TY - JOUR T1 - Competition between the nymphs of two regionally co-occurring species of Notonecta (Hemiptera : Notonectidae) JO - FRESHWATER BIOL PY - 1999/08/01 AU - Briers RA AU - Warren PH ED - VL - 42 IS - 1 SP - 11 EP - 20 Y2 - 2024/10/23 ER -