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The effect of treefall gaps on the understorey structure and composition of the tropical dry forest of Nizanda, Oaxaca, Mexico: implications for forest regeneration

  • Yanus A. Dechnik-Vázquez (a1), Jorge A. Meave (a1), Eduardo A. Pérez-García (a1), José A. Gallardo-Cruz (a1) and Marco Antonio Romero-Romero (a1)...


The role of canopy gaps in tropical dry forest (TDF) dynamics remains unclear. Here, 75 canopy gaps, mostly formed by the fall of Bursera spp. and Pachycereus pecten-aboriginum individuals, are described, and their potential consequences for forest regeneration are analysed in a Mexican TDF. In 50 randomly selected gaps, understorey vegetation was sampled with a paired design (inside and outside gaps) and by distinguishing two plant height categories. In total, 1940 plants were recorded (63% in gaps and 37% in non-gap plots). Community attributes (density, community cover, taxonomic richness and Shannon diversity) were significantly higher for both height categories in gap plots. Conversely, neither an NMDS ordination nor a multinomial classification of 187 species by habitat affinities revealed floristic segregation between gaps and non-gaps; almost all species were classified as habitat generalists, with only a few opportunistic forbs (but no single tree species) being classified as gap specialists. The most important effects of gap formation are significant increases in plant abundance and species richness, but not a different species composition. Against earlier views that gap-phase dynamics is inconsequential for TDF dynamics, these results suggest a more active, albeit modest, role of treefall gaps in TDF, through promoting an abundant establishment.


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BAKER, P. J., BUNYAVEJCHEWIN, S., OLIVER, C. D. & ASHTON, P. S. 2005. Disturbance history and historical stand dynamics of a seasonal tropical forest in western Thailand. Ecological Monographs 75:317‒343.
BONGERS, F., POORTER, L., HAWTHORNE, W. D. & SHEIL, D. 2009. The intermediate disturbance hypothesis applies to tropical forests, but disturbance contributes little to tree diversity. Ecology Letters 12:798805.
BRENNAN, M. J., COBB, H. D. & KNABB, R. D. 2010. Observations of Gulf of Tehuantepec gap wind events from QuikSCAT: an updated event climatology and operational model evaluation. Weather and Forecasting 25:646658.
BROKAW, N. V. L. 1985a. Treefalls, regrowth, and community structure in tropical forests. Pp. 5369 in Pickett, S. T. A. & White, P.S. (eds.). The ecology of natural disturbance and patch dynamics. Academic Press, San Diego.
BROKAW, N. V. L. 1985b. Gap-phase regeneration in a tropical forest. Ecology 66:682687.
BROUWER, L. C. 1996. Nutrient cycling in pristine and logged tropical rain forest: a study in Guyana. The Tropenbos Foundation, Wageningen. 224 pp.
BROWN, N. 1993. The implications of climate and gap microclimate for seedling growth conditions in a Bornean lowland rain forest. Journal of Tropical Ecology 9:153168.
BULLOCK, S. H. 1986. Climate of Chamela, Jalisco, and trends in the south coastal region of Mexico. Archives for Meteorology, Geophysics, and Bioclimatology 36:297316.
CANHAM, C. D., DENSLOW, J. S., PLATT, W. J., RUNKLE, J. R., SPIES, T. A. & WHITE, P. S. 1990. Light regimes beneath closed canopies and tree-fall gaps in temperate and tropical forests. Canadian Journal of Forest Research 20:620631.
CHAVE, J., COOMES, D. A., JANSEN, S., LEWIS, S. L., SWENSON, N. G. & ZANNE, A. E. 2009. Towards a worldwide wood economics spectrum. Ecology Letters 12:351366.
CHAZDON, R. L. & FETCHER, N. 1984. Photosynthetic light environments in a lowland tropical rain forest in Costa Rica. Journal of Ecology 72:553564.
CHAZDON, R. L., PEARCY, R. W., LEE, D. W. & FETCHER, N. 1996. Photosynthetic responses of tropical forest plants to contrasting light environments. Pp. 555 in Mulkey, S. S., Chazdon, R. L. & Smith, A. P. (eds). Tropical forest plant ecophysiology. Chapman and Hall, New York.
CHAZDON, R. L., CHAO, A., COLWELL, R. K., LIN, S.-Y., NORDEN, N., LETCHER, S. G., CLARK, D. B., FINEGAN, B. & ARROYO, J. P. 2011. A novel statistical method for classifying habitat generalists and specialists. Ecology 92:13321343.
DENSLOW, J. S. 1985. Disturbance-mediated coexistence of species. Pp. 307323 in Pickett, S. T. A. & White, P. S. (eds.). The ecology of natural disturbance and patch dynamics. Academic Press, San Diego.
DENSLOW, J. S. 1987. Tropical rainforest gaps and tree species diversity. Annual Review of Ecology and Systematics 18:431451.
DICKINSON, M. B., HERMANN, S. M. & WHIGHAM, D. F. 2001. Low rates of background canopy-gap disturbance in a seasonally dry forest in the Yucatan Peninsula with a history of fires and hurricanes. Journal of Tropical Ecology 17:895902.
DITTUS, W. P. 1985. The influence of cyclones on the dry evergreen forest of Sri Lanka. Biotropica 17:114.
DUNPHY, B. K., MURPHY, P. G. & LUGO, A. E. 2000. The tendency for trees to be multiple-stemmed in tropical and subtropical dry forests: studies of Guanica forest, Puerto Rico. Tropical Ecology 41:161167.
DURÁN, E. 2004. Estructura, diversidad y mortalidad del componente arbóreo en un mosaico ambiental de Chamela, México. Ph.D. Dissertation. Universidad Nacional Autónoma de México, Mexico City, 135 pp.
FRANKLIN, J. F., SHUGART, H. H. & HARMON, M. E. 1987. Tree death as an ecological process. BioScience 37:550556.
GALLARDO-CRUZ, J. A., MEAVE, J. A. & PÉREZ-GARCÍA, E. A. 2005. Estructura, composición y diversidad de la selva baja caducifolia del Cerro Verde, Nizanda (Oaxaca), México. Boletín de la Sociedad Botánica de México 76:1935.
GALLARDO-CRUZ, J. A., MEAVE, J. A., PÉREZ-GARCÍA, E. A. & HERNÁNDEZ-STEFANONI, J. L. 2010. Spatial structure of plant communities in a complex tropical landscape: implications for β-diversity. Community Ecology 11:202210.
GRAVEL, D., CANHAM, C. D., BEAUDET, M. & MESSIER, C. 2010. Shade tolerance, canopy gaps and mechanisms of coexistence of forest trees. Oikos 119:475484.
HUBBELL, S. P., FOSTER, R. B., O'BRIEN, S. T., HARMS, K. E., CONDIT, R., WECHSLER, B., WRIGHT, S. J. & LOO DE LAO, S. 1999. Light-gap disturbances, recruitment limitation, and tree diversity in a neotropical forest. Science 283:554557.
IMBERT, D., LABBE, P. & ROUSTEAU, A. 1996. Hurricane damage and forest structure in Guadeloupe, French West Indies. Journal of Tropical Ecology 12:663680.
JANSEN, P. A., VAN DER MEER, P. J. & BONGERS, F. 2008. Spatial contagiousness of canopy disturbance in tropical rain forest: and individual-tree-based test. Ecology 89:34903502.
JARAMILLO, O. A. & BORJA, M. A. 2004. Wind speed analysis in La Ventosa, Mexico: a bimodal probability distribution case. Renewable Energy 29:16131630.
JETTEN, V. G. 1994. Modelling the effects of logging on the water balance of a tropical rain forest: a study in Guyana. The Tropenbos Foundation, Wageningen. 213 pp.
KELLNER, J. R., CLARK, D. B. & HUBBELL, S. P. 2009. Pervasive canopy dynamics produce short-term stability in a tropical rain forest landscape. Ecology Letters 12:155164.
KENT, M. & COKER, P. 1994. Vegetation description and data analysis: a practical approach. John Wiley & Sons, Chichester.
LEBRIJA-TREJOS, E., BONGERS, F., PÉREZ-GARCÍA, E. A. & MEAVE, J. A. 2008. Successional change and resilience of a very dry tropical deciduous forest following shifting agriculture. Biotropica 40:422431.
LEBRIJA-TREJOS, E., PÉREZ-GARCIA, E. A., MEAVE, J. A., BONGERS, F. & POORTER, L. 2010. Functional traits and environmental filtering drive community assembly in a species-rich tropical system. Ecology 91:386398.
LEBRIJA-TREJOS, E., PÉREZ-GARCÍA, E. A., MEAVE, J. A., POORTER, L. & BONGERS, F. 2011. Environmental changes during secondary succession in a tropical dry forest in Mexico. Journal of Tropical Ecology 27:477489.
LEE, D. W. 1989. Canopy dynamics and light climates in a tropical moist deciduous forest in India. Journal of Tropical Ecology 5:6579.
LEWIS, R. J. & BANNAR-MARTIN, K. H. 2012. The impact of cyclone Fanele on a tropical dry forest in Madagascar. Biotropica 44:135140.
LIEBERMAN, M., LIEBERMAN, D., PERALTA, R. & HARTSHORN, G. S. 1995. Canopy closure and the distribution of tropical forest tree species at La Selva, Costa Rica. Journal of Tropical Ecology 11:161177.
LIN, T. C., HAMBURG, S. P., LIN, K. C., WANG, L. J., CHANG, C. T., HSIA, Y. J., VADEBONCOEUR, M. A., MCMULLEN, C. M. M. & LIU, C. P. 2011. Typhoon disturbance and forest dynamics: lessons from a Northwest Pacific subtropical forest. Ecosystems 14:127143.
LUGO, A. E. 2008. Visible and invisible effects of hurricanes on forest ecosystems: an international review. Austral Ecology 33:368398.
MAASS, J. M., BALVANERA, P., CASTILLO, A., DAILY, G. C., MOONEY, H. A., EHRLICH, P., QUESADA, M., MIRANDA, A., JARAMILLO, V. J., GARCÍA-OLIVA, F., MARTÍNEZ-YRIZAR, A., COTLER, H., LÓPEZ-BLANCO, J., PÉREZ-JIMÉNEZ, A., BÚRQUEZ, A., TINOCO, C., CEBALLOS, G., BARRAZA, L., AYALA, R. & SARUKHÁN, J. 2005. Ecosystem services of tropical dry forests: insights from long-term ecological and social research on the Pacific Coast of Mexico. Ecology and Society 10:art. 17.
MAGURRAN, A. E. 2004. Measuring biological diversity. Blackwell Science, Malden, 256 pp.
MCLAREN, K. P. & MCDONALD, M. A. 2003. The effects of moisture and shade on seed germination and seedling survival in a tropical dry forest in Jamaica. Forest Ecology and Management 183:6175.
MONTGOMERY, R. A. & CHAZDON, R. L. 2002. Light gradient partitioning by tropical tree seedling in the absence of canopy gaps. Oecologia 131:165174.
MUELLER-DOMBOIS, D. & GOLDAMMER, J. G. 1990. Fire in tropical ecosystems and global environmental change: an introduction. Pp. 110 in Goldammer, J. G. (ed.). Fire in the tropical biota. Springer-Verlag, Berlin.
MURPHY, P. G. & LUGO, A. E. 1986. Ecology of tropical dry forest. Annual Review of Ecology and Systematics 17:6788.
MUSCOLO, A., BAGNATO, S., SIDARI, M. & MERCURIO, R. 2014. A review of the roles of forest canopy gaps. Journal of Forestry Research 25:725736.
NICOTRA, A. B., CHAZDON, R. L. & IRIARTE, S. V. B. 1999. Spatial heterogeneity of light and woody seedling regeneration in tropical wet forests. Ecology 80:19081926.
PAZ, H., PINEDA-GARCÍA, F. & PINZÓN-PÉREZ, L. F. 2015. Root depth and morphology in response to soil drought: comparing ecological groups along the secondary succession in a tropical dry forest. Oecologia 179:551561.
PEARSON, T. R. H., BURSLEM, D. F. R. P., MULLINS, C. E. & DALLING, J. W. 2002. Germination ecology of neotropical pioneers: interacting effects of environmental conditions and seed size. Ecology 83:27982807.
PENNINGTON, R. T., LAVIN, M. & OLIVEIRA-FILHO, A. 2009. Woody plant diversity, evolution, and ecology in the tropics: perspectives from seasonally dry tropical forests. Annual Review of Ecology, Evolution, and Systematics 40:437457.
PÉREZ-GARCÍA, E. A., MEAVE, J. & GALLARDO, C. 2001. Vegetación y flora de la región de Nizanda, Istmo de Tehuantepec, Oaxaca, México. Acta Botanica Mexicana 56:1988.
PÉREZ-GARCÍA, E. A., MEAVE, J. A., VILLASEÑOR, J. L., GALLARDO-CRUZ, J. A. & LEBRIJA-TREJOS, E. E. 2010. Vegetation heterogeneity and life-strategy diversity in the flora of the heterogeneous landscape of Nizanda, Oaxaca, Mexico. Folia Geobotanica 45:143161.
PETERSON, C. J. & PICKETT, S. T. A. 1995. Forest reorganization: a case study in an old-growth forest catastrophic blowdown. Ecology 76:763774.
POPMA, J., BONGERS, F., MARTÍNEZ-RAMOS, M. & VENEKLAAS, E. 1988. Pioneer species distribution in treefall gaps in Neotropical rain forests: a gap definition and its consequences. Journal of Tropical Ecology 4:7788.
PUTZ, F. E., COLEY, P. D., LU, K., MONTALVO, A. & AIELLO, A. 1983. Uprooting and snapping of trees: structural determinants and ecological consequences. Canadian Journal of Forest Research 13:10111020.
QUIGLEY, M. F. & PLATT, W. J. 2003. Composition and structure of seasonally deciduous forests in the Americas. Ecological Monographs 73:87106.
REILLY, A. E. 1991. The effects of Hurricane Hugo in three tropical forests in the US Virgin Islands. Biotropica 23:414419.
RICHARDS, P. W. 1996. The tropical rain forest: an ecological study. (Second edition). Cambridge University Press, Cambridge. 575 pp.
RINCÓN, E. & HUANTE, P. 1993. Growth responses of tropical deciduous tree seedlings to contrasting light conditions. Trees – Structure and Function 7:202207.
ROMERO-DUQUE, L. P., JARAMILLO, V. J. & PÉREZ-JIMÉNEZ, A. 2007. Structure and diversity of secondary tropical dry forests in Mexico, differing in their prior land-use history. Forest Ecology and Management 253:3847.
RÜGER, N., HUTH, A., HUBBELL, S. P. & CONDIT, R. 2009. Response of recruitment to light availability across a tropical lowland rain forest community. Journal of Ecology 97:13601368.
RÜGER, N., BERGER, U., HUBBELL, S. P., VIEILLEDENT, G. & CONDIT, R. 2011. Growth strategies of tropical tree species: disentangling light and size effects. PLoS ONE 6(9):e25330.
RÜGER, N., WIRTH, C., WRIGHT, S. J. & CONDIT, R. 2012. Functional traits explain light and size response of growth rates in tropical tree species. Ecology 93:26262636.
SAGAR, R., PANDEY, A. & SINGH, J. S. 2012. Composition, species diversity, and biomass of the herbaceous community in dry tropical forest of northern India in relation to soil moisture and light intensity. Environmentalist 32:485493.
SAYNES, V., HIDALGO, C., ETCHEVERS, J. D. & CAMPO, J. E. 2005. Soil C and N dynamics in primary and secondary seasonally dry tropical forests in Mexico. Applied Soil Ecology 29:282-289.
SCHLIEMANN, S. A. & BOCKHEIM, J. G. 2011. Methods for studying treefall gaps: a review. Forest Ecology and Management 261:11431151.
SCHNITZER, S. A. & CARSON, W. P. 2001. Treefall gaps and the maintenance of species diversity in a tropical forest. Ecology 82:913919.
SCHRECK, C. J., KNAPP, K. R. & KOSSIN, J. P. 2014. The impact of best track discrepancies on global tropical cyclone climatologies using IBTrACS. Monthly Weather Review 142:38813899.
SWAINE, M. D., LIEBERMAN, D. & HALL, J. B. 1990. Structure and dynamics of a tropical dry forest in Ghana. Vegetatio 88:3151.
URIARTE, M., CANHAM, C. D., THOMPSON, J., ZIMMERMAN, J. K., MURPHY, L., SABAT, A. M., FETCHER, N. & HAINES, B. L. 2009. Natural disturbance and human land use as determinants of tropical forest dynamics: results from a forest simulator. Ecological Monographs 79:423443.
VAN BLOEM, S. J., MURPHY, P. G. & LUGO, A. E. 2007. A link between hurricane-induced tree sprouting, high stem density and short canopy in tropical dry forest. Tree Physiology 27:475480.
VAN DER MEER, P. J., BONGERS, F., CHATROU, L. & RIÉRA, B. 1994. Defining canopy gaps in a tropical rain forest: effects on gap size and turnover time. Acta Oecologica 15:701714.
VÁZQUEZ-YANES, C. & OROZCO-SEGOVIA, A. 1993. Patterns of seed longevity and germination in the tropical rainforest. Annual Review of Ecology and Systematics 24:6987.
VIEIRA, D. L. M. & SCARIOT, A. 2006. Principles of natural regeneration of tropical dry forests for restoration. Restoration Ecology 14:1120.
WALKER, L. R. 1991. Tree damage and recovery from Hurricane Hugo in Luquillo experimental forest, Puerto Rico. Biotropica 23:379385.
WHIGHAM, D. F., OLMSTED, I., CABRERA-CANO, E. & HARMON, M. E. 1991. The impact of Hurricane Gilbert on trees, litterfall, and woody debris in a dry tropical forest in the northeastern Yucatan Peninsula. Biotropica 23:434441.
WHIGHAM, D. F., DICKINSON, M. B. & BROKAW, N. V. L. 1999. Background canopy gap and catastrophic wind disturbances in tropical forests. Pp. 223252 in Walker, L. R. (ed.). Ecosystems of disturbed ground. Elsevier Science, Amsterdam.
WHITE, P. S. 1979. Pattern, process and natural disturbance in vegetation. The Botanical Review 45:229299.
WRIGHT, S. J., MULLER-LANDAU, H. C., CONDIT, R. & HUBBELL, S. P. 2003. Gap-dependent recruitment, realized vital rates, and size distributions of tropical trees. Ecology 84:31743185.
ZAR, J. H. 1999. Biostatistical analysis. Prentice-Hall, Upper Saddle River. 663 pp.
ZHU, J., LU, D. & ZHANG, W. 2014. Effects of gaps on regeneration of woody plants: a meta-analysis. Journal of Forestry Research 25:501510.
ZIMMERMAN, J. K., EVERHAM, E. M., WAIDE, R. B., LODGE, D. J., TAYLOR, C. M. & BROKAW, N. V. L. 1994. Responses of tree species to hurricane winds in subtropical wet forest in Puerto Rico: implications for tropical tree life histories. Journal of Ecology 82:911922.


The effect of treefall gaps on the understorey structure and composition of the tropical dry forest of Nizanda, Oaxaca, Mexico: implications for forest regeneration

  • Yanus A. Dechnik-Vázquez (a1), Jorge A. Meave (a1), Eduardo A. Pérez-García (a1), José A. Gallardo-Cruz (a1) and Marco Antonio Romero-Romero (a1)...


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