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Smithsonian Environmental Research Center

Understanding Ecosystems for a Sustainable Future

The Reed Education Center and surrounding trailheads are closed to the public until early April 2023 for maintenance. Our trails are open but only accessible from the trailhead near the main campus. Parking is available in the gravel lot on the main campus. Read Plan Your Visit for information on where to park, updated maps and hours, safety, and more.

The Woodlawn History Center is open Fri. & Sat. with extended hours from 10am-2pm!

Plant Ecology

Principal Investigator

whighamd@si.edu

443-482-2226

Curriculum Vitae

Publications

Dickinson, M. B. ; Whigham, Dennis F. (2013). Competition among surface roots in a selectively-logged, semi-deciduous forest in southeastern Mexico -- effects on seedlings of two species of contrasting shade tolerance . Caribbean Journal of Science, 47 (2-3) , 140-152.
Krupnick, Gary A. ; McCormick, Melissa K. ; Mirenda, Thomas ; Whigham, Dennis F. (2013). The Status and Future of Orchid Conservation in North America . Annals of the Missouri Botanical Garden, 99 (2) , 180-198. http://dx.doi.org/10.3417/2011108
Laanbroek, Hendrikus J. ; Keijzer, Rosalinde M. ; Verhoeven, Jos T. A. ; Whigham, Dennis F. (2013). Changes in community composition of ammonia-oxidizing betaproteobacteria from stands of Black mangrove (Avicennia germinans) in response to ammonia enrichment and more oxic conditions . Frontiers in Microbiology, 4 (343) http://dx.doi.org/10.3389/fmicb.2013.00343
Ma, Yini ; Filley, Timothy R. ; Johnston, Cliff T. ; Crow, Susan E. ; Szlavecz, Katalin ; McCormick, Melissa K. (2013). The combined controls of land use legacy and earthworm activity on soil organic matter chemistry and particle association during afforestation . Organic Geochemistry, 58 , 56-68. http://dx.doi.org/10.1016/j.orggeochem.2013.02.010
McCormick, Melissa K. ; Parker, Kenneth L. ; Szlavecz, Katalin ; Whigham, Dennis F. (2013). Native and exotic earthworms affect orchid seed loss. AoB Plants, 5 , plt018. http://dx.doi.org/10.1093/aobpla/plt018
Swarth, Christopher W. ; Delgado, Patricia ; Whigham, Dennis F. (2013). Vegetation Dynamics in a Tidal Freshwater Wetland: A Long-Term Study at Differing Scales . Estuaries and Coasts, 36 (3) , 59-574. http://dx.doi.org/10.1007/s12237-012-9568-x
Szlavecz, Katalin ; Pitz, Scott L. ; Bernard, Michael J. ; Xia, Lijun ; O'Neill, John P. ; Chang, Chih-Han ; McCormick, Melissa K. ; Whigham, Dennis F. (2013). Manipulating earthworm abundance using electroshocking in deciduous forests . Pedobiologia, 56 (1) , 33-40. http://dx.doi.org/10.1016/j.pedobi.2012.08.008
Baldwin, Andrew H. ; Kangas, Patrick J. ; Megonigal, J. Patrick ; Perry, Matthew C. ; Whigham, Dennis F. (2012). Coastal Wetlands of Chesapeake Bay . Wetland Habitats of North America: Ecology and Conservation Concerns (29-43) University of California Press .
Dekar, Matthew P. ; King, Ryan S. ; Back, Jeffrey A. ; Whigham, Dennis F. ; Walker, Coowe M. (2012). Allochthonous inputs from grass-dominated wetlands support juvenile salmonids in headwater streams: evidence from stable isotopes of carbon, hydrogen, and nitrogen . Freshwater Science, 31 (1) , 121-132. http://dx.doi.org/10.1899/11-016.1
Ikegami, Makihiko ; Whigham, Dennis F. ; Werger, Marinus J. A. (2012). Effects of local density of clonal plants on their sexual and vegetative propagation strategies in a lattice structure model . Ecological Modelling, 234 , 51-59. http://dx.doi.org/10.1016/j.ecolmodel.2012.03.026
King, Ryan S. ; Walker, Coowe M. ; Whigham, Dennis F. ; Baird, Steven J. ; Back, Jeffrey A. (2012). Catchment topography and wetland geomorphology drive macroinvertebrate community structure and juvenile salmonid distributions in south-central Alaska headwater streams . Freshwater Science, 31 (2) , 341-364. http://dx.doi.org/10.1899/11-109.1
Laanbroek, Hendrikus J. ; Keijzer, Rosalinde M. ; Verhoeven, Jos T. A. ; Whigham, Dennis F. (2012). The effect of hydrology on the distribution of ammonia-oxidizing betaproteobacteria in impounded black mangroves (Avicennia germinans) . Frontiers in Microbiology, 3 , 111. http://dx.doi.org/10.3389/fmicb.2012.00153
McCormick, Melissa K. ; Lee Taylor, D. ; Juhaszova, Katarina ; Burnett, Robert K. ; Whigham, Dennis F. ; O'Neill, John P. (2012). Limitations on orchid recruitment: not a simple picture . Molecular Ecology, 21 (6) , 1511-1523. http://dx.doi.org/10.1111/j.1365-294X.2012.05468.x
McCormick, Melissa K. ; Whigham, Dennis F. (2012). Using the complexities of orchid life histories to target conservation efforts . The Native Orchid Conference Journal, 9 (4) , 14-23.
Meyerson, L. A. ; Lambertini, C. ; McCormick, Melissa K. ; Whigham, Dennis F. (2012). Hybridization of common reed in North America? The answer is blowing in the wind . AoB Plants, 2012 , pls022. http://dx.doi.org/10.1093/aobpla/pls022

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