DEBORAH A. CLARK, Ph.D., University of Wisconsin

E-Mail: DCLARK@SOL.RACSA.CO.CR


Education

Ph.D., Zoology (minor in Botany), University of Wisconsin, Madison, 1978.
B.A., Biology, University of North Carolina, Chapel Hill, 1970.

Professional Experience

1994 - present Adjunct Associate Professor, Department of Biology,
University of Missouri-St. Louis.
1980 - Feb. 1994 Co-Director, La Selva Biological Station, Organization for
Tropical Studies, Costa Rica.
1978 - 1979 Co-Director, Point Reyes Bird Observatory, Stinson Beach,
California.

Selected Publications

Clark, D.B., and D.A. Clark. In press. Abundance, growth and mortality of very large trees in neotropical lowland rain forest. Forest Ecology and Management.

Clark, D.A., D.B. Clark, R. Sandoval M., M.V. Castro C. 1995. Edaphic and human effects on landscape-scale distributions of tropical rain forest palms:. Ecology 76:2581-1594.

Ryan, M.G., Hubbard, R. M., Clark, D. A. and R.L. Sanford, Jr. 1994. Woody tissue respiration for Simarouba amara and Minquartia guianensis, two tropical wet forest trees with different growth habitats. Oecologia 100:213-220.

Clark, D.A. and D.B. Clark. 1994. Climate-induced annual variation in canopy tree growth in a Costa Rican tropical rain forest. Journal of Ecology 82:865-872.

Clark, D.A. 1994. Plant demography. In L.A. McDade, K.S. Bawa, H.A. Hespenheide, and G.S. Hartshorn (eds). Pp. 90-105 in La Selva: ecology and natural history of a neotropical rain forest. University of Chicago Press.

Clark, D.B., D.A. Clark, and P.M. Rich. 1993. Comparative analysis of microhabitat utilization by saplings of nine tree species in neotropical rain forest. Biotropica 25:397-407.

Oberbauer, S.F., D.B. Clark, D.A. Clark, P. Rich, and G. Vega. 1993. Light environment, gas exchange, and annual growth of three species of Costa Rican rain forest trees. Journal of Tropical Ecology 9:511-523.

Rich, P.M., D.B. Clark, D.A. Clark, and S.F. Oberbauer. 1993. Long-term study of solar radiation regimes in a tropical wet forest using quantum sensors and hemispherical photography. Agricultural and Forest Meteorology 65:107-127.

Clark, D.A., and D.B. Clark. 1992. Life history diversity of canopy and emergent trees in a neotropical rain forest. Ecological Monographs 62:315-344.

Clark, D.B., and D.A. Clark, and M.H. Grayum. 1992. Leaf demography of a neotropical rain forest cycad, Zamia skinneri (Zamiaceae). American Journal of Botany 79:28-33.

Clark, D.B., and D.A. Clark. 1991. The impact of physical damage on canopy tree regeneration in tropical rain forest. Journal of Ecology 79:447-457.

Clark, D.B., and D.A. Clark. 1991. Herbivores, herbivory, and plant phenology: patterns and consequences in a tropical rain forest cycad. Pages 209-225 in P.W. Price, T.M. Lewinsohn, G. Wilson Fernandes, and W. Benson (eds.). Plant-animal interactions: evolutionary ecology in tropical and temperate regions. John Wiley.

Clark, D.B. and D.A. Clark. 1990. Distribution and effects on tree growth of lianas and hemiepiphytes in a Costa Rican tropical wet forest. Journal of Tropical Ecology 6:321-331.

Clark, D.B. and D.A. Clark. 1989. The role of physical damage in the seedling mortality regime of a neotropical rain forest. Oikos 55:225-230.

Oberbauer, S.F., D.A. Clark, D.B. Clark, and M. Quesada. 1989. Comparative analysis of photosynthetic light environments within the crowns of juvenile rain forest trees. Tree Physiology 5:13-23.

Oberbauer, S.F., D.B. Clark, and D.A. Clark. 1988. Crown light environments of saplings of 2 species of rain forest emergent trees. Oecologia 75:207-212.

Clark, D.B. and D.A. Clark. 1988. Leaf production and the cost of reproduction in the tropical rain forest cycad, Zamia skinneri. Journal of Ecology 76:1153-1163.

Clark, D.B., and D.A. Clark. 1987. Population biology and microhabitat distribution of Dipteryx panamensis, a neotropical rain forest emergent tree. Biotropica 19:236-244.

Clark, D.A., R. Dirzo, and N. Fetcher, editors. 1987. Ecologia y ecofisiologia de plantas en los bosques mesoamericanos. Revista de Biologia Tropical 35(Suppl.1):1-234.

Clark, D.A., and D.B. Clark. 1987. Analisis de la regeneracion de arboles del dosel en bosque muy humedo tropical: aspectos tecnicos y practicos. Revista de Biologia Tropical 35 (Suppl.1):41-54.

Clark, D.A., and D.B. Clark. 1987. Temporal and environmental patterns of reproduction in Zamia skinneri, a tropical rain forest cycad. Journal of Ecology 75:135-149.

Clark, D.A. 1986. Regeneration of canopy trees in tropical wet forests. Trends in Ecology and Evolution 1:150-154.

Clark, D.B., and D.A. Clark. 1985. Seedling dynamics of a tropical rain forest tree: impacts of herbivory and apical meristem damage. Ecology 66:1884-1892.

Clark, D.A., and D.B. Clark. 1984. Spacing dynamics of a tropical rain forest tree: evaluation of the Janzen-Connell model. American Naturalist 124:769-788.

Research Interests

Population ecology, life history diversity, and ecophysiology of canopy trees of lowland tropical rain forest. Ecological differentiation between the sexes of dioecious tropical trees. Climatic controls of forest productivity in tropical wet forest. Edaphic and human influences on the landscape distribution of tropical rain forest trees. Analysis of thimpact of deforestation on the geographic distribution of genetic variationin tropical timber trees, using a combination of DNA and isozyme molecular techniques. Reproductive biology and demography of a tropical rain forest cycad.