Dispersal of dung containing ivermectin in the field by Onthophagus taurus (Coleoptera: Scarabaeidae)

anthelminthique anthelmintics avermectinas avermectine avermectins bousier bovin cattle drugs dung beetles efectos secundarios effet secondaire especies ganado bovino introduced varieties ivermectin ivermectina ivermectine medicamentos nontarget effects onthophagus pesticide pesticides plaguicidas residues residuos side effects species variedades naturalizadas