Kvalitativno istraživanje ishrane, razvoja i plodnosti grabežljive stjenice (Reduviidae) u odnosu na količinu raspoložive hrane

Nymphal instars and adults of a reduviid Neohaematorrhophus therasii Ambrose and Livingstone were fed with caterpillars of Corcyra cephalonica Stainton in four prey densities (one, two, four and eight caterpillars/day/predator). Developmental period, predatory rate, percentage of survival and adult longevity of predators were negatively affected by prey scarcity. Low prey densities increased the preoviposition period. Fecundity and hatchability were increased as a function of prey density. The total prey consumption rate of both the nymphal instars and adults were minimum and maximum is one and eight prey densities respectively.Stadiji nimfe i odrasli grabežljive stjenice Neohaematorrhophus therasii Ambrose i Livingstone hranjene su s gusjenicama Corcyra cephalonica Stainton u četiri stupnja raspoložive hrane (jedna, dvije, četiri i osam gusjenica po danu i predatoru). Smanjenje broja gusjenica negativno utječe na trajanje razvoja, brojnost, postotak preživljavanja i dužinu života imaga predatora. Niska gustoća raspoložive hrane produljuje trajanje sazrijevanja jaja. Plodnost i izlijeganje bili su u porastu s gustoćom raspoložive hrane. Ukupna ishrana nimfi i imaga bila je najmanja kod jedne gusjenice, odnosno najveća kod gustoće osam gusjenica