Animal structures occasionally attain extreme proportions, eclipsing in size the surrounding
body parts. We review insect examples of exaggerated traits, such as the mandibles of stag …

DNA barcoding identification needs a good characterization of intraspecific genetic
divergence to establish the limits between species. Yet, the number of barcodes per species …

Three large saproxylic cerambycids with different pest/legal status co-occur in the Iberian
oak woodlands, Cerambyx welensii (Cw), Cerambyx cerdo (Cc) and Prinobius myardi (Pm) …

DNA barcodes (ie, gene sequences used as identifiers for species identification) constitute a
very useful tool in invasive pest research. Using them, we studied, for the first time, the origin …

Plant–insect interactions are key model systems to assess how some species affect the
distribution, the abundance, and the evolution of others. Tree reproductive structures …

Host specialization has long been hypothesized to explain the extraordinary diversity of
phytophagous insects in the tropics. However, addressing this hypothesis has proved …

Weevils are the most important pre-dispersal acorn predators in the Mediterranean region,
where oaks often form mixed forests and different weevil species can coexist. The …

Species introduced to habitats outside their native range often escape control by their
natural enemies. Besides competing with native species, an alien species might also affect …

The effects of climate change on oaks Quercus spp. constitute a main environmental
concern for the conservation of temperate forests. In this context, we assessed the …

The weapons of beetles are well-known examples of sexually selected traits that have been
studied intensively since the time of Darwin. Although the patterns of variation in weapon …