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|Type:||Artigo de periódico|
|Title:||Seasonal patterns in the orientation system of the migratory ant Pachycondyla marginata|
de Barros, HGPL
|Abstract:||Route directions of migrations by the neotropical termite-hunting ant Pachycondyla marginata at a forest reserve in Southeast Brazil were analysed by circular statistic. Colony movement patterns were compared between the rainy/hot and dry/cold seasons. Migrations during the dry/cold season are significantly oriented 13 degrees with the magnetic North-South axis, while rainy/hot migrations do not exhibit a preferred direction. This result is discussed considering the hypothesis that P. marginata ants may use the geomagnetic field as an orientation cue for migrations in the dry/cold season. The presence of magnetic iron oxides in the head and abdomen of P. marginata is consistent with this suggestion.|
|Citation:||Naturwissenschaften. Springer-verlag, v. 88, n. 8, n. 343, n. 346, 2001.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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