Ecological Research

, Volume 11, Issue 3, pp 311–319 | Cite as

The spatial pattern and canopy-understory association of trees in a cool temperate, mixed forest in western Japan

  • Nobuhiro Akashi
Article

Abstract

The spatial distribution pattern of trees and the association between canopy and understory individuals were examined with reference to the distribution of tree crowns in a cool temperate, mixed forest in Ohdaigahara, western Japan. Line transect and contact sampling methods were used to examine the pattern over various spatial scales. These methods are useful to detect patterns over a large study area. The dominance ofChamaecyparis obtusa on steep slopes forming large patches suggested that the distribution of this species is a consequence of landslides. UnderstoryFagus crenata showed a clumped distribution, and the relative coverage of this species was larger in canopy gaps than under a closed canopy. Understory individuals ofAbies homolepis showed a positive association with canopy trees ofF. crenata but a negative association with conspecific canopy individuals. These patterns suggested thatF. crenata regenerates in canopy gaps and is replaced byA. homolepis. The dynamics of these two species are consistent with the process of gap dynamics. The effects of both small- and large-scale disturbance must be evaluated to understand the mechanisms of patch formation and the coexistence of forest tree species.

Key words

Abies homolepis Chamaecyparis obtusa Fagus crenata reciprocal replacement spatial scale 

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References

  1. Canham C. D. &Loucks O. L. (1984) Catastrophic windthrow on the presettlement forests of Wisconsin.Ecology 65: 803–809.Google Scholar
  2. Cottam G. &Curtis J. T. (1956) the use of distance measures in phytosociological sampling.Ecology 37: 451–460.Google Scholar
  3. de Jong P., Aarssen L. W. &Turkington R. (1983) The use of contact sampling in studies of association in vegetation.Journal of Ecology 71: 545–559.Google Scholar
  4. Forcier L. K. (1975) Reproductive strategies and the co-occurrence of climax tree species.Science 189: 808–810.Google Scholar
  5. Foster D. R. (1988) Disturbance history, community organization and vegetation dynamics of the old-growth Pisgah forest, south-western New Hampshire, USA.Journal of Ecology 76: 105–134.Google Scholar
  6. Fox J. F. (1977) Alternation and coexistence of tree species.American Naturalist 111: 69–89.Google Scholar
  7. Frelich L. E., Calcote R. R., Davis M. B. &Pastor J. (1993) Patch formation and maintenance in an old-growth hemlock-hardwood forest.Ecology 74: 513–527.Google Scholar
  8. Hara M. (1983) A study of the regeneration process of a Japanese beech forest.Ecological Review 20: 115–129.Google Scholar
  9. Hibbs D. E. (1982) Gap dynamics in a hemlock-hardwood forest.Canadian Journal of Forest Research 12: 522–527.Google Scholar
  10. Hubbell S. P. (1979) Tree dispersion, abundance, and diversity in a tropical dry forest.Science 203: 1299–1309.Google Scholar
  11. Ishikawa Y. &Ito K. (1989) The regeneration process in a mixed forest in central Hokkaido, Japan.Vegetatio 79: 75–84.Google Scholar
  12. Ishizuka M. (1984) Spatial pattern of trees and their crowns in natural mixed forests.Japanese Journal of Ecology 34: 421–430.Google Scholar
  13. Lorimer C. G. (1977) The presettlement forest and natural disturbance cycle of northeastern Maine.Ecology 58: 139–148.Google Scholar
  14. Lorimer C. G. (1989) Relative effects of small and large disturbances on temperate hardwood forest structure.Ecology 70: 565–567.Google Scholar
  15. Morisita M. (1959a) Measuring of the dispersion of individual and analysis of the distribution pattern.Memoirs of the Faculty of Science, Kyushu University. Ser. E, Biology 2: 215–235.Google Scholar
  16. Morisita M. (1959b) Measuring of interspecific association and similarity between communities.Memoirs of the Faculty of Science, Kyushu University. Ser. E, Biology 3: 65–80.Google Scholar
  17. Mueller-Dombois D. &Ellenberg H. (1974)Aims and Methods of Vegetation Ecology. John Wiley & Sons, New York.Google Scholar
  18. Nakamura F. (1990) Perspectives for the effects of geomorphic processes.Biological Science 42: 57–67 (in Japanese).Google Scholar
  19. Nakashizuka T. (1987) Regeneration dynamics of beech forests in Japan.Vegetatio 69: 169–175.CrossRefGoogle Scholar
  20. Nakashizuka T. (1988) Regeneration of beech (Fagus crenata) after the simultaneous death of undergrowing dwarf bamboo (Sasa kurilensis).Ecological Research 3: 21–35.CrossRefGoogle Scholar
  21. Nakashizuka T. (1989) Role of uprooting in composition and dynamics of an old-growth forest in Japan.Ecology 70: 1273–1278.Google Scholar
  22. Nakashizuka T. (1991) Population dynamics of coniferous and broad-leaved trees in a Japanese temperate mixed forest.Journal of Vegetation Science 2: 413–418.Google Scholar
  23. Nakashizuka T. &Kohyama T. (1995) The significance of the asymmetric effect of crowding for coexistence in a mixed temperate forest.Journal of Vegetation Science 6: 509–516.Google Scholar
  24. Nakashizuka T. &Numata M. (1982) Regeneration process of climax beech forests. I. Structure of a beech forest with the undergrowth ofSasa.Japanese Journal of Ecology 32: 57–67.Google Scholar
  25. Pickett S. T. A. &White A. S., eds (1985)The Ecology of Natural Disturbance and Patch Dynamics. Academic Press, Orlando.Google Scholar
  26. Runkle J. R. (1981) Gap regeneration in some old-growth forests of the eastern United States.Ecology 62: 1041–1051.Google Scholar
  27. Runkle J. R. (1982) Patterns of disturbance in some old-growth mesic forests of eastern North America.Ecology 63: 1533–1546.Google Scholar
  28. Sekine T. &Sato H. (1992) Tree barking by Sika deer,Cervus nippon Temminck, on Mt Odaigahara.Japanese Journal of Ecology 42: 241–248 (in Japanese with English summary).Google Scholar
  29. Suganuma T. &Tsuruta M. (1975)The Nature of Ohdaigahara and Osugidani. Nakanishiya Shuppan, Kyoto (in Japanese).Google Scholar
  30. Suzuki E. (1979) Regeneration ofTsuga sieboldii forest. I. Dynamics of development of a mature stand revealed by stem analysis data.Japanese Journal of Ecology 29: 375–386 (in Japanese with English summary).Google Scholar
  31. Tagawa H. (1963) Investigation of pattern in plant communities. I. Pattern inCarex kobomugi Ohwi population.Japanese Journal of Ecology 13: 10–15.Google Scholar
  32. Takatsuki S. &Gorai T. (1994) Effects of Sika deer on the regeneration of aFagus crenata forest on Kinkazan, northern Japan.Ecological Research 9: 115–120.Google Scholar
  33. Woods K. D. (1979) Reciprocal replacement and the maintenance of codominance in a beech-maple forest.Oikos 33: 31–39.Google Scholar
  34. Woods K. D. (1984) Patterns of tree replacement: canopy effects on understory pattern in hemlock-northern hardwood forests.Vegetatio 56: 87–107.Google Scholar
  35. Yamamoto S. (1993) Seedling establishment ofChamaecyparis obtusa in different microenvironments in the Akasawa Forest Reserve, central Japan.Journal of the Japanese Forestry Society 75: 519–527.Google Scholar

Copyright information

© Ecological Society of Japan 1996

Authors and Affiliations

  • Nobuhiro Akashi
    • 1
  1. 1.Center for Ecological ResearchKyoto UniversityKyotoJapan

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