Staff Profile
Photo for Geoffrey Parker


McGill University (B Sc. In Biology)
University of Virginia (MS. In Environmental Sciences)
University of Georgia (Ph. D. in Ecology)
Cary Institute of Ecosystem Studies (postdoctoral fellow)

Geoffrey (‘Jess’) Parker has been the forest ecologist at the Smithsonian Environmental Research Center (SERC) in Edgewater, Md., since 1987.   His research interests concern the structure and function of forest ecosystems at long temporal and large spatial scales, in the canopies of forests, the spatial relationships of forest trees, and in comparative forest ecology.   An organizing theme of the majority of studies has been the interaction between the structure of the forest canopy and:  1.) exchanges of material and energy with the atmospheric boundary layer, 2.) forest microclimates, and 3.) biotic habitats.  He is currently involved in a variety of LIDAR-based studies of forest structure, eddy covariance-based measures of forest functions, and biometrically-based studies of forest carbon budgets.  



  • Parker, Geoffrey G. (1995). Structure and microclimate of forest canopies. Forest Canopies - A Review of Research on a Biological Frontier (73-106) Academic Press, Inc .
  • Parker, Geoffrey G. (1994). Soil fertility, nutrient acquisition, and nutrient cycling. La Selva - ecology and natural history of a neotropical rainforest (54-63) University of Chicago Press .
  • Nadkarni, Nalini M. and Parker, Geoffrey G. (1994). Creation of the Canopy Research Network. Ecological Engineering, 3 , 203.
  • Brown, Martin J. and Parker, Geoffrey G. (1994). Canopy light transmittance in a chronosequence of mixed-species deciduous forests. Canadian Journal of Forest Research, 24 , 1694-1703.
  • Parker, Geoffrey G., Shaw, D. C. and Smith, Alan P. (1994). Long-term studies of canopies - an international network for research on the outer forest canopy. Selbyana,
  • Nadkarni, Nalini M. and Parker, Geoffrey G. (1994). A profile of forest canopy science and scientists -- who we are, what we want to know, and obstacles we face: Results of an international survey. Selbyana, 15 (2) , 38-50.
  • Brown, Martin J., Parker, Geoffrey G. and Posner, Nathaniel E. (1994). A survey of ultraviolet-B radiation in forests. Journal of Ecology, 82 , 843-854.
  • Parker, Geoffrey G., Shaw, D. C. and Smith, A. P. (1993). An international network for research on the outer forest canopy. Selbyana, 14 , 36.
  • Parker, Geoffrey G. (1993). Structure and dynamics of the outer canopy in a Panamanian dry forest. Selbyana, 14 , 5.
  • Parker, Geoffrey G., Hill, Suzanne M. and Kuehnal, Laurel A. (1993). Decline of understory American chestnut (Castanea dentata) in a southern Appalachian forest. Canadian Journal of Forest Research, 23 , 259-265.
  • Canham, C. C., Parker, Geoffrey G. and Siccama, R. . (1992). Permanent plots - a directory of long-term studies of vegetation. Occasional Publication of the Institute of Ecosystem Studies .
  • Parker, Geoffrey G., Smith, Alan P. and Hogan, Kevin P. (1992). Access to the upper forest canopy with a large tower crane. Bioscience, 42 (9) , 664-670.
  • Burnham, Robyn, Wing, Scott L. and Parker, Geoffrey G. (1992). Reflection of deciduous forest communities in leaf litter: Implications for autochthonous litter assemblages from the fossil record. Paleobiology, 18 (1) , 30-49.
  • Parker, Geoffrey G. (1990). Evaluation of dry deposition, pollutant damage, and forest health with throughfall studies. Mechanisms of Forest Response to Acidic Deposition (10-61) Springer-Verlag .
  • Parker, Geoffrey G. (1989). Are currently available statistical methods adequate for long-term studies?. Long-Term Studies in Ecology (199-200) Springer-Verlag .