Researchers from University of Arizona report details of new studies and findings in the area of ecology and sociobiology.

Ecology, Environment & Conservation | November 13, 2009 | Copyright

According to a study from the United States, "Division of labor is common across social groups. In social insects, many studies focus on the differentiation of in-nest and foraging workers and/or the division of foraging tasks."

"Few studies have specifically examined how workers divide in-nest tasks. In the bumble bee, Bombus impatiens, we have shown previously that smaller workers are more likely to feed larvae and incubate brood, whereas larger workers are more likely to fan or guard the nest. Here, we show that in spite of this, B. impatiens workers generally ...

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