Brain composition and scaling in social bee species differing in body size

To determine the possible implication of antioxidant enzymes in the long-term survival of honey bee spermatozoa in the spermatheca, we measured the activities of three of these

or to intraspecific variation in pollen grain volume between cultivars of alfalfa (Karise et al., 2006 ). Whatever the reason, the differences probably do not affect our main

Since the pollen protein concentration – one of the most important factors influencing larval growth and body size in bees (e.g. Roulston and Cane, 2002 ) – is highly conserved

Patriline frequencies (%) and the total numbers of worker offspring genotyped for each queen that was instrumentally inseminated with semen of LD (25%) and SD (75%). The drone

The significant positive correla- tion of drone body size and sperm number is also supported by the fact that Africanized honeybees in South America have signifi- cantly lower

Relationship between Andrena agilissima female body size and total load (pollen and nectar) transported to the nest during each trip (n = 117)N. Daily variation in the type of load (n

Foragers showed stronger phototactic response only in the trial with bees from colony HT in which phototaxis was tested with the lower light intensity and in which the tested

Megacicadas show a temperature-mediated converse Bergmann cline in body size (larger in the warmer south) but no body size difference between 13- and 17-year species pairs... P EER