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Figure 6 | BMC Evolutionary Biology

Figure 6

From: The evolution of activity breaks in the nest cycle of annual eusocial bees: a model of delayed exponential growth

Figure 6

Observed activity breaks of L. malachurum colonies in Wuerzburg, Germany. Data is based on the nesting activities of 1138 nests within 13 observation patches (within an area of 4 km2) near Wuerzburg in northern Bavaria in 2004. Nesting activity (defined as either open nest entrance, burrowing activity, and/or the presence of a guarding bee) of each colony was recorded every other day during the whole flight season of L. malachurum starting in the beginning of April and lasting until the end of September (Weissel & al., in revision). Each point of the figure represents a specific combination of start and end date (Julian days) of an activity break (i.e. a sequence of days, when the nest of a single colony was closed with no signs of activity outside the nest). Both, nest closure and reopening was more or less synchronous among the nests. Symbols: + first break of a colony, ○ second break of a colony; × third break of a colony.

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