title: Nest defense behavior and reproductive success of laughing gulls sublethally dosed with parathion.
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D005260:Female; D008297:Male; D009425:Nesting Behavior / Q000187:drug effects*; D010278:Parathion / Q000633:toxicity*; D012098:Reproduction / Q000187:drug effects*
chemical_list: D010278:Parathion