%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Hamdi, F. %A Chadoeuf, J. %A Bonato, Olivier %T Functional relationships between plant feeding and prey feeding for a zoophytophagous bug %D 2013 %L fdi:010060544 %G ENG %J Physiological Entomology %@ 0307-6962 %K N-15 content ; Macrolophus pygmaeus ; phytophagy ; stable isotope ; zoophytophagy %M ISI:000322743600008 %N 3 %P 241-245 %R 10.1111/phen.12028 %U https://www.documentation.ird.fr/hor/fdi:010060544 %> https://www.documentation.ird.fr/intranet/publi/2013/09/010060544.pdf %V 38 %W Horizon (IRD) %X The consumption of plants by the zoophytophagous bug Macrolophus pygmaeus Rambur (Heteroptera : Miridae) in relation to the presence or absence of prey is monitored for 7 days. Tobacco plants enriched with N-15, a stable, nonradioactive isotope of nitrogen, are used for characterization. In the absence of prey, the relationship between time and N-15 content (which equates to plant feeding) is linear, with a constant daily accumulation of N-15; however, if prey are available, the mathematical relationship becomes curvilinear. From day 1 to day 5, feeding on plants is independent of the consumption of prey. The rate of N-15 accumulation decreases in the presence of prey after day 5, whereas the number of prey eaten remains unchanged. %$ 076 ; 080