Publications by authors named "J Boeve"
Article Synopsis
- Sawfly species specialized in feeding on Ranunculaceae plants can sequester specific furostanol saponins into their haemolymph, which may help them in defense against predators.
- Research involving various chemical analyses and bioassays indicated that while one species predominantly fed on a non-nutritional stimulant from its host, both species showed differences in response to different plant fractions, with β-sitosterol identified as a nutritional stimulant.
- The study found that the larvae of both sawfly species do not produce ecdysteroids endogenously but accumulate them from their diet, using them effectively as a deterrent against ant predators, especially in the initial days following simulated attacks.
Phylogenomic approaches have recently helped elucidate various insect relationships, but large-scale comprehensive analyses on relationships within sawflies and woodwasps are still lacking. Here, we infer the relationships and long-term biogeographic history of these hymenopteran groups using a large dataset of 354 UCE loci collected from 385 species that represent all major lineages. Early Hymenoptera started diversifying during the Early Triassic ∼249 Ma and spread all over the ancient supercontinent Pangaea.
View Article and Find Full Text PDFAn objective of chemical ecology is to understand the chemical diversity across and within species, as well as the bioactivity of chemical compounds. We previously studied defensive volatiles from phytophagous insects that were subjected to parameter mapping sonification. The created sounds contained information about the repellent bioactivity of the volatiles, such as the repellence from the volatiles themselves when tested against live predators.
View Article and Find Full Text PDFSeveral sawfly species (Hymenoptera: Symphyta) possess larval stages with oesophageal diverticula in which plant compounds are sequestered and used for defence against predators. These organs are present in the larvae of Susana (Tenthredinidae) but remain poorly studied. Here, the aim was to analyse the diverticula extract of Susana cupressi by gas chromatography-mass spectrometry to better understand the ecology of this species.
View Article and Find Full Text PDFObjective: The study examined whether mother-child reciprocity across increasingly challenging contexts moderated the association between household chaos and early childhood behavior problems.
Background: Living in a chaotic household is associated with behavioral dysregulation in childhood. An important goal in discordant household contexts is to establish positive aspects of relationships that are associated with more favorable developmental outcomes.