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Browsing Research Articles (Zoology and Entomology) by Author "Radloff, Sarah E."

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Clinal nature of the frequencies of ovarioles and spermathecae in Cape worker honeybees, Apis mellifera capensis

Phiancharoen, Mananya; Pirk, Christian Walter Werner; Radloff, Sarah E.; Hepburn, H. Randall (EDP Sciences, 2010-03)

It was determined that 300 Cape workers, Apis mellifera capensis (collected from each of 6 colonies at each of 5 localities about 200 km apart along an 800 km transect in the Western and Eastern Cape Provinces, South ...
Hetero-specific queen retinue behavior of worker bees in mixed-species colonies of Apis cerana and Apis mellifera

Yang, Ming-Xian; Tan, Ken; Radloff, Sarah E.; Pirk, Christian Walter Werner; Hepburn, H. Randall (EDP Sciences, 2010)

The retinue behavior of worker bees of Apis cerana cerana and Apis mellifera ligustica in two types of mixed-species colonies were studied to determine whether observed behaviors are pre- or post-speciation developments. ...
The pheromones of laying workers in two honeybee sister species : Apis cerana and Apis mellifera

Tan, Ken; Yang, Ming-Xian; Wang, Zheng-Wei; Radloff, Sarah E.; Pirk, Christian Walter Werner (Springer, 2012-04)

When a honeybee colony loses its queen, workers activate their ovaries and begin to lay eggs. This is accompanied by a shift in their pheromonal bouquet, which becomes more queen like. Workers of the Asian hive bee Apis ...
Reproductive biology of the Cape honeybee : a critique of Beekman et al.

Pirk, Christian Walter Werner; Lattorff, H. Michael G.; Moritz, Robin F.A.; Sole, Catherine L.; Radloff, Sarah E.; Neumann, Peter; Hepburn, H. Randall; Crewe, Robin M. (Oxford University Press, 2012-07)

A critique of “Asexually Produced Cape Honeybee Queens (Apis mellifera capensis) Reproduce Sexually”: Laying workers of the Cape honeybee parthenogenetically produce female offspring whereas queens typically produce males. ...
Responses of queenright and queenless workers of Apis cerana to 9-keto-2(E)-decenoic acid, a pheromonal constituent of the mandibular gland

Tan, Ken; Wang, Zheng-Wei; Li, Hua; Yang, Ming-Xian; Pirk, Christian Walter Werner; Hepburn, H. Randall; Radloff, Sarah E. (Springer, 2010-09)

In dequeened honeybee colonies ovarian activation occurs in some workers, and the pheromonal bouquets of these laying workers become more queen-like. In the Asiatic honeybee, Apis cerana, we compared the amounts of ...

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Browsing Research Articles (Zoology and Entomology) by Author "Radloff, Sarah E."

Browsing Research Articles (Zoology and Entomology) by Author "Radloff, Sarah E."

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