Studying the "fly factor" phenomenon and its underlying mechanisms in house flies Musca domestica.

摘要: The "fly factor" was first discovered >60 years ago and describes the phenomenon that food currently or previously fed on by flies attracts more foraging than same type amount of kept inaccessible to flies. Since then, there has been little progress made understanding this phenomenon. Our objectives were (i) demonstrate existence fly factor in house flies, Musca domestica (ii) study underlying mechanisms may cause contribute factor. In 2-choice laboratory bioassays, we obtained unambiguous evidence for a demonstrated feeding are attractive nonfeeding fed-on is "clean" food. Of potential (fly excreta, metabolic output parameters [elevated temperature, relative humidity, carbon dioxide]), causing factor, feces, regurgitate do attract but none does. Even though produce significantly CO2 elevated levels have no behavior-modifying effect Preferential attraction feces indicates sense airborne semiochemicals emanating from these sources. Hypothesizing microbe-produced, future studies will aim at isolating mass producing microbes accumulate identification.