Richard A. MacKenzie, PhD

Treesearch Publications

• Maria Elisa Gerona-Daga, Richard A. MacKenzie, Severino G. Salmo III. 2025. Photosynthetic characteristics of mangrove seedlings in chronosequence of restored and recolonized stands under field conditions
• Kevin J. Buffington, Joel A. Carr, Richard A. MacKenzie, Maybeleen Apwong, Ken W. Krauss, Karen M. Thorne. 2024. Projecting mangrove forest resilience to sea-level rise on a Pacific Island: Species dynamics and ecological thresholds
• Severino G. Salmo, Sean Paul B. Manalo, Precious B. Jacob, Maria Elisa B. Gerona-Daga, Camila Frances P. Naputo, Mareah Wayne A. Maramag, Mohammad Basyuni, Frida Sidik, Richard A. MacKenzie. 2024. Improving soil carbon estimates of Philippine mangroves using localized organic matter to organic carbon equations
• Maria Elisa B. Gerona-Daga, Richard A. MacKenzie, Severino G. Salmo III. 2024. Variations in litterfall dynamics, root biomass, and sediment accretion in restored and recolonized mangroves in Leyte, Philippines
• Carine F. Bourgeois, Richard A. MacKenzie, Sahadev Sharma, Rupesh K. Bhomia, Nels G. Johnson, Andre S. Rovai, Thomas A. Worthington, Ken W. Krauss, Kangkuso Analuddin, Jacob J. Bukoski, Jose Alan Castillo, Angie Elwin, Leah Glass, Tim C. Jennerjahn, Mwita M. Mangora, Cyril Marchand, Michael J. Osland, Ismaël A. Ratefinjanahary, Raghab Ray, Severino G. Salmo III, Sigit D. Sasmito, Rempei Suwa, Pham Hong Tinh, Carl C. Trettin. 2024. Four decades of data indicate that planted mangroves stored up to 75% of the carbon stocks found in intact mature stands
• Richard A. MacKenzie, Ken W. Krauss, Nicole Cormier, Eugene Eperiam, Jan van Aardt, Ali Rouzbeh Kargar, Jessica Grow, J. Val. Klump. 2023. Relative effectiveness of a radionuclide (²¹⁰Pb), surface elevation table (SET), and LiDAR at monitoring mangrove forest surface elevation change
• Allison R. Crimmins, Christine L. May, Sarah R. Cooley, Erica Fleishman, Eric E. Grossman, Brian Helmuth, Richard A. MacKenzie, Daisy R. Ramirez Lopez, Emily Wasley. 2023. Focus on Blue Carbon
• Pham Hong Tinh, Richard A. MacKenzie, Tran Dang Hung, Nguyen Thi Hong Hanh, Nguyen Hoang Hanh, Do Quy Manh, Hoang Thi Ha, Mai Sy. Tuan. 2022. Distribution and drivers of Vietnam mangrove deforestation from 1995 to 2019
• Pham Hong Tinh, Richard A. MacKenzie, Tran Dang Hung, Truong Van Vinh, Hoang Thi Ha, Mai Huong Lam, Nguyen Thi Hong Hanh, Nguyen Xuan Tung, Pham Minh Hai, Bui Thanh. Huyen. 2022. Mangrove restoration in Vietnamese Mekong Delta during 2015-2020: Achievements and challenges
• Richard A. MacKenzie, Ayron Strauch, Therese Frauendorf, Tracy Wiegner, Ralph W. Tingley. 2021. Chapter 18: Ecoregion not Classified: Hawai’i Experimental Tropical Forest, Hawai’i
• Robert R. Twilley, Edward Castañeda‐Moya, Stephen R. Midway, Daniel A. Friess, Carl C. Trettin, Jacob J. Bukoski, Atticus E.L. Stovall, Paulo R. Pagliosa, Alessandra L. Fonseca, Richard A. MacKenzie, Aslan Aslan, Sigit D. Sasmito, Mériadec Sillanpää, Thomas G. Cole, Joko Purbopuspito, Matthew W. Warren, Daniel Murdiyarso, Wolfram Mofu, Sahadev Sharma, Pham Hong Tinh, Pablo Riul, Andre S. Rovai. 2021. Macroecological patterns of forest structure and allometric scaling in mangrove forests
• Richard A. MacKenzie, Sahadev Sharma, Andre R. Rovai. 2021. Environmental drivers of blue carbon burial and soil carbon stocks in mangrove forests
• Andrew M. Liebhold, Faith T. Campbell, Doria R. Gordon, Qinfeng Guo, Nathan P. P. Havill, Bradley Kinder, Richard A. MacKenzie, David R. Lance, Dean E. Pearson, Sharlene E. Sing, Travis Warziniack, Robert C. Venette, Denys Yemshanov. 2021. The Role of International Cooperation in Invasive Species Research
• Ali Rouzbeh Kargar, Richard A. MacKenzie, Alexander Fafard, Ken W. Krauss, Jan Aardt. 2021. Surface elevation change evaluation in mangrove forests using a low‐cost, rapid‐scan terrestrial laser scanner
• Nicholas Povak, Christian P. Giardina, Paul F. Hessburg, Keith M. Reynolds, Brion Salter, Chris Heider, Ed Salminen, Richard A. MacKenzie. 2020. A decision support tool for the conservation of tropical forest and nearshore environments on Babeldaob Island, Palau
• Christian P. Giardina, Richard A. MacKenzie, Jonathan L. Deenik. 2020. Appendix A: Regional summaries - Hawaii and U.S
• Carl C. Trettin, Randy Kolka, Anne S. Marsh, Sheel Bansal, Erik Lilleskov, Patrick Megonigal, Marla J. Stelk, Graeme Lockaby, David V. D'Amore, Richard A. MacKenzie, Brian Tangen, Rodney Chimner, James Gries. 2020. Wetland and hydric soils
• Ali Rouzbeh Kargar, Richard A. MacKenzie, Maybeleen Apwong, Ethan Hughes, Jan van Aardt. 2020. Stem and root assessment in mangrove forests using a low-cost, rapid-scan terrestrial laser scanner
• Jacob Bukoski, Angie Elwin, Richard A. MacKenzie, Sahadev Sharma, Joko Purbopuspito, Benjamin Kopania, Maybeleen Apwong, Roongreang Poolsiri, Matthew D. Potts. 2020. The role of predictive model data in designing mangrove forest carbon programs
• Therese C. Frauendorf, Richard A. MacKenzie, Ralph W. Tingley, Dana M. Infante, Rana W. El‐Sabaawi. 2020. Using a space‐for‐time substitution approach to predict the effects of climate change on nutrient cycling in tropical island stream ecosystems
• Sahadev Sharma, Richard A. MacKenzie, Thida Tieng, Kim Soben, Natcha Tulyasuwan, Amomwan Resanond, Geoffrey Blate, Creighton M. Litton. 2020. The impacts of degradation, deforestation and restoration on mangrove ecosystem carbon stocks across Cambodia
• Pham Hong Tinh, Nguyen Thi Hong Hanh, Vo Van Thanh, Mai Sy Tuan, Pham Van Quang, Sahadev Sharma, Richard A. MacKenzie. 2020. A comparison of soil carbon stocks of intact and restored mangrove forests in northern Vietnam
• J. Boone Kauffman, Maria Fernanda Adame, Virni Budi Arifanti, Lisa M. Schile‐Beers, Angelo F. Bernardino, Rupesh K. Bhomia, Daniel C. Donato, Ilka C. Feller, Tiago O. Ferreira, Maria del Carmen Jesus Garcia, Richard A. MacKenzie, J. Patrick Megonigal, Daniel Murdiyarso, Lorae Simpson, Humberto Hernández Trejo. 2020. Total ecosystem carbon stocks of mangroves across broad global environmental and physical gradients
• B.D. Dudley, Flint F. Hughes, G.P. Asner, Jim Baldwin, Y. Miyazawa, H. Dulai, C. Waters, J. Bishop, N.R. Vaughn, J. Yeh, S. Kettwich, Richard A. MacKenzie, R. Ostertag, T. Giambelluca. 2020. Hydrological effects of tree invasion on a dry coastal Hawaiian ecosystem
• Ralph W. Tingley, Dana M. Infante, Richard A. MacKenzie, Arthur R. Cooper, Yin-Phan Tsang. 2019. Identifying natural catchment landscape influences on tropical stream organisms: classifying stream reaches of the Hawaiian Islands
• Fiona M. Soper, Richard A. MacKenzie, Sahadev Sharma, Thomas G. Cole, Creighton M. Litton, Jed P. Sparks. 2019. Non‐native mangroves support carbon storage, sediment carbon burial, and accretion of coastal ecosystems
• Ali Rouzbeh Kargar, Richard A. MacKenzie, Gregory P. Asner, Jan van Aardt. 2019. A density-based approach for leaf area index assessment in a complex forest environment using a terrestrial laser scanner
• Therese C. Frauendorf, Richard A. MacKenzie, Ralph W. Tingley, Abby G. Frazier, Michael H. Riney, Rana W. El‐Sabaawi. 2019. Evaluating ecosystem effects of climate change on tropical island streams using high spatial and temporal resolution sampling regimes
• Ayron M. Strauch, Richard A. MacKenzie, Christian P. Giardina, Gregory L. Bruland. 2018. Influence of declining mean annual rainfall on the behavior and yield of sediment and particulate organic carbon from tropical watersheds
• Sahadev Sharma, Kazuo Nadaoka, Masahiro Nakaoka, Wilfredo H. Uy, Richard A. MacKenzie, Daniel A. Friess, Miguel D. Fortes. 2017. Growth performance and structure of a mangrove afforestation project on a former seagrass bed, Mindanao Island, Philippines
• Bruce D. Dudley, Richard A. MacKenzie, Troy S. Sakihara, Michael H. Riney, Rebecca Ostertag. 2017. Effects of invasion at two trophic levels on diet, body condition, and population size structure of Hawaiian red shrimp
• Nicholas Povak, Paul F. Hessburg, Christian P. Giardina, Keith M. Reynolds, Chris Heider, Ed Salminen, R. Brion Salter, Richard A. MacKenzie. 2017. A watershed decision support tool for managing invasive species on Hawai‘i Island, USA
• Richard A. MacKenzie, Ayron M. Strauch, Tracy N. Wiegner, Steven L. Colbert, Edward G. Stets, Robert G. Streigl. 2017. Baseline and projected future aquatic carbon fluxes to nearshore waters in Hawai‘i
• Paul C. Selmants, Christian P. Giardina, James D. Jacobi, Lucas B. Fortini, Flint F. Hughes, Todd J. Hawbaker, Richard A. MacKenzie, Benjamin M. Sleeter, Zhiliang Zhu. 2017. Executive Summary—Baseline and projected future carbon storage and carbon fluxes in ecosystems of Hawai‘i
• Ayron M. Strauch, Christian P. Giardina, Richard A. MacKenzie, Chris Heider, Tom W. Giambelluca, Ed Salminen, Gregory L. Bruland. 2017. Modeled effects of climate change and plant invasion on watershed function across a steep tropical rainfall gradient
• Ayron M. Strauch, Richard A. MacKenzie, Ralph W. Tingley. 2017. Base flow-driven shifts in tropical stream temperature regimes across a mean annual rainfall gradient
• Raymond D. Ward, Daniel A. Friess, Richard H. Day, Richard A. MacKenzie. 2016. Impacts of climate change on mangrove ecosystems: a region by region overview
• R. K. Bhomia, Richard A. MacKenzie, D. Murdiyarso, S. D. Sasmito, J. Purbopuspito. 2016. Impacts of land use on Indian mangrove forest carbon stocks: Implications for conservation and management
• Richard A. MacKenzie, Patra B. Foulk, J. Val Klump, Kimberly Weckerly, Joko Purbospito, Daniel Murdiyarso, Daniel C. Donato, Vien Ngoc Nam. 2016. Sedimentation and belowground carbon accumulation rates in mangrove forests that differ in diversity and land use: a tale of two mangroves
• Ayron M. Strauch, Gregory L. Bruland, Richard A. MacKenzie, Christian P. Giardina. 2016. Soil and hydrological responses to wild pig (Sus scofa) exclusion from native and strawberry guava (Psidium cattleianum)-invaded tropical montane wet forests
• Megan Roberts, Ayron M. Strauch, Tracy Wiegner, Richard A. MacKenzie. 2016. Leaf litter breakdown of native and exotic tree species in two Hawaiian streams that differ in flow
• Rana W. El-Sabaawi, Therese C. Frauendorf, Piata S. Marques, Richard A. MacKenzie, Luisa R. Manna, Rosana Mazzoni, Dawn A. T. Phillip, Misha L. Warbanski, Eugenia Zandon. 2016. Biodiversity and ecosystem risks arising from using guppies to control mosquitoes
• Richard A. MacKenzie, Michele Dionne, Jeremy Miller, Michael Haas, Pamela A. Morgan. 2015. Community structure and abundance of benthic infaunal invertebrates in Maine fringing marsh ecosystems
• T.S. Sakihara, B.D. Dudley, Richard A. MacKenzie, J.P. Beets. 2015. Endemic grazers control benthic microalgal growth in a eutrophic tropical brackish ecosystem
• Ayron M. Strauch, Richard A. MacKenzie, Christian P. Giardina, Gregory L. Bruland. 2015. Climate driven changes to rainfall and streamflow patterns in a model tropical island hydrological system
• B. D. Dudley, Richard A. MacKenzie, T. S. Sakihara, H. Dulaiova, C. A. Waters, Flint F. Hughes, R. Ostertag. 2014. Influences of N-fixing and non-N-fixing vegetation and invasive fish on water chemistry of Hawaiian anchialine ponds
• Phil G. Cannon, Marjorie Falanruw, Francis Ruegorong, Richard A. MacKenzie, Katie Friday, Amy Ross-Davis, Sara M. Ashiglar, Ned B. Klopfenstein, Zhangfeng Liu, Mohammad Golabi, Chancy Thomas Iyekar. 2014. The causes of mangrove death on Yap, Palau, Pohnpei and Kosrae [Chapter II]
• Ayron M. Strauch, Richard A. MacKenzie, Gregory L. Bruland, Ralph Tingley, Christian P. Giardina. 2014. Climate change and land use drivers of fecal bacteria in tropical Hawaiian rivers
• C. M. Dalton, A. Mokiao-Lee, T. S. Sakihara, M. G. Weber, C. A. Roco, Z. Han, B. Dudley, Richard A. MacKenzie, N. G. Hairston Jr. 2013. Density- and trait-mediated top-down effects modify bottom-up control of a highly endemic tropical aquatic food web
• Richard A. MacKenzie, Tracy N. Wiegner, Frances Kinslow, Nicole Cormier, Ayron M. Strauch. 2013. Leaf-litter inputs from an invasive nitrogen-fixing tree influence organic-matter dynamics and nitrogen inputs in a Hawaiian river
• Tara Holitzki, Richard A. MacKenzie, Tracy N. Wiegner, Karla J. McDermid. 2013. Differences in ecological structure, function, and native species abundance between native and invaded Hawaiian streams
• Richard A. MacKenzie, Caitlin Kryss. 2013. Impacts of exotic mangroves and mangrove control on tide pool fish assemblages
• Richard A. MacKenzie, Gregory L. Bruland. 2012. Nekton communities in Hawaiian coastal wetlands: The distribution and abundance of introduced fish species
• Tracy N. Wiegner, Richard A. MacKenzie, Trisha B. Atwood. 2012. Effects of hydrological forcing on the structure of a tropical estuarine food web
• D.C. Donato, J.B. Kauffman, Richard A. MacKenzie, A. Ainsworth, A.Z. Pfleeger. 2012. Whole-island carbon stocks in the tropical Pacific: Implications for mangrove conservation and upland restoration
• Richard A. MacKenzie, Nicole Cormier. 2012. Stand structure influences nekton community composition and provides protection from natural disturbance in Micronesian mangroves
• Trisha B. Atwood, Tracy N. Wiegner, Jason P. Turner, Richard A. MacKenzie. 2010. Potential effects of an invasive nitrogen-fixing tree on a Hawaiian stream food web
• Gregory L. Bruland, Richard A. MacKenzie. 2010. Nitrogen source tracking with δ15N content of coastal wetland plants in Hawaii
• Tracy N. Wiegner, Randee L. Tubal, Richard A. MacKenzie. 2009. Bioavailability and export of dissolved organic matter from a tropical river during base- and stormflow conditions
• Meris Bantilan-Smith, Gregory L. Bruland, Richard A. MacKenzie, Adonia R. Henry, Christina R. Ryder. 2009. A comparison of the vegetation and soils of natural, restored, and created coastal lowland wetlands in Hawai‘i
• Richard A. MacKenzie, M. Dionne. 2008. Habitat heterogeneity: importance of salt marsh pools and high marsh surfaces to fish production in two Gulf of Maine salt marshes

• Program
  

  Institute of Pacific Islands Forestry (Pacific Zone – Hawaii and U.S. Affiliated Pacific Islands)

  https://research.fs.usda.gov/psw/programs/ipif
  Station

  Pacific Southwest Research Station
• Project
  

  Decision Support to Improve Ridge-to-Reef Stewardship in an Era of Rapid Global Change

  https://research.fs.usda.gov/psw/projects/hawaii-dst
  Station

  Pacific Southwest Research Station

Other Publications

• Fact Sheet
  

  PACific MANgrove Monitoring Network (PACMAN)

  https://research.fs.usda.gov/psw/understory/pacific-mangrove-monitoring-network-pacman

Multimedia

• Webinars

  Science x Water: Forests and Water Quality

  https://research.fs.usda.gov/products/multimedia/webinars/science-x-water-forests-and-water-quality
• Webinars

  Impacts of sea level rise on blue carbon ecosystems

  https://research.fs.usda.gov/psw/products/multimedia/webinars/impacts-sea-level-rise-blue-carbon-ecosystems

• University of Wisconsin at Milwaukee, Ph.D., Invertebrate Zoology, Biogeochemistry minor, 2001
• University of Wisconsin at Eau Claire, B.S., Zoology, 1993