Several New Aspects of the Foraging Behavior of Osmia cornifrons in an Apple Orchard

Figure 1

Activity of O. cornifrons (black circles) during 4 days at a nesting site in the Nagano orchard. Ambient temperature (${}_{}{}^{°}\text{C}$, white circles), solar radiation (MJ/m², cross), and wind speed (m/s, triangles) are also shown. (a) 30th of April, 2007, (b) 29th of April, 2008, (c) 2nd of May, 2007, and (d) 1st of May, 2008.

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