling recruitment of blue oak (Quercus douglasii) in California. Ecology 70:389–404
Facelli JM, Pickett ST (1991) Plant litter: Light interception and effects on an old-field plant community. Ecology 72:1024–1031
Kawahara T, Sato A (1977) Studies on the Sasa communities (I). On the seasonal change of biomass and the litter fall of Pleioblastus chino (in Japanese). J Jpn For Soc 59:225–227
Kikuzawa K (1988) Dispersal of Quercus mongolica acorns in a broadleaved deciduous forest. 1. Disappearance. For Ecol Manage 25:1–8
Koike T (1986) Photosynthetic responses to light intensity of deciduous broad-leaved tree seedlings raised under various artificial shade. Environ Control Biol 24:51–58
Koike T (1988) Leaf structure and photosynthetic performance as related to the forest succession of deciduous broad-leaved trees. Plant Species Biol 3:77–87
Kondo N (1980) Seasonal fluctuation of population size, activity and activity area of Apodemus speciosus ainu (Thomas) in a small stand (in Japanese with English summary). J Mammal Soc Jpn 8:129–138
Kudo H (1984) Natural withering of Sasa kurilensis and regeneration of trees (in Japanese with English summary). Res Bull Coll Experiment For Hokkaido University 42:899–908
Maeda M, Igarashi B, Mizushima T (1984) Food. In: Ota K (ed) Study on wild murid rodents in Hokkaido (in Japanese). Hokkaido University Press, Sapporo, pp 119–138
Maeda T, Miyakawa K (1971) New sylvicultural techniques for natural regeneration of beech forests (in Japanese). In: Yanagisawa T (ed) New sylvicultural techniques for natural regeneration. Sobun, Tokyo, pp 179–252
Maruyama K (1990) Effects of shading on the growth of Fagus crenata, Quercus crispula and Q. serrata seedlings. Proceedings IUFRO XIX World Congress 2:563
Miyaki M, Kikuzawa K (1988) Dispersal of Quercus mongolica acorns in a broadleaved deciduous forest. 2. Scatterhoarding by mice. For Ecol Manage 25:9–16
Monsi M, Oshima Y (1955) A theoretical analysis of the succession process of plant community, based upon the production of matter. Jpn J Bot 15:60–82
Nakashizuka T (1987) Regeneration dynamics of beech forests in Japan. Vegetatio 69:169–175
Nakashizuka T (1988) Regeneration of beech (Fagus crenata) after the simultaneous death of undergrowing dwarf bamboo (Sasa kurilensis). Ecol Res 3:21–35
Numata M (1970) Conservation implications of bamboo flowering and death in Japan. Biol Conserv 2:227–229
Ota K, Abe H, Kobayashi T, Hujimaki Y, Higuchi S, Igarashi S, Kuwahara T, Maeda M, Ueda M, Takayasu T (1977) A synecological study of murid rodents (in Japanese with English summary). Res Bull College Experiment For Hokkaido University 34:119–159
Sakai A (1976) Adaptation of plants to deposited snow (in Japanese with English summary). Contrib Inst Low Temp Sci Ser B 34:47–76
Sork VL (1984) Examination of seed dispersal and survival in red oak, Quercus rubra (Fagaceae), using metal-tagged acorns. Ecology 65:1020–1022
Sydes C, Grime JP (1981) Effects of tree leaf litter on herbaceous vegetation in deciduous woodland. I. Field investigations. J Ecol 69:237–248
Sydes C, Grime JP (1981) Effects of tree leaf litter on herbaceous vegetation in deciduous woodland. II. An experimental investigation. J Ecol 69:249–262
Uemura S (1989) Snowcover as a factor controlling the distribution and speciation of forest plants. Vegetatio 82:127–137
Watt AS (1934) The vegetation of the Chiltern Hills, with special reference to the beech woods and their seral relationships. J Ecol 22:230–270, 445–507
Watt AS (1947) Pattern and process in the plant community. J Ecol 35:1–22
Whitmore TC (1975) Tropical rainforests of the Far East. Clarendon Press, Oxford
Wood OM (1938) Seedling reproduction of oak in southern New Jersey. Ecology 19:276–293
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Wada, N. Dwarf bamboos affect the regeneration of zoochorous trees by providing habitats to acorn-feeding rodents. Oecologia 94, 403–407 (1993). https://doi.org/10.1007/BF00317116
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DOI: https://doi.org/10.1007/BF00317116