Contrasting patch choosing by anthophilous ambush predators: vegetation and floral cues for decisions by a crab spider (Misumena vatia) and males and females of an ambush bug (Phymata americana)

摘要: Field-collected individuals of Misumena vatia and Phymata americana were compared experimentally as to the kind vegetation flower cues they use choose a hunting site, by introducing them into choice arenas with variously manipulated natural stems three species plant artificial flowers. showed strong preference for flowers or leaves both; P. did not prefer normal strongly it show statistically significant among various patches. Both predators discriminated Solidago canadensis, Daucus carota, Cirsium arvense, showing clear first. yellow on wooden sticks when given four different colours. preferred blue white red, no discrimination between colours same group (yellow vs. red). took longest time (ca. 43 min...