Understanding the maintenance of sexual reproduction constitutes a difficult problem for
evolutionary biologists because of the immediate costs that sex seems to incur. Typically …

Neutral models characterize evolutionary or ecological patterns expected in the absence of
specific causal processes, such as natural selection or ecological interactions. In this study …

Exotic phytophagous insects are invading forest ecosystems worldwide. So far, 109 invasive
insects on woody plants, 57 from North American (NA), and 52 from Asia (A) have …

Background Despite great progress in studies on Wolbachia infection in insects, the
knowledge about its relations with beetle species, populations and individuals, and the …

We review the different modes of meiosis and its deviations encountered in polyploid
animals. Bisexual reproduction involving normal meiosis occurs in some allopolyploid frogs …

Wolbachia spp. are obligate intracellular bacteria present in reproductive tissues of many
arthropod species. Wolbachia infection status and roles in host reproduction were studied in …

Several parthenogenetic species of broad‐nosed weevils exist, some of them of economic
importance because of their pest status. Screening of the maternally inherited Wolbachia …

The present chaper deals with one of the groups of Curculionoidea, the subfamily
Entiminae, also known as? broad-nosed weevils?. The Curculionoidea are covered in …

Asexual forms of invertebrates are relatively common. They are often more successful than
their sexual progenitors. Especially in insects, the pattern called geographical …

Plant compounds associated with herbivore defence occur widely in floral nectar and can
impact pollinator health. We showed previously that Rhododendron ponticum nectar …