19 research outputs found
Purification of Substances from Achyrocline satureioides with Inhibitory Activity Against Paenibacillus larvae, the Causal Agent of American Foulbrood in Honeybeesâ Larvae
In vitro study of the antimicrobial activity of European propolis against Paenibacillus larvae
Bioactivity of gallic acidâconjugated silica nanoparticles against Paenibacillus larvae and their host, Apis mellifera honeybee
In vivo evaluation of antiparasitic activity of plant extracts on Nosema ceranae (Microsporidia)
Synthesis, characterization and antibacterial activity of biodegradable films prepared from Schiff bases of zein
Eco-evolutionary dynamics in Pacific salmon
Increasing acceptance of the idea that evolution can proceed rapidly has generated considerable interest in understanding the consequences of ongoing evolutionary change for populations, communities and ecosystems. The nascent field of âeco-evolutionary dynamics' considers these interactions, including reciprocal feedbacks between evolution and ecology. Empirical support for eco-evolutionary dynamics has emerged from several model systems, and we here present some possibilities for diverse and strong effects in Pacific salmon (Oncorhynchus spp.). We specifically focus on the consequences that natural selection on body size can have for salmon population dynamics, community (bear-salmon) interactions and ecosystem process (fluxes of salmon biomass between habitats). For example, we find that shifts in body size because of selection can alter fluxes across habitats by up to 11% compared with ecological (that is, numerical) effects. More generally, we show that selection within a generation can have large effects on ecological dynamics and so should be included within a complete eco-evolutionary framework