The evolutionary history of Drosophila buzzatii. V. Differential survivorship on Opuntia between D. buzzatii and D. serido

A. Ruiz, H. Naveira, A. Fontdevila

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Abstract

Survival time of Drosophila buzzatii adults on an Opuntia (prickly pear) medium was significantly longer than that of its nearest relative D. serido. A significant difference was also found between D. buzzatii adults from two experimental populations, one of them fed on Opuntia rots for more than two years and another one kept on standard Drosophila medium for the same period of time. These results suggest that adult selection may be taking place in cactiphilic Drosophila in their natural habitats and could be responsible for the niche differentiation between D. buzzatii and D. serido. © 1985 Birkhäuser Verlag.
Original languageEnglish
Pages (from-to)129-131
JournalExperientia
Volume41
Issue number1
DOIs
Publication statusPublished - 1 Jan 1985

Keywords

  • Drosophila buzzatii
  • Drosophila serido
  • Drosophila, cactiphilic
  • feeding behavior
  • niche differentiation
  • Opuntia
  • survivorship, differential

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