References
- Andrada, A. C., Telleria, M. C. 2005. Pollen collected by honeybees (Apis mellifera L.) from south of Calden district (Argentina): botanical origin and protein content. Grana 44: 115-122.
- Avni, D., Dag, A., Shafir, S. 2009. The effect of surface area of pollen patties fed to honeybee (Apis mellifera) colonies on their consumption, brood production and honey yields. J. Apic. Res. Bee World 48: 23-28.
- Bilisik, A., Cakmak, I., Bicakci, A., Malyer, H. 2008. Seasonal variation of collected pollen loads of honeybees (Apis mellifera L. anatoliaca). Grana 47: 70-77.
- Calderone, N. W. 1993. Genotypic effects on the response of worker honeybees, Apis mellifera, to the colony environment. Anim. Behav. 46: 403-404.
- Camazine, S. 1993. The regulation of pollen foraging by honey-bees—how foragers assess the colony need for pollen. Behav. Ecol. Sociobiol. 32: 265-272.
- Camazine, S., Crailsheim, K., Hrassnigg, N., Robinson, G. E., Leonhard, B., Kropiunigg, H. 1998. Protein trophallaxis and the regulation of pollen foraging by honeybees (Apis mellifera L.). Apidol. 29: 113-126.
- Chiarucci, A., Wilson, J. B., Anderson, B. J., De Dominicis, V. 1999. Cover versus biomass as an estimate of species abundance: does it make a difference to the conclusions? J. Veg. Sci. 10: 35-42.
- Cook, S. M., Awmack, C. S., Murray, D. A., Williams, I. H. 2003. Are honeybees' foraging preferences affected by pollen amino acid composition? Ecol. Entomol. 28: 622-627.
- Day, S., Beyer, R., Mercer, A., Ogden, S. 1990. The nutrient composition of honeybee-collected pollen in Otago, New Zealand. J. Apic. Res. 29: 138-146.
- Dimou, M., Thrasyvoulou, A. 2007a. A comparison of three methods for assessing the relative abundance of pollen resources collected by honeybee colonies. J. Apic. Res. 46: 144-148.
- Dimou, M., Thrasyvoulou, A. 2007b. Seasonal variation in vegetation and pollen collected by honeybees in Thessaloniki, Greece. Grana 46: 292-299.
- Dimou, M., Thrasyvoulou, A. 2009. Pollen analysis of honeybee rectum as a method to record the bee pollen flora of an area. Apidol. 40: 124-133.
- Dimou, M., Thrasyvoulou, A., Tsirakoglou, V. 2006. Efficient use of pollen traps to determine the pollen flora used by honeybees. J. Apic. Res. 45: 42-46.
- Dreller, C., Page, R. E., Fondrk, M. K. 1999. Regulation of pollen foraging in honeybee colonies: effects of young brood, stored pollen, and empty space. Behav. Ecol. Sociobiol. 45: 227-233.
- Fewell, J. H., Winston, M. L. 1992. Colony state and regulation of pollen foraging in the honey-bee, Apis-MelliferaL. Behav. Ecol. Sociobiol. 30: 387-393.
- Frisch, K.v. 1967. The dance language and orientation of bees. The Belknap Press of Harvard University Press, Cambridge, MA, pp. 28-56.
- Gary, N. E. 1996. Activities and behavior of honeybees. In: Graham, J. M., ed. The hive and the honeybee. Dadant and Sons, Hamilton, Illinois, pp. 185-264.
- Kalev, H., Dag, A., Shafir, S. 2002. Feeding pollen supplements to honeybee colonies during pollination of sweet pepper in enclosures. Am. Bee J. 142: 675-679.
- Keasar, T., Shmida, A. 2009. An evaluation of Israeli forestry trees and shrubs as potential forage plants for bees. Isr. J. Plant Sci. 57: 49-64.
- Noy Meir, E., Koniak, G., Shizer, D. 2006. Research report for beekeeping department management. The Robert H. Smith Institute of Plant Protection and Genetics in Agriculture, Hebrew Univ., Rehovot.
- Pernal, S. F., Currie, R. W. 2001. The influence of pollen quality on foraging behavior in honeybees (Apis mellifera L.). Behav. Ecol. Sociobiol. 51: 53-68.
- Schmidt, J. O., Buchmann, S. L. 1999. Other products of the hive. In: Graham, J. M., ed. The hive and the honeybee. Dadant and Sons, Hamilton, IL, pp. 928-977.
- Schmidt, J. O., Johnson, B. E. 1984. Pollen feeding preference of Apis-Mellifera (Hymenoptera, Apidae) a polylectic bee. Southwest. Entomol. 9: 41-47.
- Seeley, T. D. 1995. The wisdom of the hive: the social physiology of honeybee colonies. Harvard University Press, Cambridge, MA, xiv + 295 pp.
- Shmida, A. 1997. Handbook of wildflowers of Israel Mediterranean flora. Keter, Jerusalem.
- Sizling, A. L., Storch, D., Sizlingova, E., Reif, J., Gaston, K. J. 2009. Species abundance distribution results from a spatial analogy of central limit theorem. Proc. Natl. Acad. Sci. USA 106: 6691:6695.
- Stanley, R. G., Linskens, H. F. 1974. Pollen: biology, biochemistry, and management. Springer-Verlag, New York.
- Winston, M. L. 1987. The biology of the honeybee. Harvard University Press, Cambridge, MA, pp. 169-180.