Pollen packing affects the function of pollen on corbiculate bees but not non-corbiculate bees

Alspach PA, Pyke NB, Morgan CGT, Ruth JE (1992) Influence of application rates of bee-collected pollen on the fruit size of kiwifruit. N Z J Crop Hortic Sci 19:19–24

Beattie A (1971) Pollination mechanisms in Viola. New Phytol 70:343–360

Bosch J (1992) Floral biology and pollinators of three co-occurring Cistus species (Cistaceae). Bot J Linn Soc 109:39–55

Darwin C (1864) On the sexual relations of the three forms of Lythrum salicaria. J Proc Linn Soc Lond Bot 8:169–196

Fournier DA, Skaug HJ, Ancheta J et al (2012) AD model builder: using automatic differentiation for statistical inference of highly parameterized complex nonlinear models. Optim Methods Softw 27:233–249

Hall DB (2004) Zero-inflated poisson and binomial regression with random effects: a case study. Biometrics 56:1030–1039

Harder LD, Wilson WG (1998) Theoretical consequences of heterogeneous transport conditions for pollen dispersal by animals. Ecology 79:2789–2807

Jesson LK, Barrett SCH (2005) Experimental tests of the function of mirror-image flowers. Biol J Linn Soc 85:167–179

Kendall DA (1973) The viability and compatibility of pollen on insects visiting apple blossom. J Appl Ecol 10:847–853

Kraai A (1962) How long do honey-bees carry germinable pollen on them? Euphytica 11:53–56

Mesquida J, Renard M (1989) Étude de l“aptitude à germer in vitro du pollen de colza (Brassica napus L.) récolté par l”abeille domestique (Apis mellifica L.). Apidologie 20:197–205

Michener C (1979) Biogeography of the bees. Ann Mo Bot Gard 66:277–347

Michener CD (1999) The corbiculae of bees. Apidologie 30:67–74

Michener CD (2000) The bees of the world. Johns Hopkins University, Baltimore

Min YY, Agresti A (2005) Random effect models for repeated measures of zero-inflated count data. Stat Model 5:1–19

R Development Core Team (2013) R: A language and environment for statistical computing. R foundation for statistical computing, Vienna, Austria. http://www.R-project.org/

Stanley RG, Linskens HF (1974) Pollen: biology, biochemistry, management. Springer, Berlin

Thomson JD, Plowright RC (1980) Pollen carryover, nectar rewards, and pollinator behavior with special reference to Diervilla lonicera. Oecologia 46:68–74

Thomson J, Wilson P, Valenzuela M, Malzone M (2000) Pollen presentation and pollination syndromes, with special reference to Penstemon. Plant Species Biol 15:11–29

Thorp R (1979) Structural, behavioral, and physiological adaptations of bees (Apoidea) for collecting pollen. Ann Mo Bot Gard 66(4):788–812

Thorp R (2000) The collection of pollen by bees. Plant Syst Evol 222:211–223

Tyagi RK, Rangaswamy NS (1993) Screening of pollen grains vis-à-vis whole plants of oilseed brassicas for tolerance to salt. Theor Appl Genet 87:343–346

Vaissière BE, Malabœuf F, Rodet G (1996) Viability of cantaloupe pollen carried by honeybees Apis mellifera varies with foraging behavior. Naturwissenschaften 83:84–86

Vaknin Y, Gan-Mor S, Bechar A et al (2000) The role of electrostatic forces in pollination. Plant Syst Evol 222:133–142

Vallejo-Marín M, Manson JS, Thomson JD, Barrett SCH (2009) Division of labour within flowers: heteranthery, a floral strategy to reconcile contrasting pollen fates. J Evol Biol 22:828–839

Westerkamp C (1991) Honeybees are poor pollinators—why? Plant Syst Evol 177:71–75