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Seedling/Sapling Banks and Their Responses to Forest Disturbance

  • Shin Abe
Part of the Ecological Studies book series (ECOLSTUD, volume 158)

Abstract

Although all the trees that compose a mature forest originate as seedlings on the forest floor, the composition of a seedling or sapling community of ten differs from that of the adult trees. While this discrepancy may signal a shift or fluctuation in the forest (see Chapter 6), it can be attributed to demographic behaviors of each species (e.g., Harcombe 1987; Aiba and Kohyama 1997). To understand the maintenance mechanisms of a forest community, or to predict the forest dynamics, we must consider the seedling and sapling stages, since they, as well as the seed stage, are the stages subject to drastic demographic changes (see Chapter 1). Following on the previous chapters of this volume on seed production (Chapter 9), dispersal (Chapter 10), and dormancy and germination (Chapter 11), I describe the young tree community in Ogawa Forest Reserve (OFR) in this chapter, especially as it relates to forest disturbances.

Keywords

Relative Growth Rate Closed Canopy Sapling Density Conspecific Adult Shannon Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Abe S (1996) Life cycle and estimation of gap dependency for Styrax obassia, a sub-canopy tree species (in Japanese). Ph.D. dissertation, The University of Tokyo, TokyoGoogle Scholar
  2. Abe S, Nakashizuka T, Masaki T (1995) Factors influencing sapling composition in canopy gaps of a temperate deciduous forest. Vegetatio 120:21–32Google Scholar
  3. Abe S, Nakashizuka T, Tanaka H (1998) Effects of canopy gaps on the demography of the subcanopy tree Styrax obassia. J Veg Sci 9:787–796CrossRefGoogle Scholar
  4. Aiba I, Kohyama T (1997) Crown architecture and life-history traits of 14 tree species in a warm-temperate rain forest: significance of spatial heterogeneity. J Ecol 85:611–624CrossRefGoogle Scholar
  5. Brokaw NVL (1985a) Treefalls, regrowth, and community structure in tropical forests. In: Pickett STA, White PS (eds) The ecology of natural disturbance and patch dynamics. Academic, Orlando, Florida, pp 53–69CrossRefGoogle Scholar
  6. Brokaw NVL (1985b) Gap-phase regeneration in a tropical forest. Ecology 66:682–687CrossRefGoogle Scholar
  7. Brokaw NVL, Scheiner SM (1989) Species composition in gaps and structure of a tropical forest. Ecology 70:538–541CrossRefGoogle Scholar
  8. Canham CD (1989) Different responses to gaps among shade-tolerant tree species. Ecology 70:548–550CrossRefGoogle Scholar
  9. Clark DA, Clark DB (1984) Spacing dynamics of a tropical rain forest tree: evaluation of the Janzen-Connel model. Am Nat 124:769–788CrossRefGoogle Scholar
  10. Ehrenfeld JG (1980) Understory response to canopy gaps of varying size in a mature oak forest. Bull Torrey Bot Club 107:29–41CrossRefGoogle Scholar
  11. Goldblum D (1997) The effect of treefall gaps on understory vegetation in New York State. J Veg Sci 8:125–132CrossRefGoogle Scholar
  12. Grey AN, Spies TA (1997) Microsite controls on tree seedling establishment in conifer forest canopy gaps. Ecology 78:2458–2473CrossRefGoogle Scholar
  13. Hara M (1987) Analysis of seedling banks of a climax beech forest: ecological importance of seedling sprouts. Vegetatio 71:67–74Google Scholar
  14. Harcombe PA (1987) Tree life tabie. Simple birth, growth, and death data encapsulate life histories and ecological roles. Bioscience 37:557–568CrossRefGoogle Scholar
  15. Kransy ME, Whitmore MC (1991) Gradual and sudden forest canopy gaps in Allegheny northem hardwood forest. Can J For Res 20:659–667Google Scholar
  16. Kupfer JA, Runkle JR (1996) Early gap successional pathways in a Fagus-Acer forest preserve: pattem and determinants. J Veg Sci 7:247–256CrossRefGoogle Scholar
  17. Lee DW, Oberbauer SF, Krishnapilay B, Mansor M, Mohamad H, Yap SK (1997) Effects of irradiance and spectral quality on seedling development of two Southeast Asian Hopea species. Oecologia 110: 1–9CrossRefGoogle Scholar
  18. Masaki T, Suzuki W, Niiyama K, Iida S, Tanaka H, Nakashizuka T (1992) Community structure of a species-rich temperate forest, Ogawa Forest Reserve, central Japan. Vegetatio 98:97–111CrossRefGoogle Scholar
  19. Nakashizuka T, Iida S (1995) Composition, dynamics and disturbance regime of temperate deciduous forests in Monsoon Asia. Vegetatio 121:23–30CrossRefGoogle Scholar
  20. Nakashizuka T, Iida S, Tanaka H, Shibata M, Abe S, Masaki T, Niiyama K (1992) Community dynamics of Ogawa Forest Reserve, a species-rich deciduous forest, central Japan. Vegetatio 103: 105–112Google Scholar
  21. Orwig DA, Abrams MD (1995) Dendroecological and ecophysiological analysis of gap environments in mixed-oak understoreys ofnorthem Virginia. Funct Ecol 9:799–806CrossRefGoogle Scholar
  22. Poulson TL, Platt WJ (1989) Gap light regimes influence canopy tree diversity. Ecology 70:553–555CrossRefGoogle Scholar
  23. Putz FE, Canham CD (1992) Mechanisms of arrested succession in shrublands: root and shoot competition between shrubs and tree seedlings. For Ecol Manag 49:267–275CrossRefGoogle Scholar
  24. Rebertus AJ, Veblen TT (1993) Structure and tree-fall gap dynamics of old-growth Nothof agus forests in Tierra del Fuego, Argentina. J Veg Sci 4:641–654CrossRefGoogle Scholar
  25. Runkle JR (1985) Disturbance regimes in temperate forests. In: Pickett STA, White PS (eds) The ecology of natural disturbance and patch dynamics. Academic, Orlando, Florida, pp 17–33CrossRefGoogle Scholar
  26. Spies TA, Franklin JF (1989) Gap characteristics and vegetation response in coniferous forests of the pacific northwest. Ecology 70:543–545CrossRefGoogle Scholar
  27. Swaine MD, Whitmore TC (1988) On the definition of ecological species groups in tropical rain forests. Vegetatio 75:81–86CrossRefGoogle Scholar
  28. Tanaka H (1995) Seed demography of three co-occurring Acer species in a Japanese temperate deciduous forest. J Veg Sci 6:887–896CrossRefGoogle Scholar
  29. Uhl C, Clark K, Dezzeo N, Maquino P (1988) Vegetation dynamics in Amazonian treefall gaps. Ecology 69:751–763CrossRefGoogle Scholar
  30. van der Maarel E (1996) Pattem and process in the plant community: Fifty years after A.S. Watt. J Veg Sci 7: 19–28CrossRefGoogle Scholar
  31. Veblen TT (1989) Tree regeneration response to gaps along a transandean gradient. Ecology 70:541–543CrossRefGoogle Scholar
  32. Welden CW, Hewett SW, Hubbell SP, Foster RB (1991) Sapling survival, growth, and recruitment: relationship to canopy height in a neotropical forest. Ecology 72:35–50CrossRefGoogle Scholar
  33. White PS, Pickett STA (1985) Natural disturbance and patch dynamics: an introduction. In: Pickett STA, White PS (eds) The ecology of natural disturbance and patch dynamics. Academic, Orlando, Florida, pp 3–16CrossRefGoogle Scholar
  34. Whitmore TC (1982) On patt-m and process in forests. In: Newman EI (ed) The plant community as a working mechanism. Blackwell, Oxford, pp 45–59Google Scholar
  35. Whitmore TC (1989) Canopy gaps and the two major groups of forest trees. Ecology 70:536–538CrossRefGoogle Scholar

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© Springer Japan 2002

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  • Shin Abe

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