Abstract
We explored the predictive value of common landscape characteristics for landslide vegetative stages in the Luquillo Experimental Forest of Puerto Rico using four different analyses. Maximum likelihood logistic regression showed that aspect, age, and substrate type could be used to predict vegetative structural stage. In addition it showed that the structural complexity of the vegetation was greater in landslides (1) facing the southeast (away from the dominant wind direction of recent hurricanes), (2) that were older, and (3) that had volcaniclastic rather than dioritic substrate. Multiple regression indicated that both elevation and age could be used to predict the current vegetation, and that vegetation complexity was greater both at lower elevation and in older landslides. Pearson product-moment correlation coefficients showed that (1) the presence of volcaniclastic substrate in landslides was negatively correlated with aspect, age, and elevation, (2) that road association and age were positively correlated, and (3) that slope was negatively correlated with area. Finally, principal components analysis showed that landslides were differentiated on axes defined primarily by age, aspect class, and elevation in the positive direction, and by volcaniclastic substrate in the negative direction. Because several statistical techniques indicated that age, aspect, elevation, and substrate were important in determining vegetation complexity on landslides, we conclude that landslide succession is influenced by variation in these landscape traits. In particular, we would expect to find more successional development on landslides which are older, face away from hurricane winds, are at lower elevation, and are on volcaniclastic substrate. Finally, our results lead into a hierarchical conceptual model of succession on landscapes where the biota respond first to either gradients or disturbance depending on their relative severity, and then to more local biotic mechanisms such as dispersal, predation and competition.
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References
Allen, M.F. 1991. The ecology of mycorrhizae. Cambridge studies in ecology, Cambridge University Press, Cambridge, UK.
Bazzaz, F.A. 1979. The physiological ecology of plant succession. Annual Review of Ecology and Systematics 10: 351–371.
Boose, E.R., Foster, D.R. and Fluet, M. 1994. Hurricane impacts to tropical and temperate forest landscapes. Ecological Monographs 64: 369–400.
Brown, E.T., Stallard, R.F., Larsen, M.C., Raiseck, G. M. and Yiou, F. 1995. Denudation rates determined from the accumulation of in situ produced 10Be in the Luquillo Experimental Forest, Puerto Rico. Earth and Planetary Science Letters 129: 193–202.
Clark, J.S. 1991a. Disturbance and tree life history on the shifting mosaic landscape. Ecology 72: 1102–1118.
Clark, J.S. 1991b. Disturbance and population structure on the shifting mosaic landscape. Ecology 72: 1119–1137.
Dalling, J.W. 1994. Vegetation Colonization of Landslides in the Blue Mountains, Jamaica. Biotropica 26: 392–399.
Ewel, J.J. and Whitmore, J.L. 1973. The ecological life zones of Puerto Rico and the Virgin Islands. U.S. Forest Service Research Paper ITF-18. Institute of Tropical Forestry, Rio Piedras, Puerto Rico.
Fernández, D.S. and Myster, R.W. 1995. Temporal variation and frequency distribution of photosynthetic photon flux densities on landslides in Puerto Rico. Tropical Ecology 36: 73–87.
Forman, R.T.T. and Godron, M. 1986. Landscape ecology. Wiley, New York.
Garwood, N.C., Janos, D.P. and Brokaw, N. 1979. Earthquake-caused landslides: A major disturbance to tropical forests. Science 205: 997–999.
Guariguata, M.R. 1990. Landslide disturbance and forest regeneration in the upper Luquillo mountains of Puerto Rico. Journal of Ecology 78: 814–832.
Guariguata, M.R. and Larsen, M.C. 1990. Preliminary map showing locations of landslides in El Yunque Quadrangle, Puerto Rico. U. S. Geological Survey Open File Report 89–257.
Hill, M.O. and Gauch, H.G. Jr. 1980. Detrended correspondence analysis: an improved ordination technique. Vegetatio 42: 47–58.
Kachigan, S.K. 1991. Multivariate statistical analysis: A conceptual introduction. Radius Press, New York.
Larsen, M.C. 1991. Mass movement disturbance and denudation in a humid-tropical montane forest, Puerto Rico. Geological Society of America, Abstracts with programs 23: A256.
Larsen, M.C. 1995. How wide is a road? The association of roads and mass wasting in a forested montane environment, Puerto Rico. American Geophysical Union, EOS Supplement 76: S309.
Larsen, M.C. and Simon, A. 1993. A rainfall intensity-duration threshold for landslides in a humid-tropical environment, Puerto Rico. Geografiska Annaler 75A(1–2): 13–23.
Larsen, M.C. and Torres-Sánchez, A.J. 1992. Landslides triggered by Hurricane Hugo in eastern Puerto Rico, September 1989. Caribbean Journal of Science 28: 113–125.
Larsen, M.C. and Torres-Sánchez, A.J. 1996. Climatologic, geographic and geologic factors influencing the distribution and occurrence of landslides in the Blanco, Cibuco and Coamo river basins, Puerto Rico: U.S. Geological Survey Water Resources Investigations Report 95–4029, 56 p.
Lundgren, L. 1978. Studies of soil and vegetation development on fresh landslide scars in the Western Ulugura Mountains, Tanzania. Geografiska Annaler 60: 91–127.
Myster, R.W. and Fernández, D.S. 1995. Spatial gradients and patch structure on two Puerto Rican landslides. Biotropica 27: 149–159.
Myster, R.W. and Pickett, S.T.A. 1990. Initial conditions, history and successional pathways in ten contrasting old fields. American Midland Naturalist 124: 125–133.
Myster, R.W. and L.R. Walker. in press. Plant successional pathways on Puerto Rican landslides. Journal of Tropical Ecology.
Nash, D. 1987. A comparative review of limit equilibrium methods of stability analysis. InSlope stability. pp. 11–75. Edited by M.G. Anderson and K. Richards. John Wiley and Sons, New York.
Pielou, E.C. 1984. The interpretation of ecological data: a primer on classification and ordination. Wiley, New York.
Risser, P.G. 1987. Landscape ecology: State of the art. In Landscape heterogeneity and disturbance. pp. 123–145. Edited by M.G. Turner. Ecological Studies 64. Springer-Verlag, New York.
SAS 1985. User's Guide: Statistics, Ver. 5. SAS Institute Inc. Cary, NC.
Scatena, F.N. 1989. An introduction to the physiography and history of the Bisley experimental watersheds in the Luquillo mountains of Puerto Rico. U.S. Forest Service Gen. Tech. Rep. SO–72. Southern Forest Experiment Station, New Orleans, LA, USA.
Simon, A., Larsen, M.C. and Hupp, C.R. 1990. The role of soil processes in determining mechanisms of slope failure and hillslope development in a humid-tropical forest, eastern Puerto Rico. Geomorphology 3: 263–286.
Sokal, R.R. and Rohlf, F.J. 1981. Biometry. W. H. Freeman and Company. New York.
Sousa, W.P. 1984. The role of disturbance in natural communities. Annual Review of Ecology and Systematics 15: 353–391.
Swanson, F.J., Fredriksen, R.L. and McCorison, F.M. 1982. Material transfer in a western Oregon forested watershed. InAnalysis of coniferous forest ecosystems in the Western United States. Chapter 8. Edited by R. Edmonds. US/IBP Synthesis Ser. 14. Hutchinson Ross Publishing Co., Strudsburg, PA.
Turner, M.G. 1987. Landscape heterogeneity and disturbance. Ecological studies 64. Springer-Verlag, New York, Inc.
Turner, M.G. and Dale, V.H. 1991. Modeling landscape disturbance. InQuantitative methods in landscape ecology: the analysis and interpretation of landscape heterogeneity. pp. 134–146. Edited by M.G. Turner and R.H. Gardner. Ecological studies 82. Springer-Verlag, New York.
Waide, R.B. and Lugo, A.E. 1992. A research perspective on disturbance and recovery of a tropical montane forest. In Tropical forests in transition: Ecology of natural and anthropogenic disturbance processes. pp. 173–190. Edited by J. Goldammer. Berkhauser-Verlag.
Walker, L.R. 1994. Effects of fern thickets on woodland development on landslides in Puerto Rico. Journal of Vegetation Science 5: 525–532.
Walker, L.R. and Neris, L.E. 1993. Posthurricane seed rain dynamics in Puerto Rico. Biotropica 25: 408–418.
Walker, L.R. and Boneta, W. 1995. Plant and soil responses to fire on a fern-covered landslide in Puerto Rico. Journal of Tropical Ecology 11: 473–479.
Wartenberg, D., Ferson, S. and Rohlf, F.J. 1987. Putting things in order: a critique of detrended correspondence analysis. American Naturalist 129: 434–448.
Weaver, P.L. 1990. Succession in the Elfin woodland of the Luquillo Mountains of Puerto Rico. Biotropica 22: 83–89.
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Myster, R.W., Thomlinson, J.R. & Larsen, M.C. Predicting landslide vegetation in patches on landscape gradients in Puerto Rico. Landscape Ecology 12, 299–307 (1997). https://doi.org/10.1023/A:1007942804047
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DOI: https://doi.org/10.1023/A:1007942804047