Staff Profile
Photo for Geoffrey Parker

Biography

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.  

 

Publications

  • Davies, Stuart J., Abiem, Iveren, Abu Salim, Kamariah, Aguilar, Salomon, Allen, David, Alonso, Alfonso, Anderson-Teixeira, Kristina J., Andrade, Ana, Arellano, Gabriel, Ashton, Peter S., Baker, Patrick J., Baker, Matthew E., Baltzer, Jennifer L., Basset, Yves, Bissiengou, Pulcherie, Bohlman, Stephanie, Bourg, Norman A., Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Burslem, David F. R. P., Cao, Min, Cardenas, Dairon, Chang, Li-Wan, Chang-Yang, Chia-Hao, Chao, Kuo-Jung, et al. (2021). ForestGEO: Understanding forest diversity and dynamics through a global observatory network. Biological Conservation, 253 , 108907-108907. https://doi.org/10.1016/j.biocon.2020.108907
  • Jiang, Feng, Lutz, James A., Guo, Qingxi, Hao, Zhanqing, Wang, Xugao, Gilbert, Gregory S., Mao, Zikun, Orwig, David A., Parker, Geoffrey G., Sang, Weiguo, Liu, Yankun, Tian, Songyan, Cadotte, Marc W. and Jin, Guangze. (2021). Mycorrhizal type influences plant density dependence and species richness across 15 temperate forests. Ecology, 102 (3) , e03259. https://doi.org/10.1002/ecy.3259
  • LaRue, Elizabeth A., Rohr, Jason, Knott, Jonathan, Dodds, Walter K., Dahlin, Kyla M., Thorp, James H., Johnson, Jeremy S., Rodriguez Gonzalez, Mayra, I., Hardiman, Brady S., Keller, Michael, Fahey, Robert T., Atkins, Jeff W., Tromboni, Flavia, SanClements, Michael D., Parker, Geoffrey, Liu, Jianguo and Fei, Songlin. (2021). The evolution of macrosystems biology. Frontiers in Ecology and the Environment, 19 (1) , 11-19. https://doi.org/10.1002/fee.2288
  • Sedio, Brian E., Spasojevic, Marko J., Myers, Jonathan A., Wright, S. Joseph, Person, Maria D., Chandrasekaran, Hamssika, Dwenger, Jack H., Prechi, Maria Laura, Lopez, Christian A., Allen, David N., Anderson-Teixeira, Kristina J., Baltzer, Jennifer L., Bourg, Norman A., Castillo, Buck T., Day, Nicola J., Dewald-Wang, Emily, Dick, Christopher W., James, Timothy Y., Kueneman, Jordan G., LaManna, Joseph, Lutz, James A., McGregor, Ian R., McMahon, Sean M., Parker, Geoffrey G., Parker, John D., et al. (2021). Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American Forests. Frontiers in Ecology and Evolution, 9 https://doi.org/10.3389/fevo.2021.679638
  • Fung, Tak, Chisholm, Ryan A., Anderson-Teixeira, Kristina J., Bourg, Norm, Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Chang‐Yang, Chia-Hao, Chitra‐Tarak, Rutuja, Chuyong, George, Condit, Richard, Dattaraja, Handanakere S., Davies, Stuart J., Ewango, Corneille E. N., Fewless, Gary, Fletcher, Christine, Gunatilleke, C. V. S., Gunatilleke, I. A. U. N., Hao, Zhanqing, Hogan, J. A., Howe, Robert, Hsieh, Chang-Fu, Kenfack, David, Lin, YiChing, Ma, Keping, Makana, Jean-Remy, et al. (2020). Temporal population variability in local forest communities has mixed effects on tree species richness across a latitudinal gradient . Ecology Letters, 23 (1) , 160-171. https://doi.org/10.1111/ele.13412
  • Parker, Geoffrey G. (2020). Tamm review: Leaf Area Index (LAI) is both a determinant and a consequence of important processes in vegetation canopies. Forest Ecology and Management, 477 , 118496-118496. https://doi.org/10.1016/j.foreco.2020.118496
  • Sedio, Brian E., Devaney, John L., Pullen, Jamie, Parker, Geoffrey G., Wright, S. Joseph and Parker, John D. (2020). Chemical novelty facilitates herbivore resistance and biological invasions in some introduced plant species . Ecology and Evolution, 10 (16) , 8770-8792. https://doi.org/10.1002/ece3.6575
  • Almeida, Danilo R. A., Stark, Scott C., Schietti, Juliana, Camargo, Jose L. C., Amazonas, NinoT, Gorgens, Eric B., Rosa, Diogo M., Smith, Marielle N., Valbuena, Ruben, Saleska, Scott, Andrade, Ana, Mesquita, Rita, Laurance, Susan G., Laurance, William F., Lovejoy, Thomas E., Broadbent, Eben N., Shimabukuro, Yosio E., Parker, Geoffrey G., Lefsky, Michael, Silva, Carlos A. and Brancalion, Pedro H. S. (2019). Persistent effects of fragmentation on tropical rainforest canopy structure after 20 yr of isolation . Ecological Applications, 29 (6) , e01952. https://doi.org/10.1002/eap.1952
  • Beland, Martin, Parker, Geoffrey, Sparrow, Ben, Harding, David, Chasmer, Laura, Phinn, Stuart, Antonarakis, Alexander and Strahler, Alan. (2019). On promoting the use of lidar systems in forest ecosystem research. Forest Ecology and Management, 450 , 117484-117484. https://doi.org/10.1016/j.foreco.2019.117484
  • Chu, Chengjin, Lutz, James A., Kral, Kamil, Vrska, Tomas, Yin, Xue, Myers, Jonathan A., Abiem, Iveren, Alonso, Alfonso, Bourg, Norm, Burslem, David F. R. P., Cao, Min, Chapman, Hazel, Condit, Richard S., Fang, Suqin, Fischer, Gunter A., Gao, Lianming, Hao, Zhanqin, Hau, Billy C. H., He, Qing, Hector, Andrew, Hubbell, Stephen P., Jiang, Mingxi, Jin, Guangze, Kenfack, David, Lai, Jiangshan, et al. (2019). Direct and indirect effects of climate on richness drive the latitudinal diversity gradient in forest trees. Ecology Letters, 22 (2) , 245-255. https://doi.org/10.1111/ele.13175
  • Fung, Tak, Chisholm, Ryan A., Anderson-Teixeira, Kristina, Bourg, Norm, Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Chang-Yang, Chia-Hao, Chitra-Tarak, Rutuja, Chuyong, George, Condit, Richard, Dattaraja, Handanakere S., Davies, Stuart J., Ewango, Corneille E. N., Fewless, Gary, Fletcher, Christine, Gunatilleke, C. V. Savitri, Gunatilleke, I. A. U. Nimal, Hao, Zhanqing, Hogan, J. Aaron, Howe, Robert, Hsieh, Chang-Fu, Kenfack, David, Lin, YiChing, Ma, Keping, Makana, Jean-Remy, et al. (2019). Temporal population variability in local forest communities has mixed effects on tree species richness across a latitudinal gradient . Ecology Letters, https://doi.org/10.1111/ele.13412
  • Parker, Geoffrey G., Fitzjarrald, David R. and Gonçalves Sampaio, Irene Cibelle. (2019). Consequences of environmental heterogeneity for the photosynthetic light environment of a tropical forest . Agricultural and Forest Meteorology, 278 , Article 107661. https://doi.org/10.1016/j.agrformet.2019.107661
  • LaManna, Joseph A., Mangan, Scott A., Alonso, Alfonso, Bourg, Norman A., Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Chang, Li-Wan, Chiang, Jyh-Min, Chuyong, George B., Clay, Keith, Cordell, Susan, Davies, Stuart J., Furniss, Tucker J., Giardina, Christian P., Gunatilleke, I. A. U. Nimal, Gunatilleke, C. V. Savitri, He, Fangliang, Howe, Robert W., Hubbell, Stephen P., Hsieh, Chang-Fu, Inman-Narahari, Faith M., Janik, David, Johnson, Daniel J., Kenfack, David, Korte, Lisa, et al. (2018). Response to Comment on 'Plant diversity increases with the strength of negative density dependence at the global scale' . Science, 360 (6391) https://doi.org/10.1126/science.aar5245
  • LaManna, Joseph A., Mangan, Scott A., Alonso, Alfonso, Bourg, Norman A., Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Chang, Li-Wan, Chiang, Jyh-Min, Chuyong, George B., Clay, Keith, Cordell, Susan, Davies, Stuart J., Furniss, Tucker J., Giardina, Christian P., Gunatilleke, I. A. U. Nimal, Gunatilleke, C. V. Savitri, He, Fangliang, Howe, Robert W., Hubbell, Stephen P., Hsieh, Chang-Fu, Inman-Narahari, Faith M., Janik, David, Johnson, Daniel J., Kenfack, David, Korte, Lisa, et al. (2018). Response to Comment on 'Plant diversity increases with the strength of negative density dependence at the global scale'. Science, 360 (6391) , aar3824-aar3824. https://doi.org/10.1126/science.aar3824
  • Maass, Manuel, Ahedo-Hernández, Raúl, Araiza, Salvador, Verduzco, Abel, Martínez-Yrízar, Angelina, Jaramillo, Ví, Parker, Geoffrey G., Pascual, Fermín, García-Méndez, Georgina and Sarukhán, José. (2018). Long-term (33 years) rainfall and runoff dynamics in a tropical dry forest ecosystem in western Mexico: Management implications under extreme hydrometeorological events . Forest Ecology and Management, 426 , 7-17. https://doi.org/10.1016/j.foreco.2017.09.040

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