Robin Chazdon department: ecology and evolutionary biology
email: robin.chazdon"at"uconn.edu
office: biology/pharmacy 205C
phone: 860.486.4057
fax: 860.486.6364
Download Curriculum Vitae
Department of Ecology and Evolutionary Biology Website

“Tropical forest ecology and regeneration, biodiversity conservation and restoration of tropical forests, tropical second-growth forest dynamics, biodiversity conservation in agricultural landscapes of Mesoamerica, socio-ecological systems.”

AwardsStar
Honors Faculty of the Year, 2005
Provost's Award for Excellence in Research, 2004
President's Medal, British Ecological Society, 2003
Fulbright Senior Scholar, 2002
CoursesBook
ResearchProjects
Neoselvas
NeoSelvas Project
Visit Site

This project unites four existing projects in wet tropical forests of Latin America. Coordinated annual vegetation censuses in long-term study plots will be conducted to test specific chronosequence predictions for a range of dependent variables. Our collaborative project began in 2007 and is funded for 5 years by the US National Science Foundation.

Neoselvas
Bosques Project
Visit Site

The Bosques Project, located in northeastern Costa Rica in and around La Selva Biological Station, was initiated in 1997 to investigate the factors that influence the spatial and temporal dynamics of seedling, sapling, and tree regeneration in second-growth forests. The project hopes to increase our knowledge of successional vegetation dynamics, and the use of secondary forests for forestry and biodiversity conservation.

Neoselvas
Osa Project
Visit Site

Since 2008, together with Costa Rican researchers and with support from the blue moon fund, we have been monitoring trees in 18 0.5 ha forest monitoring plots in the Osa Biological Corridor in Costa Rica to evaluate changes in carbon storage and biodiversity during forest regrowth. We hope to expand this project to include studies of tree regeneration and forest restoration.

In the NewsRSS
Sabbatical is over and my book is not yet finished. Stay tuned!

ActivitiesGlobe
Workshop on Secondary Forest Regeneration and Restoration in the Neotropics, 28-30 October, 2009 neoSelvas Workshop
Current Doctoral Students
Amanda WendtAmanda Wendt
Tent-making bats, frugivory, and seed dispersal of mature forest species.
Vanessa BoukiliVanessa Boukili
Functional traits and community composition in secondary forests.
Current Masters Students
Manette SandorManette Sandor
Tropical forest restoration
Alexander DefrancescoAlexander Defrancesco
Tropical forest ecology
Former Postdoctoral Associates
Juan Pablo Arroyo MoraJuan Pablo Arroyo Mora
McGill University
Natalia NordenNatalia Norden
Universidad Javeriana, Bogota
Previous Graduate Students
Susan LetcherSusan Letcher
Organization for Tropical Studies
Juan Pablo Arroyo MoraJuan Pablo Arroyo Mora
McGill University
Ugar Uzay SezenUgar Uzay Sezen
University of Georgia
Catherine CardelusCatherine Cardelus
Colgate University
Juan DupuyJuan Dupuy
Centro de Investigaciones CientÌficos de Yucatan, Merida, Mexico
Silvia IriarteSilvia Iriarte
Univ. Nacional Autonoma de México
Rebecca MontgomeryRebecca Montgomery
University of Minnesota
Adrienne NicotraAdrienne Nicotra
Australia National University, Canberra, Australia

Most Recent



Letcher, S. G., R. L. Chazdon, A. Andrade, F. Bongers, M. van Breugel, B. Finegan, S. G. Laurance, R. C. G. Mesquita, M. Martinez-Ramos, and G. B. Williamson. 2011. Phylogenetic community structure during succession: evidence from three Neotropical forest sites. Perspectives in Plant Ecology Evolution and Systematics in press.

Chazdon, R. L., C. A. Harvey, M. Martínez-Ramos, P. Balvanera, K. E. Stoner, J. E. Schondube, L. D. Avila-Cabadilla, and M. Flores-Hidalgo. 2011. Seasonal dry forest biodiversity and conservation value in agricultural landscapes of Mesoamerica. Pages 195-219 in R. Dirzo, H. A. Mooney, G. Ceballos, and H. Young, editors. Ecology and Conservation of Neotropical Dry Forests. Island Press, Washington, D. C.

Norden, N., S. G. Letcher, V. Boukili, N. G. Swenson, and R. L. Chazdon. 2011. Demographic drivers of successional changes in phylogenetic structure across life history stages in tropical plant communities. Ecology in press.

Jost, L., A. Chao, and R. L. Chazdon. 2011. Compositional similarity and β (beta) diversity. Pages 66-84 in A. E. Magurran and B. J. McGill, editors. Biological diversity: Frontiers in measurement and assessment. Oxford University Press, New York.

Norden, N., R. C. G. Mesquita, T. V. Bentos, R. L. Chazdon, and G. B. Williamson. 2011. Contrasting community compensatory trends in alternative successional pathways in central Amazonia. Oikos 120:143-151.

Antonarakis, A. S., S. S. Saatchi, R. L. Chazdon, and P. R. Moorcroft. 2011. Using Lidar and Radar measurements to constrain predictions of forest ecosystem structure and function. Ecological Applications 21:1120-1137.

Saatchi, S., M. Marlier, R. Chazdon, D. Clark, and A. Russell. 2011. Impact of spatial variability of tropical forest structure on radar estimation of aboveground biomass. Remote Sensing of Environment doi:10.1016/j.rse.2010.07.015.

Chazdon, R. L., A. Chao, R. K. Colwell, S.-Y. Lin, N. Norden, S. G. Letcher, D. B. Clark, B. Finegan, and J. P. Arroyo. 2011. A novel statistical method for classifying habitat generalists and specialists. Ecology 92:1332-1343.

DeClerck, F., R. Chazdon, K. Holl, J. Milder, B. Finegan, A. Martinez-Salinas, P. Imbach, L. Canet, and Z. Ramos. 2010. Biodiversity conservation in human-modified landscapes of Mesoamerica: Past, present and future. Biological Conservation 143:2301-2313.

Dubayah, R. O., S. L. Sheldon, D. B. Clark, M. A. Hofton, J. B. Blair, G. C. Hurtt, and R. L. Chazdon. 2010. Estimation of tropical forest height and biomass dynamics using lidar remote sensing at La Selva, Costa Rica. Journal of Geophysical Research 115:1-17.

Uriarte, M., N. G. Swenson, R. L. Chazdon, L. S. Comita, W. J. Kress, D. Erickson, J. Forero-Montaña, J. K. Zimmerman, and J. Thompson. 2010. Trait similarity, shared ancestry and the structure of neighbourhood interactions in a subtropical wet forest: implications for community assembly. Ecology Letters 13:1503-1514.

Chazdon, R. L., B. Finegan, R. S. Capers, B. Salgado-Negret, F. Casanoves, V. Boukili, and N. Norden. 2010. Composition and dynamics of functional groups of trees during tropical forest succession in northeastern Costa Rica. Biotropica 42:31-40

Chazdon, R. L., C. A. Peres, D. Dent, D. Sheil, A. E. Lugo, D. Lamb, N. E. Stork and S. Miller. 2009. The potential for species conservation in tropical secondary forests. Conservation Biology 23: 1406-1417

Vilchez Alvarado, B., R. L. Chazdon, and V. Milla Quesada. 2009. Dinámica de la regeneración en cuatro bosques secundarios tropicales de la región Huetar Norte, Costa Rica: Su valor para la conservación o uso commercial. Recursos Naturales y Ambiente no. 55: 118-128.

Older Publications



Letcher, S. G., R. L. Chazdon, A. Andrade, F. Bongers, M. van Breugel, B. Finegan, S. G. Laurance, R. C. G. Mesquita, M. Martinez-Ramos, and G. B. Williamson. 2011. Phylogenetic community structure during succession: evidence from three Neotropical forest sites. Perspectives in Plant Ecology Evolution and Systematics in press.

Chazdon, R. L., C. A. Harvey, M. Martínez-Ramos, P. Balvanera, K. E. Stoner, J. E. Schondube, L. D. Avila-Cabadilla, and M. Flores-Hidalgo. 2011. Seasonal dry forest biodiversity and conservation value in agricultural landscapes of Mesoamerica. Pages 195-219 in R. Dirzo, H. A. Mooney, G. Ceballos, and H. Young, editors. Ecology and Conservation of Neotropical Dry Forests. Island Press, Washington, D. C.

Norden, N., S. G. Letcher, V. Boukili, N. G. Swenson, and R. L. Chazdon. 2011. Demographic drivers of successional changes in phylogenetic structure across life history stages in tropical plant communities. Ecology in press.

Jost, L., A. Chao, and R. L. Chazdon. 2011. Compositional similarity and β (beta) diversity. Pages 66-84 in A. E. Magurran and B. J. McGill, editors. Biological diversity: Frontiers in measurement and assessment. Oxford University Press, New York.

Norden, N., R. C. G. Mesquita, T. V. Bentos, R. L. Chazdon, and G. B. Williamson. 2011. Contrasting community compensatory trends in alternative successional pathways in central Amazonia. Oikos 120:143-151.

Antonarakis, A. S., S. S. Saatchi, R. L. Chazdon, and P. R. Moorcroft. 2011. Using Lidar and Radar measurements to constrain predictions of forest ecosystem structure and function. Ecological Applications 21:1120-1137.

Saatchi, S., M. Marlier, R. Chazdon, D. Clark, and A. Russell. 2011. Impact of spatial variability of tropical forest structure on radar estimation of aboveground biomass. Remote Sensing of Environment doi:10.1016/j.rse.2010.07.015.

Chazdon, R. L., A. Chao, R. K. Colwell, S.-Y. Lin, N. Norden, S. G. Letcher, D. B. Clark, B. Finegan, and J. P. Arroyo. 2011. A novel statistical method for classifying habitat generalists and specialists Ecology 92:1332-1343.

DeClerck, F., R. Chazdon, K. Holl, J. Milder, B. Finegan, A. Martinez-Salinas, P. Imbach, L. Canet, and Z. Ramos. 2010. Biodiversity conservation in human-modified landscapes of Mesoamerica: Past, present and future. Biological Conservation 143:2301-2313.

Dubayah, R. O., S. L. Sheldon, D. B. Clark, M. A. Hofton, J. B. Blair, G. C. Hurtt, and R. L. Chazdon. 2010. Estimation of tropical forest height and biomass dynamics using lidar remote sensing at La Selva, Costa Rica. Journal of Geophysical Research 115:1-17.

Uriarte, M., N. G. Swenson, R. L. Chazdon, L. S. Comita, W. J. Kress, D. Erickson, J. Forero-Montaña, J. K. Zimmerman, and J. Thompson. 2010. Trait similarity, shared ancestry and the structure of neighbourhood interactions in a subtropical wet forest: implications for community assembly. Ecology Letters 13:1503-1514.

Chazdon, R. L., B. Finegan, R. S. Capers, B. Salgado-Negret, F. Casanoves, V. Boukili, and N. Norden. 2010. Composition and dynamics of functional groups of trees during tropical forest succession in northeastern Costa Rica. Biotropica 42:31-40.

Letcher, S. G. and R. L. Chazdon. 2009. Rapid recovery of woody biomass, species richness, and species composition in a forest chronosequence in northeastern Costa Rica. Biotropica 41: 608-617

Melo, F., B. Rodriguez-Herrera, R. L. Chazdon, G. Ceballos and R. Medellin. 2009. Small tent-roosting bats promote dispersal of large-seeded plants in a Neotropical forest. Biotropica 41: 737-743.

Letcher, S. G. and R L. Chazdon. 2009. Lianas and self-supporting plants during tropical forest succession. Forest Ecology and Management 257: 2150-2156.

Gardner, T., J. Barlow, R. L. Chazdon, R. Ewers, C. A. Harvey and N. S. Sodhi. 2009. Prospects for tropical forest biodiversity in a human-modified world. Ecology Letters 12: 561-582.

Norden, N., R. L. Chazdon, A. Chao, Y.-H. Jiang and B. Vilchez Alvarado. 2009. Resilience of tropical rain forests: Tree community reassembly in secondary forests. Ecology Letters 12: 385-394.

Sezen, U. U., R. L. Chazdon and K. E. Holsinger. 2009. Proximity is not a proxy for parentage in an animal-dispersed Neotropical canopy palm. Proc. Royal Soc. London B 276: 2037-2044.

Chazdon, R. L., C. Harvey, O. Komar, D. Griffith, B. Ferguson, M. Martínez-Ramos, H. Morales, R. Nigh, L.Soto-Pinto, M. van Breugel S. Philpott. 2009. Beyond reserves: A research agenda for conserving biodiversity in tropical human-modified landscapes. Biotropica 41: 142-153.

Wood, T. E., D. Lawrence, D. A. Clark, and R. L. Chazdon. 2009. The effect of large-scale litter manipulation on rain forest nutrient cycling and productivity. Ecology 90: 109-121

Chazdon, R.L. 2008. Beyond deforestation: Restoring forests and ecosystem services on degraded lands. Science 320: 1458-1460.

Chao, A., L. Jost, S. C. Chiang, Y.-H. Jian, and R. L. Chazdon. 2008. A two-stage probabilistic approach to multiple-community similarity indices. Biometrics 64: 1178-1186.

Chazdon, R. L. 2008. Chance and determinism in tropical forest succession. In: Carson, W. and S. Schnitzer, Eds. Tropical Forest Community Ecology. Wiley-Blackwell Publishing, pp. 384-408.

Dupuy, J. M. and R. L. Chazdon. 2008. Interacting effects of canopy gap, understory vegeation and leaf litter on tree seedling recruitment and composition in tropical secondary forests. Forest Ecology and Management 255: 3716-3725.

Harvey, C. A., O. Komar, R. Chazdon, B. G. Ferguson, B. Finegan, D. M. Griffith, M. Martinez-Ramos, H. Morales, R. Nigh, L. Soto-Pinto, M. van Breugel, and M. Wishnie. 2008. Integrating agricultural landscapes with biodiversity conservation in the Mesoamerican Hotspot. Conservation Biology 22: 8-15.

Sodhi, N. S., L. P. Koh, K. S.-H. Peh, H. T. W. Tan, R. L. Chazdon, R. T. Corlett, T. M. Lee, R. K. Colwell, B. W. Brook, C. H. Sekercioglu, and C. J. A. Bradshaw. 2008. Correlates of extinction proneness in tropical angiosperms. Diversity and Distributions 14: 1-10.

Vilchez, B., R. L. Chazdon, and W. Alvarado. 2007. Fenologia reproductive de las especies del dosel superior en seis sitions de la region Huetar Norte de Costa Rica. 2007. Kuru: Revista Forestal Costa Rica.

Sezen, U. U., R. L. Chazdon, and K. E. Holsinger. 2007. Multigenerational genetic analyses of tropical secondary regeneration in a canopy palm. Ecology 88: 3065-3075.

Chazdon, R. L., S. G. Letcher, M. van Breugel, M. Martinez-Ramos, F. Bongers and B. Finegan. 2007. Rates of change in tree communities of secondary Neotropical forests following major disturbances. Philosophical Transactions of the Royal Society B-Biological Sciences 362: 273-289.

Chao, A., R. L. Chazdon, R. K. Colwell and T. J. Shen. 2006. Abundance-based similarity indices and their estimation when there are unseen species in samples. Biometrics 62: 361-371.

Palomaki, M. B., R. L. Chazdon, J. P. Arroyo and S. G. Letcher. 2006. Juvenile tree growth in relation to light availability in second-growth tropical rain forests. Journal of Tropical Ecology 22: 223-226.

Lusk, C. H., Chazdon, R. L., and G. Hofmann. 2006. A bounded null model explains juvenile tree community structure along light availability gradients in an old-growth temperate rain forest. Oikos 112: 131-137.

Dupuy, J. M. and R. L. Chazdon. 2006. Effects of vegetation cover on seedling and sapling dynamics in secondary tropical wet forests in Costa Rica. Journal of Tropical Ecology 22: 65-76.

Ruiz, J., M. C. Fandino, and R.L. Chazdon. 2005. Vegetation structure, composition, and species richness across a 56-year chronosequence of dry tropical forest on Providencia Island, Colombia. Biotropica 37: 520-530.

Capers, R. S. R. L. Chazdon, Redondo Brenes, Al, and Vilchez Alvarado, B. 2005. Successional dynamics of woody seedling communities in wet tropical secondary forests. Journal of Ecology 93: 1071-1084.

Cardelus, C. L. and R. L. Chazdon. 2005. Inner-crown microenvironments of two emergent tree species in a lowland wet forest. Biotropica 37: 238-244.

Chazdon, R. L., A. Redondo Brenes, and B. Vilchez Alvarado. 2005. Effects of climate and stand age on annual tree dynamics in tropical second-growth rain forests. Ecology 86: 1808-1815.

Iriarte, S. B. B. and R. L. Chazdon. 2005. Light-dependent seedling survival and growth of four tree species in Costa Rican second-growth rain forests. Journal of Tropical Ecology 21: 383-395.

Sezen, U. U., R. L. Chazdon and K. E. Holsinger. 2005. Genetic consequences of tropical second-growth forest regeneration. Science 307: 891

Vilchez Alvarado, R. L. Chazdon, and A. Redondo. 2004. Fenologia reproductiva de cinco especies forestales del Bosque Secundario Tropical. Kuru: Revista Forestal Costa Rica 1(2): 1-10.

Redondo Brenes, R. L. Chazdon, and B. Vilchez Alvarado. 2004. Effects of selective logging on dynamics and composition of woody seedlings in a tropical secondary forest. Kuru: Revista Forestal Costa Rica 1(3): 1-11.

Capers, R. S. and R. L. Chazdon. 2004. Rapid assessment of understory light availability in a wet tropical forest. Agricultural and Forest Meteorology 123: 177-185.

Chazdon, R. L. 2003. Tropical forest recovery: legacies of human impact and natural disturbances. Perspectives in Plant Ecology, Evolution and Systematics, 6: 51-71.

Chazdon, R. L., S. Careaga, C. Webb, and O. Vargas. 2003. Community and phylogenetic structure of reproductive traits of woody species in wet tropical forests. Ecological Monographs 73: 331-348.

Nicotra, A. B., R. L. Chazdon, and R. A. Montgomery 2003. Sexes show contrasting patterns of leaf and crown carbon gain in a dioecious rainforest shrub. American Journal of Botany 90: 347-355

Chazdon, R. L. and T. C. Whitmore. 2002. Foundations of Tropical Forest Biology: Classic Papers with Commentaries. University of Chicago Press.

Montgomery, R. A. and R. L. Chazdon. 2002. Light gradient partitioning by tropical tree seedlings in the absence of canopy gaps. Oecologia 131: 165-174.

Drake, J. B., R. O. Dubayah, D. B. Clark, R. G. Knox, J. B. Blair, M. A. Hofton, R. L. Chazdon, J. F. Weishampel, and S. Prince. 2002. Estimation of Tropical Forest Structural Characteristics Using Large-footprint Lidar.? Remote Sensing of Environment. 79: 305-319.

Redondo B., A., B. Vilchez A., R. L. Chazdon. 2001. Estudio de la dinamina y composicion de cuatro bosques secundarios en la region Huetar Norte, Sarapiqui--Costa Rica. Revista Forestal Centroamericana No. 36 (Oct-Dec) 21-26.

Montgomery, R. A. and R. L. Chazdon. 2001. Forest structure, canopy architecture, and light transmittance in old-growth and second-growth tropical rain forests. Ecology 82: 2707-2718.

Chazdon, R. L. and R. A. Montgomery. 2001. Carbon acquisition by tropical forest plants. In: M. Guariguata and G. Kattan (Eds.). EcologÌa de Bosque Lluvioso Neotropical. IICA, Costa Rica

Chazdon, R. L., R. K. Colwell, and J. S. Denslow. 1999. Tropical tree richness and resource-based niches. Science 285: 1459a [on-line journal only].

Chazdon, R. L. and F. G. Coe. 1999. Ethnobotany of woody species in second-growth, old-growth, and selectively logged forests of northeastern Costa Rica. Conservation Biology 13: 1312-1322.

Nicotra, A. B., R. L. Chazdon, and S. Iriarte. 1999. Spatial heterogeneity of light and woody seedling regeneration in tropical wet forests. Ecology 80: 1908-1926.

Canham, C. D., R. K. Kobe, Latty, E. F. Chazdon, R. L. 1999. Interspecific and intraspecific variation in tree seedling survival: effects of allocation to roots versus carbohydrate reserves. Oecologia 121: 1-11.

Dupuy, J. M. and R. L. Chazdon. 1998. Long-term effects of forest regrowth and selective logging on the seed bank of tropical forests in NE Costa Rica. Biotropica 30: 223-237.

Butler, B. J. and R. L. Chazdon. 1998. Species richness, spatial variation, and abundance of the soil seed bank of a secondary tropical rain forest. Biotropica 30: 214-222.

Guariguata, M. R., R. L. Chazdon, J. S. Denslow, J. M. Dupuy and L. Anderson. 1997. Structure and floristics of secondary and old-growth forest stands in lowland Costa Rica. Plant Ecology 132: 107-120.

Nicotra, A. B., R. L. Chazdon and C. D. Schlichting. 1997. Patterns of genotypic variation and phenotypic plasticity of light response in two tropical Piper (Piperaceae) species. American Journal of Botany 84: 1542-1553.

Kabakoff, R. P. and R. L. Chazdon. 1996. Effects of canopy species dominance on understory light availability in tropical secondary rain forest. Journal of Tropical Ecology 12: 779-788.

Chazdon, R. L. 1996. Spatial heterogeneity in tropical forest structure: canopy palms as landscape mosaics. Trends in Ecology and Evolution 11: 8-9

Chazdon, R. L., R. K. Colwell, J. S. Denslow and M. Guariguata. 1998. Statistical estimation of species richness of woody regeneration in primary and secondary rainforests of NE Costa Rica. . Pp 285-309 In: Dallmeier, F., and J. Comisky, eds. Forest Biodiversity in North, Central, and South America and the Caribbean: Research and Monitoring. Parthenon Press, Paris.

Chazdon, R. L., R. W. Pearcy, D. W. Lee and N. Fetcher. 1996. Photosynthetic responses to contrasting light environments. pp. 5-55 in: Mulkey, S., Chazdon, R. and Smith, A. P. (eds.) Tropical Forest Plant Ecophysiology, Chapman and Hall.