The importance of interspecific competition is a highly controversial and unresolved issue for community ecology in general, and for phytophagous insects in particular. Recent advancements, however, in our understanding of indirect (plant- and enemy-mediated) interactions challenge the historical paradigms of competition. Thus, in the context of this rapidly developing field, we re-evaluate the...

Growth chamber experiments with rapid-cycling Brassica rapa were designed to estimate the signsand magnitudes ofthe genetic correlationsfor plant performance in each ofthree conditions: no-competition (isolated plants), intraspecific competition, and interspecific competition with Raphanus sativa. Biomass and flower number were highest in the no-competition treatment, intermediate under intrasp...

Various assisted reproductive techniques have been developed and refined to obtain a large number of offspring from genetically superior animals or obtain offspring from infertile (or subfertile) animals. The embryo transfer is one assisted reproductive technique developed well, aimed at increased productivity of selected females, disease control, importation and exportation of livestock, rapid...

Termites are eusocial insects related to cockroaches that feed on lignocellulose. These insects are key species in ecosystems since they recycle a large amount of nutrients but also are pests, exerting major economic impacts. Knowledge on the molecular pathways underlying reproduction, caste differentiation or lignocellulose digestion would largely benefit from additional transcriptomic data. T...

Non-sticky latex beads and sticky diatoms were used as models to describe mutual coagulation between sticky and non-sticky particles. In mixed suspensions of beads and Thalassiosira nordenskjoeldii, both types of particles coagulated into mixed aggregates at specific rates, from which the interspecific coagulation effic~ency could be calculated. Stickiness between beads and T nordenskjoeldii wa...

Amplified fragment length polymorphism (AFLP) analysis was conducted on the wabisuke camellia and its relative species. Genetic identified among ‘Uraku’ camellia, offspring ‘Tosa-uraku’ Camellia japonica, whereas two accessions of old showed monomorphism in all fragments. The results suggested that trees are asexually-propagated clonal strains. genetic distance between cultivars Chinese camelli...

A partire dall’esperienza di etnografo-marinaio nel progetto Ermenautica, propongo inizialmente una prospettiva riduzione delle dimensioni del mare confrontando le wet ontologies (Steinberg, Peters 2019), riflessioni sulla significazione soggettiva degli oceani (Helmreich 2010, 2019) e il discorso sui regimi planetarietà in campo umanistico (Chakrabarty, Latour 2020). Successivamente, concentra...

PREMISE OF THE STUDY Interspecific reproductive barriers (IRBs) often prevent hybridization between closely related species in sympatry. In the tomato clade (Solanum section Lycopersicon), interspecific interactions between natural sympatric populations have not been evaluated previously. In this study, we assessed IRBs between members of the tomato clade from nine sympatric sites in Peru. ME...