Publications and Resources for Gardeners

Peer-Refereed Publications Resulting from Research in the Garden Ecology Lab

Authors' names in bold text indicate contributions from Garden Ecology Lab members. Single asterisks (*) denote contributions by graduate students and double asterisks (**) denote contributions by undergraduate students.

  1. Bell, N.*, Ascher, J.S., Hayes, J.M.*, Mead, M.** & Langellotto, G. A. (2023). Assessing three decades of urban garden bee studies. Frontiers in Sustainable Cities – Urban Greening. 5. doi: 10.3389/frsc.2023.1102360 
  2. Mhuireach, G., A, Van Den Wymelenberg, K. G., & Langellotto, G. A. (2023). Garden soil bacteria transiently colonize gardeners’ skin after direct soil contact. Urban Agriculture & Regional Food Systems. 8(1):1-22.
  3. Anderson, A.*, Costner, L.**, Best, L., Langellotto, G. (2022). The bee fauna associated with Pacific Northwest (U.S.A.) native plants for gardens. Conservation Science and Practice, 4(10), e12801.
  4. Nelson, M.*, Mhuireach, G., & Langellotto, G. A. (2022). Excess fertility in residential scale urban agriculture soils in two western Oregon cities, USA. Urban Agriculture & Regional Food Systems. 7(1): e20027. 
  5. Anderson, A.*, I. Messer**, G. A. Langellotto. 2021. Gardeners’ perceptions of native plants are influenced by ecological information and garden group affiliation. HortTechnology 31: 458-469.
  6. Langellotto, G.A., Melathopoulos, A.P., Messer, I. **, Anderson, A.*, McClintock, N. 2018. Garden pollinators and the potential for ecosystem service flow to urban and peri-urban agriculture. Sustainability, 10(6), 2047.
  7. Langellotto, G.  An analysis of bee communities in home and community gardens. 2017. Acta Hort 1189: 491-496. 

Other Peer-Refereed Publications

  1. Hall, D.M., G. R. Camilo, R. K. Tonietto, J. Ollerton, K. Ahrne, M. Arduser, J. S. Ascher, K. C. R. Baldock, R. E. Fowler, G. W. Frankie, D. Goulson, B. Gunnarsson, M. E. Hanley, J. I. Jackson, G. Langellotto, D. Lowenstein, E. S. Minor, S. M. Philpott, S. G. Potts, M. H. Sirohi, E. M. Spevak, G. Stone, C. G. Threlfall.  2017. The city as a refuge for insect pollinators: conservation for the city. Conservation Biology 31: 24-29.
  2. Bradley, L.K, B.K. Behe, N.R. Bumgarner, C.D. Glen, J.L. Donaldson, E.M. Bauske, S. Dorn, G. Langellotto. 2017. Assessing the economic impacts of consumer horticulture. HortTechnology 27: 591-598.
  3. Langellotto, G.A., Detweiler, A.J., Sheng, S. 2018. Planning large conferences: tips and tricks. Journal of Extension, [On-line] 56(3), 3TOT6. Available at: 
  4. Langellotto, G.A., Groth, C. 2018. Planning tours as part of a professional conference: lessons learned. Journal of Extension, [On-line] 56(3), 3TOT7. Available at:
  5. John, Deborah, T. Winfield, L. Etuk, P. Hystad, G. Langellotto, M. Manore, K. Gunter. 2017. Community-engaged attribute mapping: exploring resources and readiness to change the rural context for obesity prevention.  Progress in Community Health Partnerships: Research, Education, and Action 1: 183-196.
  6. Bradley, L., T. Bewick, G. Langellotto, E. Bauske and N. Bumgarner. 2017. United States initiative for consumer horticulture: a strategic plan. Acta Hort 1189: 407-410.
  7. Bradley, L.K., E.M. Bauske, T.A. Bewick, J.R. Clark, R.E. Durham, G. Langellotto, M.H. Meyer, M. Pooler, S. Dorn. 2016. Developing a national strategic plan for consumer horticulture. HortTechnology 26: 372–378 
  8. Cuong, N.L., G. A. Langellotto, T.L. Thuy, V. Quynh, N.T.T. Thuy, A.A. Barrion, Y.H. Chen. 2016. Arthropod diversity and abundance in wild rice, Oryza rufipogon, in the Mekong, Delta, Vietnam. Annals of the Entomological Society of America 109: 542-554.
  9. Langellotto, G.A. and S. Dorn. 2016. An online resource site for Extension Master Gardener coordinators. Journal of Extension [On-line] 54(3) Article 3TOT3. Available at:
  10. Langellotto, G.A., D. Moen, T. Straub, S. Dorn. 2015. The first nationally unifying mission statement and program standards for Extension Master Gardener programs at Land Grant Universities. Journal of Extension [On-line] 53(1) Article 1IAW1. Available at:
  11. Langellotto, G.A. 2014. What are the economic costs and benefits of home vegetable gardens? Journal of Extension [On-line] 52(2) Article 2RIB5. Available at:
  12. Fry, J. and G.A. Langellotto.  2013. Generating potential solutions for dealing with problem volunteers. Journal of Extension [On-line] 51(6) Article 6TOT3. Available at:
  13. Cuong, N.L. V. Quynh, T.L. Thuy, N.T.T. Thuy, L.T.N. Huong, A.T. Barrion, G.A. Langellotto, Y.H. Chen. 2013. Potential effects of Bt transgene flow on arthropod diversity and abundance in wild rice, Oryza rufipogon, Mekong Delta, Vietnam.  Omonrice 19: 77-88.
  14. Chen, Y.H., G.A. Langellotto, A.T. Barrion and N.L. Cuong. 2013.  Cultivation of domesticated rice alters arthropod biodiversity and community composition. Annals of the Entomological Society of America 106:100-110.
  15. Langellotto-Rhodaback, G. A. and W. Miller.  2012. Demographics and perceptions of Master Gardener volunteers in Oregon. International Journal of Volunteer Administration Vol. XXIV, No. 2. Available at: 
  16. Matteson, K.C.* and G.A. Langellotto. 2012. Evaluating community gardens as habitat for an urban butterfly.  Cities and the Environment. Vol. 5: Iss. 1, Article 10.  Available at: Available at:
  17. Langellotto, G.A. and A. Gupta*. 2012. Gardening increases vegetable consumption in school-aged children: a meta-analytical synthesis. HortTechnology. 22: 430-445.
  18. Matteson, K. C.* and G.A. Langellotto.  2011.  Small scale additions of native plants fail to increase pollinator diversity in urban gardens. Insect Conversation and Diversity. 4: 89-98.
  19. Schaumburg, K.*, W.M. Giuliano and G.A. Langellotto.  2011.  Avian-habitat relationships in urban and suburban tidal marshes of Connecticut. Urban Habitats [On-line] 6. Available at:
  20. Langellotto-Rhodaback, G.A. 2010. Enrollment, retention and activity in an online Master Gardener Course. Journal of Extension [On-line] 48(4) Article 4RIB3. Available at:
  21. Matteson, K.C.* and Langellotto, G.A.  2010. Determinates of inner city butterfly and bee species richness Urban Ecosystems 13: 333-347.
  22. Matteson, K.C.* and G.A. Langellotto.  2009.  Bumble bee abundance in New York City community gardens: implications for urban agriculture.  Cities and the Environment. Vol. 2: Iss. 1, Article 5. Available at   
  23. Werrell, P.A.**, G.A. Langellotto, S.U. Morath* and K.C. Matteson*. 2009. The Influence of Garden Size and Floral Cover on Pollen Deposition in Urban Community Gardens. Cities and the Environment. Vol. 2: Iss. 1, Article 6.  
  24. Fetridge, E.*, J.S. Ascher and G.A. Langellotto.  2008. The bee fauna of residential gardens in a suburb of New York City (Hymenoptera: Apoidea).  Annals of the Entomological Society of America 101: 1067-1077.
  25. Matteson, K.C.*, J.S. Ascher and G.A. Langellotto. 2008. Richness and composition of the bee fauna of urban gardens in New York City (Hymenoptera: Apoidea). Annals of the Entomological Society of America 101: 140-150.
  26. Langellotto, G. A. and R. F. Denno. 2006. Refuge from cannibalism in complex structured habitats: implications for the accumulation of invertebrate predators. Ecological Entomology. 31: 575-581.
  27. Langellotto, G. A., J. A. Rosenheim and M. R. Williams**. 2006. Assessing trophic interactions in a guild of primary and facultative hyperparasitoids: stable isotope analysis. Oecologia. 150: 291-299.
  28. Rosenheim, J. A., K. Steinmann**, G. A. Langellotto and A. G. Zink. 2006. Probing the enigmatic impact of Lygus hesperus on cotton: is the insect, the plant, or the human observer a source of variability? Environmental Entomology 35: 1141-1153.
  29. Langellotto, G. A., J. A. Rosenheim and M. R. Williams**. 2005. Enhanced carbon enrichment in parasitoids (Hymenoptera): a stable isotope study. Annals of the Entomological Society of America.98: 205-213.
  30. Denno, R. F., M. S. Mitter, G. A. Langellotto, C. Gratton and D. L. Finke. 2004. Interactions between a hunting spider and a web-builder: consequences of intraguild predation and cannibalism for prey suppression. Ecological Entomology 29:566-577.
  31. Langellotto, G. A. and R. F. Denno. 2004. Responses of invertebrate natural enemies to complex structured habitats: a meta-analytical synthesis. Oecologia 139:1-10.
  32. Denno, R. F., C. Gratton, M. A. Peterson, G. A. Langellotto, D. L. Finke and A. F. Huberty. 2002. Bottom-up forces mediate natural enemy impact in a phytophagous insect community. Ecology 83:1443–1458.
  33. Langellotto, G. A. and R. F. Denno. 2001. Benefits of dispersal in patchy environments: mate location by males of a wing-dimorphic insect. Ecology 82:1870–1878..
  34. Denno, R. F., M. A. Peterson, C. Gratton, J. Cheng, G. A. Langellotto, A. F. Huberty and D. L. Finke. 2000. Feeding-induced changes in plant quality mediate interspecific competition between sap-feeding herbivores. Ecology: 81:1814–1827.
  35. Langellotto, G. A., R. F. Denno and J. R. Ott. 2000. A trade-off between flight capability and reproduction in males of a wing-dimorphic insect. Ecology 81:865–875.
  36. Denno, R. F., G. K. Roderick, M. A. Peterson, A. F. Huberty, H. G. Döbel, M. D. Eubanks, J.E. Losey and G. A. Langellotto. 1996. Habitat persistence underlies intraspecific variation in the dispersal strategies of planthoppers. Ecological Monographs 66:389–408.