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peer-reviewed research article

Native bees are a rich natural resource in urban California gardens

authors

Gordon W. Frankie, UC Berkeley
Robbin W. Thorp, UC Davis
Jennifer Hernandez, UC Berkeley
Mark Rizzardi, Humboldt State University
Barbara Ertter, UC Berkeley
Jaime C. Pawelek, UC Berkeley
Sara L. Witt, UC Berkeley
Mary Schindler, UC Berkeley
Rollin Coville, UC Berkeley
Victoria A. Wojcik, UC Berkeley

publication information

California Agriculture 63(3):113-120. DOI: 10.3733/ca.v063n03p113. July-September 2009.

abstract

Evidence is mounting that pollinators of crop and wildland plants are declining worldwide. Our research group at UC Berkeley and UC Davis conducted a 3-year survey of bee pollinators in seven cities from Northern California to Southern California. Results indicate that many types of urban residential gardens provide floral and nesting resources for the reproduction and survival of bees, especially a diversity of native bees. Habitat gardening for bees, using targeted ornamental plants, can predictably increase bee diversity and abundance, and provide clear pollination benefits.

author affiliations

G.W. Frankie is Professor, Department of Environmental Science, Policy and Management, UC Berkeley; R.W. Thorp is Professor Emeritus, Department of Entomology, UC Davis; J. Hernandez is Ph.D. Researcher, Department of Environmental Science, Policy and Management, UC Berkeley; M. Rizzardi is Professor, Department of Mathematics, Humboldt State University, UC Berkeley; B. Ertter is Curator Emeritus, Jepson Herbarium, UC Berkeley; J.C. Pawelek are Research Assistants, Department of Environmental Science, Policy and Management, UC Berkeley; S.L. Witt are Research Assistants, Department of Environmental Science, Policy and Management, UC Berkeley; M. Schindler are Research Assistants, Department of Environmental Science, Policy and Management, UC Berkeley; R. Coville is Environmental Entomologist/Photographer, UC Berkeley; V.A. Wojcik is Graduate Researcher, Department of Environmental Science, Policy and Management, UC Berkeley, All bee photos were taken by Rollin Coville.

author notes

We thank the California Agricultural Experiment Station for support of this research; Maggie Przybylski, Sue Holland, Katie Montgomery, Kristal Hinojosa and Kloie Karels for assistance in collecting bees and bee-frequency counts; and Peter Kevan for reading a draft of the manuscript. Finally, we thank the numerous gardeners, managers and directors of the gardens we monitored for their cooperation during survey periods.

References

Allen-Wardell G, Bernhardt P, Bitner R, et al. The potential consequences of pollinator declines on the conservation of biodiversity and stability of food crop yields. Conserv Biol. 1998. 12:17. doi:10.1046/j.1523-1739.1998.97154.x [CrossRef]

Brenzel KN. Sunset Western Garden Book 2007. Menlo Park, CA:Sunset Pub. 768p.

Cane JH. Johnson EA, Klemens MW. Bees, pollination and the challenges of sprawl. Nature in Fragments 2005. New York:Columbia Univ Pr. 382p.

Daily G. Nature's Services: Societal Dependence on Natural Ecosystems 1997. Covelo, CA:Island Pr. 392p.

Eremeeva NI, Sushchev DV. Structural changes in the fauna of pollinating insects in urban landscapes. Russ J Ecol. 2005. 36:65. doi:10.1007/s11184-005-0070-6 [CrossRef]

Frankie GW, Ehler LE. Ecology of insects in urban environments. Ann Rev Entomol. 1978. 23:87. doi:10.1146/annurev.en.23.010178.002055 [CrossRef]

Frankie GW, Thorp RW, Schindler M, et al. Ecological patterns of bees and their host ornamental flowers in two northern California cities. J Kansas Entomol Soc. 2005. 78:46. doi:10.2317/0407.08.1 [CrossRef]

Grissell E. Insects and Gardens 2001. Portland, OR:Timber Pr. 345p.

Hernandez JL, Frankie GW, Thorp RW. Diversity and abundance of native bees Hymenoptera: Apoidea in a newly constructed urban garden in Berkeley 2009. California:J Kansas Entomol Soc. accepted

Kremen C, Williams NM, Bugg RL, et al. The area requirements of an ecosystem service: Crop pollination by native bee communities in California. Ecol Letter. 2004. 7:19. doi:10.1111/j.1461-0248.2004.00662.x [CrossRef]

Kremen C, Williams NM, Thorp RW. Crop pollination from native bees at risk from agricultural intensification. PNAS. 2002. 99:8. doi:10.1073/pnas.262413599 [CrossRef]

Louv R. Last Child in the Woods: Saving Our Children from Nature-Deficit Disorder 2008. New York:Algonquin. 391p.

Matteson KC, Ascher JS, Langellotto GA. Bee richness and abundance in New York City urban gardens. Ann Entomol Soc Am. 2008. 101:50. doi:10.1603/0013-8746(2008)101[140:BRAAIN]2.0.CO;2 [CrossRef]

NRC National Research Council. Status of Pollinators in North America 2007. Washington, DC:Nat Acad Pr. 307p.

Owen J. The Ecology of a Garden: The First Fifteen Years 1991. Cambridge, Eng.:Cambr Univ Pr. 403p.

Tallamy DW. Bringing Nature Home 2009. Portland, OR:Timber Pr. 358p.

Thorp RW, Frankie GW, Barthell J, et al. Long-term studies to gauge effect of invading bees. Cal Ag. 1992. 46(1):3.

Wojcik VA, Frankie GW, Thorp RW, Hernandez J. Seasonality in bees and their floral resource plants at a constructed urban bee habitat in Berkeley, California. J Kansas Entomol Soc. 2008. 81:28. doi:10.2317/JKES-701.17.1 [CrossRef]