Competitive asymmetry and coexistence in size-structured populations of brook trout and spring salamanders [interaction, Gyrinophilus porphyriticus, Salvelinus fontinalis]

biological competition crecimiento croissance depredadores dimension dimensions field experimentation freshwater ecology growth habitat habitats larvae larvas larve population structure predators salamanders salamandra salamandre salvelinus structure de la population supervivencia survie survival virginia virginie