“We Need Bees” Citations and References

1. Eilers, E. J., C. Kremen, S. S. Greenleaf, A. K. Garber and A.-M. Klein. 2011. Contribution of pollinator-mediated crops to nutrients in the human food supply. PLoS One 6(6):e21363.

2. IPBES (2016). The Assessment Report of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services on Pollinators, Pollination and Food Production. Edited by S. G. Potts, V. L. Imperatriz-Fonseca, and H. T. Ngo. 552 pp. Bonn, Germany: Secretariat of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services.

3. Brittain, C., C. Kremen, A. Garber, and A.-M. Klein. 2014. Pollination and plant resources change the nutritional quality of almonds for human health. PLoS One 9(2):e90082. doi:10.1371/journal.pone.0090082

4. Klein, A.-M., B. E. Vaissiere, J. H. Cane, I. Steffan-Dewenter, S. A. Cunningham, C. Kremen, and T. Tscharntke. 2007. Importance of pollinators in changing landscapes for world crops. Proceedings of the Royal Society of London B: Biological Sciences 274(1608):303–313.

5. Rader, R., I. Bartomeus, L. A. Garibaldi, M. P. Garratt, B. G. Howlett, R. Winfree, S. A. Cunningham, M. M. Mayfield, A. D. Arthur, G. K. Andersson, and R. Bommarco. 2016. Non-bee insects are important contributors to global crop pollination. Proceedings of the National Academy of Sciences 113(1):146–151.

6. “Colony Loss 2015-2016: Preliminary Results,” Bee Informed Partnership,

7. Hatfield, R. Colla, S. Jepsen S. Richardson, L. and Thorp, R. 2015. “IUCN Assessments for North American Bombus spp.” 56 pp.

8. Cameron, S., J. D. Loizer, J. P. Strange, J. B. Koch, N. Cordes, L. F. Solter, and T. L Griswold. 2011. Patterns of widespread declines in North American bumble bees. Proceedings of the National Academy of Sciences 108:662–667.

9. “Species Profile for Rusty patched bumble bee (Bombus affinis),” U.S. Fish and Wildlife Service,

10. NatureServe Explorer 2017.

11. Pelton, E., S. Jepsen, C. Shultz, C. Fallon, and S. H. Black. 2016. State of the Monarch Butterfly Overwintering Sites in California. 40 pp. Portland, OR: The Xerces Society for Invertebrate Conservation.

12. Semmens, B. X., D. J. Semmens, W. E. Thogmartin, R. Wiederholt, L. López-Hoffman, J. E. Diffendorfer, J. M. Pleasants, K. S. Oberhauser, and O. R. Taylor. 2016. Quasi-extinction risk and population targets for the Eastern, migratory population of monarch butterflies (Danaus plexippus). Scientific Reports 6:23265.

13. Sardiñas, H. S., and C. Kremen. 2015. Pollination services from field-scale agricultural diversification may be context-dependent. Agriculture, Ecosystems & Environment 207(1):17–25.

14. Kennedy, C. M., E. Lonsdorf, M. C. Neel, N. M. Williams, T. H. Ricketts, R. Winfree, R. Bommarco, C. Brittain, A. L. Burley, D. Cariveau and L. G. Carvalheiro. 2013. A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems. Ecology Letters 16(5):584–599.

15. Kremen, C., N. M. Williams, R. L. Bugg, J. P. Fay, and R. W. Thorp. 2004. The area requirements of an ecosystem service: crop pollination by native bee communities in California. Ecology Letters 7(11):1109–1119.

16. Morandin, L. A., and C. Kremen. 2013. Hedgerow restoration promotes pollinator populations and exports native bees to adjacent fields. Ecological Applications 23(4):829–839.